US2395691A - Building with folding walls - Google Patents

Description

Feb. 26, 1946. F. M. SMITH 2,395,691

BUILDING WITH FOLDING WALLS Filed May 25, 1942 4 Sheets-Sheet l INVENTOR M 5211i Z5.

NEY

Feb. 26, 1946.v F.-M. SMITH BUILISING WITH FOLDING WALLS Filed May 25, 1942 4 Sheets-Sheet 2 v I E INVENTOR I 2 v/ZM ATTO Y5.

Feb. 26, 1946. F. M. SMITH BUILDING WITH FOLDING WALLS Filed May 25, 1942 4 Sheets-Sheet 3INVENTOR #4 7,? 9f

ATTORNEYS.

Feb. 26, 1946. F. M. SMITH BUILDING WITH FOLDING WALLS Filed May 25, 1942 4 Sheets-Sheet 4 v M M INVENTOR 774 )f 5 2172 2 W yfca ncr,

ATTORNEYS.

Patented Feb. 26, 1946 BUILDING wrrn FOLDING WALLS Frank M. Smith, Deal-born, Mich., assignor, by mesne assignments, to William B. Stout and Wilma Stout Fisher, both of Pontiac, Mich., copartners doing business as Stout Engineering Laboratories Application May 25, 1942, Serial No. 444,294

Claims.

This invention relates to expansible building structures. More particularly it relates to a novel and improved form of expansible building structure which is capable of being mounted upon wheels and towed from place to place by conventional automotive vehicles.

Heretofore numerous and various types of expansible building structures have been provided which structures may consist of a rigid framework constituting a, central or side portion of the building and foldable lateral side portions which may be extended when stationary in order to provide additional floor space when desired. It is a primary object of the present invention to provide an expansible building structure having a rigidly constructed or non-collapsible portion of approximately the size andshape convenient for towing behind an automotive vehicle. The invention further contemplates the provision of a building of the general type described having a novel arrangement of folding wall portions.

Objects of the invention include the provision of a building of the type described in which the various hinged sections are related to one another and to the permanent portions of the structure in a new and novel manner; the provision of a building of the type described in which the foldable wall portions are hinged to each other and/or to the permanent portion in a manner facilitating the folding and unfolding oper-' ations of such walls; the provision of a building of the type described in which each side of the foldable structure comprises portions foldable upon the corresponding end portions and the end portions, in turn, are foldable upon the sides of the permanent portion of the structure; the provision of a building structure of the type de-' scribed in'which the sides of the foldable structure include a pair of sections, one hinged to each of thecorresponding end wall sections, together with a panel section adapted to bridge the free ends of such side sections when the structure is in its unfolded position; the provision of a building structure as above described in which such additional panel section is hinged to one of said side sections and is foldable therea'gainst, and is foldable with such side section against the corresponding end section; the provision of a construction as above described in which such additional side panel is removably associated with both of said side sections and serve therewith to complete the enclosure of the corresponding side of the structure when in unfolded condition; and the provision of a building of the type described I having a novel foldable partition wall arranged for folding with the rest of the foldable portion of the structure in a new and novel manner.

Objects of the invention include the provision -of a building of the type described in which the weight of the foldable floor section or sections,-,

when in unfolded condition, serves to maintain the desired seal between itself or themselves and the foldable side and end wall portions without the necessity of employing clamping devices for this purpose; the provision of. a building structure of the type described in which the movable end and side wall portions are provided with flanges on the inner face thereof for reception of the corresponding margins of the foldable floor section therefor; and the provision of a building structure as above described in which the weight of the foldable floor portion of the device is primarily transferred to the ground or other supporting surface through the foldable side and end wall portions thereon Further objects of the present invention include the provision of a building of the type described including novel means for aligning and/or adjusting transverse wall sections with the remaining parts of the structure; the provision in a. building of the type described of a novel form of adjustable support for the transverse wall sections of the structure; the provision of a building of the type described having a novel form of weather seal between the movable and permanent roof sections thereof; and the provision in a building of the type described of a novel means for rigidily securing the foldable portions thereof in position when folded for shipping or transportation purposes.

The above being among the objects of the present invention the same consists in certain novel features of construction and combinations of parts to be hereinafter described with reference to the accompanying drawings, and then claimed, having the above and other objects in view.

In the accompanying drawings which illustrate a suitable embodiment of the present invention and in which like numerals refer to like parts throughout the several different views,

Fig. 1. is a perspective view of my building I structure-with the foldable walls thereof in folded condition and illustrating supporting wheels arranged below it and, in dot and dash lines, an automotive vehicle connected to it for towing purposes;

Fig. 2 is a perspective view of my improved building structure with the foldable walls thereof in extended position and as supported. from the ground'in a preferred manner;

the line 3-3 of Fig. 2 and illustrating the general plan of the building when the walls are in unfolded condition;

Fig. 4 is an enlarged fragmentary, sectional view taken on the line 4-4 of Fig. 2;

Fig. 5 is a fragmentary side elevational view taken looking in the direction of the arrow 5 ofFi 4;

Fig. 6 is an enlarged fragmentary vertical sectional view taken on the line 5-6 of Fig. 2 and illustrating the joint between the foldable roof sections and the permanent roof sections;

Fig. 7 is an enlarged fragmentary, vertical sectional view taken on the line 1-1 of Fig. 2 and illustrating the connection between a fold able end wall and the cooperating foldable roof section;

Fig. 8 is a fragmentary, enlarged vertical sectional view taken on the line 8-8 of Fig. 2 and illustrating the connection between the removable side panels and the foldable roof section;

Fig. 9 is an enlarged fragmentary, horizontal sectional view taken on the line 9-9 of Fig. 2 and-illustrating the connection between a foldable end section and the cooperating foldable side section;

. Fig. 10 is an enlarged fragmentary, vertical sectional view taken on the line Ill-i0 of Fig. 2 and illustrating the connection between a foldable floor section and a foldable side section;

Fig. 11 is a fragmentary, vertical sectional view taken transversely through the structure shown in Fig. 2 and illustrating one of the first operafolded condition illustrated in Fig. 2 to the folded condition illustrated in Fig. 1;

Fig. 12 is a fragmentary, horizontal sectional view taken through the structure illustrated in Fig. 2 but after the floor section has been moved to its folded position and after the foldable side wall portions have been folded inwardly upon the end wall sections, this constituting a second major step in the operation of folding the foldable sections together for transportation purposes;

Fig. 13 is a, view similar to Fig. 12 but illustrating the foldable side and end wall portions in their'final folded position;

Fig. 14 is a fragmentary, horizontal sectional view taken through a modified form of structure in its unfolded position;

Fig. 15 is a View of the structure shown in Fig. 14 when in its folded condition;

Fig. 16 is an enlarged, vertical sectional view taken on the line 6-46 of Fig. 14 and illustrating the adjustment provided for the hinged end wall sections;

Fig. 17 is an enlarged, fragmentary, transverse sectional view taken on the line ll-i1 of Fig. 16;

Fig. 18 is an enlarged, transverse, sectional view taken on the line lB-i8 of Fig. 16;

Fig. 19 is a view taken in the same horizontal plane as Fig. 18 and within the circle IQ of Fig. 14, showing an enlarged detail of the portion of structure employed between the foldable central partition member and the side of the permanent portion of the structure.

