US1825731A - Refrigerating apparatus - Google Patents

Description

H. B. HULL @sin 6, i931.

INVENTOR ATTORNEYS Oct., 6,1931. H. E. HULL 1,825,731

REFRIGERATING APPARATUS I Filed Aug. 25, 192el 5 sheets-sheet 2 ATTORNEYS Oct. 6, 1931. H. B. HULL 1,825,731

REFRIGERATING AfiARATUs w Filed Aug. 215, 192a 5 sheets-'ShevaA s INVENTw I l Ot 6, WSL I I H, B. HULL v 3,82597331 REFRIGERATING APPARATUS Filed Aug. 25, `192e 5 sheets-sheet 4 IZI ' INVENTOR l ATTORNEYS Oct. 6, 1931. A H B, HULL A1,825,731

REFRI-GERATING APPARATUS Filed Aug. 25, 1928 5 Sheets-Sheet '5 Jg. f3

'37 ZW- M, @da

' ATTORNEYS i Patented Oct. 6, 1.931'

UNITEDsTATEs PATENT' omer.-

HARRY B. 'HULL 0F DAYTON, .ASSAIGNOR TO FRIGIDAIRE CORPORATION, 0F

ad .l .heat insulated cold compartment and a sepo arate compressor unit ina machinery com# partment and means whereby both these units and their operative interconnections may be v easily and quickly removed from the cabinet or replaced therein without disturbing the interconnections between said units. By this invention therefore it is possible to com' pletely assemble the apparatus and test the same outside of and independent of the cab# inet, and then move said units into their 2o proper compartments in the cabinet without again disassembling or disconnecting said apparatus. A nother object of this invention is to pro vide a refrigerating apparatus in whichv portions of the ref-rigerating system may be removed from the'cabinet `for inspection or repair'while other portions ofthe reinigenating system .remainA in the cabinet without disconnecting the refrigerant linewhich con` f 3a nects said parts.

A more specific Objectis-to accomplish the above results and yet leave the heat insulating wall between. thefcold, and compressor compartments in its-xed place in the cabinet, whereby said wall may b e more efectively sealed in place to prevent passage of heat into'the cold compartment.

F urthersobjects and -advantages off-th following description, reference being had to the accompanying drawings, wherein preferred forms of embodiment of the presentV invention are clearly shown.

Y VIn thedrawings f C Fig. l is a vertical section, on line 11 o f Fig.*3 through a refrigerator built accordingto this invention.

Fig. 2 s'lrowsthe two refrigerator units and their interconnections. (in dotted lines) 5) placed on astand (in full-lines) which is DAYTON, omo, .A conroRArIoN or' DELAWARE .mamme 'APPARATUS l ap'pnaunn mea Augus't 25, ms. vsama In. scams.

used to support the units while they are being moved to position in the cabinet;

- Fig. 3 is a front elevation of the refriger;

ator but showing the movable panels removed. This ligure also shows in dottedv lines the overhanging stand shown in Fi 2; Fig. 4 Villustrates on an enlarged sca e a section von line 4 4 of F ig'. 1;

F ig.` 5 is a view similar to Fig. 1,.but shows a modification wherein the supporting stand is adapted to be moved into` the cabinet and forms part of the complete refriger- Fig. 6 is a side elevation of the stand and refrigerator units' shown in Fig. 5, when they are removed from the cabinet.

Fig. 7 is a section on line 7-7 of Fig. 5;

Fig. 8 lis va front elevation of a further modification showing' the central panel covering the pipes and the lower panelcovering the compressor compartment removed;

' Fig. 9 is a section on line 99 of Fig. 8, but shows the central 'panel in place and the doors closed.

