US 2575300 A
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J. SCHRAGER VENDING MACHINE Nov. 13, 1951 3 Sheets-Sheet 1 Filed June 30, 1949 JOSEPH SCHRAGEIR INVENTOR.
J. SCHRAGER VENDING MACHINE Nov. 13, 1951 s Sheet-Sheet 2 Filed June 50, 1949 FIG 2 FIG 5 JOSEPH SCHRAGER INVENTOR.
ATTORNEY FIG 4 J. SCHRAGER VENDING MACHINE Nov. 13, 1951 vfllllllllllllllll 34 JOSEPH SCHRAGER INVENTOR.
ATTORNEY Patented Nov. '13, 1951 UNITED STATES A 'I ENT OFFICE VENDING MACHINE Joseph 'Schrager, Miami, Fla:
Application June 30, 1949; Serial' No;:102,2,90
1 This invention relates to improvements in coin controlled and manually actuated dispensing devices and has-particular reference to such a de vice primarily adapted to progressively dispense commodities, such as food prepared in removable containers.
It is an object of the invention to provide a device having a combined closure andsight door normally held closed by coin actuated release mechanism and manually actuated to open position upon release of the coin actuated mechanism to permit manual removal of the tray, dish or,
the like containing the article to be dispensed and upon removal of the article and a release of the door, permitting the door to automatically move to closure and latched position.
A further object of the invention resides in a. novel form of conveying devices for thearticlesto be dispensed, whereby they are; progressively movedto dispensing position automaticallyby gravity and whereby the conveying devices .are automatically moved from dispensing position and returned to a point of loading when the access door is moved to closed position, which action permits another conveying device to automaticalsequent release.
Another object of the invention resides in auto-, matically actuable baffle means to be positioned between a loaded conveying device in dispensing position and a follow-up loaded conveyingdevice,
when the closure door is released andactuated to open position, thus preventingaccessto the follow-up device at all times when the-door is opened.
Further important objects reside in novel control means for the conveying devices actuable-by the closure door in both the open and closed position, the novel form of conveying devices and invention and wherein like characters of refer-. ence have been employed to designate like parts throughout.
In the drawings:
Figure 1 is a central vertical longitudinal sectional view of the device, taken on line ll of Figure 5,
Figure 2 is a transverse vertical section taken on .line 2-2 of Figure 1, looking in the direction of. the arrows,
Figure 3 is a fragmentary horizontal section .25" ly move to the dispensing position for a subillustratinga conveying device and its supporting trackways, taken on line 3;3 of Figure 1,
Figure 4 is a fragmentary horizontal section illustratinga bafiie and its actuatingmeans, taken on line 4'4 of. Figure 1,
Figure 5 isa front elevation of .the complete device,
Figure.6. is a fragmentary vertical section taken" on line 66'of. Figure -1,
Figure 7 is. a similar view taken on line '|-''l of Figure 1,
Figure 8 is a similar view. taken on line 8-i'8 of Figure 1,.
FigureQ is an enlarged centrallvertical section taken on line 99' of Figure 2, illustratingthe initialstop position of a conveyor device,
Figure 10 is a horizontal sectionmtaken on line lil1 l-01.of Figure-9, looking in the direction of the arrows,
' Figure 11 isa view similar to Figure 9 with the parts retracted to release-the conveyor device for its'return travel, and
Figure 12 is a fragmentary perspective viewof the conveyor devicerelease means.
Referring specificallyto the drawings, the nu meralidesignates a-casingas awhole, of gen-- erally rectangular shape, having parallel side walls 6 and a -front closure wall I.
top and bottom walls may be employed whenthe;
device is to be used asasingle vending machine.
The present embodiment of the invention has been designed primarily for the dispensing of foods or the like and,since a plurality of the devices willbe employed, the rear wall-has been 1 dispensed with to permit access by an attendant.
for the loading-and replacement of the conveyor devices.
cent the side walls 6. A closure door 9, having a sight opening l0, covered by a transparent sheet H, is movable in a vertical plane for covering and uncovering the opening 8; The sheet I l provides means whereby 'an operator may view the food or other article that is supported in dispensing position.