Fig. 20 is an enlarged, fragmentary, vertical, sectional view taken on the line 20-20 of Fig. 14 and illustrating the construction employed between the fioor and side walls of the structure.

Fig. 21 is an enlarged,fragmentary, vertical, sectional view showing the joint between the foldy 2,395,091 Fig. 3 is a horizontal sectional view-taken on able roof section and the upper edges ofthe foldable side wall sections; a Fig. 22 is an enlarged, fragmentary, horizontal, sectional view of the joint between cooperating side wall sections as included within thecircle 22 of Fig. 14 i Fig. 23 is an enlarged, fragmentary, vertical, sectional view of that portion of the structure shown within circle 23 of Fig. 16, namely that portion of the structure including the hinged joint between the foldable and permanent roof section of the structure, and with the foldable roof section in extended position;

Fig. 24 is a view similar to Fig. 23, but illustrates the arrangement of the parts when the foldable roof section is in folded position; and,

Fig. 25 is an enlarged, fragmentary, partially broken, partially sectioned elevational view illustrating the preferred form of means for holding the foldable sections in folded condition.

In structures of the type under consideration it will be appreciated that there-are two outstanding characteristics which are'de'sirably embodied therein. folding and unfolding of the foldable sections should be capable of being accomplished with a minimum of efiort and in a minimum of time. The second is that when the structure is expanded it should be amply wind and weatherproof. These are the characteristics which the building of the present invention has been designed to obtain.

7 The ease of the folding and unfolding operations tions in changing the construction from the unhas been obtained by hinging the roof sections and the floor sections to the permanent part of the structure for downward and upward folding with respect thereto. Likewise the end sections are hinged to the permanent part of the structure. The side sections each include a pair of side portions which are hinged to the outer ends of the foldable end sections. Thus the necessity of raising or lowering the side sections in the folding or unfolding is dispensed with for in this case the weight of the side sections is supported through the foldable end sections.

Inasmuch as the sides of such building will ordinarily be more than twice the width of the cooperating foldable end sections it will be appreciated that it is necessary that the side portion foldably associated with each end portionbe of no greater length than the width of such end section. Consequently where such condition obtains there will of necessity be an additional side portion to bridge the ends of the side portions hingedly connected to the end portions. In accordance with the present invention such additional side portion is constructed as a unitary portion or section which is either bodily remov- 1 able from its association with the folding sections of the structure and is readily secured thereto when the structure is in its unfolded condition so as to complete the continuity of the sides, or is hingedly mounted on the free end of the foldable side sections so as to be foldable thereon and foldable therewith against the corresponding foldable end section. This side portion where removable is, in accordance with the present invention, further employed for the purpose of temporarily supporting the roof in raised position while the folding or unfolding ofthe foldable side wall portions of the structure is in progress, and rigidly securing the associated side portions together in the expanded structure and maintaining them in their intended positions' The first of these is that the In accordance with one modification of the present invention that porilon of the weight of and on' the floor of the structure not supported by the permanent part of the structure is supported from the ground, not directly, but through the foldable side and end wall portions through the intermediary of suitable supporting flanges projecting inwardly from the lower edges thereof. The weight of the floor thus scrves to compress the strip of resilient sealing material which is interposed between the margins of the fioor and such flanges and thus maintains the joint between the fioor and the foldable side wall portions in wind and weatherproof condition at all times. The foldable roof section simply rests upon the upper edges of the foldable side and endwall portions and the weight thereof similarly compresses the strip of resilient sealing material which is interposed at such location and similarly maintains the joint between them in wind and weatherproof condition and without the aid of separate clamping devices provided for this purpose as necessary in most conventional constructions.

In accordance with the further phases of the present invention, the foldable end wall sections, and foldable partition sections where employed, are mounted in a novel manner upon the permanent part of the structure so that they may be adjusted in perfect alignment with the remaining portions of the structure and/or to conform to the supported relation of the foldable floor section, when in unfolded condition. This feature permits the various parts of the folding portion of the structure to be brought into proper registration with each other regardless of any slight irregularity in the plane of the permanent portion of the structure relative to the plane of the floor of the foldable portion of the structure. It is accomplished by providing a pivotal hinged post for the inner ends of the end wall sections and partitioned wall sections where employed. A further feature of the invention is the provision of a novel type of weather seal between the permanent roof and the fold-v able roof sections which remain weatherproof regardless of whether the foldableportion of the structure is in open or folded condition.

It is to be kept in mind that many of the details disclosed in the preferred embodiment shown in Figs. 1 to 13, inclusive, may, in addition to the features common to both the preferred and the modified form of construction shown, being employed in the modified construction if desired, and, likewise, many of the details shown only in the modified form of construction illustrated in Figs. 14 to 25, inclusive, may be employed in thepreferred form of construction.

The working out of this general type of construction has, of course, involved the provision of numerous details of construction throughout various parts of the structure which in and of themselves form supplementary portions of the invention herein and these will be discussed in.

this central permanent portion is of slightly greater length than the side extension or extensions provided by the foldable'sections, then that portion of the permanent central portion extending longitudinally beyond the foldable side portions will have permanentside wall portions 28 rigidly fixed to the floor, roof and corresponding end sections. In the case shown substantially the full extent of this longitudinally projecting portion of the permanent central portion is at the forward endof the structure. If the foldable side extension is provided onone side of the permanent central portion only, then, of course,theside wall 28 for the opposite side will extend thefull length thereof. Otherwise the sides of the permanent central portion may be open or if desired and as indicated best in Fig. 3 partition walls such as 30 may be provided for partitioning off areas for use as a kitchen, closet, etc.

