US1726800A - Sole machine - Google Patents

Description

Sept. 3, 1929. F. E. BERTRAND 1,726,800.

SOLE MACHINE Filed March 22, 1926 Y 5 Sheets-Sheet 1 Fig.1,

1541 4 8 1, 5 1879a 58 F1 f in 195 Sept. 3, 1929. F, E BERTRAND 1,726,800

SOLE MACHINE Filed March 22, 1926 5 Sheets-Sheet 2 Fig.5. I

122 115 118 m/EA/ml Mag Sept 1929- F. E. BERTRAND SOLE MACHINE Filed March 22, 1926 5 Sheets-Sheet 3 p 1929. F. E. BERTRAND SOLE MACHINE Filed March 22, 1926 5 Sheets-Sheet 4 L JV Sept. 3, 1929. F. E. BERTRAND 1,726,300

' SOLE MACHINE Filed March 22, 1926 5 Sheets-Sheet 5 .F Figlo.

Fi U. 7 6

Patented Sept. 3, 1929.

I UNITED STATES mji'rnlw OFFICE.

FREDERIC E. BERTRAND, OI? LYNN, MASSAGHIISETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SOLE MACHINE.

Application filed March. 22, 1926. Serial No. 96,563.

' This invention relates to sole machines and more particularly to such machines employed in the manufacture of lipped insoles for shoes. As herein illustrated, the invention is embodied in a machine which, by a simple interchange of parts, is adapted for use both in pressing together the flaps of a channeled insole to form a stitch-receiving lip 0r rib and also for applying reinforcing fabric to one face and against the lip of a lipped insole. Usually an adhesive will be applied to the appropriate portions of the insole or fabric before they are presented to the machine for either of said operations. As already suggested, the machine when fitted for either of thesetwo operations may be changed over to adapt it for performing the other operation in a simple manner andin a relatively short time.

The object of the present invention is to improve the construction and mode of operation and to facilitate the adjustment of machines of the general type above described, to increase the durability of such machines and to reduce the time and attention required for maintaining them in successful and eflicient operation.

Accordingly, for the accomplishment of that and other objects, the present invention comprises certain novel combinations and arrangements of parts which will nowbe describedin detail in connection with theacco'mpanying drawings which illustratethe preferred embodiment of the invention with the parts needed for performing both operations above referred to and the invention will then be particularly pointed out in the appended claims.

In the drawings:

Fig. 1 is a front elevation partly in section of the machine as fitted for reinforcing in-,

soles, the lower portion of the machine being omitted; j

Fig. 2 is a plan View also partly in sectio with the right end portion of the machine omitted;

Fig. 3 is an end elevation, upon a larger scale, of the head of the machine, asmall portion of it being shown in section;

Fig. 4 is a perspective view of the head of the machine with the front section of'the head and the parts carried thereby removed;

Fig. 5 is a similar view of the principal operating parts of the machine with a portion of a sole shown in working position;

Fig. 6 is a front sectional elevation of the principal operating parts shown as acting upon an insole;

Figs. 7 and 8 show respectively in side and nd elevation a special form of the feed or 00 canvas roll;

Fig. 9 is an end elevation of the machine as fitted for the lip pressing operation, and

Fig. 10 is a sectional elevation, similar to Fig. 6, also showing the machine as fitted for lip pressing.

Referring particularly to Figs. 1 to 6, the work engaging tools include a pair offeed rolls 20, 22 and a work positioning orpressure roll 24 which functions also as a feed roll. These rolls may have the shapes and relative arrangement which are clearly shown in Fig. 6. Theroll 20 is shaped to engage the reinforcing fabric'or canvas R and press it progressively, lengthwise of the lip, into the angle formed between the body of the insole S and the lip formed by uniting the two flaps L, L, as will be further explained in connection with Figs. 9 and 10. Thelower feed roll 22 is shaped to engage the outer side of the lip L, L and also the feather F ofthe insole while thepressure roll 24 has the general shape of a double truncated cone and the bulging portion of this roll engages the unlipped surface of the 35 insole at a point substantially opposite the lip and substantially opposite the space betweentherolls 20, 22. Under usual conditions, these three rolls are positively driven to rotate at substantially the same peripheral speed but the relative speed'and the shapes of the rolls may be modified to suit diiferent kinds of work and different working conditions, as will be further explained. Theupper'feed roll 20 is formed on the end of a removable section of a horizontal shaft 26- rotatable but fixed longitudinally in bearings in acarrier 28 which has a limited rocking movement upon ashaft 30 which is located heightwise between the axes ofrolls 20 and 22 and is rotatable inbearings ofbrackets 31 extending inwardly from aremovable housing 32 forming the front sec-'- tion of the head of the machine. With this construction, theroll 20 in its movement toward and from theroll 22 travels approxithe rolls.