Thedoor 9 issecurely held inclosedv position by a solenoid latch 12, engaging in a keeper 13,, carried by, the upperv edge of the door 9. The solenoid latch isrigidly supported on a horizontal nism,=to be described, and to provide atable-like structure to facilitate-theremoval.of thefood, etc.- The door .9 preferably travels in channel,
Since it is contemplated that the :device is-to be employed in groups, arranged side by side or in superime. posed. relation, the top and bottom has been:
The frontwall l .isprovided with arectangular access opening 8, terminating adja- 3 guides l6, and normally rests upon the flange |5 in closure position. A limit switch, not shown, is actuated when door 9 is closed so as to throw solenoid l2 forward and thus lock door 9.
It is contemplated, that the article to be dispensed shall be conveyed from the rear or loading position, to a point of stop or dispensing position by gravity and to accomplish this feeding;
means, upper and lower inclined tracks I! and I8 are secured to the side walls 6 and incline downwardly toward the front of the casing. As clearly shown in Figures 6 and 7, the tracks are of unequal width, with the lower track l8 being wider than the upper track Conveyor carriages 9, of generally square or rectangular shape in top plan, are adapted to traverse the tracks IT and H3. The carriages l9 have an upper flat surface for the reception of a dish, box or other receptacle, shown by dotted lines in Figure l.
Flanged wheels 23 and 2|, support the carriages I9 for traverse on the tracks I1 and I8 jointly, with the wheels 29 and 2| simultaneously engaging their respective tracks for maintaining the carriages |9 level throughout their travel upon the tracks to the point of dispensing stop. Said front wheels 29 are further apart than rear wheels 2|, as shown in Figure 3. Since the carriages are usually loaded at a remote point and then placed upon the tracks, cams 22 and 23 are rigidly fixed adjacent the loading end of the casing to facilitate the engagement of the wheels with their respective tracks. As clearly shown in Figure 1, the track terminates adjacent a trip mechanism, designated as a whole in Figure 1, by the numeral 24, as shown in detail in Figures 9, l0 and 11, while the track l8 terminates short of the track I! a distance sufficient to permit a simultaneous clearance of the wheels 2|] and 2| from their tracks for a shifting of the carriage to a pair of return inclined tracks 25 and 26. The tracks 25 and 26 correspond to the tracks I! and I8, but in this instance, the track 26 is above the track 25. The inner ends of the tracks 25 and 26 are curved upwardly, as at 21 and 28, serving to direct the wheels 20 and 2| to their particular track. The inclination of the tracks 25 and 26 is toward the rear of the casing so as to direct an unloaded carriage to a point for removal and reloading.
Each carriage is provided with a pair of forwardly directed hook devices 29, spaced apart and having their hook ends 39 directed in axial alignment. The hook devices 29 coact with the trip mechanism 24 in a manner now to be described.
The trip mechanism 24 comprises a central plate 3|, having vertically shiftable contact with the inner side of the front wall 1 and positioned centrally of the device. A bracket 32 provides a guide for the plate 3|, with the bracket being rigidly fixed to the wall 1. The upper end of the plate 3| is provided with oppositely extending horizontal flanges 33, terminating adjacent the side walls -6, while the lower extremity of the plate 3| is provided with oppositely extending horizontal flanges 34 co-extensive with the flanges 33. A retractile spring 35 has connection at its lower end to the flanges 34, while its upper end is connected to the bracket 32. The spring 35 normally tends to shift the plate 3| upwardly. The plate 3| is bent rearwardly to form a shelf-like section 36, lying in the same plane as the flanges 33.
The plate 3| is then bent downwardly at a right angle, forming a vertical wall 31. The terminal end of the plate is then rolled inwardly and upwardly. as at 38, forming a spaced wall that terminates short of the plate 36. The opposite ends of the rolled portion are notched at 310. on its forward face to a depth substantially half the rolled portion and having a length sufiicient to permit clearance of the hooked devices 39, in a manner presently to be described. The wall 31 forms an abutment against which the hooked devices 3B normally rest as a limit means for the forward travel of the carriage to dispensing position, as shown by the solid line position of Figure 9. The wall 38 serves as a stop to limit the initial tripping of the carriage on the opening of door 9 to insure that the carriage will be held against shifting to the lower return tracks while the closure door 9 remains open, as shown by the dotted line position of Figures 9 and 10.
The door 9 carries depending legs 39, parallel to the side walls 6. The lower ends of the legs 39 are bent inwardly to form foot portions 49, adapted to contact the lower flanges 34, when the door is in the closed position and to contact the flanges 33, when the door is moved to the open position. The foot portions 40 shift the plate 3| and its associated parts either upward or downward at the extreme movement of the door in either direction by its contact with flanges 33 and 34 for the purpose to be described.