Fig. 10 is a vertical cross sectional view of an apparatus embodying features of my inventicin.

i' F ig 11 isanelevation'of a portion of the refrigerating apparatus"Y shown in'RFig. 10, i v Y. Y the apparatus being placed on a stand ready for placing the refrlgerating system adjacent the cabinet for final assembly at the place 'of use or` at any other convenient place;

Fig. 12 is-a diagrammatic view of the refrigerating system shown in Figs. 10 and 11;

Fig. 13 an elevation of the lower portion of the rearportion of the apparatus present invention Will be apparent from theshown in Fig. 10;

VFig. 14 is aside elevation of the base for 90 the refrigerant liquefying unit;

- Fig. 15 is an end elevati-0n ofFig. 14;

16 Vis a cross sectional art ofa re- 'igerat' apparatus ht y modified,A whichjellillodies features o AYmy invention; and

ried to and placed adjacent the cabinet for.. 1...- y

the final assembly partly or wholly within the cabinet. Similar reference characters refer to similar parts throughout the. several views of the drawings'. l Referring to the drawings, l() is the outer cabinet which may be made of wood or any other suitable material. The lower ortion of the cabinet is partitioned off an forms the compressor compartment 1l for the location of the compressor unit 12, comprising in the embodiment shown an SO2 compressor vand condenser,- 4the latter of which receives the compressed refrigerant from the comressor, condenses and stores the liquid rerigerant in the well known manner. The

electric motor for operating the compressor,A

and the various automatic mechanisms connected therewith are also located in the com- 'partment 11. I

The u per part of the cabinet is provided with su stantial heat insulating walls 1,5. In the form shown in Figs'. 1 to 4 the upper heat insulated compartment is divided by the partition walls 16 into a central cooling compartment 17 and a food compartment 18 on each side thereof. v'Ihe central comparti ment 17 contains the cooling unit 20, which in the embodiment shown, comprises a header tank 23v and a series of evaporating coils 24 in which the liquid SO2 is evaporated or boiled and thus absorbs heat from the air circulating around thel coils.` The air within the upper heat insulated compartment circulates downward in the central cooling compartment 17 and upward through the two food compartments 18, again entering compartment 17 at the top thereof. The liquid SO2 passes from the ythrough a duct 21, and theJvaporized SO2 passes back from the cooling unit 20 to the compressor 12 through thek duct 22. These ducts 21 and 22 may be called the operative interconnections between the compressor unit 12 and the cooling unit 20, or may be i called the refrigerant line.

panel'26 which permits the compressor unit to pass through the opening into the compressor compartment when the panelis removed. These two removable panels 25 and 0 26 overlap one another as clearly shown in Fig. 1.- The two ducts 21 and 22 are looped around as clearlyy shown inthe drawings so as to pass from com artment 11 to compartment 17 immediate y in front of the cross frame member 30 of the cabinet. Prefercompressor unit 12 to the cooling unit 2O ably this cross member 30 is grooved to r'e"v ceive the ducts 21 and 22, so that the removable panel 25 will lie' flat up a ainst said member and thus eilectively sea the compartment 17 from the outside temperature.

entirely completed and then the compressor y and cooling units with their interconnections in assembled form may be inserted in the cabinet by removingv the panels 25 and 26. In order to facilitate the placing of the refrigerating mechanism in the cabinet a stand 40 is preferably provided which supports the cooling unit approximately at the level of the floor of the cooling compartment and the compressor unit approximately at the level of the floor of the lower compressor compartment. rIhe units are placed upon the stand 40 approximately in the relative position shown' in Figs. 2 and 3, the ducts 21 and 22 looping around the end. of the overhanging top support 41 (see Fig.3) The refrigerating mechanism or system after being placed on the stand 4() may be moved adjacent the cabinet to a position convenient for inserting the units within the cabinet. It will now be clear that both units with their interconnecting ducts may be easily moved from the stand 40 over into their respective compartments in the cabinet, the ducts 21 and 22 entering the vertical groove provided therefor in the member 30. Preferably some suitable sealing material, for instance hydrolene, is used to completely fill up the space around the ducts in said groove, after which the panel 25 is secured in place by screws extending into the cross members 3() and 32 and thus covers the groove. The panel 26 is next secured in place by one or more lugs 45 at the bottom and one or more screws 46 at the top extending-into the metal angle clip 47 in turn secured to member 30.` In the vdrawings the removable panel v25 is shown provided with a small hinged door 50 which permits access to the small drawers 51 located at 4the center of the expansion coils 24. 'Ihe-two food compartments 18 have separate doors 52 provided therefor as clearly shown in Fig. 3. Since the eva orating coils 24 are considerably coldery t an any other'surface within compartments 17 and 18, moisture from the circulating air will be condensed upon said coils 24 until the relative humidity/ is brought so low that all other surfaces withinthese compartments will remain dry. The coilsv24 are -provided with drip troughs 53, which collect the condensed water and discharges it throutglh the drain pipe 54. j