In order to provide for ready adjustment longitudinally and complete removal of theroll 20 and its section of the shaft, the latter is slotted, as indicated at 33 in Fig. 2, and ascrew 34 passes therethrough and through asplit spring collar 35 ,(see also Fig. 5) loosely surrounding the shaft and threaded to receive the lower end of the screw. By tightening the screw the collar may be clamped to the shaft, thus firmly holding it and its roll in the longitudinal position to which they have been adjusted by the operator. A joint 36 permits a slight. relative movement between the two sections of theshaft 26 while maintaining their driving connection.

As shown in Fig. 3 thecarrier 28 is provided with anextension 37 normally pressed against anadjustable stop 38 by aspring 40 the force of which may be adjustedbya screw 42. Thehousing 32 and also the corresponding housing at the rear of the machine, to be described, are constructed and mounted for ready removal from the machine so that the various parts may conveniently be inspected, adjusted or exchanged. To that end thehousing 32 is provided near its lower end with holes which have a sliding fit overstuds 44 to which the housing may be clamped in its proper position by set screws one of which is shown at 46.

Thefeed roll shaft 26 has secured to its rear end, as shown in Fig. 5, apinion 50 driven through anintermediate gear 52 by agear 54 secured to theshaft 30. Another gear 56 (Fig.

2) secured to theshaft 30 meshes with agear 58 fast to themain shaft 60 of the machine. At the front end of thisshaft 60 thefeed roll 22 is secured'by a screw '62 threaded into the reducedend 64 of the shaft. As shown in Fig. 6, this reduced portion of the shaft has also secured to it a canvas clearingwheel 68 withperipheral teeth 70, this wheel being spaced, however, from the rear face of thefeed roll 22 to permit the entrance of the canvas trimming knife, as will be later explained.

. Thepressure roll 24 is securely held in adjusted position at the upper end of itsvertical driving shaft 72 by expanding the hollow, split,upper end 74 of the shaft through the action of ascrew 76 threaded into the hollow end of the shaft and having aconical portion 78. Theshaft 72 is rotatable in acarrier 80 being driven by abevel gear 82, secured tothe shaft, which meshes'with agear 84 secured to ahorizontal shaft 86 which in turn carries agear 88 having relatively long teeth to mesh with agear 90 secured to theshaft 60. Theshaft 86 is carried by and longitudinally movable with a non-rotatable sleeve 92 forming a part of or rigidl-y secured to thecarrier 80. To this sleeve may be clamped ablock 93 from which extends laterally asteady pin 94 fitting ahole 96 in the frame of the machine. Thus, thecarrier 80 and the parts carried thereby may be adjusted both angularly about the axis of theshaft 86 and also longitudinally with respect to therolls 20, 22 and then securely held in adjusted position by tightening the clamping screw 98 and thus clamping theblock 93 to the sleeve 92. Accordingly, thepressure roll 24 is compelled to move in a straight line, generally perpendicular to the axis of the pressure roll, in its imovementtoward and from the other rolls and, therefore, it occupies the same vertical relation to theroll 22 in all of its positions and when operating on soles of diflercnt thicknesses. Moreover, when the screw 98; is loosened and the block 93-unclamped from the sleeve 92, the carrier can be adjusted angularly to vary the lead of theroll 24, i. e. its relation along the line of feed with respect to the other rolls, as is sometimes desirable under specific operating conditions. The tightening of screw 98 will secure theroll 24 in such adjusted position. As illustrated in Figs. 1 and 4, theblock 93 is provided with aslot 104 in which is slidable ablock 106 carried by an arm of alever 108 which is pivoted upon one of therods 44 already referred to. Aspring 110 is interposed between thehead 112 of themachine and'a lug 114 projecting downwardly from thelever 108. Anadjustable stop 116, passing through a forwardly extendingbracket 118 of thehead 112 in position to engage thelug 114, limits'the inward movement ofcarrier 80 and itsroll 24 under the influence ofspring 110. As shown in Figs. 1 and 3 thelever 108 has anarm 120 connected to a treadle (not shown) through arod 122,lever 124, andtreadle rod 126. By depressing the treadie rod thepressure roll 24 is moved in a straight line directly away from the feed rolls 20, 22. During this movement thecar rier 28 and thefeed roll 20 are lifted away from thelower feed roll 22 through connections including anadjustable screw 128 threaded intolever 108 and engaging avertical rod 130 sliding in a hole in thehead 112 of the machine'and engaging the lower side of thecarrier 28. By adjustingscrew 128 the precise timing of the movementsof thepressure roll 24 and thefeed roll 20 with relation both to each other and to thelower feed roll 22 can be varied as desired .and especially when feed rolls ofdiiferent sizes are substituted as, for example when changing the parts as required to adapt the machine to operate on soles for mens rather than womens shoes. Normally the adjustment will be such thatroll 20 will operatively engage the work slightly beforeroll 24 does in order to secure the best quality of work.

