US2934212A - Display and dispensing racks - Google Patents

Description

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April 26, 1960 April 26, 1960 J. J. JAcoBsoN DIsPLAY AND DIsPENsINc RAcxs Filed Dec. 16, 1957 4 Sheets-S'neet 2 FIG. 2

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laz- IN V EN TOR. Jmes J z/cosar? ATTORNEYS 'April 26, 1960 .1. J. JAcoBsoN 2,934,2l2

DISPLAY AND DISPENSING RACKS Filed Dec. 16, 1957 4 SheetS-Sheei 3 FIG. 6 FIG. |l

ATTORNEYS DESPLAY AND DISPENSING RACKS James J. Jacobson, New York, NY.

Application December 16, 1957, Serial No. 702,965

9 Claims. (Cl. 211-49) The present nvention relates to a package display and dispensing device.

According to the present nvention there is provided a novel display and dispensing device for packages or the like. The display and dispensing device is divided into a plurality of compartments, each of which is provided With spring actuated pusher means for advancing the packages therein so as to provide a package in frontmost position in the compartment at all times. Accordingly, no matter how many packages may be contained in each compartment, the display and dispensing device will appear fully loaded when viewed from the front, and a customer need only reach to the front of the compartment in order to remove a package therefrom.

According to another highly novel feature of the present invention, the aforementioned spring actuated pusher means exerts a constant force regardless of the elongation of the spring therein, and therefore independently of the number of packages in the compartment. Accordingly, even when relatively few packages remain in the compartment to cause comparatively little elongation of the spring, said pusher device nevertheless exerts suificient force, upon removal of the frontmost package, to advance the remaining packages with the same swiftness as when the compartment is fully loaded.

The pusher means according to the-present nvention is constructed so as to occupy a minimum amount of space in the compartment thus allowing maximum utilization of the available space thereof for displaying and dispensing the packages.

According to another highly novel feature of the present invention there is provided at the front of each compartment package retaining means which may be inwardly pivoted to permit convenient reloading of the compartment.

*It is therefore an object of the present nvention to provide a display and dispensing device wherein provision is made for maximum utilization of the available space thereof for displaying and dispensing the packages therein.

Another object is to provide a display and dispensing device having a plurality of compartments, each compartment being provided With spring actuated means for advancing the packages therein thus at all times providing a package in the frontmost position of the compartment.

A still further object of the present nvention is to provide package retaining means at the front of each compartment which may be inwardly pivoted to permit easy reloading of said compartment.

The above and other objects, features and advantages of the present nvention will be more fully understood from the following description considered in connection With the accompanying illustrative drawings.

Referring now to the drawings which illustrate the best mode presently contemplated of carrying out the nvention:

Fig. 1 is a front perspective view of a preferred form of the display and dispensing device according to the lnvention;

2,934,212 Patented Apr. 26, 1960 Fig. 4 is a fragmentary perspective view, on an enlarged scale, showing the manner of installing the pusher device of Fig. 3 in a compartment;

Fig. 5 is a vertical sectional view, lon an enlarged scale, on line S-S of Fig. 1;

Fig. 6 is a vertical section, on an enlarged scale, along line '6-6 of Fig. 2;

Fig. 7 is a perspective view of a preferred form 4of a pusher device;

Fig. 8 is a blank utilized in the making of the pusher device of Fig. 7;

Fig. 9 is a front perspective view of another form of the display and dispensing device according to the nvention;

Fig. 10 is a vertical sectional view, along 10-10 of Fig. 9; and

Fig. 11 is an enlarged view showing the manner of releasably securing the free end of the spring in the device of Fig. 9.

Referring now to Figs. 1 and 2, there is shown display and dispensingrack 10 comprisingshelves 12, -42 and 72 vertically spaced in setback relation.Lower shelf 12 comprises a plurality of transversely extending horizontally spacedwire rods 18 Secured at their front ends between horizontally extendingrods 20 and '22 and at their rear ends between horizontally extendingrods 24 and 26.Rear rods 24 and 26 are secured at their extremities to vertically extending support members 28 (only one of which is shown in Fig. 1). A plurality of horizontally spaced inverted U-shapedspacer members 30 are secured at their frontfree ends 32, to rods 20 and 22, respectively, and at theirfree ends 34 torod 24, thus providingshelf 12 with a plurality of transversely eX- tendng compartments.Spacer members 50 may be equally spaced (as shown) to provide compartments of equal size. However, it will be understood thatspacer members 30 may be disposed according to any desired.

arrangement to form compartments having desired sizes. Ahorizontal rod 36, vertically spaced fromrod 24 and coextensive therewith, is secured to the rear legs of spacer 'members 30. Securement of the above wire rod members may be by brazing or welding.