Means are provided to shift a bafiie plate across the path of movement and between two adjacent and abutting carriages for preventing access to the carriage next adjacent the carriage that is in dispensing position, comprising a vertically movable plate 4|, operable in guide channels 42, fixed to the side walls 6. The plate is moved in a vertical plane by a pair of bars 43, located adjacent the side walls 5 on each side. The bars slidably engage in suitable openings formed adjacent the lower corners of the plate 4| and fulcrum intermediate their length between a pair of rollers 44. The forward ends of the bars are pivotally connected at 45 to the lower corners of the door frame 9. Therefore, movement of the door to open position, causes the bars to fulcrum over the rollers 44 for moving the bafiie plate 4| downwardly. The bafile plate 4| is positively moved in either direction by the movement of the door 9.
The solenoid latch device I2 is actuated by any conventional coin controlled electrical switch, generally indicated at 45 and connected to the solenoid by electrical conductors 41. A limit switch, not shown, serves to return the solenoid to locked position, as explained above.
In the operation of the device, an attendant loads the machine from the rear by positioning a plurality of carriages upon the inclined tracks I! and I8, cams 22 and 23 acting as guides. Normally, the article to be dispensed is first placed on the carriage and the carriage then engaged with the tracks. This loading is continued until the tracks I! and I8 are fully loaded. The first carriage has been stopped in its forward movement by the abutment of the hooked devices 30 with the rear wall 31 of the trip device 24, as best seen in the solid line position of Figure 9. The following carriages abut one another, as seen in Figure 1.
The operator, customer, having viewed the article through the transparent plate proceeds to insert a suitable coin in the coin device 46 causing the solenoid latch to be tripped and the door 9 released, at which time the door may be manually elevated by the operator to its uppermost position for removal of the article supported on the carriage l9. As the door 9 moves to open position; the bafiie plate -41 movesdownwardly'toprevent access :to -.the\ next adjacent carriage. The wall l4 likewise prevents aperson from reaching over the baflle plate 4 i;
As soon-as door 9 'isunlocked, spring .35 acts to-lift plate 31 to a point where it abuts the underside of flange l5. When thedoor has. been moved to its uppermost limit, the foot portions 48 have-engaged the flanges 33, lifting the plate.
3| to. a point Where it abuts. the underside of the flange It as a-safety in case spring 35 fails to work. At this-point,the notches 3lahave been moved upwardlyva'distancevto permit "the hooks 30 passing therethrough for: abutment with the wallet, as indicated in dotted lines in Figure.
9. Spring 351holds plate3l :up during the entire time'door 9 is being moved, until door 9 is closed and looked as explained below. This is theinitial trip. motion forthe carriage and, as shown, the carriage has moved forward a distance equal to the distance the hooks Silhavetravelled from the wall 3'! to the wall 38, which distance has positioned the wheels 26 and 2| at the terminal endsof the tracks H andl8. After the article has been removed from .the carriage by the operator, the door is released and falls by gravity to its lower or closed position, raises the baflle plated! for providing clearance to permit shifting of the next adjacent carriage as the dispensing carriagemoves forward.
At the fully closed and latched position of the door 9, the foot portions 4!) bear against the flanges 34, pressing the plate 3! downwardly against the tension of the spring 35 and thus moving the trip 24 to its original position. As the trip 24 moves downwardly, the wall section 38clears the hooks. 3B, permitting the carriage to roll forward, its wheels and 2! simultaneously droppingoifofupper tracks IT and I8. and striking the curved ends 21 and 28 and dropping to the lower tracks and 26, at which time the carriage rolls by gravity to the loading or rear end of .the machine. Thus, the .entire shifting and control of the carriages-isv under the influence of the closure door 9. The carriage will beheld against release by 'wall 38 until'the door is fully closed and latched, when wall 38 clears hooks 30, thus preventing apartial clos-.-
ing of the door in order to release av carriage and permit another loaded one to moveiforward.
Carriages is are at all times level platforms and yet due to the angle of the tracks I! and I3 will roll down in themachine by gravity and returns by gravity on tracks 25 and 26. At the same time the outer flanges of the wheels 20 and 2! are of the same diameter so that when the carriages are resting on a level table as in preparation for being put into the machine, they willstill have a level platform.