Where it is-desired that this building structure be mobile, then wheels such as 32 may be suitably mounted below thefloor 20, the front wheels being steerable and being provided with a cooperatingdraft bar 34 through which the structure may be connected to an automotive vehicle such as indicated at 36 in Fig. 1 so that it may be towed thereby. Thewheels 32 are preferably removable so that when the structure is to be located at one spot for a material length of time the weight thereof will not be imposed upon the wheels but may be taken by suitably arranged posts, jacks, base, or the like. On the other hand, when the structure is not intended to be mobile in and of itself, then the wheels and connecting running gear may be eliminated and any change in the location of the structure be accomplished by trucks, trailers or the like.

It will be appreciated that the structure may be provided with foldable sections on one side only. in which case one of the permanentside wall portion 28 will. be extended for the full length of the permanent central portion on that side thereof opposite the foldable section.

. the other hand, such foldable sections may be positioned on both sides of the permanent central section and this is the construction shown in the drawings by way of illustration. However, inasmuch as in such case the foldable sections on .both sides of the central permanent portion will usuallybe identical to each other or at least may be identical to each other except that one side is righthand and the other side lefthand, a description of the foldable sections on one side of the structure will be sufficient for the purposes herein to describe both sides.

,section 44, a one-piecerear wall section 46,

and a side wall comprising two one-piece sections 48 and a one-piececentral panel 50.

Eachbottom section 40 when in unfolded con- 1 dition is, of course, flush with thebottom section 20 of the permanent central portion of the structure and its inner edge is hinged thereto as indicated at 60 in Fig. 11 so that, it may swing from an unfolded horizontal position to a vertical position. Theroof section 26 for the permanent central portion of the structure may be either flat, curved or of any other desirable conforma tion but thefoldable roof sections 42 must, of

course, be flat in order to provide for propermanent root section 26 is shown as of more or less arcuate conformation and the corresponding marginal ed es of theroldable r001 sections 42 are hingedly connected thereto in the manner illustrated in Fig. 6. Thi is by means of a hinge structure comprising twosheet metal portions 62 and which are rigidly secured to the edges of thepermanent roof section 26 andfoldable roof section 42, respectively, as by means ofscrews 66. Thehinge parts 62 and 64 extend the full length of thecorresponding roof section 42 and are bent to form partially cylindrical eyes one of which is received within the other to thus pivotally connect the two parts together. This form of hinge structure is substantially wind and weather-proof and is, therefore, desirable for use at this location. Preferably, thepermanent roof section 26 is provided with an overhanging flange 68 which projects over the hinge structure 62-64 at such edge and partially overlaps the inner edge of the correspondingfoldable roof section 42 when the latter is in its unfolded position as indicated in Fig. 6.

The foldableend wall sections 44 and 46 which are of a width not greater than half of the length of the foldable portion of the structure, are each hinged along their inner edge to the permanent central portion of the structure by means of hinges '10 best brought out in Figs. 12 and 13. For the purpose of locating the hinges 10 outwardly beyond the hinge line between thefloor sections 40 to permit the desired folding action of the end and side wall portions as will hereinafter be more apparent, the permanent central portion in line with eachend wall 44 and 46 when in unfolded condition is provided ith an outwardly projecting stud orwall portion 12 for receiving the corresponding hinge 10.

Eachside wall section 48 is pivotally connected along a vertical line to the outer end of the correspondingend wall section 44 or 46 as at 14 and as bestbrought out in Figs. 9, 12 and 13. As previously mentioned the width of eachside wall section 48 is no greater than the width of the corresponding end wall section '44 or 46 so that it may be folded against such end wall section as illustrated in Fig. 12 and then folded with the end wall section inwardly into parallel relation with respect to the sides of the permanent central portion as illustrated in Fig. 13.

In order to render the joint between eachside wall section 48 and its correspondingend wall section 44 or 46 wind and weatherproof, such joint is preferably treated in the manner illustrated in Fig. 9. As illustrated in that figure a metal strip 16 is arranged with one margin thereof fixed to the outer face of thecorresponding end wall 44 or 46 and it extends from the outer edge of such end wall into contacting and partially overlapping relation with respect to the outer face of the corresponding edge of the Correspondingside wall section 48 when the latter it and suchside wall section 48. Additionally, preferably a mass ofinsulation material 18 is applied between the strip I6 and the corresponding end of theend wall sections 44, 46 so as to insulate the joint against the transfer of heat and to render it more weatherproof.

Inasmuch as the side walls will ordinarily be" of a length more than twice the width of theend sections 44 and 46 it will be appreciated that theside wall sections 48 in being of no greater width than the width of the end wall sections will not meet each other when the structure is in unfolded condition. In accordance with the present invention the space between the free edges of theside wall sections 48 when in unfolded condition is closed by apanel 50. In the construction illustrated in Figs. 1 to 13, inclusive, thepanel 50 is a removable member while in the modification shown in .the remaining figures its equivalent is pivoted to the free edge of one of the foldable side sections. Even though the length of the foldable sides of the structure is substantially equal to twice the width of theend sections 44 and 46, under which circumstances theside wall sections 48 might possibly be made of sufflcient width to meet each other at the center, in accordance with the present invention there will always be sufiicient space left between the free edges of the same for the provision of a member corresponding with themember 50. Under the latter conditions themember 50 may, of course, simply comprise a column or post. On the other hand where the free ends of theside sections 48 are widely spaced from one another, then the members 58 may comprise panels of material width. For the purposes of description in the following specification and claims it will be understood that the term panel when reierring to themembers 50 is intended to be interpreted broadly enough to cover any width of the same.

In accordance with one modification of the present invention theside wall sections 48 andend wall sections 44 and 46 support the corresponding margins of thefoldable floor sections 40. While this may be accomplished in any suitable manner in accordance with the broader aspects of the present invention, the particular means shown and as best brought out in Fig. 10 compriseangles 80 overlying the lower outer margins and bottom edges of the corresponding side or end wall sections and fixed thereto by screws '82. The bottom flange of theangles 80 projects inwardly beyond the inner face of such side or end wall sections so as to provide a ledge for receiving the corresponding margins of thefloor section 40 as indicated in Fig. 10. In order to provide a seal at this point a strip of sealing material 84', preferably of a compressible nature, is applied to the upper surface of the inwardly projecting portion of the lower flange of the angles and receive the corresponding, margins of thefloor 40 thereon. Thus the weight of thefloor 40 and the parts supported thereby automatically serves to maintain the seal" between thefloor 48 and the cooperating foldable sections and no clamping or other means is necessary to maintain the seal which becomes effective when the floor is lowered into its extended position.