Shelf 42 is in all respects constructed in the same manner asShelf 12 and comprises a plurality of transversely extending horizontally spacedwire rods 48 secured at their front ends between horizontally extendingrods 50 and 52 and at their rear ends between horizontally extendingrods 54 and 56.Rear rods 54 and 56 are Secured at their extremities to vertically extendingsupport members 28. A plurality of horizontally spacedspacer members 60 are Secured at their free ends 62, and 64 to rods 50, 52 and 54, respectively, to provideshelf 42 With a plurality of transversely extending compartments.Horizontal rod 66, vertically spaced fromrod 54 and coextensive therewith, is Secured to the rear legs ofspacer members 60. It will be noted, however, thatrods 48 ofshelf 42 are shorter thanrods 18iof shelf 12 and, accordingly, the compartments inshelf 42 are shorter in depth than those inshelf 12.

Shelf '72 is in all respects constructed similarly toshelves 12 and 42 and comprises a plurality o-f transversely extending horizontally spacedwire rods 78 secured at their front'ends between horizontally extendingrods 80 and 82 and at their rear ends between horizontally extendingrods 84 and 86.Rear rods 84 and 86 are Secured at their extremities to vertically extendingsupport members 28. A plurality of horizontally spaced 3spacer members 90 are secured at their free ends 92 and 94 torods 00, 82 and 84,,respectively, to provideshelf 72 with a plurality of transversely extending compartments.Horizontal rod 96, vertically spacedfromy rod 84 and co-extensive therewith, is Secured to the rear legs ofspacer members 90. It will be noted, however, 'thatrods 78 ofshelf 72 are shorter thanrods 48 of shel-f 42 and, accordingly, the compartments inshelf 72 are shorter in depth than those inshelf 42. Inverted V- Shapedmembers 14 and 16, may be Secured to thespacer members 30, 60 and 90 at the left and right side ofdisplay device 10, respectively, for the carrying thereof.

Each compartment of display and dispensing device kis adapted to receive a plurality of packages to be displayed and dispensed thereby. Asbest seen in Fig. 2, no matter how many packages may be contained in a given compartment, the front package is always disposed at the frontmost part of the compartment, thus givingdevice 10 an appearance of being fully loaded (as long "as there is at least one package in each compartment) when viewed from the front. Consequently, it will be observed that to remove a package, the customer need not reach beyond the front end of the compartment. Toward this end, each compartment is provided With apusher device 100, the details of which will now be described with particular reference to Figs. 1-6.

As best shown in Fig. 3,pusher device 100 comprises a channel shapedlower part 102, the rear end of which has arecess 104 defined by upwardly extendingarms 106 and 108. Shaft 110 extends transversely ofarms 106 and 108 and is supported therein. A bushing V1-12is rotatably mounted onshaft 110 and aspring 114 is wound onto bushing 112.Spring 114 has a zero gradient or, expressed in another way, said spring exerts a constant force rrespective of the length of deflection. Essentially, a set is introduced inspring 114 giving it a ooncave-convex cross section. The force of the spring device results when the spring is unooiled and it is the section of the spring Which is'rin the process of being straightened out by being drawn off the coil but which has not yet been fully straightened which exerts the force. The portion of the spring remaining in the solid coil and the portion which has been pulled out exert no force. Thus it will be apparent that as the spring is extended or contracted, constantly changing sequential increments of the spring act to exert the spring force. And if all the increments of the spring have been given the same set, it will be apparentv that, rrespective of the amount which spring 114 is extended, it will exert the same pulling force. Such springs are well known in the art and further description thereof is not deemed to be necessary.