It will be seen from the foregoing thata very novel and efficient form of vending machine has been provided. The parts are few and simple and effectively-designed and positioned to accurately control the movement of the loaded and unloaded carriages therethrough. The-closure door and trackwayspermit of gravity closing and feeding, with a minimum of mechanical parts. The trip mechanismassures that a carriage positioned for dispensing will be positively maintained in its position of unloading until the door has been fully-moved to its lowermost position, at which time the latch is engaged and the carriage released to move to loading position before another loaded carriage can move into position. The-initial movement ofthe'car 1 in operation, is strong, durable, cheap to manu-- facture and highly eflici'ent and1 fool proof in.
It is to "be-understood, thatthe invention is not limited to the 'preciserarrangementshown, but thatitincludes within its purview, whatever changes fairly come within either the terms or the spirit of the appended claims.
Having described my invention, what I claim as new-and desire to secure by-Letters Patent is:
1; In a dispensing .device of the character described including a casinghaving a front wall, pairs of inclined trackways supported in the casing, article supportin conveyor devices adapted to. traverse the trackways by gravity i feed to be' positioned in dispensing relation to the 'front wall, a dispensing opening formed in the front'wall, a closure door for the opening, coin controlled latch meansfor maintaining the door in closedposition, a. pair of inclined trackways for the return of the conveyor devices from their point'of dispensing to -a point of loading, trip mechanism for controlling the movement of the conveyor devices from one pair of tracks to the other, said trip mechanism actuatedby the movement of the-closure door to open and closed position and bafile means adapted to be positioned between the conveyor in dispensing position and the next adjacent conveyor;
2. In a dispensing device, a casing having a front closure wall provided with a dispensing opening, a closure door for the opening, coin controlled latch means for the door, said casing formed open atits rear end, a pair of tracks secured to opposite sides of the casing, a plurality of article supporting conveyor devices adapted to traverse the tracks, said tracks being inclined from the rear toward the front, said conveyor devices traversing the tracks by gravity in abutting relation, stop means whereby the foremost conveyor device is arranged in dispensing relation to the front opening, a second pair of trackscarried by the sides of the casing and inclined from the frontto the rear of the casing, said conveyor devices adapted to be successively shifted from the first named tracks to the second named tracks for gravity travel to the rear of the casing, trip mechanism actuable by the movement of the closure door whereby the foremost conveyor device is first shifted in its initial movement toward the return tracks when the door is moved to open position and subsequently released to positioning upon the return tracks when the door is moved to closure and latched position, a baffle plate shiftable into the path of movement of a conveyor device next adjacent the conveyor in dispensing position, said plate operable under the influence of the closure door so that said plate raises out of the way of the conveyor devices when closure door is closed.
3. A-=dispensing machine including a casing closed at its front end, a dispensing opening formed in the casing, a closure door for the open-' ing shiftable in a vertical plane, coin controlled latch means for the door, a plurality of conveyor carriages to be successively-moved" through the 7 casing to be successively positioned adjacent the dispensing opening, pairs of inclined trackways supported in the casing and inclined from a rear loading position to the point of dispensing, said carriages traversing the tracks by gravity in abutting relation, pairs of return tracks for the conveyor devices supported in, the casing and inclined from the front toward the rear of the casing, said conveyor devices adapted to be shifted from a point of dispensing to the return tracks, trip mechanism supported on the front wall, means operable by the movement of the door to open and then closed position for actuating the trip mechanism for causing the carriages to successively move from the first named tracks to the second named tracks, a baffie plate adapted to be shifted to baffle position between the carriage in dispensing position and the next adjacent and abutting carriage, said plate moved to baflie position when the door is moved to open position, said carriage in dispensing position adapted to be held against shifting until the door is latched in closed position.
