US2201596A

US2201596A - Refrigerating apparatus

Info

Publication number: US2201596A
Application number: US258480A
Authority: US
Inventors: Wilford H Teeter
Original assignee: General Motors Corp
Current assignee: Motors Liquidation Co
Priority date: 1939-02-25
Filing date: 1939-02-25
Publication date: 1940-05-21
Anticipated expiration: 1957-05-21

Description

w. H. TEETER REFRIGERAIING APPARATUS Filed Feb. 25, 1939 I INVENTOR. h//Afoeo ff. 72g nsf.

M' dal /w's ATToRNEYs.

May 21, 1940. w. H TEETER REFRIGERATING APARATUS 5 Sheets-Sheet 2 Filed Feb. 25. 1939 INVENTOR. War-oxo H. 72:72:@

Md* las( Y Z ,ws ATTORNEYS.

MY 21 1940- l Iw. H. TEETER 2,201,596

REFRIGERATING APPARATUS Filed Feb. 25. `lass s sheets-sheet s .7 'i 3 77 7'a 6 8/./4e y 8 H. Irl- :ETER REFRIGRTWG 'APPARATUS May 21, 1940.

Filed FebQ l'25, 1959 5 sheets-sheet V4 .l l ATTORNEYS.

May 21, 1940.4 w. H. TEETER HEFRIGERATIN-G APPARATUS Filed Feb. 25. 1959 5 Sheets-Sheet 5 llii: l. Si! ...tm

INVENTOR.

lBY

//S ATTORNEYS.

/// ff z,

r Patented Mey 21, 1940 I' PATENT' oFF'lcE meneame arraasrus wurru n. Teuer, Dayton, ohio, assigner zu General Motors Corporation, Dayton, Ohio, a corporation of Delaware Application February 25, `1939, serial No. 258,480

is on..

This invention relates to refrigerating apparatas and particularly to refrigerated ice cream storage cabinets.

Ice cream storage or the )ilse cabinets are usually provided with a removable sub-top to facilitate the assembly or disassembly of the cabinet in order to remove parts thereof for repair and/or replacement. In the past', such ice cream cabinet sub-tops have. been formed of relatively l thick rigid woodA or rubber material, thus rendering the sub-tops heavy`and dimcult to remove from the cabinet. In the use of wood subtops for ice cream or the like storage cabinet constructions.- the sub-tops thereof are difcult to seal against moisture entering interior parts of the cabinets and consequently the moisturel more readily deteriorates the wood sub-tops and other inner parts of such cabinets. In addition to such sub-tops becoming deteriorated and being dimcult to remove from cabinets, the wood thereof does not provide as efllcient insulation around or adjacent the'top surface of a cabinet as com-4 pared to other insulating materials. The relatively thick wood parts of cabinet sub-tops ordinarily occupy a large area which should be more effectively insulated in order to prevent the collection or condensation of moisture on the top V surface of an ice cream cabinet, particularly in the top portion of an ice cream cabinet, to reduce the weight of the cabinet and to provide for the removal of the low pressure side of a refrigerating system, associated with the cabinet. along with the cabinet sub-top as a unit from the cabinet.

An object of my invention is to'provide an improved refrigerated ice cream or the like storage cabinet. 1-

Another object of my invention is to provide a refrigerating apparatus 'of the ice cream or the like storage type of improved construction which is effectively insulated, of light' weight, strong and durableand of low manufacturing cost.

.A further object of my invention is to provide a refrigerated ice cream cabinet wherein the top portion thereof is of an improved construction to afford more 'effective insulating of sameand wherein the top portion ofA thecabinet can be quickly and readily removed from the main cabinet portion.

A still Afurther object of my invention is to pro- ',vide a. refrigerated ice cream cabinet with a subftop to which the liner, forming walls of the storage compartment within the cabinet, and the re- (Cl. 32e-89) frigerant evaporating element -or coil associated with the cabinet and secured to the liner is ref movable along with the sub-top as a unit from the cabinet.

Stilll further and more specific objects and advantages of my invention reside in thef simplicity of the improved refrigerated'ice cream cabinet construction and in novell combinations and arrangements of parts thereof or elements of a refrigerating system associated therewith as f` will more fully appear in the course'of the following descriptionm In the drawings:

. Fig. l is a perspective view of a refrigerated ice cream storage cabinet constructed in accordance with my invention;

Fig. 2 is an enlarged transverse vertical sectional view of the ice cream cabinet taken on the line 2-2 of Fig. 1;

Fig. 3 is an enlarged horizontal sectional view of one corner of the ice cream cabinet 'taken on the line 3--3 of Fig. 1:

Fig. 4 is a fragmentary perspective view in a direction toward a corner of the refrigerator cabinet .showing the sheet metal construction thereof;

Fig. 5 is an enlarged fragmentary horizontal sectional view of another corner of the ice cream cabinet taken on the line 5 5 of Fig. 1; .l

Fig. 6 is a. fragmentary vertical sectional view taken on the line 6-6 of Fig. 5; Fig. 7 is an enlarged fragmentary vertical sectional view of the refrigerating apparatus taken on the line 1--1 of Fig. 5;

Fig. 8 is a vertical sectional'view of the refrigerator cabinet taken on theline .-8 of Fig. "l:

and v Fig. 9 is@l vertical sectional view of the refrigerator cabinet similar toFig. 7 and showing the cabinet sub-top and other parts secured thereto removed from the cabinet vouter wall structure.