Asimilar sealing strip 86 is provided along the upper edges of the foldableend wall sections 44 and 46 andside wall sections 48, as well as thepanel 50 so that when thecorresponding roof sections 42 rest thereon when the structure is in its unfolded condition and as illustrated in Fig. '7, the weight of theroof section 42 serves to compress theseal 86 and to maintain the seal effective at this point. As also best brought out in Fig. 7 and also in Fig. 8 theroof panels 42 are made of such size as to project outwardly beyond the outer faces of thecorresponding end walls 40 and 48 and thesidewall sections 48 so as to form an eave over the same, A channel sectionedsheet metal member 88 is arranged in enveloping relation "with respect to the forward, rearward, and outer marginal edges of eachroof section 42, as best indicated in Figs. 7 and 8 and its lower leg terminates in a downwardly projectingflange 90 which is adapted to lie in flush and contacting relationship with the outer face'of the upper margins of the corresponding end and side 'wall sections as indicated. If desired screws or bolts such as 92 may be projected through the flanges and into the corresponding end or side wall sections after the same have been arranged in their unfolded condition so as to aid in maintaining them in such'position, although ordinarily no such means tions 48 are secured against separation with respect to each other with thepanel 50 securely embraced between them.

As best brought out in Fig. 8 theroof section 42 inline with the upper edge of thepanel 50 is provided with a downwardly projecting channelsectional bracket member I I0rigidly fixed thereto. The upper edge of thepanel 50 is notched out for complementary reception around the outside of such bracket H0. Within the thickness of thepanel 50 the bracket H0 is provided with an opening I I2 in the lower wall thereof. In line means of screws or bolts M5, the hook-like elewill be necessary as will hereinafter be more apparent.

Thepanel 50 is, of course, of a height equal to course, is of a width suflicient to snugly fit between the opposed edges of the foldableside wall sections 48 when the latter are in their unfolded condition and as brought out in Fig. 4. Also as brought out in Fig. 4 thepanel 50 is provided on its outer side with laterally projectingflanges 94 which are adapted to overlie the outer.

faces of the marginal edges of the corresponding foldableside wall sections 48 to aid in sealin the joints at these points. As also best brought out in Figs. 4 and 5 eachfoldable sidewall section 48 has fixed to its inner face astrip 96 which projects beyond the end of such side wall sections and, therefore, provides anabutment for the outer margins of the inner face of the panel- 50 to abut against when assembled thereto.

In order to secure the side wall portions and their cooperatingpanel 50 in assembled relation when the structure is in its unfolded condition, thepanel 50 is provided with a plurality ofbars 98,as brought out in Figs. 4' and 5, pivot-' ally secured centrally of the inner face thereof by means of bolts I00, thebars 98 being spaced from one another vertically of thepanel 50.

Thebars 98 are each of sufficient length so that when horizontally positioned the opposite ends thereof are capable of overlapping the cooper ating strips 96 on the cooperatingpanels 48 and such ends are provided with laterally opening,

.50 is assembled to theside wall sections 48 thebars 98 are swung about the axis of their corresponding bolts I00 to engage the bolts I04 in the slots I02 and then the bolts I04 are simply tightened down to clamp thebar 98 in such position. By this means not only is the panel secured in sealing relation with respect to the side wallsections 48 but the. two side wall sec- .the height of theside wall section 48 and, of r ment or elements being capable of being projected up through the correspondingopening or openings II 2 and into overlying relationship with respect to the lower wall of the bracket H0 as brought out in Fig. 8. By this means a disengageable connection is provided between the upper end of thepanel 50 and theroof section 42 but one in which when the parts are engaged as secured to the correspondingfoldable floor section 40 in alignment therewith to secure the lower end of thepanel 50 against outward movement in the final unfolded structure.

It will, of course, be appreciated that suitable doors such as I and windows I22-may be pro- .vided where desired in the side or end walls of either or both the rigid central section of the structure or the foldable wall sections thereof, one door at least being provided in the rigid central section to provide access thereto when the structure is in folded condition.

When the structure is set up in unfolded condition, then particularly the outer edges of the foldableside wall sections 48 andpanels 50 may be supported from the ground in any suitable manner but preferably through the use of vertically adjustable jackssuch as the jacks I illustrated in Figs. 2 and 11. Similar jacks may be placed under the lower edges of other vertical walls if desirable or necessary.

As best brought out in Fig.12 the hinge line for each bottom section is so located that when thebottom section 40 is swung into upright position as illustrated in Fig. 12 it is longitudinally aligned with theside wall section 28 of the rigid central section. It has already been mentioned that the hinge line I0 connecting thefront walls 44 and therear walls 48 with the central rigid portion of the structure are outwardly offset from the plane of theside wall portion 28 by a distance equal to the thickness of anend wall section 44 or 46 and aside wall section 48, sothat when the side wall section is folded upon'an end wall and the ,end wall section is folded into parallelism with the sides of the central rigid portion of the structure the correspondingside wall section 48 will lie fiat against the outer face of thecorresponding floor section 40 when in raised position and as illustrated in Fig. 13. In a similar manner the hinge line between eachroof section 42 and theroof 26 of the rigid central portion 'of the structure is outwardly offset from a vertical plane including the hinge lines III on the same side of the central rigid portion of the structure by a distance such that when the parts are folded together as illustrated in Fig. 1.3 theroof section 42 may be lowered and its normally under-surface lies in fiat contacting relationship with respect to the outer faces of the correspondingend wall sections 44 and 46, this being the relation of th parts as shown in Fig. l.

For holding the various foldable wall sections,

in the above described position for transportation bolts I40, best illustrated in Figs. 1, 2, '7 and 8 are loosely projected through the marginal eave portion of each roof section in the manner best brought out in Figs. 7 and 8 The bolts I40 are projected through the side wall portions of the channel sectionededge binding members 80 for the cave-like portions of thetop section 42 and are of a suflicient length to project a material distance beyond the same. While any number of such bolts I40 may be employed for eachroof section 42, it has been found sufflcient for ordinary sized structures if one is employed centrally of each free edge of such roof section as indicated in the drawings. Nuts I42, one of which is indicated in Fig. 2, are anchored into the rigid central portion of the structure in such position that when the structure is in the folded condition 11- lustrated in Fig. 1 one nut will be axially aligned with each bolt I40. Accordingly, when the structure is folded as illustrated in Fig. 1 the bolts I40 are projected into their correspondingnut 42 and tightened down and this thus serves to rigidly clamp all of the foldable sections together and to the rigid central portion of the structure so that the foldable sections will be immovable with respect to the rigid central section during transportation. In this connection it may be noted that suitable stops, for instance such as the stops I44 best shown in Fig. 11, may be provided for engagement with the edges of thefloor section 40 when in folded condition in order to permit the aforementioned clamping effect by the roof section in tightening up the bolts I40. Theside panels 50 are, of course, not included in the folded assembly of the above mentioned section. They are simply removed and placed within the rigid central portion of the structure during transportation. It will be appreciated from the above that theend sections 44 and 46 should not be over half the length of the cooperatingfloor section 40, otherwise the end sections would overlap at the center of the structure when folded.