4. A dispensing machine including a casing closed at its front end and open at its rear end, side walls for the casing, a dispensing opening formed in the front wall of the casing, a vertically shiftable closure door for the opening, pairs of trackways supported on the side walls and extending from the rear of the casing to a point adjacent the front wall opening, said trackways inclined downwardly from the rear end, a plurality of article supporting wheeled carriages adapted to traverse the trackways by gravity and in abutting relation, means to facilitate the positioning of the carriages upon the trackways, said carriages and their supported articles adapted to be progressively fed by gravity to a dispensing position adjacent the front wall opening, hook devices carried by the front end of each carriage, trip means movably supported on the front wall and adapted to be contacted by the hook devices, extensions carried by the door for engagement with the trip means whereby the trip means is positively actuated at the limit of movement of the door in either direction, pairs of return trackways for the carriages inclined from the front toward the rear of the machine, the said carriages after dispensing, adapted to be successively shifted from the first named tracks to the last named tracks for gravity feed to the rear of the casing, the trip means operable in one direction upon I the complete opening of the door to permit a slight forward movement of the carriage to a position preparatory to shifting from one set of tracks to another, said trip means, when the door is fully closed adapted to be positively actuated for a complete release of the carriage for shifting movement to the return trackways and a baffle plate movable into the path of an article supporting carriage when the door is moved to open position.
5. A dispensing machine including a casing having side walls and a front wall, the casing open at its rear end, a dispensing opening formed in the front wall, a closure door having a transparent panel adapted to be vertically shifted over the opening, coin controlled latch means for retaining the door in closure position over the opening, pairs of trackways supported on the side walls of the casing and inclined downwardly toward the front of the casing, one pair of trackways extending to a point adjacent the opening, while the other pair of tracks terminate short of the first named tracks, a plurality of wheeled article supporting carriages adapted to traverse the tracks forwardly by gravity, one set of wheels supported on one pair of tracks and the other set of wheels supported on the second pair of tracks whereby the carriages traverse the tracks in a level position, cams supported upon the side walls of the casing for directing the wheels of the carriages to engagement with their respective tracks, pairs of return tracks carried upon the side walls and positioned beneath the first named pairs of tracks, said return tracks inclined downwardly from the front toward the rear of the casing, hook devices carried by the forward ends of each carriage, a trip device adapted to be contacted by the hooks when a carriage is in dispensing position adjacent the front opening, pressure devices carried by the door to positively shift the trip device in a vertical plane when the door is moved to its limit in either direction, the shifting of the trip device in one direction permitting an initial movement of the forward carriage to a latched position, while the shifting of the trip device in the opposite direction releases and drops the carriage to the return tracks, said carriages progressively shiftable to dispensing position by gravity as each carriage is dropped to the return track by its wheels substantially simultaneously dropping off their respective tracks and a baffle plate shiftable to the path of movement of the carriage next adjacent the carriage in dispensing position when the door is moved to open position.
6. In a dispensing machine including a casing closed at its front and open at its rear end, pairs of inclined tracks in the casing for the gravity traverse of wheeled article supporting carriages, the pairs of tracks being inclined downwardly toward the front of the casing with the tracks being arranged in different elevations and parallel, the carriages having a pair of forward and a pair of rear flanged wheels, the forward wheels engaging the uppermost pair of tracks and the rear wheels engaging the lowermost pair of tracks, cam devices for each pair of tracks to facilitate the engagement of the wheels, the carriages adapted to be gravity fed down the tracks in abutting relation for progressive dispensing position, pairs of return tracks positioned below the first named tracks and inclined downwardly toward the rear of the casing, the said carriages after dispensing adapted to be shifted from the first named to the return pairs of tracks, trip means engageable by the end of the carriage in dispensing position, a dispensing opening formed in the front end of the casing, a closure door for the opening and actuating means carried by the door to control the trip means, said door when moved to the closed position controlling the trip means for a release and shifting of the dispensing carriage to the lower return tracks and a baffle plate shiftable into the path of movement of the carriages when the door is moved to open position.
'7. In a dispensing device, a casing in which articles are received at one end to be dispensed at the other end and including parallel side walls, an article conveyor comprising a carriage mounted upon four wheels, two front and two back, a first set of upper and lower downwardly inclined parallel tracks supported upon said side walls and on which said carriage travels forward by gravity from the receiving to the dispensing end of said casing in a level position, a second set of upper and lower downwardly inclined tracks also supported upon said side walls and on which said carriage travels by gravity from said dispensing end to the receiving end of said casing, the front wheels of said carriage engaging the upper and the back wheels the lower tracks of said first named set but with said front and back wheels engaging the lower and upper tracks, respectively, of said second named set, the ends of the tracks of said first and second named sets, at the said dispensing end of the casing, being so relatively spaced that the four wheels of said carriage leave said first named set of tracks simultaneously and drop upon the tracks of said second named set.
8. A dispensing device in accordance with claim 7, but characterized by the ends of said second named set of tracks being upturned in the manner and for the purpose set forth.