' Referring to the drawings, for illustrating my invention, I have shown in Fig, 1 tliereof a refrigerating apparatus in the form of anice cream can receiving and storage cabinet or the like, 45 (generally'represented by the reference character i5, and having a rfrigerating system associated therewith. The cabinet l5 of `the refrigerating apparatus is of a generally square or rectangular form and comprises a metal frame structure (see 50 Fig. 4) including an angled sheet metal supporting base i6 having a base plate I1 welded or otherwise suitably secured' thereupon and extending outwardly a short distancefrom the support` ingsbase with its outeredges bent upwardly as at l I8 (see Figs. 2 and 4). At three vertical corners of the frame structure there is a corner post i9 formed of sheet metal bent to provide vertically .extending anged portions 2| and horizontal flanged portions 22 (see Figs. 3 and 4). The

' lower horizontal flanged portions 22 of post I9 are spotwelded as at 23 to the base plate I1 and the upper horizontal flanged portions 22 of the post I9 are spotwelded as at 24 to the bottom face of an upper part of the cabinet frame. This upper frame part of the pabinet frame structure is generally represented by the reference character 25 and is also formed of sheet metal bent to provide a short upstanding side portion 26, a lower horizontal portion 21, a vertical portion 28, an upper horizontal portion 29, another vertical portion 3| and an intermediate horizontal portion 32 (see Fig. 4). Finished metal side panels 35 are shown secured in abutting relation to the flanged portions 2| of posts I9 upon the frame structure of cabinet I5 by screws or the like 36 which pass through and also clamp inished exterior metal rounded corner members 31 to the cabinet structure. The fourth vertical corner of the frame structure of cabinet I0 (see Figs. 5, 7 and 8) is formed by an upright sheet metal member 4| having a short flanged part 42 and provided with an open part 43. A pocket provided adjacent the open part 43in member 4I is formed by a metal box-like member 44 welded or otherwise suitably secured to member 4I. Annished exterior rounded metal corner member 45 is secured to the member 4I by screws or the like 46 passing therethrough and through the exterior side panels 35 and threaded into the flange 42 on member 4I (see Fig. 5). In addition to the pocket formed 4by the metal member 44 adjacent the opening 43 in the upright corner post 4| ,of the cabinet metal frame structure the corner post 4| is also provided with a vertically elongated slot or opening 5I which is disposed in vertical align'- ment with a break or open portion provided by spaced apart and depressed end portions 52 and 53 (see Fig. 8) of the upper frame member 25 of the cabinet frame structure. The open portion 5| in member 4| also extends across the top wall part of member 4|. The open portion or break in the upper frame member 25, provided by the spaced apart end portions 52 and 53 thereof, and the open portion 5| in the one corner post form- 'ing member 4| .register with one another to provide a slot in the cabinet frame construction for a purpose to be hereinafter more fully described.

However, this slot in the cabinet metal frame construction is normally closed by a plate 54 which rests or ts in the depressed end portions 52 and 53 of upper frame member 25. The plate 5ft has substantially the same cross-sectional contour as the wall portions'21, 28, 29, 3| and 82 of member 25 and is normally secured to member 25 by screws 56 (see Fig. 7), which screws pass through plate 54 and are threaded into opcnngs provided in the depressed parts of the horizontal portion 21 of member 25. The opening or slot 5I in the top and side Walls ofupright box-like corner post 4I has a metal membenpro vided with a flanged part 56 which is spotwelded as `at 51 (see. Fig. 8) to post 4|, a wall part 58 extendingv outwardly from part 58 thereof and another short flange part 59, extending there'- around.

A compartment formedwithin cabinet |5 by a metal liner BI Vis adapted to receive cans containing bulk ice cream or other food products such as packagedrfrozen foods of Various kinds.