The above described structure is, of course, in the condition illustrated in Fig. 1 during transportation. When it is desired to stop and set up the structure a suitable location is found and if the stay is intended to be for a material length of time suitable jacks, posts, or other supporting means are first positioned under the rigid central portion of the structure, care being taken to arrange the floor in a horizontal plane, and then preferably thewheels 32 are removed. A description of unfolding one side only of the structure will suffice to describe the unfolding of both sides. The bolts I40 are then removed, thepanel 50 is taken out of the rigid central portion of the structure, the lower edge of theroof section 42 is grasped and pulled outwardlyand the upper end of thepanel 50 is hooked into theroof section 42 in the manner illustrated in Fig. 8. Thepanel 50 may then be employed for the .purpose of temporarilysupporting theroof section 42 during the unfolding of the remaining section and for this purpose theroof section 42 is raised to above its normal position as illus- Ill trated in Fig. 11 with the lower end of thepanel 50 disposed outwardly of its normal position as also shown in that figure, and a jack I30 is positioned under the lower edge of thepanel 50 to hold the roof in such raised position. Next the two assemblies of" theend sections 44 and 46 and theirconnected side sections 48 are swung outwardly to the position illustrated in Fig. 12, and then theside sections 48 are swung outwardly about the pivot lines I4 until they assume their normal'unfolded position. Jacks I30 are then interposed under the outer edges of theside sections 48 and under the lower edges of theend sections 44 and 46 if desired. Thefioor section 40 may then be lowered until its outer margins rest upon the ledges provided by the inwardly extending ends of the angles secured to theside sections 48 andend sections 44 and 46. The jack I30 under the lower end of thepanel 50 may thenbe lowered to allow theroof section 42 to rest upon the upper edges of K the side and endsections 44 and 46 and thepanel 50 may then be moved into final position between the free ends of the side section-48 and then secured in place therein in the manner described in connection with the description of Figs. 4 and 5, whereupon the structure is then in its completely unfolded condition. The lower end of thepanel 50 may then be hooked to the correspond ing eye H8 of the fioor section so as to complete .the securing of these parts in their assembled position.

- In folding up the structure for transportation purposes the reverse of the above described operation is, of course, followed out. In other words, the floor end of thepanel 50 is first disengaged from thefloor section 40 and its lower end is moved outwardly between the free ends of the corresponding sidesections 48 and is raised to raise theroof 42 from the side and end sections. The floor is then folded upwardly, the side sections folded against the end sections and the two then folded inwardly against the floor section, upon which thepanel 50 may be disengaged from theroof section 42 and the latter be allowed to swing downwardly over the previously folded sections upon which the bolts I40 may be inserted into the corresponding nuts I42 and tightened up to clamp all of these parts in-their folded condition. It might be noted here that the flanges of the roofedge binding members 88 are located outwardly beyond the corresponding edges of the end andside panels 44, 46 and 48 when the structure is so folded.

Inasmuch as theroof sections 42 are required to take substantially no load other than the possible weight of snow that may fall thereon, they may be made relatively light and may be raised and lowered manually by a person without undue difliculty. Thefloor sections 40, however, must be made sufiiciently strong to carry the load of the occupants and of the furniture or other equipment that may be supported thereon during use and, therefore, particularly in the larger sized structures, may be relatively heavy and difiicult for a single person to handle manually. For this reason it may be desirable to provide some mechanical means for facilitating the raising and lowering of the same. One form of mechanism for this purpose is illustrated in the drawing and is as follows. I A reduction gear device indicated generally at I50 is suitably supported and,

handle B54 thereon. Its driven shaft I56, which rotates at a reduced rate of speed as compared to the shaft I52, is provided with a pair of winding drums I58 fixed thereto. About each winding drum is wrapped a fiexible cable I60 and the free end of each cable I60 terminates in a hook. The hooks on the ends of. the cables I60 are adapted for interengagement with'the eyes H6 on thecorresponding floor section 40 and upon engaging such hook with such eyes the crank I54 may be turned to thus cause thefioor sections 40 to be raised. When it is desired to lower the -fioor sections 40 the crank I54 is, of course, simply turnedin the reverse direction and thefioorsections 40 thus allowed to move to horizontal position in an easy and controlled manner.

From the above it will be appreciated that with the construction described, in either folding or unfolding each side of the structure itirequires nly one member to be lifted. In other words in opening out the construction from the condition illustrated in Fig. 1 to the condition illustrated in Fig. 2 the roof sections 02 only need to be lifted and in folding up the structure from the condition illustrated in Fig. 2 to that illustrated in Fig. 1 thefloor sections 40 only need to be'lifted. By pivoting theside sections 46 to theend sections 46 the folding thereof may be accomplished without any lifting whatever and the hinge structures in such case are sumcient to support all of the load; As a result a' minimum of work is required to unfold or fold up the structure and, of course, it may be accomplished in a relatively short length of time.

At the same time because of the manner of sealing the floor section and the roof section to the side and end sections a completely wind and weatherproof construction is provided. The character of the hinge structure between the roof section and thepermanent roof section 26 aids, of course, in the latter respect.

In the modified form of construction shown in Figs. 14 to 25, inclusive, the permanent portion of the structure includes afloor 200, aroof 202,

and endwalls 204 which may be of any suitable construction. This permanent portion of the structure may or may not have side walls-but in the construction shownit is provided withside walls 206 provided with door openings 208 therein providing access between the permanent part of the structure and the foldable part of the structure. As in the first described construction theend walls 204 project laterally outwardly beyond the sides of the permanent portion of the structure, in this case beyond theside walls 206, and such projecting portions in the embodiment shown include inwardly spaced wall portions 204a. The foldable end walls 2l0 are hinged to the inner face of the portions 204a in a novel manner which will hereinafter be described in detail.