To facilitate placing the sole S initially with its lip L, L and the reinforcing fabric R in proper relation to the feed rolls and to maintain such relation throughout the operation of the machine thereon, several gages or guides are provided some or all of which may be utilized upon any particular kind of sole according to its special characteristics and otherv operating conditions. For example, different gages will often be employed for soles for meris', as compared with womens, shoes. As shown particularly in Fig. 4 there is provided in advance of the lower feed roll 22 a guide orguard 138 which is located to engage the sole in the vicinity of the outside angle of the lip. This guide is clamped in ablock 140 having a cylindrical stem 142 which may be adjustably clamped in the head of the machine by ascrew 144, theguide 138 being secured in adjusted position in theblock 140 by a set screw 1 46. g

For the purpose of maintaining the sole at the desired angle, for example with relation to the end face of the tool-20, as shown in Fig. 6, there is provided a.sole guide .148

l which may be clamped in ablock 150 by a set screw 152 (Fig. 4), the blockil50 being provided with arearwardly extending stem 154 which may be adjusted angularly and longitudinally and then clamped in adjusted position in the head .112 by aset screw 156.

. Anotherguide 160, shown for example in Fig.

' roll.

5, is mounted to bear upon the unlipped surface of the sole just in advance of the pressure This guide may be clamped in ablock 162 by aset screw 164 and has a dependingstem 166 which may be adjusted in thecarrier 80 and then clamped by aset screw 168. All three of these guides or gages are thus mounted for adjustment in three directions to meet varying operating conditions but it is to.

be understood that upon certain kinds of work, with different operators and under other operating conditions it may be unnecessary to make use of some of these adjustments and, indeed, in some cases equally good work can be done without using some of these guides at all and particularly. theguide 160. These guides also function to some extent as v guards to prevent the operators fingers or clothing from being drawn between the feed rolls.

As illu strated, the machine is provided with means for trimming the margin M of the canvas flush with the top of the lip L,-L or trimming both said margin and the lip, as shown in Fig. 6. The trimming means shown comprises a disc knife 17 4 which, as indicated in Fig. 2, is removably secured to the end of ahorizontal shaft 176 which is engaged by spring actuated plunger 17 8 to cause the outer face of the knife 17 4 to be pressed firmly against the inner face of thefeed roll 22. A movable guard 17 9 for the knife is fixed to a pin 172 (Fig. 4) which is slida'ble and rotatable in apart of ahousing 193 and whichmay be clamped in desired position by a setscrew 173.v The knife shaft 17 6 rotates in a rock shaft toward and from the axis of thefeed roll 22. Thelever 180 may be clamped in adjusted position by manipulating ascrew 184 which bears against a. slide 185 having asurface 186 complementary to a cylindrical surface of the fixedstud 181. By tightening thescrew 184 thelever 180 will be clamped firmly to thestud 181 and theknife 174 will be maintained in the desired overlapping relation to thefeed roll 22. Theknife shaft 176 is rotated at highspeed byconnections comprising gears 187, 188 and 189 (Fig. 3), the latter being mounted on a shaft 1.90 (Fig. 2) which is in line with thestud 181.Shaft 190 also carries a gear; 191 meshing with agear 192 on a clutch member 232 to be described.Shaft 190 is mounted in bearings projecting from ahousing 193 which is complementary to thehousing 32 referred to aboveand which like the latter is readily removable from the machine, being supported upon rods, one of which is shown at 194, and clamped in adjusted position by screws such as 196.