An L-shapedbracket 116 has its horizontal leg 118 welded or brazed on the upper surface ofchannel 102, centrally thereof, and atop disc 122 is welded onto the front surface ofbracket leg 120, in the upper region thereof, for transmitting the spring force to the packages causing advancement thereof. As has been stated earlier, each compartment is provided with apusher device 100. To insert thepusher device 100 in a compartment, two adjacent transversely extending rods, as forexample Wire rods 18 in a compartment oflower shelf 12, are brought toward each other (Pig. 4) while the pusher is snapped down thus causingchannel part 102 to engage said wires. Obviously, thewire rods 18 nearest the center of the compartment should be selected.Spring 114 is unwound from belowbushing 112 and said unwouud portion is extended longitudinally of the compartrnent and looped abouthorizontal rod 22. Whenpusher 100 is so mounted on saidrods 18, it is apparent that said pusher is free to slide along the entire length of the compartment under the action ofspring 114.

As shown in Figs. 1 and 3, and for reasons to be hereinafter set forth, each compartment is provided at the front thereof withagate 124 comprisinga metal. plate I 4 and having laterally extendingportions 125 and 127. Said gate is pivotally mounted on horizontally extending rod 20 (as in the case of lower shelf 12) by means of a downwardly extending hinge member provided near each end of said gate for engagement withrod 20. It Will be apparent that the gates v124- provided in the compartments ofshelf 42 are pivotally mounted onhorizontal rod 50, and thegates 124 of the compartments inupper shelf 72 are pivotally mounted onhorizontal rod 80.

The free end ofspring 114, as stated before, is unwound belowbushing 112 and looped aroundhorizontal rod 22, curved inwardly and upwardly therefrom and then engages the rear surface ofgate 124, as best shown in Fig. 5. Withspring 114engaging gate 124 as heretofore described, said gate is biased outwardly and occupies a normally vertical position as shown by the full lines'in Pig. 5, laterally extendingportions 125 and 127 engaging spacers 30 (Fig. 1) to limit movement ofgate 124. However, when a force is applied to the gate tending to push it rearwardly, said gate will rotate aboutrod 20 and the gate and spring will assume the position ind-icated by the dashed lines in Fig. 5. In the normal position thereof,gate 124 acts as a package retaining means at the front end of the compartment (Fig. 2). The front surface ofgate 124 may contain printed matter in the nature of advertisement or identification of the contents of the compartment.

Referring to Figs. 1 and 2, it will be seen that in each compartment, the pusher may be pushed to the rear of the compartment against the action ofspring 114, rearhorizontal rods 24 and 26 (in the case of lower shelf 12) acting as a stop and limiting the rearward movement ofpusher 100. A plurality of packages may now be inserted in the compartment betweentop disc 122 andgate 124. As the front package is removed, it is apparent thatpusher 100 Will advance all the remaining packages in the compartment and consequently a new package will occupy the front of the compartment immediately behindgate 124. It will be noted that due to the zero gradient ofspring 114 as explained before, even when there are only a few packages remaining in the compartment and the spring has consequently comparatively little deflection, the force exerted by said spring does not decrease, but instead remains constant, so as to advance the contents of the compartment to the front thereof whenever one of the packages is removed, no matter how few may remain in the compartment.

It is noted that in order to move thepusher 100 rearwardly, pressure must be applied thereto in the lower region thereof, such as for example the lower partl20 ofbracket 116. Application of force to the upper part ofpusher 100, such as totop disc 122 for example, Would Lcause a bending action tending to produce a rotational action betweenchannel part 102 androds 18 rather than the necessary sliding action. The purpose ofgate 124 is to permit loading of a compartment in a simple and convenient manner. Referring specifically to Pig. 2 (top Shelf 72) it will be noted that loading or reloading may be effectuated by merely placing the packages to be inserted inline immediately in front ofgate 124. Pressure may now be applied to the lower portion of the packages to 'be inseited causing the gate to pivot about rod 00 and assume the horizontal position shown by the dashed lines in Fig. 5. Due to the action of the gate, the pressure is transmitted to the lower part of thepusher 100, causing rearward movement thereof, and the added packages may slide past the gate at which time the gate will once more assume the full line position of Fig. 5. It is apparent that Were it not for the pivotal feature ofgate 124 it would be relatively difiicult to transmit a force through the packages at a sufiiciently low point to enable rearward movement of thepusher 100. v

With reference to'Fig. 2, it will also be observed that each compartment may be used in nearly its entire longi- .tudinal extent for the purpose of holding the packages,

the only usable space of the compartment occupied by thepusher 100 being defin'ed by the relatively small distance between the front surface oftop disc 122 and therearmost edge 128 ofpusher 100. In connection with the above, it will be noted that the rearmost package is supported by the portion ofchannel part 102 which extends forwardly ofbracket 116, and said package is therefore disposed at a slightly higher level than the other packages.