.portion of liner 8l by rivets or the like 12.

metal member 1I 'is secured to the upper edge i The annular member 1| has its top edge rolled over or reverselafkbent to provide a hook 18 thereon which extends continuously around the open top of the liner 8|. It is to be noted that the hook portion of member 1| is spaced from the main body portion thereof to provide a channel for a purpose to be hereinafter more fully described. Member 1| is also provided with a plurality of spaced apart holes for receiving screws 14 which pass therethrough and are threaded into relatively flat metal pieces 15, preferably perforated as at 15 (see Fig. 9). The metal pieces 15 are preferably of a material having low heat conductivity characteristics, and it should be notedv portion 18. It is to be noted that the hook por' tion 19 is spaced from the main portion of the metal sub-top plate 18 also for a purpose to be hereinafter more fully described. The other edge portion of the sub-top plate 18 is bent down as at 8| and thence outwardly as at 82 to lay against or rest upon the intermediate horizontal portion or ,ledge 82 of the frame member 25 of the cabinet frame structure. A member 85 is secured. by screws 88 (see Figs. 2 and 6), to the frame part 25 of the cabinet frame structure and provides a backing or reinforcement for the curved portion of a finished metal top 88 placed over the sub-top 18 and part 25 of the cabinet frame structure. Finished metal top 88 is secured to cabinet I5 by means including a plurality of screws 88 spaced apart around the sides of the cabinet and threaded into the upturned outer lip portion 28 of the cabinet top frame part 25. 55

The upturned edge 51 on plate 58 fits within a slot cut in a slab of corkboard insulation 89 located between theplate 56 and the sub-top plate 18 of the cabinet. Small pieces of corkboard insulation are placed between the frame part 25 and the top wall of corner post 4|. One of these small pieces of corkboard. 9| extends entirely across the slot or open portion 5I of post 4I and is secured to the corkboard 89 and removabletherewith from the cabinet proper. The wall of the storage compartment throat or wall of the door opening above the liner Iii is formed by an annular ilexible and resilent molded rubber member 82 which is relatively fiat and wide in cross-sectional contour. Rubber member 82 is provided with an integral beaded upper lip or flange portion 88 having an integral downwardly extending leg part 94 which fits within the channel provided by the reversely bent edge part of the sub-top plate 18 to form the hook 18. Rubber member accuses 92 is also provided with a relatively thick por#A tion 95 adjacent its bottom edge and which thick portion 95 has an upwardly directed leg portion 96 fitted within the channel provided by thereversely bent part of the annular metal member 1|. The main flat portion of`member 92 extends between and ts over the hooks 13 and 19 to maintain the rubber member in place and to provide a wall for the door opening. The rubber member .92 is flexed or stretched to locate its integral legs Stand 96 in `their respective positions, and the force exerted bythe resiliency ofv member 92 maintains the legs locked within the reversely bent portions of member` 1| and,v of plate 18. This stretching of member 92 in place between the liner 6| and cabinet metal top provides a sealed joint at this point, and the member 92 forms a wall which is-imperviousto moisture. Prior to placing vthe throat lining-or door opening wall-forming rubber member '92 upon cabinet |5, a thermal plastic insulating material 91 such, for example, as hydrolene is packed against the slab of corkboard 89 and around the spaced apart -ilat metal pieces 15 to further insulate the cabinet top wall portion. In order to cool the storage compartment, formed by liner 6| within cabinet l5, I wrap a pipe or conduit 10| around the liner 6| and solder or otherwise firmly secure the pipe to the liner outer wall surfaces. The pipe or conduit |0| substantially surrounds the liner- 6| andforms' a refrigerant evaporating element or .expansion coil. Refrigerant evaporated within coil |0| cools the interior of the foodstorage compartment. Slabs of corkboard |02 are placed around the liner 6| and refriger. ant evaporating coil |0| to insulate the coil and the storage compartment. The one end'i03 of pipe coil 10| extends through a/ wall of a, metal box |04 secured to liner 6| and is connected to an expansion or the like device or valve |05 disposed in the Vbox |04 (see Figs. 5 and 6). The f. wall of liner 6| adjacent the box |04 is cut away to provide access to thevalve |05 from within the food storage compartment. A plate |06 hav- I ing upper clips |01 and a lower spring clip |08 is removably attached to the liner 6| for normally closing the opening therein,which provides ac- -cess tol valve |05 within th'e box |04. The removable plate v|06 is located in vertical alignment with the side Wall portion of liner 6| and provides a continuation thereof adjacent the .box |04. The other` end H0 of the refrigerant ex- 'pansion pipe coil |0| extends outwardly from the liner 6| through-an opening provided in oneof the slabs of corkboard insulation' |02 ad- -jacent the opening 5| in the boxylike corner post 4|. The end ||0 of coil |0| extends downwardly y vand is provided with a removable connection with the opening lin another. pipe which leads to the compressor ofa refrigerant liquefying and condensing unit -(not shown). Another pipe or conduit ||3 extends along the end portion I0 of pipe coil |0| through the' corkboard insulation'. This pipe ||3 is removably connected with a pipe leading from the condenser or receiver of the refrigerant liquefying and condensing unit. A'I'he other end H4 of pipe ||3 extends through a wall valve |05. The refrigerant liquefying and condensing unit (not shown) withdrawsrefrigerant from the pipe coil |0| through its end portion H0, thus causing evaporationY of refrigerant in the coil |0| to thereby refrigerate or coolthe interior of the food storage compartment. Con-.1. densed liquefied refrigerant is. circulated to the (see Figs. 5, '1 and 8) are secured to the f The side wall panels expansion valve |06 from the refrigerating unit through the pipe I|3 and this valve controls the entrance of liquid refrigerant to coil |0| in ac- ;/cordance with the refrigeration requirements of the coil. I secure a tube ||6 to nner sul and uns tube" forms a well into which I insert a thermostat opening 43 in member 4|.` Switch |22 controls the starting and/or stopping of the refrigerant circulating unit in accordance with the temperature of the cooling eiect produced by the refrigerant evaporating element or coil |0| secured in "intimate thermal contact, with liner 6| of the food storage compartment. The switch responds to expansion and/or contractionv of its bellows in response to pressures of a fluid sealed within the. bellows, pipe H9 and thermostat bulb ||1 as is conventional in such refrigerating-apparatus.

