Патент USA US2107285код для вставки
I Feb. 8, 1938. _ A. R. CONSTANTINE ICE TRAY SUPPORTING AND RELEASING MEANS Filed Feb. “ 25, 1934 2,107,285 Patented reuaiasa ‘- ‘ ‘ 7 2,107,285 _ UNITED I STATES ‘2,107,285 PATENT r OFFICE= \ Arthur lt. Constantine, River Forest, 111., assignor, by mesne assignments, to Reconstruction Fi nance Corporation, Chicago, 11L, a corporation I Application February 23, 1934, Serial No. 112,563 15 Claims. (Chin-108.5) My invention relates in general to refriger- _ My invention further includes numerous other ators and more particularly mechanical refrigerating'apparatus wherein a receptacle, such as objects, advantages and inherent functions, not speci?cally mentioned herein, which will become an ice cube tray, containing water or other mate5 rial to be chilled is carried on a support in posi- tion to be refrigerated; and an important object of the invention is to provide means for releasing the receptacle from its support in order" to facilitate its removal. 10 Another important object isitoi; provide simple apparent as the invention is more fully under stood from the following description which, taken 5 with the accompanying drawing, discloses a pre ferred embodiment of the invention. Referring to the drawing: Figure l is a perspective view of a refrigerating element carrying tray supports including tray re- m release means mounted on the receptacle support and manually operable to separate the tray or lease means embodying my present invention; Figures 2 and 3 are perspective views of parts receptacle from its support by» breaking the ice of the refrigerating element shown in Figure l; v bond which tends to‘ form between the receptacle Figures 4, 5, and 6 are sectional views'taken 15 and its support through the freezing of condensed substantially and respectively ‘along lines H, 15 or other moisture therebetween. _ '5-5, and 6-6 in Figures 8, 4 and 1 respectively; Another important object is to provide arelease means operable to raise one end of the tray from its support in order to break an ice bond between 20 tray and support; a further. object being to form the release means as a wedge adapted to enter ' Figure '1 shows the refrigerating element as mounted in a refrigerator cabinet; and ‘ Figure 8 is a perspective view of a support shelf and attached tray release. . r m‘ To illustrate my inventiomlhave shown on the between the tray and its support for the purpose of separating the frozen parts‘. Another object is to provide a manually oper- drawing a refrigerator element II, in which a shelf I! is mounted in position to receive a container or pan i5 adapted to contain material toberefrig 2, able tray release having an operating handle dis- _ erated. The refrigerator element It may be of any 25 posed in position, at one side of the tray support, to facilitate manipulation of the release without suitable form, construction, or arrangement pro viding for the mounting of the shelf but I have obstructing the removal of the tray from the sup- ‘ shown it in the form of an evaporator or boiler 3 portwhich is connected in a refrigerant circulating Another object is to provide a tray release piv- system including a refrigerant compressor i1, 30 oted on the tray support and having an operating drivingly associated with motive means l9, the handle extending to the side of the support and a discharge outlet of the compressor being con wedging portion opposite an end of the tray in nected through a refrigerant condenser 2|, and a. position to enter between the tray and its sup— ?oat-controlled expansion valve 23 to the inlet port to separate the same when the handle is of the evaporator ii. In this type of refrigerating a‘ manipulated; a further object being to form the system, the refrigerating medium in gaseous con-, release as a relatively flat member over which the dition is drawn into the compressor through con tray may pass without obstruction. ' duit means 25 connecting with the evaporator ,7 Another object is to provide a tray support and discharge and is compressed and delivered in gase release which may be formed as a unit for as- rous condition under pressure to the condenser in u sembly in a refrigerator casing; a further object being to form the tray support as a single sheet which the refrigerant is cooled and changed to liquid form. From the condenser, the lique?ed metal element. refrigerant is delivered through the ?oat-con ' ~ Another important object is to provide a re- 'movable tray support adapted for mounting with-. _. in a. housing such as the evaporatorielement of a refrigerator, the support being formed ‘with holding means adapted to inter?t with portions of trolled valve 23 to the evaporator II in which the refrigerant evaporates or boils and changes to “ the gaseous state while absorbing heat from ‘the walls of the evaporator and the surrounding at 'mosphere and thus accomplishing the refrigerat the evaporator element to hold the support in . ' ing function in the vicinity of the evaporator. tray-carrying position within the element; afurThe evaporator shown comprises a pair of 50 -» ther object being'to form. the holding means as formed plates of channel Shaped con?guration an integral part of the tray support and more having spaced side walls and an interconnecting