Referring now to Figs. 7 and 8, there is shown a preferred embodment of apusher device 130 of greatly simplified construction and comprising a T-shapedupright member 132 having rearwardly extendingears 134, 136 formed integrally therewith and each provided with an opening for supportingshaft 138 extending transversely thereof. A bushing 140 is rotatably mounted onshaft 138 and aspring 142 is wound onto said bushing.Channel part 144 extends forwardly of the lower edge ofupright 132 and is formed integrally therewith.Pusher device 130 may be formed by a single cut-out blank 146 as seen in Fig. 8.Pusher 130 functions in all respects .in the same manner aspusher 100, previously described in connection with Fig. 3. It will be noted, however, thatpusher 130 occupies even less usable compartment space Vversely extending horizontally spacedwire rods 166 are Secured, at their extremities, as by brazing or welding, betweenframe members 154 and 156.Wire rods 168 and 170 extend horizontally for the entire length ofshelf 152, at the rear thereof, and are Secured at their left extremities to' rear leg ofside portion 158 and at their right to rear leg of side portion 160'of frame member 156.Wire rod 172 extends horizontally for the entire length ofshelf 152, at the front thereof, and is secured to the front legs ofside portions 158 and 160, respectively, of frame member 156. Horizontally spacedspacer members 174divide shelf 152 into a plurality of compartments and are secured at their rear ends torod 168 and at their front ends torod 172.

Upper shelf 182 is similar tolower shelf 152 and comprises rectangularWire frame member 184 andwire frame member 186 having generally invertedU-shaped side portions 188, 190 andstraight portions 192 and 194 -extending transversely of said side portions at the front .and rear, respectively, ofshelf 182. A plurality of trans- .versely extending horizontally spacedwire rods 1% are VSecured at their extremities, as by brazing or welding,

betweenframe members 184 and 186.Wire rods 198 and 200 extend horizontally for the entire length ofshelf 182, at the rear thereof, and are Secured at their left -extremities to rear leg ofside portion 188 and at their Vright extremities to rear leg ofside portion 190 offrame member 186.Wire rod 202 extends horizontally for the :entire length. ofshelf 182, of the front thereof, and is secured to the front legs ofside portions 188 and 190, respectively, offrame member 186. Horizontally spacedspacer members 204divide shelf 182 into a plurality of compartments and are Secured at their rear ends torod 198 and at their front ends torod 202.

Vertical support members 206-206 are provided for supportingshelves 152 and 182, each comprising abase portion 208 and upwardly eXtendingrear leg 210 and 'front leg 2172, said legs being secured, as by welding or brazing, to the respective side portions of frame members A154, 156,' 184, 186. It will be noted, however, that display and dispensingdevice 150 is supported onbase portions 208 which are disposed at a slight angle toshelves 1152 and 182, thus giving the latter a slight downward inclination from front to rear, as best seen in Fig. 10.

Each compartment is provided with apusher 100, in the same manner as has been previously described. It Will be noted, however, that unlike the dispensingdevice 10, no gates are provided in dispensingdevice 150 and, accordingly, the free end ofspring 114, as it is unwound belowbushing 112, is merely securely wrapped around the horizontal portion ofwire frame member 154, as best seen in Figs. 10 and 11. The free end ofspring 114 is bent as at and 117, and at the latter bend the spring is biased downwardly to prevent accidental disengagement ofspring 114 fromframe member 154 as best shown by the full lines in Fig. 9; the dashed lines in said figure showing the manner of disengagingspring 114 frommember 154.

At the front of each shelf there may be provided a strip 165 (as on lower shelf 152) extending betweenrod 172 and the horizontal portion offrame member 154, and secured at its ends to spacer 174 and frame member 156, respectively, and which may contain printed matter in the nature of advertisement or identification of the contents of the respective compartments.

A vertical eXtending inverted U-shaped member 21'4 extends upwardly oflegs 210 and is Secured thereto, thus forming a handle for conveniently carryingdispensing device 150. Arod 218 extends transversely oflegs 215 and 216 and is Secured thereto. Astrip 220 is attached to the upper part ofmember 214 and may contain printed matter in the nature of advertisement.