In order to close the vertical part of opening 5| inthe wall of the cabinet corner post 4| f through which the refrigerant conveying pipe lines ||0 and H3 and tube ||6 extend, I provide a plate |3| having holes therein which receive the pipes H0, ||3 and tube H6 and'which plate is slipped over the pipes during assembly of the refrigerating system to the cabinet 5. I also slip a ilexible rubber grommet |32 over each refrigerant pipe H0 and ||3 and over the tube H6,

. which is secured to liner 6|, after the pipes H0,

||3 and tube ||6 have been passed throughthe openings in plate |3|. This plate |3| is wider than the opening 5I in the wall of post 4| and is located adjacent the opening 5| and rests upon the bottom horizontal part 50 of the metal mem-r ber located about the opening 5| and abuts the Wall of post 4|. A horizontallyfdisposed plate |33 closes the horizontal part of opening 5| in the top wall portion of the .comer post 4|. AIn

the opening 5|.

plates' |3| y and |33. rmly in placeY Ain" post 4| and eilectivelyy sealing -or insulating A.

'35 of cabinet I-'areusually '75 coated with paint or enamel and the finished top panel of the cabinet is preferably formed of Monel metal or stainless steel. Cabinet I5 is preferably provided with a central mullion, covered by a'part |45 of the metal cabinet top 88 (see Fig, l), which divides the top of the cabinet into two door openings. 'I'he two door openings in the top of cabinet i5 are normally closed by doors |46 which restupon the beaded finger o r flange portion 93 ofthe rubber member 92. The central mullion, covered by the part |45 of cabinet top 88, may be provided'by an integral part of the top frame portion 25 of the cabinet frame structure and is preferably insulated in a mannersimilar to the method of insulating the other portions of the compartment throat or door opening. Thus, it will be seen that two of the rubber throat linings or annular compartment door opening wall forming members 92 are employed in the construction of my improved cabinet I5.

In order to rigidly clamp and support the subtop plate 18 of cabinet 5 and other of the elements of thecabinet secured thereto, I pass a plurality of screws |48 'through the horizontal flanged part 82 of sub-top 18 and thread these screws into threaded holes provided in the horizontal part 32 of frame portion 25 of the metal cabinet frame structure. The groove around the top portion of the cabinet, covered by the exterior top member 88 and formed by the downwardly extending part 8| and horizontally flanged part 82 of cabinet sub-top 18 registering with the downwardly extending part'3l and horizontal part 32 of frame portion 25, is partially filled with a thermoplastic insulating material |49, such for example as hydrolene. The material |49 fills the cracks at the connection of the parts 82 vand 32 and seals same as well as sealing the openings through which the screws |48 pass. This insulating material |49 seals the joint between the cabinet proper and the removable section or portion of the cabinet which will now be described.