Inasmuch as the layer of canvas R is united to the sole by an adhesive which is in sticky condition while the sole 'is passing through the machine, it is desirable to supply oil to thefeed roll 20 and to thecanvas clearing wheel 68 to prevent the canvas from adhering to the machine parts. This oil may be suppliedfrom'a cup 198 to theroll 20 and to a feltpad 200 below the roll and in contact with the clearing wheel.

For conveniently sharpening the knife, a grinding wheel' 208 is so mounted that it may be readily moved from inoperative position shown in Fig. 4 into operative position where it engages the rear face of theknife 174, as shown in Fig. 3. The grinding wheel is mounted upon ashaft 210 which is freely rotatable in abearing 212 carried by abracket 214 having ahandle 216, the bracket being pivoted upon a,sh'aft 218 rotatable in thehousing 193. Aspring 220 surrounding theshaft 218 tends constantly to turn the grinding attachment into its inoperative position shown in- Fig. 4. It will be noted that the axis of thegrinding wheel 208 does not intersect the axis of theknife 174 and, because of the angular relation of these parts at the point or points of contact where the tangents to the circles of the wheel and knife are at an acute angle, the grinding wheel is caused to turn comparatively slowly'by reason of its engagement with theknife. As the grinding wheel is reduced in diameter by wear thebearing 212 and thewheel 208 may be adjusted ina direction perpendicular to the axis ofshaft 210 by means of an adjustingscrew 222 the head of which engages a slot in a longitudinally-movablenon-circular rod 224 which carries thebearing 212. 226 indicates a sheet metal guard for the grinding Wheel.

For driving themain shaft 60 and the parts connected therewith, there is provided a clutch member 230 (Fig. 1) which is keyed to theshaft 60 and which may be shifted into frictional engagement with a co-operating clutch member 232, freely rotatable but not movable longitudinally, uponshaft 60. Agear 236 upon the clutch member 232 is driven throughgears 238, 240, 242 and 244 from avertical shaft 246 in thecolumn 248 in the machine. Conveniently thisshaft 246 may be driven by an electric motor in the base of the machine. The engagement of the twoclutch members 230, 232 may be controlled in the usual manner through a spring and a treadle (not shown) which actuate atreadle rod 250, a lever 252 and ablock 254 slidable withmember 230 onshaft 60. It will be observed thatgear 192 and knife 17 4 are driven continuously at a high, uniform speed even when, through relative slip permitted between, or disengagement of,clutch members 230, 232, the feed rolls are driven at slow speed or are at rest. From the practical standpoint, this arrangement is advantageous because the cutting action of the knife is then equally effective whatever the rate of feed of the work, for example at the toe of the sole where that feed may be slow.

Supports for the soles before and after they are operated upon by the machine are shown at 260 and262. Ascraper 264 and achute 266 conduct the trimmed material to areceptacle 268.

Under usual conditions aroll 20 witha circular end face does entirely satisfactory work but the form ofroll 20 shown in Figs. 7 and 8 may be preferred because the acting edge 21 is polygonal with rounded corners and tends to force the canvas R more firmly into the angle of the lip; I

Figs. 9 and 10 illustrate the machine when equipped with substitute fittings adapting it, as above described, for; the operation of pressing together the two flaps L, L- preparatory to the application of .the reinforcing fabric. As is customary for this lip pressing operation, the surfaces of the flaps which are to be united are previously provided with an adhesive and are then consolidated into a unitary stitch receiving lip or rib as they are progressively turned up from the body of the insole and pressed to-' gether. For this purpose, instead of thehousing 193 carrying the canvas trimming knife .174, there is mountedin the machine a similar housing 193' suitable for the lip setting operation which requires no trimming mechanism and consequently no grinding attachment. Moreover, preferably the the sole opposite the feed rolls shown in Fig. 6 are replaced by cylindrical feed rolls 20, 22 and 24 of the shapes and sizes indicated in Fig. 10. Furthermore, theguides 138 and 148 are replaced byplows 138' and 148 which are inserted beneath the flaps lying initially close to the body 'of the sole as shown at the top of Fig. '10 and which progressively raise them toward each other for the action of the feed rolls 20, 22 which press the li s together to form'a unitary lip, as alrea y described.