A foldable side wall section 2l2 is hingedly secured at one end edge to the outer vertically directed edge of each foldable endwall section ings 228 and through each op wardly against the outer face of its supporting side section 2l2 and then folded with such side section 2l2 against the corresponding end wall section 2l0 upon which all three of these sections may be folded inwardly against theside wall 206 of the permanent central portion of the structure in the manner illustrated in Fig. 15.

The foldable end and side wall sections of this modified form of construction are thus arranged to be folded and unfolded in exactly the same manner as in the first described construction, the main difference in this portion of the two structures being that the additional side panel instead of being removable as in the first described construction is in this case permanently attached to but foldable relative to and with one of the foldable side sections.

The above described difference in the side wall construction requires a different method of sealing it against the weather when in unfolded condition from the method employed in connection with the panel of the first described construction. As best illustrated in Fig. 22, in this case the free vertical edge of thepanel 216 and the cooperating edge of the foldable side section 2l2 are complementarily stepped as illustrated in Fig. 22, and a strip of felt or other resilient and compressible material 220 is interposed between the opposed faces of this stepped joint. To hold this joint rigidly in position when the .structure is in unfolded condition aplate 222 is extended vertically over the line of break between thesections 212 and 2I6 on the inside faces thereof and asimilar plate 224 is extended over the line of break on the outside faces thereof. Theplate 222 has a plurality ofcylindrical nuts 226 suitably fixed to the outer face thereof, as by welding or the like, which are received inopenings 228 provided in the stepped inner edge of the panel 2l2 and project approximately through'the thickness of such stepped edge. The opposed'stepped edge of thepanel 2| 6 is provided withopenings 230 aligned with the opening 230 ascrew 232 is projected and through 220 and threaded into thecorresponding nut 226. Thestrip 224 on the outer face is provided with suitable openings therein aligned with theopenings 230 for passage of thescrews 232. Awasher 234 is placed under the head of eachscrew 232 so as .to transmit the holding force of thescrew 232 to thestrip 224. Itwill be appreciated that when thescrews 232 are tightened up thestrips 222 and 224 are caused to clamp the stepped edges of the panels 2l2 and U6 firmly together and to hold them rigidly in alignment and with the strip 220 suitably compressed to seal the joint between the sections or panels 2l2 and 2|6 against wind and weather.

In the modification illustrated in Figs. 14 to 25, inclusive, and as particularly brought out in Figs. 14 and 15 apartition wall 236 is provided which divides the foldable portion of the structure, on the corresponding side of the permanent structure, lengthwise into two separate rooms. Thepartition wall 236 is positioned midway the length of thepermanent side wall 206 in the embodiment shown and is hinged thereto in a manner similar to that by which the end sections 2l0 are hinged to the permanent structure and which will be described in further detail later, and thepartition 236 is adapted to fold against theside walls 206 in a direction opposite to that in which the panel section 2l 6 will lie against theside wall 206 when in folded position. By this arrangehe sealing strip.

ment and as bestbrought out in Fig. 15 there will be three thicknesses of foldable sections lying against each end of thepermanent side section 206 for the roof and floor sections to fold against. In the modification illustrated in Figs. 14 to 25, inclusive, instead of supporting the weight of the floor through the foldable side and end walls as structure, as shown in Fig. 16, and is of such size that its outer edges extend outwardly into approximately flush relationship with respect to the outer faces of the foldable side and end wall sections. As shown in Fig. 2b asealing strip 246 is extended over the length of the joint between the floor and the side and end wall sections and is secured to the outer edges of thefloor section 236 byscrews 242 and is set into the lower outer marginal portion of the side and end wall portions so that its outer face is flush with the outer faces of the associated side and/or end wall sections.

Ametal strip 244 is in turn extended over the joint betweenthestrip 240 and the corresponding side and/or end wall section to provide a weatherproof seal and is held in place byscrews 246 the lower row of which also project through the upper edge of the associatedstrip 240 to secure it to such associated side or end panel. Thestrip 240 thus provides a stop for limiting outward-movement of the side and end wall sections 2), 212 and 2l6 relative to the outer edge of thefloor 206.

As also illustrated in Fig. 20, a wedge-like strip 248 is preferably secured to the outer upper marginal edge portion of thefloor 236 for engagement with the side and end wall sections as they are unfolded to aid in supporting the lower edges of such side and end wall sections on the floor and to provide clearance between the lower edges thereof and the floor during the folding and unfolding operations. When the side and end wall sections have been unfolded, then a molding strip such as 250 is preferably applied along the joint between the lower inner edges of the side and end wall sections and the floor to further aid in sealing this joint.Such molding strip 250 is preferably provided with a wedgelike extension 252 which projects under the lower inner edges of such foldable sections and serves with thestrip 248 in the support of such foldable sections from thefloor 236.

Thefoldable roof section 260 which is, of course. a single unit, is hinged to the outer side marginal edge of thepermanent roof section 202 by means of apiano type hinge 262 in this modified form of construction as best shown in Figs. 23 and 24. Preferably a strip of felt or other resilient sealing material such as 264 is interposed between the opposite plates of the hinge so that, as illustrated in Fig. 23, when theroof section 222 is in unfolded condition thestrip 264 is compressed thereby to effectively seal the joint between it and the permanent roof section. This wardly over the upper marginal edge of thestrip 264 to thereby secure it in position.

Thepermanent roof section 202 is preferably provided with a relatively thin sheet-like covering 210 which projects outwardly into overlapping relationship with respect to the inner marginal edge of thefoldable roof section 260. In order to provide a weatherproof joint at this point in addition to thesealing strip 264, a strip offlexible material 212, impervious to the passage of air and water and which maybe canvass or other suitably treated fabric, is secured and sealed at its opposite margins to the outer marginal edge of thesheet 210 and to the upper outer marginal edge of the foldable wall section 266. Thisflexible strip 212 is of such length that when the foldable roof section is in its folded position as illustrated in Fig. 24 thestrip 212 is of sufficient length to abridge the distance between the two edges of the permanent and foldable roof sections to which its opposite edges are secured. and when the foldable roof section is in its unfolded position as illustrated in Fig. 23, thestrip 22 simply folds inwardly as shown. Thus thestrip 212 provides a weatherproof seal between the foldable roof section and the permanent roof section in both .the folded and unfolded position of the latter.