particularly-to metal member in form which the the trayholding as a unitary means sheet come 55 prise struck out lugs. bottom within the wall,other. said plates The being outer adapted plate 21 tov?t has out-‘Ky, one wardly formed impressions including semi-cy-a ; H1 I , 2 2,107,285 lindrical depressions 29 near the upper edges of its side walls and a plurality of grooves 3| extending in the side and bottom walls and plate 35 has inwardly pressed semi-cylindrical depressions 35*near' the ~upper‘edges- of ‘its side walls in position to register with ‘ ‘ parts are assembled in inter-?tting > relationship in order to form gas receiving cham~ 10 bers from which the evaporated refrigerant is drawn off through the pipe 25. The side walls of the plate 33 are also formed with inwardly extending ridges 31, the ridges on opposite side walls of the plate being in horizontal registra 15 tion. The plates are secured together in inter ?tting relationship by sealing their adjacent edges in any suitable fashion, as by welding, in order to form, between the plates, a gas-tight evaporating chamber comprising the spaces de 20 ?ned by the depressions 29 and 35 and the ridges 3i and 31. The evaporator inlet connection is formed preferably on one of the ridges 31 and the ?nished structure may be strengthened by securing a connector 59 between the pressed 25 portions 35 of the inner plate. The plates are preferably additionally secured together as by means of welding applied intermediate the ridges removal dimcult‘and- to this end I have pro vided a breaker mechanism which is preferably mounted on the shelf a’d conveniently located to facilitate manual operation to break the frozen bond and loosen the container from the shelf : in order to permit the same to be easily removed from the freezing unit H. For this purpose. I have provided a breaker element comprising a member 53 pivoted on the forward portions of the shelves II or on the bottom wall 01' the unit 11 H,v which also may act as a shelf. The mem bers 53 may each be secured in position by means of a pin 55 and each has an operating handle 51 extending adjacent‘ a side edge of the shelf'on which it is attached. 15 The refrigerator unit H is preferably arranged in the cooling compartment I 2 of a suitable re frigerator cabinet it having an opening provided with a suitable closure or door H, one end of compartment, and said unit ll being arranged in the compartment so that its forward end faces the compartment opening whereby when said door is opened, through the compartment 3| and 31. 30 C13 Ul irigerator in heat exchange relationship with with a door or other clo sure means at its forward end-whereby to per mit access to the breaker means and the-com‘ tainers through an end of the unit, when said‘ the evaporator unit ii. The shelf, however, is closure means is open. preferably formed for inter?tting engagement The member 53 is of relatively shallow con struction‘ in order to present little, if any ob struction, to the removal of the container I5 from the shelf, the container being slidable over with the registering ridges 31 which extend in wardly of the side walls 40 35 the member 53 without requiring appreciable elevation from its normal resting position on the shelf. When the member is in normal position, an or 50 The shelf is adapted to form a carrier on which the container l5, or any other article or device, may be mounted in position to be refrigerated. The 60 particularly contemplating a relatively shallow, adapted to receive water to be a frozen to form ice cubes. The plate ll near its rearmost edge is or may be provided with means, comprising an upwardly struck lip ",in posi tion to engage the pan in order to limit itsrear~ substantial space between it and the adjacent edge ofthe shelfso that there is no danger of the arm becoming frozen to the shelf. 45 The member 53 has a wedge-like portion com prising a blade 59, which is adapted to enter between the bottom of the container l5 and the shelf, as shown in Figure 6, is moved from its normally inactive position, shown in full lines in Figure 3, to the ice break 1 C ing position. illustrated in dotted lines. The wedging action exerted between the shelf ‘and the container’ l5 by, the entrance of the blade moisture between the container ing shelf, thus.freeing the container and per- 60 mitting it to be readily withdrawn from its sup porting shelf. _ The shelf also may be curled as at 63 in order ward travel on the shelf and the plate ‘I may to improve the appearance of be formed with laterally extending'beads l5 and and any suitable yielding means maybe pro- 65 , longitudinal depressions 5| ' ' vided, if desired, to normally'bias the breaker; _ member 55 toward the inactive position whereby Ingthe, operation of refrigerators, moisture is ‘to automatically return thehandle to‘the posi likely to condense upon the shelf I3 and to form -.tion shown in full lines in Figure 8 after being a frozen seal between the bottom of the container manipulated to perform the ice breaking func- 70 tion. Such provision of yielding means is not, it under the refrigerat ing action of the unit II when the same is in . of course, essential since the breaker may be operation. The container l5 may thus become manually returned to the‘inoperative position. 