As shown in Fig. 9, not only is aguide 160, similar to guide 160, provided on the entrance side of the feed rolls but acorresponding guide 160 is provided on their exit side.

Fig. 9 also best'illustrateshollow bosses 261 which are integral with and extend in-' wardly from the housings 32,193 and 193 and the ends of whichbear against acentral portion 263 of the machine frame and thus locate the housings in their proper position in the machine. The housings are further clamped in place by'bolts 265 threaded into saidportion 263 of the frame and by a connectinglink 267 pivoted tohousing 32 and held by aset screw 269 inhousing 193 or 193'. i

Having thus indicated the object and nature of the invention and having described in detail a machine embodying it, what I claim as new and desire to secure by Letters Patent is 1. A machine for operating on lipped soles having, in combination, a'pair of substantially'parallel, horizontal shafts, a pair of feed rolls to enga e opposite faces of the lip and being secure to the respective shafts, a ver tical shaft, a pressure roll to engage the unlipped face of the sole opposite the lip and being secured to said vertical shaft, a driver ing means for said shafts including a movable carrier for the vertical shaft, and means. for compellingmovement-of said carrier with relation to the pair of rolls to be in a straight line perpendicular to the axis of the vertical shaft.

2. A machine for operating on lipped soles having, in combination, a pair of rolls to engage opposite faces of the lip and being r0- tatable about substantially parallel axes, a pressure roll to enga e-the unlipped face of lip and being rotatable about an axis substantially perpendicular to said axes, guiding and supporting means for all of said rolls which permits the rolls of said pair to move relatively toward and from each other and compels any movement of the pressure roll toward or from the other rolls to be in a straight line perpendicular to the axis of the pressure roll,'and driving means ina movable carrier, a shaft in the carrier to which said pressure roll is secured, a sleeve connected to said carrier and constructed and arranged to slide rectilineally in said frame, means to maintain said sleeve and carrier in predetermined angular position in the frame, a shaft slidable with the sleeve and operatively connected to the carrier shaft, and means carried by the frame for driving said slidable shaft in its various positions.

4. A machine for operating on lipped soles having, in combination, a pair of rolls to engage opposite faces ofthe lip and being rotatable about substantially parallel axes, a pres sure roll to engage the unlipped face of the sole opposite the lip and being rotatable about an axis substantially perpendicular to said axes, and guiding and supporting means for all of said rolls which permits the rolls of said pair to move relatively toward and from each other but maintains the axes of said pair of rolls parallel in all positions thereof and compels the movement of the pressure roll toward and from the other rolls to be in a straight 5. A machine for operating on lipped soles having, in combination, a pair of feed rolls rotatable about parallel axes and adapted to engage opposite faces of the lip of a sole, a pressure roll to engage the unlipped face of the sole opposite the lip, and guiding and supporting means for said rolls which permits the rolls of said pair to move relatively toward and from each other but maintains their axes parallel in all positions thereof.

6. In a machine for operating on lipped soles, the combination of a pair of rolls to engage opposite faces of the lip, a pressure roll to engage the unlipped face of the sole, and guiding and supporting means for the rolls which permits movement of each of the three rolls relative to the others but maintains their axes always inthe same angular relation intheir different relative positions.

7. In a machine for operating on lipped soles, the combination-of a pair of rolls to engage opposite faces of the lip, a pressure roll to engage the unlipped face of the sole, guiding and supporting means for the rolls which maintains their axes always in the same-angular relation, means acting normally to press two of the rolls yieldingly toward the other roll, and means movable by the operator for moving said two rolls away from the other roll.

8; In a machine for operating on lipped soles, the combination of a plurality of rolls for supporting and feeding a lipped sole and sole positioning and gulding devices including a normally stationary guide constructed and arranged to engage the face of the sole at a substantial distance from and within the lip, and means by which the guide may be adjusted horizontally, vertically and angularly and then clamped in adjusted position.

9. A machine for operating on lipped soles having, in combination, a pair of rolls to engage opposite faces of the hp of a sole, a pressure roll having a bulging periphery to engage the unlipped face of the sole opposite the lip, and sole positioning and guiding devices including a normally stationary guide constructed and arranged to engage the li ped face of the sole at a substantial distance om and within the lip and to bend the sole over said bulging periphery, and means by which,

the guide may be adjusted horizontally, vertically and angularly and then clamped in adjusted position.