In the present apparatus the compartment liner 6|, refrigerant coil |0| and tube ||6 secured to the liner, box |04 and the expansion valve |05 therein as well as certain upper inner parts of cabinet I5 are removable from the cabinet proper in order to provide for the removal of the portion of the refrigerating system associated with the cabinet for repair or replacement. In disassemI- bling the cabinet |5 for removing the portion of the refrigerating system associated therewith,`

the lower edge of the rubber door opening wall forming member or rubber compartment throat lining 92 is flexed or pried, by a suitable tool, away from the top edge of compartment liner 6| The thick part 95 of member 92 is then grasped by the hands and flexed away from the annular member 1| to cause its integral leg portion 96 to be withdrawn from the space or channel between the reversely bent or hooked portion 13 of member 1|. After removal of the lower part'of rubber member 92 from its locking member 1|, it is pulled or peeled upwardly, and by inserting a tool under its-upper lip 93 its upper mounting leg 94 can be readily withdrawn from the reversely bent or hooked portion 19 on the cabinet subtopplate 18 to permit removal of the member 92 from the cabinet I5. The removal of the rubber member 92 from cabinet I5 will now permit detachment or removal of the cabinet metal top 88. Therefore, the screws 90, disposed in spaced apart relation around the side walls of cabinet I5, are removed from the part 26 of frame portion 25 of the `cabinet frame structure. The cabinet metal top 88 can then be readily' removed, and removal of this top 88 provides access to the plastic sealing insulation |49. This sealing insulation |49 is then removed by a screw driver or like tool to provide access to the screws |48. Upon removal of screws |42 and |4I, the plates |36, |31 and |38 can be detached from the cabinet to permit removal of the loose fibrous insulation |35. Thereafter, plate |33 is removed to uncover the horizontally extending part of opening 5| in the corner post 4|. 56, which secure the bridging plate 54 to the ends 52 and 53 of frame part 25, and removal of the plurality of screws |48 around the top of cabinet |5 certain parts of the cabinet can b e removed from thev main part or cabinet proper. P rior to attempting removal of the removable section or portion of the cabinet to now be described, the thermostat bulb ||1 is withdrawn from the well or tube H6, the exibility of the copper pipe ||9 permitting such withdrawal, and is placed out of a vertical path of movement of the refrigerant conveying pipes ||0 rand 3. Thereafter, an ipward force applied to the subtop plate 18 of cabinet |5 will elevate plate 18, metal members 15, the annular metal member 1|, liner 6|, plate 66 and the top corkboard insulating slab 89 together with tube ||6 andpipe coil |0| secured to the liner 6| ,(see Fig. 9). Thus these identified parts of cabinet I5 form the removable section or portion of the apparatus disclosed. It is to beunderstood that the pipe ends H0 and I3 terminating below the point at which they pass through the insulating` side wall of cabinet |5 are disconnected from their corresponding pipes leading to the refrigerant'liquefying and circulating unit prior to elevating the aforementioned parts of the apparatus forming the removable section or unit. Thus, elevation of the parts described causes the tube H6 and refrigerant pipes ||0 and 3 to pass upwardly in the slot or opening 5| in post 4| through the horizontal part of opening 5|, normally covered by plate |33. The horizontal part of opening 5| affords clearance for theremoval of the refrigerant pipes with the liner as a unit with the cabinet sub-top structure through the space provided between the spaced apart ends 52 and 53 'of the frame part 25 of the cabinet metal frame structure (see Fig. 9) The closure plate |3|, through which the tube ||6 and pipes ||0 and ||3 extend, together with the grommets |32 are raised along with the elevated parts or removable section described. The control switch |22 remains in the cabinet proper by virtue of removal of the thermostat bulb 1 andits switch connecting pipe ||9 from the thermostat well I6. However, the box |04 and the refrigerant expansion valve IDS-disposed therein is, of course, elevated along with the other raised parts or section of the apparatus. The small segment of corkboard insulation 9| is secured to the cork cabinet top insulating board 89 and is elevated therewith from the cabinet proper. The remainder of the corkboard slabs of insulation |02 all being sealed or secured to one another, preferably with hydrolene cement disposed between their abutting surfaces, remain in their respective positions within the walls of the cabinet structure. The removal of parts or the removable section of the apparatus as described and as illustrated in Fig. 9 of the drawings, permits repair or replacement Now, upon removal of screws of various parts of the apparatus at the location 4 and its refrigerani'foutlet pipe. Although the 'a cabinet is devoid of wooden parts and has its top ofinstallation and avoids the necessity of shipping the entire apparatus back to the manufacturer. f

My improved refrigerating apparatus and the construction of same permits the top portion of a refrigerator cabinet to be more effectively insulated in that I have' entirely eliminated the use of'a thick wood sub-top ltherefrom. Due to the low temperature atk which the interior of a cabinet of the type disclosed is maintained, the eliminating of wood from around their tops and the substitution of a more eillcient insulating material in place of the wood isan advancement in the art of ice cream cabinet constructions. This advancement not only prevents the collection 'orf condensation of moisture around the door openings on the top surface of the cabinet, but alsoydecreases theweight of the cabinet and renders same of increased structural strength'. The location of the expansion valve Ill, or other vsuitable refrigerant flow control means, adjacent the food storage compartment liner il and the provision of obtaining access thereto, for permitting adjustment thereof, from within the food storage "compartment of the refrigerator cabinet is another feature of my invention. 'll'liis location of the expansion valve permits. the podtioning of highly effective insulating material.' around the valve or its-housingbox which preventscondensation of moisture thereon.,withdrawn ,from air exteriorly of the cabinet, andrrosting of the valve I portion formed of metallic members, thesealing larrangement at the point ofmseparation of the metal members, which provides the structural strength of the cabinet, forms an'air tight joint to thus prevent the entrance of moisture to 111-.

terior parts of the refrigerator cabinetfv In the apparatus disclosed the control switch |22 is concealed to enhance the appearance of the cabinet, but this switch is readily accessible for adjustment or repair uponremoving the corner panel 4I which covers the one corner post of the' cabinet.