75 so tightly frozen upon the I do, however, prefer to form the handle-‘with a shelf as to render its shoulder or projection 8! in position to engage 75 increase the strength‘ of the shelf and for drainage purposes. 2,107,290 av co-operating portion or element 62 formed on or carried by the shelf for limiting the move ment of 'the breaker member in one direction on its pivot and determining its inoperative position. ' 3 2. The combination‘ with a cooling device hav ing supporting} means adapted to carry support able means in heat-exchange relationship with said cooling device, of means comprising a knife blade pivoted on said supporting means, and The element 62 may take the form of a lug inte manually operable means to turn said knife blade grally formed on a washer 65 mounted between about its pivot in a direction to enter between the forward edge of the shelf 4! and the ice ‘ the supporting and supportable means in order breaker, and having a perforation receiving the pin 55. The washer also may have a flange 61 curled about the forward edge of the shelf to hold the washer from turning on the pin. The blade 59 also may be and preferably is provided with a shoulder or projection 69 in position to engage a stop on the shelf, such as the stop 62, in order to limit the ice breaking-movement of to break an ice bond therebetween. 3. The combination with a cooling device hav 10 ing supporting means adapted to carry support able means in heat-exchange relationship with said cooling device, of a handle pivoted on said supporting means, and meansassociated with said handle and adapted, when said handle is the breaker element and stop it in the position ' shifted, to enter between the supporting and “supportable means to break an ice bond there shown in dotted lines in Figure 8. _ ' The breaker mechanism, which I have provid ed, is extremely simple in construction, cheap to between. I I ‘ 4. The combination with a cooling device hav ing support means adapted to carry supportable 20 means in heat exchange relationship with said cooling device, of a release lever pivotally mount ed on said support means for movement about a vertical axis, ‘said lever being ‘adapted "to ex 20 manufacture, and positive in action. It may be mounted as well upon the bottom wall of the unit H, see Figure l, as on the shelves 41. Its construction‘ is such that the mounting or re moval of the container IS on or from the‘ shelf 25 is substantially unhampered. The portion of the ' tend normally in position permitting free access to said supportable means, said lever also hav breaker, over which the tray is moved, is rela tively ?at, while the handle 51, when the breaker ing a portion adapted, when the lever is moved is inactive, is disposed at one side of the shelf from its normal position, to enter between. said in a position permitting unhampered movement support and supportable means in order to break 30 an ice bond therebetween. 30 of the container. 5. The combination with a cooling device hav-v The shelf also is of simple construction and can be easily and cheaply manufactured by a‘ ing a shelf for supporting a container in said simple sheet metal stamping operation. In addi tion the shelf construction, in conjunction with 35 the construction of the unit I l. whereby the shelf may be easily mountedon the unit without re quiring additional fastening means has great' utility, more especially because the shelf may be arranged selectively at any desired elevation in 40 the unit H or. may be entirely removed by simply withdrawing it from mounted position, thus per mitting considerable latitude in the arrangement of the cooling space within the unit H. One or more shelves may be mounted and thus permit the reception of containers'of a variety of sizes in a refrigerator unit of standardized form, and a further advantage resides in the ability to quickly remove any or all shelves from the unit in order to leave the interior of the unit entirely unobstructed and thus facilitate cleaning oper ations as Well as permit the unit to receive a device, said device and shelf being formed to permit removal and replacement of said con tainer across an edge of said shelf, of a lever piv otally mounted on said shelf at or adjacent said edge, said lever being mounted for pivotal move ment'about a vertical axis and having a handle to facilitate manual operation thereof, said lever being, adapted to‘ extend in position with its 40 handle in substantial alinement with said edge whereby to avoid obstructing removal or replace ment of said container, said lever having a por tion adapted, when the lever is moved from said ‘ normal position, to enter between said shelf and 45 said container to break an ice bond therebetween. 