It is thus seen that display and dispensingdevice 150 is provided with a plurality of compartments, each of which is provided with a pusher device 100 (Fig. 3) or (Fig. 9). By moving the pusher device rearwardly a plurality of packages may be inserted in each compartment. As the frontmost package is removed from the compartment, the pusher will cause the remaining packages to move forwardly and a new package Will occupy the frontmost position in the compartment. It is therefore apparent that as long as there remains at least one package in each compartment, there will be a package occupying the frontmost position in each compartment and the dispensing device Will thus appear to be fully loaded when viewed from the front.

The slight downward inclination of each compartment causes the packages therein to have a slight rearward inclination as best shown in Fig. 10. Such inclination has been found to be very desirable in that it provides the display device with a generally more attractive appearance, causng it to be more readily noticeable to incidental observers. Furthermore, said slight rearward inclination of the packages facilitates removal thereof.

While I have shown and described the preferred embodiments of my invention, it will be undcrstood that various changes may be made in the present invention without departing from the underlying idea or principles of the invention within the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A display and dispensing assembly for packages comprising, a plurality of compartments each having spaced transversely extending flexible wire rods formiing the package supporting surface thereof, at least some of said compartments being provided with removably mounted spring actuated means having a lower open channel part for slidingly engaging two of said rods in each of some of said compartments, the removal of said spring actuated means being elfectuated by moving said two rods toward each other to thereby free said open channel part from said sliding engagement With said two rods said means rotatably mounting in the rear portion thereof a zero gradient springhaving an unwound portion extending below-saidchanneLpart, the end of said portion -2,934,2 Elk-2 Ibeing Secured at the front end vof said compartment surface of said channel part and extending upwardly thereof for transmitting the spring force to the contents of said compartment causing said contents to occupy the frontmost part thereof.

2. A display and dispensing assembly for packages comprising, a plurality of compartments each having spaced transversely extending flexible Wire rods forming the package supporting surface thereof, said surface having a slight downward inclination from front to rear, at least some of said compartments being provided With removably mounted spring actuated means having a lower open channel part for slidingly engaging two of said rods in each of some of said compartments, the removal of said spring actuated means being elfectuated by moving said two rods toward each other to thereby free said open channel part from said sliding engagement with said two rods said means rotatably mounting in the rear portion thereof a bushing, a zero gradient spring wound onto said bushing and having an unwound portion extending below said channel part, the end of said portion being secured at the front end of said compartment whereby said means are movable along the longitudinal extent of the compartment, a bracket Secured to the upper surface of said channel part and extending upwardly thereof for transmitting the spring force to the contents of said compartment causing said contents to occupy the frontmost part thereof.

3. A display and dispensing assembly for packages comprising, a plurality of compartments each having spaced transversely extending wire rods forming the package supporting surface thereof, at least some of said compartments being provided With spring actuated means having a lower channel part for slidingly engaging two of said rods in each of some of said compartments, said channel part having an upwardly extending force transtnitting part integrally formed therewith at the rear thereof, said latter part having horizontally spaced rearwardly extending ears formed integrally With said part and mounting therebetween a bushing, a zero gradient spring wound onto said bushing and having an unwound portion extending below said channel part, the free end of said portion being releasably Secured at the front end of said compartment whereby said spring actuated means may be moved along the longitudinal extent of said compartment for inserting packages therein and maintaining said packages in the frontmost part of the compartment.

4. A display and dispensing assembly for packages comprising, a plurality of horizontally spaced transversely extending wire rods forming the package supporting surface thereof, said wire rods being Secured at their front ends between horizontally extending front upper and lower members and at their rear ends 'between horizontally exv tendiug rear upper and lower members, a plurality of horizontally spaced spacer members Secured to said front and rear horizontally extending members to divide said assembly into a plurality of horizontally spaced compartments, at least one of said compartments being provided with spring actuated means having a lower channel part for slidingly engaging two of said rods in said compartment, said channel part rotatably mounting in the rear portion thereof a bushing, a zero gardient spring wound onto said bushing and having a free end releasably secured to said horizontally extending front lower member, the portion of said spring between said latter member and said bushing extending longitudinally of the compartinent below said channel part and between said two rods, said channel part mounting an upwardly extending member for engaging the rear surface of the contents of said compartment and for transmitting the spring force thereto thus causing said contents to occupy the frontmost part of said compartment.