Prom'the foregoing, it will be seen that I have provided an improved low temperature ice cream or other frozen food storage cabinet w ch can be emcientlyinsulated, readily disassem led and .which is of low manufacturing cost, of decreased lweight and of increased structural strength. In

the improved refrigerating apparatus disclosed I have concealed certain 'elements of the apparatus, to which access is frequently necessary, in order to more effectively seal and insulate the i cabinet of the apparatus and to improve 'its exterior appearance, while at the same time-'providing for access to such elements in a minimum of time and with less dismantling operations. The elimination of wood and other similar from ,me cabinet winchreaduy become deteriorated,

renders the apparatus capable of use over a long period of time without repair or replacement.

While the form of embodiment of the invention as herein disclosed constitutes a preferred dorm, it is to be understood that other Aforms might be adopted, all comlngwithin the scope of the claims which follow.

What is claimed is as follows:

l. a refrigerating apparatus comprising combination, a cabinet having a bottom wall, a plurality. of side walls, a top'member and a subtop wall structure, a metallic member forming a compartment within said cabinet, said cabinet f top member and said cabinet sub-top wall structure having registering apertures therein 'provid-Y aaoipoe i ing an access opening to said compartment, said metallic member being rigidly connected to said cabinet sub-top wall structure in spaced relation to said cabinet top member, a refrigerating system associated with said cabinet and including a refrigerant evaporating element extending over and being directly secured to said compartmentl forming member, said cabinet top member being detachable from vsaid cabmeaand said cabi;

net sub-top wall structure being detachable from other walls of said cabinet and movable upwardly thereof whereby said rigid connection of said compartment forming member therewith causes removal of said compartment forming member v and said refrigerant evaporating element of said lli refrigerating system along with said sub-top wallstructure as a unit from said cabinet.

lation to said cabinet top member, means including a resilient element extending between; said members and engaging said top member for. securing same upon said cabinet, said means be ing constructed and arranged to form the wall of said' compartment access opening, a refrigeratingsystem associated with said cabinet and in' cluding a refrigerant evaporating element extending over and being directly secured to said com-- partment forming member, said resilient elementf being removable from said cabinet to permit detachment of said top member from the cabinet,

and said cabinet sub-top wall structure'being detachable from other walls of said cabinet and partment forming member and said refrigerant evaporating element -ofsaid refrigeratlng systemalong with's'aid sub-top wall structure as a unit from said cabinet 3. A refrigeratingfapparatus comprising in- -movable upwardly thereof to remove saidcomf combination, a cabinet'havlng a bottom wall, a

plurality of 'side walls, a top member and a subtop wall structure, a metallic member forming a compartment within said cabinet, said cabinet top member and said cabinet sub-top wall structure havingvregistering apertures therein providing an access opening to said compartment, saidv Ametallic member being rigidly connected to said cabinet sub-top wall structure in spaced relation to said cabinet top member, a refrigerating system associated with said cabinet, said system ineluding' a refrigerant evaporating .element extending over and being directly 'secured to said compartment forming member, said system also includ-- ing a device disposed adjacent a wall of said compartment forming member for controlling the new of refrigerant into said evaporating element, said'cabinet top member being detachable from said cabinet, and said cabinet sub-top Wall structure being detachable from other walls of said' cabinet and movable upwardly thereoiwhereby A said rigid connection of said compartment form- 'ing member therewith causes vremoval of said compartment forming member, said refrigerantevaporating element and said refrigerantiiow W control device of said refrigerating system along with said sub-top wall structure as a unit from, said cabinet. j

i ture having registering apertures therein providing' an access opening to said compartment, said metallic member being rigidly connected to saidcabinet sub-top wall structure in spaced relation to said cabinet top member, means including a resilient element extending between said members and engaging said top member for securing same upon said cabinet, said means being constructed and arranged to form the wall of said compartment access opening, a refrigerating system associated with said cabinet. said system including a refrigerant evaporating element extending over and being directly secured to said compartment forming member. said system also including a device disposed adjacent a wall of said compartment forming member for controlling the flow of refrigerant into said evaporating element, said resilient element being removable from said cabinet to permit detachment of said top member from the cabinet, and said cabinet sub-top wall structurebeing detachable from other walls of said cabinetf and movable upwardly thereof to remove said compartment forming. member, said refrigerant eikaporating element and said refrigerant flow corrol device of said refrigeratingsystem along with. said sub-top wall structure as a unit from said cabinet.