In a manner similar to the first described constriction, the outer marginal edges of thefoldable roof section 260 are received upon and supported by the upper edges of the foldable I side and end wall sections and in asimilar manstrip 264 is preferably secured to that plate of the thin metal strip 268 which, after thestrip 264 has been applied, is bent outwardly and downner and as best illustrated in Fig. 21 a compressible and preferably resilient felt or other sealing strip such as 280 is interposed between such marginal edges of thefoldable roof section 260 and such upper edges of the'foldable end and side wall sections to provide a seal for the joints between these parts. Also, and in a manner similar to the first described construction the foldable roof section 266 projects outwardly over the associated foldable end and side wall sections and it is provided on its outer edge with preferably a sheetmetal strip member 282 which extends downwardly into overlapping relationship with respect to the joints between the foldable roof section and the foldable end and side wall sections as illustrated in Fig. 21. This last figure also illustrates a preferred method of securing thefoldable roof section 260 to the various foldable end and side wall sections and this comprises a hingedhasp 284 secured to the corresponding foldable end or side wall section and each of which engages over an eyemember 266 fixed to the outer edge of thefoldable roof section 260 and through which a pin or othersuitable fastening device 288 maybe passed to releasably secure these parts together.

In structures of the type herein under consideration it will be appreciated that in constructions as heretofore provided and employing fixed hinges between the' permanent part of the structure and the foldable end wall portions thereof, unless, during the operation of unfolding the structure and setting it up in its unfolded condition the permanent and foldable floor portions of the structure are arranged in perfectly aligned relation with respect to each other, that is in either flush or in perfectly parallel relation, it is impossible to maintain a perfect fit between all of the foldable portions of the structure. In other words .unless such perfect alignment of the permanent and foldable floor sections is provided there is bound to be a asoaeer space between the end walisand the foldable roof and floor sections which can only be remedied in the structures heretofore provided by re-adjusting the pivotal or foldable position of the foldable floor section. Such readjustment is liable to involve considerable amount of work and loss of time and is particularly inconvenient where the foldable portion of the struc-' ture might otherwise be supported directly upon some solid foundation.

In order to obviate the above described disadvantages of previous construction the present invention provides a means for limited adjustment of the hinge joint between the foldable end wall sections and the permanent part of the structure, permitting such side wall portions to be adjusted to conform to slight but nevertheless material variations in the plane of the floor of the foldable section with respect to the plane of the floor of the permanent part of the structure. The manner in which this is accomplished in the particular embodiment illustrated in Fig. 14 to 25, inclusive, is brought out in Figs. and 18.

Referring to these last-mentioned figures it will be noted in the particular embodiment shown each foldable end wall section 2 i is connected to the outwardly projecting portion 209a of the corresponding fixedend wall 204 by a,piano type hinge 290, but thehinge 290 instead of being connected directly to the end wall portion 204a is, instead, connected to astrip 292 which overlies the inner face of the end wall portion 209a. Ametal strip 294 extends al ng the inner face of themember 292 for subst ntially the full length thereof, which is equal to the height of the corresponding foldable endwall section 210-, and thisstrip 294 has welded or otherwise fixed to its outer face a plurality, shown in the drawing as seven in number, studs 299. Thesestuds 290 project throughholes 298 in thestrip 292 provided therein to receive the same and are preferably relatively closely received in such holes. Additionally thestrip 294 is preferably fixed with respect to themember 292 as by means ofscrews 300. Thestuds 298 project through the thickness of the member 204a and through aplate 302 which overlies the outer face of the same and outwardly of theplate 302 eachstud 298 is provided with anut 304. Thestuds 298 in projecting through the corresponding member 204a project through holes 309 formed therein for reception of the same. These holes, as illustrated in Figs. 16, 1'7 and 18, are peculiar in this respect that, as illustrated in Fig. 18, the central hole 309, that is the one midway between the opposite ends of-themember 292, more or less accurately fits thecorresponding stud 296, whereas theholes 306 both upwardly and downwardly from the central hole 909 are progressively wider than each other. Thus as best brought out in Fig. 17 the holes above and below thecentral hole 306 are modified to provide transversely directed slots each of which is of increased width as compared to the next ad- Jacent one toward the central hole 309. It will be appreciated that by this construction the central stud 299 may serve as a pivot pin for thestrip member 292 and that by loosening thevarious nuts 304 thewhole member 292 and consequently the associated foldableend wall section 2 l0 may pivot about the axis of the central stud 299 to move the opposite ends of themember 292 either outwardly or inwardly as may be required to bring the lower edge of the correspending and wall section 2i0 into parallelism with the foldable floor section 233 regardless of the position it may assume under any particular circumstances, upon which the various nuts Std may be tightened up to lock themember 292 in such pivotally adjusted position and thereby render thehinge joint 290 thereof thereafter releasably fixed in such adjusted position. It will be appreciated that by this construction the foldable end wall sections of the foldable part of the structure may be quickly and easily ad justed to conform to the particular position of the foldable floor section of the structure regardless of its alignment with the floor section of the permanent part of the structure and within, of course, reasonable limits of such mis alignment.

Where a foldable partition member such as the partition member 233 is provided and where the foldable end wall sections 2H3 are pivotally adjustable as above described in order to permit them to conform to the particular position that the foldable floor section 239 may assume in any case, it will be appreciated that the partition member 239 should be likewise capable of being adjusted to vary the relation of its hinge joint with respect to the permanent part of the structure to conform.- Accordingly, in suchcase thefoldable partition member 230 is provided with a hinge support of the same general nature as the hinge support for the foldable end wall section 2i0 above described. In other words and now referring to Fig. 19 it will be noted that the side wall 209 of the permanent part of the structure in approximate alignment with the plane of the partition member 289 when extended is provided with a vertically extending strip M0, and a second strip M2 is hingedly connected to thestrip 3| 0 for pivotal movement about a vertically extending line by means of apiano type hinge 3. The inner vertical edge of the partition wall 239 is fixed to thestrip 3 in the same general manner that thestrip 292 previously described is connected to its corresponding end wall portion 204a. In other words a metal strip 3I9 which extends along one vertical inner margin of thepartition member 236 is provided with a plurality of studs M8 fixed thereto and which project not only'through the thickness of the partition member 239 but also through the thickness of the strip 3l2. Thecentral stud 3! fits into a corresponding hole in the strip M2 in exactly the same manner that thecentral stud 296 fits its hole 309 in the member 204a as previously described, and thosestuds 3 both above and below such central stud are received in progressively wider holes or slots in the members 3I2 so as to permit pivotal adjustment between the partition member '239 and the member 3l2. Eachstud 3! is, of course, provided with a cooperating nut such as 320 by means of which thepartition member 236 and the strip member 3l2 may be locked in their pivotally adjusted positions'with respect to each other. Thus in unfolding the foldable part of the structure and setting it up where a partition member such as 236 is employed,

procedure is followed in the case of the first form of construction described. In other words, in folding up the structure the foldable side wall sections are folded upon the foldable end wall sections, the foldable end wall sections are folded inwardly against the permanent side portions of the structure, the floor section is then folded upwardly over the outside of the folded end and side wall sections and then the roof section is folded downwardly over the outside of the bottom section. In this case, however, where thecentral panel 216 is pivoted to one of the foldable side wall sections it is, of course, and as illustrated in dotted lines in Fig. 14,

folded outwardly against the outer face of the corresponding side wall section 2i2 before the latter is folded inwardly against the outer face of the permanent side wall, and likewise where the foldable partition member such as 236 is employed it is folded inwardly against the fixedside wall portion 206 before the corresponding foldable end and side wall sections 2H! and M2 are folded into position. In unfolding the structure the above described operations are, of course, simply reversed.