10. A machine for operating on lipped soles having, in combination, a pair of rolls to engage opposite faces of the lip, a pressure roll to engage the unlipped face of the sole oppositethe lip, and sole positioning and guiding devices including three guides normally stationary with relation to the respective rolls but capable of independent adjustment.

11. A machine for operating on lipped soles having, in combination, a pair of rolls to engage opposite faces of the lip, a pressure roll to engage the unlipped face of the sole opposite the lip, and means for supporting said pressure roll constructed and arranged to permit adjustment of said roll in the direction of the feed of the sole.

'12. A machine for operating on soles hav-.

ing, in combination, a pair of rolls to engage opposite faces of the work, means for rotating said rolls, a disc knife co-operating with one of said rolls, means for rotating the knife,

and means by which the axis of the knife may be adjusted transversely with relation tothe axis of the co-operating roll.

being secured to the respective shafts, a disc knife co-operating with one of said rolls, a

shaft to which said knife is secured and which is substantially parallel to the saidrhorizontal shafts, a movable support for said knife shaft, means by which said support may be adjusted to vary the distance between the axis of the knife and the axis of the co-operating roll,-

and means for driving all of said shafts.

14. A machine for operating on lipped soles having,.in combination, a pair of sub... a

stantially parallel, horizontal shafts, a. pair of feed rolls to engage opposite faces of the hp and being secured to the respective shafts, a

I the combination of sole feeding means, mechanism including a friction clutch through which said means. may be driven at variable speeds, a rotary knife for trimming material from the sole while the latter is being fed, and means for actuating said knife continuously at a uniform speed.

16. In a machine for operating on soles, the combination of a pair of feed rolls, a rotary knife for trimming material from a sole' while the latter is being fed, a clutch comprising a member constantly driven from a source of power and operatively connected to said knife and a cooperating driven member operatively connected to said feed rolls, and means through which said clutch members may be operatively connected and disconnected.

17. In a machine for operating on soles, the combination of sole feeding mechanism, a disc knife co-operating with an element of said mechanism to trim material from the sole, a rotatable grinding wheel constructed and arranged to operate upon-the marginal portion of said knife, and a support for the wheel movable toward and from the knife.

18. In a machine for operating on soles, the combination of sole feeding mechanism, a dlsc knife co-operating with an element of said mechanism" to trim material from the sole, and a freely rotatable grinding wheel constructed and arranged to operate'upon the marginal portion of said knife and bearmg such-relation to said lmife that the respect ve' tangents to the circles of the wheel and the knife at the point of contact are at an acute angle. 4

19. In a machine for operatin on soles, the combinatmn of a feed roll, a isc knife 00- operating with said roll to trim material from the sole, means for rotating the knife and the roll, means for yieldingly pressing the knife against the side ofthe roll, a grinding wheel, and means supporting the grinding wheel for movement into and out of engagement with the marginal portion of the knife so arranged that as it comes into engagement with the knlilfe it tends to press the knife against thero 20. In a machine for operating on soles, the combination of a pair of feed rolls, a disc knife co-operating with one of said rolls to trim material from the sole with a shear cut, means for rotating the knife and the roll so as to cause the knife to travel ata higher peripheral speed than the roll, means for yieldingly pressing the knife against the side of the roll, a grinding wheel freely rotatable about an axis which does not intersect the axis of the knife, means supporting the grinding wheel for movement into and out of engagement with the marginal portion of the knife so arranged that as it comes into engagement with the knife it tends to press the knife against the co-operating roll, and means by which the grinding wheel may be adjusted to shift the path of said movement to compensate for wear of the wheel and knife.

21. In a machine for operatingon insoles, the combination with a pair of substantially parallel horizontal shafts, of a vertical shaft, a plurality of sets of adjustable work guide supports, all of said shafts being constructed and arranged to receive interchangeably and drive different sets of feed rolls and said guide supports being constructed and arranged to receive interchangeably and hold in adjusted position corresponding sets of work guides and said different sets of rolls and guides being respectively shaped for operating on an insole to press together the flaps of a channeled insole to form a stitch receiving lip and to apply a reinforcing fabric to one face and against the lip of a hpped insole.

In testimony whereof I have signed my name to this specification FREDERIC E. BERTRAND.

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