5. A refrigerating apparatus comprising in combination, a cabinet having a plurality of insulated walls, means forming walls of a storage compartment within said cabinet, an insulated wall of said cabinet having an opening therein registering with an open end of said compartment wall forming means to provide access to said storage compartment, a refrigeratingsystem' associated with said cabinet and including a refnigerant evaporating element Vdisposed in intimate heat -exchange relation with said storage compartment for cooling same, said refrigerating system also including a device mounted within one of said insulated cabinet walls adjacent said compartment wall forming means and connected 'with said refrigerant evaporating element for controlling the flow of refrigerant thereto, said compartment forming means having an aperture in a wall thereof adjacent said device, a cover normally closing the aperture in the wall of said compartment forming means and concealing said device, and said cover being removable from within said storage compartment to provide access to said device through said storage com-` partment access opening.

6. A refrigerating apparatus comprising in combination, a cabinet having a top, a bottom and a plurality of upright side insulated walls, means forming walls of a storage compartment within said-cabinet, said cabinet top insulated wall having an opening therein registerlng'with an open upper end of said compartment wall forming means to provide access to said storage compartment, a refrigerating system associated with said cabinet and including a refrigerant evaporating element disposed about said compartment wall forming .means for cooling said storage compartment, said refrigerating system '.also including a device mounted within one' of `said insulated upright side walls of said cabinet adjacent said compartment wall forming means and connected with said refrigerant evaporating .storage compartment access opening.

device, a cover normally closing the aperture in the side wall of said compartment forming means and concealing said device. and said cover being removable from within said storage compartment to provide access to said device through said 7. A refrigerating apparatus .comprising in combination, a'cabinet having a plurality of relatively thick. insulated walls, a metallic member forming walls of a storage compartment within said "cabinet, an insulated wall of said cabinet having an opening therein registering with an open end of said metallic compartment wall forming member to provide access .to said storage compartment, av refrigerating system associated with said cabinet and including arefrigerant evaporating element disposed in intimate heat exchange relation with said storage compartment for cooling same, said reirigerating system also including `a device mounted Vwithin one of said insulated cabinet walls adjacent said metallic compartment wall forming member and connect ed with said refrigerant evaporating element for controlling the ilow of refrigerant thereto, said metallic compartment forming member having an aperture in a wall thereof adjacent said device, a metallic plate normally closing the aperture in the wall oi said compartment forming member concealing said device and lying in substantially the same plane with said wall of said compartment forming member to provide a contlnuation of said wall, and said metallic plate being removable from said compartment forming member from within said storage compartment to provide access to said device throughsaid storage compartment access opening.

8. A refrigerating apparatus comprising in combination, a cabinet having a top, a bottom and a plurality of upright side insulated walls, a metallic member forming walls of a storage compartment within said cabinet, said insulated cabinet top wall having an opening therein registering with an open upper end of said metallic compartment wall forming member to provide access to said Storage compartment, -a refrigerating system associated with said cabinet and including a. refrigerant evaporating coil substantially surrounding said metallic compartment forming member and secured in intimate thermal contact therewith for cooling said storage compartment, said refrigerating system also including a device mounted within one of said insulated supright side walls f said cabinet'adjacent'said metallic compartment wall forming member and connectivertical plane with'said compartment forming member side wall and providing a continuation thereof, and said metallic plate being removable from said metallic compartment forming member from within said storage compartment to provide access to said device through said storage compartment access opening. l

9. A ref-rigerating apparatus comprising in combination, a cabinet having a bottom, top and a plurality of insulated upright side walls, said cabinet also including a metal frame structure and a metallic member forming-walls of afstorage compartment within said cabinet, `the top insulated wall .of said cabinet havingv an aperture therein registering with an open upper end of l said compartment wall formingmember to provide an access opening to said storage compartment, a refrigerating system associated with said cabinet 'and including a refrigerant evaporating element disposed in intimate heat exchange relation with said storage compartment for cooling same, said refrigerant evaporating element having refrigerant lconveying conduits connected thereto and extending -outwardly therefrom through one of said cabinet upright insulated Iside walls below said cabinet top insulated wall, a portion .of said cabinet insulated top wall, said metallic compartment wall forming member, said refrigerant evaporating element and the refrigerant conduits connected thereto being movable upwardly of other of said cabinet walls as a unit to remove same from said apparatus, said cabinet metal frame structurefhaving -a partthereof disposed in the path of elevation of-said refrigerantconveyingl conduits of said unit, and said frame part' being detachable from said cabinet frame.