5. A display and dispensing assembly for packages comprising, a plurality of horizontally spaced transversely extending wire rods forming the package supporting surface thereof, said wire rods being secured at their front ends between horizontally extending front upper and lower members and at their rear ends between horizontally extending rear upper and lower members, a plurality of horizontally spaced spacer members secured to said front and rear horizontally extendng members to divide said assembly into a plurality of horizontally spaced compartments, at least one of said compartments being provided With spring actuated means having a lower channel part for slidingly' engaging two of said rods in said compartment, said channel part rotatably mounting in the rear portion thereof a bushing, a zero gradient spring wound onto said bushing and having an unwound portion extending forwardly and longitudinally of the compartment below said channel part and between said two rods, said unwound portion being turned upwardly and inwardly upon itself about said horizontally extending front lower member, said inturned portion being biased against the spring part adjacent thereto for releasably securing said spring at the front of the compartment, said channel part mounting an upwardly extending member for engaging the rear surface of the contents of said compartment and for transmitting the spring force thereto thus causing said contents to occupy the frontmost part of said compartment.

6. In a display and dispensing assembly having a plurality of compartments each having spaced transversely extending wire rods forming the package supporting surface thereof, spring actuated means slidingly engaging and removably Secured to a plurality of said rods for maintaining the contents of at least one of said compartments in the frontmost part thereof, said compartment having package retaining means comprising a pivtotally mounted gate at the front part thereof, said spring having a free end engaging said gate for the normal biasing thereof in a vertical position whereby to retain said packages in said compartment, said gate being inwardly pivotable against the action of said spring from said normal position'to a horizontal position to permit loading of said compartment from the front part thereof, said pivotal movement occurring during the loading of said compartment by the engagement of an article With said gate.

7. In a display and dispensing assembly having a plurality of compartments each having spaced transversely extending wire rods forming the package supporting surface thereof, spring actuated means having a lower channel part for slidingly engaging two of said rods in at least one of said compartments, said means rotatably mounting in the rear portion thereof a bushing, said compartment having package reta'ining means comprising a pivotally mounted gate at the front part thereof, a zero gradient spring wound onto said bushing and having the unwound portion thereof extendingV below said channel means longitudinally Vof said compartment, the end of said unwoundvportion engaging said gate for the normal biasing thereof in a vertical position whereby to retain said packages in said compartment, said gate being inwardly pivotable against the action of said spring from said normal position to a horizontal position to permit loading of said compartment from the front part thereof. i

8. A display and dispensing assembly for packages comprising, a plurality of horizontally spacedtransversely extending wire rods forming the package supporting surface thereof, said wire rods being Secured at their front ends between horizontally extending front upper and lower members and at their rear endsbetween horizontally extending rear upper and lower members, a plurality of horizontally spaced spacer members secured to said front and rear members to divide .said assembly into a plurality of horizontally spaced compartments, each of said compartments having package retaining means at the front part thereof comprising a gate pivotally mounted on said horizontally extending front upper member, spring actuated means having a lower channel part for slidingly engaging two of said rods in at least one of said compartments, said spring actuated means rotatably mounting in the rear portion thereof a bushing, a zero gradient spring wound onto said bushing and having the unwound portion thereof extending below said channel means longitudinally of said compartment and turned inwardly upon itself about said horizontally extending front lower member, the end part of said unwound portion engaging said gate for the normal biasing thereof in a vertical position whereby to retain said packages in said compartment, said gate being inwardly pivotable against the action of said spring from said normal position to a horizontal position to permit loading of said compartment from the front part thereof, said spring actuated means being movable along the longitudinal extent of said compartrnent and being operative to maintain the contents therein in the frontmost part thereof.

9. A display and dispensing assembly for packages comprising, a plurality of compartments each having spaced transversely extending flexible wire rods forming References Cited in the file of this patent UNITED STATES PATENTS 1,532,865 Beck Apr. 7, 1925 1,706,298 Jelks Mar. 19, 1929 2,l10,299 Hinkle Mar. 8, 1938 2,111,496 Scriba Mar. 15, 1938 2,207,115 Carr .i July 9, 1940 2,225,991 Hobson Dec. 24, 1940 2,273,644 Hope Feb. 17, 1942 2,298,884 Hope Oct. 13, 1942 2,317,044 Faulkner Apr. 20, 1943 2,738,881 Michel Mar. 20, 1956

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