6. The combination with a cooling device hav ing a shelf adapted to carry a container in heat exchange relationship with said cooling device, a handle pivoted on said shelf, and means asso 50 ciated with said handle and adapted, when said handle is shifted, to enter between the shelf and container of maximum size which is not possible ‘where the shelves are permanently mounted or the container to break an ice bond therebetween, mounted in a fashion rendering removal di?icult. said means being adapted normally to lie out 55 wardly of and opposite the ice bond. Numerous other objects, advantages and in '7. A shelf structure for supporting a container herent functions of the invention will be appar ent, from the foregoing description, to those in heat exchange relationship with a cooling de familiar with the art of refrigeration and it vice, a handle pivoted on said shelf adjacent an will be obvious that numerous changes may be edge thereof, and means associated with said 60 handle and adapted, when said handleis shifted, 60 made in the form, construction, and arrange ment of the several parts without departing from to enter between the shelf and the container in the spirit or scope of my invention or sacri?cing order to break an ice bond therebetween, said means being adapted normally to lie outwardly any of its attendant advantages; the forms here in described being preferred embodiments for ' of and opposite the ice bond. 8. The combination with a cooling device, hav 65 the purpose of illustrating my invention. What I claim as new and desire to secure by Letters Patent is as follows: 1. The combination with a cooling device hav ing supporting means adapted to carry support able means in heat-exchange relationship with said cooling device, of means comprising a wedge ing- supporting meansadapted to carry support able means in heat exchange relationship with said cooling device, of breaker means carried by said supporting means and operable to break an ice bond between the supporting and support able means, said breaker means comprising a 70 carried by said supporting means and shiftable' relatively shallow element mounted in position thereon between said supporting and supportable to enter between the supporting and supportable means in order to break van ice bond therebe-_ means and permitting substantially unhampered» 75. 75 tween. 4 2,107,286 'relative sliding movement between the support ing and supportable means. 9. The combination with a cooling device, hav ing supporting means adapted to carry support ported on said shelf, and means between the shelf and tray to break the adhering ice-Jsealpr. bond existing therebetween, said means comprisi. ing a horizontal lifting cam having an inclined cam surface, said cam being mounted for, rota-v on said supporting means and having an arm tion about a vertical axis, the high portion of formedas a handle extending at one side of. the ‘said inclined cam surface being normally out of supporting means and another arm extending , engagement with the shelf and tray, and means into position to enter between the supporting and for rotating said cam about its vertical axis _to the supportable means when said handle is moved force the high portion of the inclined ‘cam sur face between the shelf and tray to force the tray in order to break an ice bond between the sup able means in heat-exchange relationship with said cooling device, of a bell crank lever pivoted porting and supportable means. _ out of contact with said shelf. _ ' 14. Inthe combination with a freezing unit ment having a freezing tray therein adapted to having a supporting element and a freezing tray _ be periodicallyremoved, of swingable wedging element adapted to be periodically removed, 0s means operable about a vertical pivot axis with cillatable wedging means pivoted on one of said a wedging action betweenthe compartment bot- . ele ents for oscillation about a vertical axis, said tom and the bottom of the tray to release the means comprising a handle portion, and a portion 10. The combination with a freezing compart~ latter from frozen connection therein. 11. The combination with a freezing compart ment and a tray arranged therein, of a lever pivotally mounted on a vertical pivot and operat ing a cam with a slow powerful wedging action exerting a wedging action between the, support ing element and the tray element thereby to re lease the latter from frozen connection with the former. . l 15. A refrigerating apparatus comprising an evaporator shelf element, an ice cube tray ele under the tray to release the same from its frozen ment removably supported on said shelf element, contact, with the compartment. 12. A ‘refrigerating apparatus including an and means between the shelf element and tray element to break the adhering ice bond existing ' evaporator shelf, an ice cube tray removably sup ported on said shelf, and means between the shelf thereb'etween, said means comprising a stud ‘and tray to break the adhering ice seal or bond member secured to and extending vertically from existing therebetween, said means comprising a one‘ of said elements, a cam memberI adapted for rotation around said stud and having a surface stud member, a cam member adapted for rota tion around said stud and having a surface nor- - normally ?ush with the contacting surfaces of the shelf and tray and a handle extending out 2-9 LI mally flush with the contacting surfaces of the - wardly from said cam member and lyingin the shelf and tray, and a handle for rotating the plane of the cam member for rotating the same cam about the stud to force the tray out of con about the stud to force the tray element out tact with said shelf. ' ~ 13. A refrigerating apparatus including an of contact with the shelf element. evaporator shelf, an ice cube tray removably sup ARTHUR R. I CONSTANTINE.