structure to provide'an opening therein through which said refrigerant conveying conduits may and a metallic member forming walls of a storage compartment within said cabinet, the top insulated wall of said cabinet having an aperture therein registering with an open upper end of said compartment wallforming member to provide an accessl opening to said storage compartment, a refrigerating system associated with said cabinet and including a refrigerant evaporating element disposed in intimate heat exchange' relation with said storage compartment for coolingsame, said refrigerant evaporating element having refrigerant conveying conduits connected thereto and extending outwardly therefrom through 'one of said cabinet upright insulated side -walls below said cabinet topinsulated wall, means secured to said cabinet frame structure for sealing the refrigerant conveying conduits at the point of extension thereof through said cabinet upright side.

wall, a portion of said cabinet top insulated wall, said metallic compartment wall forming member, said refrigerant evaporating element and the refrig'erant conduits connected thereto being movable upwardly of other of said cabi-net walls as a unit to remove same from said apparatus, said cabinet metal frame structure having `a part thereof disposed in the path of elevationof said reirigerahtconveying conduits oi' said unit, and said sealing means and said frame part being detachable from said cabinet frame structure to provide an opening therein/through vwhich said refrigerant conveying conduits may pass during elevation of said unit from said apparatus.'

ll. A refrigerating apparatus comprising sin combination, a cabinet having ahbottom, top and a plurality of insulated upright side walls, said cabinet also including a metal frame structure and a metallic member forming walls of a storage compartment within said ,cabinet,the cabinet#v `YVmetal frame structure comprising a vertically disposed post forming portion and a horizontal portion thereabove, the top insulated wall of said cabinet having an aperture therein registering -with an open upper end of said -compartment wall forming member to provide an access opening to said storage compartments refrigeratingA system associated with said cabinet andinclud- 5 ing a refrigerant evaporating coil substantially,

surrounding and being directly secured to said compartment wall forming member for cooling said storage compartment, said pipe coil having refrigerant conveying conduits connected thereto and extending outwardly therefrom through onev of said cabinet upright insulated walls and through an opening in a wall of said postforming portion of said cabinet metal frame structure, a' portion of said cabinet insulated top wall, said metallic compartment wall forming member,

. said refrigerant evaporating pipe coil and the refrigerant conduits connected thereto being movable upwardly of. other of said cabinet walls as a unit to remove same from said apparatus, said lo' horizontal portion of said frame structure above the opening in said post forming portion thereof being providedv with an open part, means normally closing lthe opening in said post forming portion of said frame structure, means normally ,u closing the open part in said horizontal portion of said frame structure and providing a continuation of said frame structure across said open part thereon-,and both of said means being detachable from said cabinet to provide a vertical 3 slot in the metal frame structure thereof through which the refrigerant conve g conduits may pass during elevation of said unit from said apparatus. 4

12. A, refrigerating apparatus comprising in u combination, a cabinet having a bottom wall, a

v plurality lof side walls, a top memberanda subtop wall structure, a metallic member forming a compartment within said cabinet, said cabinet top member and said cabinet sub-topl wall structure having registerlngapertures therein provid- A ling an access opening to said compartment, said metalhc member being rigidly connected to said cabinet sub-top wall structure imspaced relation to said cabinet .top member, means including an element of low heat conductivity extending between said members and having a resilient edge portion engaging said top member about the ap-l erture therein, said means being .constructedD and arranged to form a non-hygroscopic wall of said compartment access opening, a refrigerating system associated with said cabinet and including a refrigerant evaporation portion extending along said compartment forming member in intimate thermal heat exchange relationship therewith,

said element beingremovable from said cabinet to permit detachment of said top` member from said cabinet, and said cabinet sub-top wall structure being detachable from other walls o'f' said cabinet and movable upwardly thereof to remove said compartment forming member and said refrigerant evaporating portion of said refrigerating system along with said sub-top wall structure as a unit from said cabinet.

13. A refrigerating. apparatusy comprising in combination, a cabinet having a plurality of insulated walls, said cabinet also-including a frame structureV and a member forming walls of a storage compartment within said cabinet, one of the insulated walls of said cabinet having an apl0 erture therein registering with an opening in said 4 net and including a refrigerentevaporating portion disposed in intimate heat exchange' relation with said storage compartment for cooling same, said refrigerant evaporating portion having refrigerant conveying conduits connected thereto-- 8 asuntos move same from said apparatus, said 'cabinet frame structure having a part thereof disposed in the path of movement of said refrigerant conduits of said unit, and said frame part being detachable from said cabinet frame structure to 5 provide an opening therein through which said refrigerant conveying conduits may pass during removal of said unit from said apparatus.

WILFORD H. TEETER..