9. A dispensing device in accordance with claim 7 but characterized by the said wheels being flanged, by the opposing edges of the upper and lower tracks of said first and second named sets of tracks, respectively, being spaced farther apart than their respective lower and upper tracks, and by the front wheels of said carriage being correspondingly spaced farther apart than said back wheels.
10. A dispensing device according to claim 7 and including cam surfaces on said side walls at the article receiving end of said casing as means for locating said carriage wheels on their respective tracks of said first named set of tracks.
11. In a dispensing device a casing including an end wall having an article dispensing opening, a vertically sliding door as a closure for said opening, a trip mechanism associated with said door, such mechanism being locked when said door is closed but permitted limited upward movement when said door is opened and again lowered by closing of the door; a wheeled conveyor for an article to be dispensed, said conveyor having two successive forward movements into dispensing position, a downward movement and then a rearward return movement, all by gravity; and cooperating means on said conveyor and said trip mechanism whereby said conveyor is stopped at the end of its first forward movement, then released for said second forward movement as said door is opened, and again stopped until said door is closed, said trip mechanism being actuated by the closing of said door to release said conveyor for the said downward movement.
12. A dispensing device according to claim 11 but characterized by said conveyor being a four wheel carriage and including trackways on which said carriage travels and from which it is normally removable, and an inwardly turned ledge on said end wall at the bottom of said opening, the forward end of said carriage moving under said ledge on its second forward movement so that the carriage is held by said ledge against removal from said trackways.
13. A dispensing device according to claim 11 but characterized by said trip mechanism including a spring loaded plate guided for vertical movement, arms extending laterally from the upper and lower ends of said plate, downwardly extending side arms carried by said door, and lateral projections at the lower ends of said door arms for engaging said upper and lower plate arms just prior to the extreme opening and closing, respectively, of said door in its vertical movement of the door and lock such mechanism on closing of the door.
14. A dispensing device according to claim 11 10 but characterized by said cooperating means on said conveyor and said trip mechanism including transversely spaced noon devices extending forward from said conveyor with their hook ends opposed to each other in axial alignment, and by said trip mechanism including transversely spaced hook devices extending forward from said conveyor with their hook ends opposed to each other in axial alignment, and by said trip mechanism including a spring loaded plate guided for vertical movement, an inward extension from the top of said plate, the free end of said extension being turned downward and then upward to form two spaced transverse stop walls and a return bend, said walls being successively engaged by said hooks at the completion of said first and second forward movements of said conveyor, the ends of the stop wall nearest said conveyor and portions of said return bend being notched and the other of said walls terminating short of said inward extension as and for the purpose set forth.
15. In a dispensing device, a casing including side walls, an end wall having an article dispensing opening, a vertically sliding door as a closure for said opening, a bafile plate having vertical slot openings adjacent its side edges, guides on said side walls in which said slide is vertically movable, and means for lowering and raising said baffle plate, accordingly as said door is raised or lowered, comprising obliquely disposed levers pivoted at their lower ends to said door adjacent its lower edge and having their free ends extended through said slots, and a pair of spaced rollers mounted on each of said side walls, each of said levers engaging between and fulcrummed on its respective pair of said rollers.
16. In a dispensing device comprising a casing having a dispensing end and a loading end, a first pair of inclined trackways supported in the casing, conveyor devices traversing the trackways for movement toward the dispensing end of the easing, a second pair of inclined trackways supported in the casing returning the conveyors to said loading end of the casing, a dispensing opening in the dispensing end of the casing, a closure door for the opening, and conveyor releasing means operatively connected to the closure door and responsive to the movement of the closure door permitting the conveyor devices to be shifted by gravity from a dispensing position to the second-named trackways.
17. In a dispensing device, a casing comprising I a loading end and a dispensing end, a closure door movably connected to said dispensing end, a fourwheel carrier, an inclined traekway supported within said casing between said loading and dispensing ends upon which said carrier rolls, and carrier releasing means operatively connected to said door and responsive to the movement of said door for returning the carrier to said loading end after said carrier has completed the dispensing operation atsaid dis ensing end.
' JOSEPH SCHRAGER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Num er Name Date 81,677 Pearce Sept. 1, 1868 1,345.499 Meyforth July 6, 1920 1.498.589 Helt Sept. 12, 1922 1,649,365 Poling Nov. 15, 1927