In the modification illustrated in Figs, 14 to 25, inclusive, in order to hold the foldable floor and roof sections in folded position they are provided along each end margin thereof and preferably at one or more points along each of such end margins with a conventional type of bolt structure such as is indicated generally at 340 in Fig. 25 and thebolt 342 of which may be projected through anapertured plate 344 mounted on the inner face of the corresponding permanent end wall portion 204a and into an aligned opening provided in the portion 204a behind it, in a conventional manner.

Having thus described my invention, what I claim by Letters Patent is:

1. In a building structure, in combination, a non-collapsible portion comprising a floor, a roof and ends, and a foldable portion comprising a floor, a roof, a pair of end sections and a pair of side sections, said roof section comprising a unitary structure, hinge means along the inner edge of said roof section pivotally connecting it to said non-collapsible portion, hinge means connecting said fioor section along its inner edge to said non-collapsible poralong their inner edges to said non-collapsible portion, 'hinge mean connecting each of said.

side sections along a vertical edge thereof to the corresponding outer free edge of the corresponding of said end sections, flange means projecting downwardly adjacent the free margins of said roof section engaging said end wall sections and said side wall sections and forming stops against outward movement thereof, and floor supporting flange means projecting inwardly from said end and side sections and supporting said floor section at its margins, said floor section thus supported preventing inward movement of said end and side sections, each of said side sections being foldable against its corresponding said end section and being fold! fromits unfolded condition, the same general movement about one vertical edge thereof, a side wall mounted for pivotal movement on said end wall about the opposite vertical edge thereof, a

' metallic strip fixed to one of said walls on that side thereof opposite its pivotal connection with the other and extending into overlapping relationship with respect to the outer face of said other of said walls, and heat insulation materialmovement about one vertical edge thereof, a side wall mounted for pivotal movement on said end wall about the opposite vertical edge thereof, and a metallic strip fixed to one of said walls on that side thereof opposite its pivotal connection with the other and extending into overlapping relationship with respect to the outer face of said other of said walls, the normal spacing of said free edge of said strip with respect to the pivotal axis between said walls being less than the distance between the outer face of said other of said walls and said pivotal axis between said walls when said strip is in free and unstressed condition, whereby said free edge is caused to resiliently press against the outer face of said other of said members when said members are arranged in their unfolded condition.

4. In a building structure, in combination, a non-collapsible portion comprising a floor, a roof and ends, and a foldable portion comprising a floor, a roof, a pair of end sections and a pair of side sections, said roof section comprising a unitary structure, hinge means along the inner edge of said roof section pivotally connecting it to said non-collapsible portion, hinge means connecting said floor -section along its inner edge to said non- 4 0 collapsible portion, hinge means connecting said element interposed between said flanges and the 'tion, hinge means connecting said end sections able therewith into parallelism with a side of opposed marginsof said'fold'able floor section, each of said side sections being foldable against its corresponding said end section and being foldable therewith into parallelism with a side of.

said non-collapsible portion, and said roof section and said floor section being also foldable into parallel relationship with respect to a side of said non-collapsible portion.

5. In a building structure, in combination, a rigid portion comprising a floor, a roof and ends, and a foldable portion comprising a floor, a roof and a pair of end sections, said roof section cornprising a unitary structure, hinge means along the inner edge of said roof section pivotally connecting it to said rigid portion, hinge means connecting said fioor section along its inner edge to said rigid portion, and means pivotally mounting each of said foldable end sections on the corresponding end of said rigid portion for pivotal movement about a substantially vertical line and for shiftable movement in the plane thereof when in unfolded position, the last mentioned means comprising hinge mounting means shiftable about an approximately horizontalaxis and binge means having an approximately vertical axis carried thereby.

6. In a buildingstructure, in combination; a non-collapsible portion comprising afloor, a roof and ends, and a foldable portion comprising a floor, a roof and a pair of end sections, said roof section comprising a unitary structure, hinge means along the inner edge of said roof section pivotally connecting it to said non-collapsible portion, hinge means connecting said floor section along its inner edge to said non-collapsible portion, hinge means connecting said end sections along their inner edges to said non-collapsible portion, and means shiftably securing each of said last-mentioned hinge means to said noncollapsible portion for movement in the plane of the corresponding of said end sections when in unfolded condition, comprising a unitary support for said hinge means and means pivotally connecting said unitary support to said non-collapsible portion for bodily movement about an approximately horizontal axis.

7. In a building structure, in combination, a non-collapsible portion comprising a floor, a roof and ends, and a foldable portion comprising a floor, a roof and a wall projecting outwardly from the side of said non-collapsible portion between said floor and said roof, means connecting the floor of said foldable portion to said non-collapsible portion, means pivotally connecting said roof of said foldable structure to said non-collapsible portion, and means connecting said wall to said non-collapsible portion for pivotal movement about a substantially vertical line and for shiftable movement in the plane of said wall whenin unfolded condition, comprising a member disposed between said non-collapsible portion and the adjacent end of said wall, a hinge pivotally mounting said wall on said member, means mounting said member for pivotal movement about a substantially horizontal line, and means for locking said member in its pivotally adjusted position about said horizontal line. 7

8. A building structure, as defined inclaim 1, in which seal forming means is disposed between the roof section and the upper ends of said end wall and side wall sections.

9. A building structure, as defined inclaim 1, in which seal forming means is disposed between the floor section and the floor supporting flange means.

10. A building structure, as defined inclaim 1, in which seal forming means is disposed between the roof section and the upper ends of said end wall and side wall sections, and in which the seal forming means is also disposed between the floor section and the floor supporting flange means.

, FRANK M. SMITH.

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