In le modlcaton'shown in Figs. 5, 6 and l .7 the refrigerator cabinet is slightly modified inorder to permit the supporting stand 40 together with the'cooling unit 20 and the compressor unit 12 with their interconnections to be housed withinthe cabinet. The stand 40', is s o constructed that the upper support 41 for the cooling unit 20 is held by a single u right member 60 and has piv- -oted. theretot e brace member 61 which' aids f in supporting the overhanging weight of the cooling unit 20. The units 12 and 20 are ar- 'ranged in substantially the same relative positions as in the modifications described above. The hstand is preferably provided with rollers or casters 62. to render the assembled units moreeasily portable when outside the cabinet, as well as tol facilitate the movement of the stand and units-and into or out of the.

cabinet. In this modification the floor 31 of the cooling compartment 17 is cut away as clearly shown in Figs. 5 and 7, to permit the passage of the upright member 60. The block 66 is rigidly attached to the removable panel' 65 and isremovable therewith. The removable panel 67 for the compressor compartment is held in pl'ace at the bottom by the lugs 68 and at the top is screwed to the small metal angle clips 69 secured to a stationary part of the cabinet on either side-of the removable panel 65. The top of panel 67 laps over the lower edge of panel 65 thus holding the lower edge of panel 65 rigidly in place (see Fig.

- 5)'.A The top of panel 65 is `held in place by being screwed to the cross member. 32, as in t 'A the previously described modification.

lt will now ybe clear that by removing panels 67 and.65, the stand 40 together with the refrigerating units 2O and 12 in assembled form may be movedinto place in the cabinet. As soon'as the'short leg 63 for the upper support 41 rests uponthefloor 31A "and the brace 61 is released from the lug 64 and allowed to swing down alongside of upight (see Fig. 5). This permits the upl right 60 to be-moved snugly up into the recess in the door 31 provided therefor.i The ducts 21 and 22. lie immediately in front of upright 60 as clearly shown in Fig. 7 yThe block 66 has arecess 7 0 cut therein for the ductsV 21 and 22, which recess is preferably sealed up with suitable'sealing material after Vthe units. are moved into the cabinet' and the panel y has been securedv in place. Whenitisdesired to remove the refrigerating units from the cabinet it isnecessary-only to break the sealingl material around the :recess 70 wand remove the panels 65 and 67 after which the standflO- with the units may be rolled out. It is thus clear that repairs maybe readily madeor newunits substituted at any time without either marring the cabinet anyway or disassemblingthe refrigerating apparatus. v Y Y -d' v Y In the modification shown in Figs. 8 and 9 the cooling unit 20 is located in a compartment provided therefor in the upper left hand cornerof the cabinet when viewed as shown in Fig.' 8. The compressor unitI 12 is located in the lower compartment 11 as in the two modiications above described. A small -food compartment 81 is located between the compartment 80' and the compressor compartment' 11. A large food compartment 82 occupies the space on the right side of theY cabinet above the compartment 11. Of course rthe compartments 80,81 and 82' are provided with heat insulating walls and suit'- able partitions between the compartments vt`o give the desired convection currents for thew circulation of the air past' the cooling unit cabinet is grooved out at 86, as clearly shown in Figs 8 and 9, to provide a passageway for the ducts 21 and 22 from the compartment. 11 Ato the com artment 80. A removable coverpanel 87 ts over the grooved out portion of the post 85 and screwed to the post 85 (see Fig. 9). Fig. 8 shows the cover panel 87 removed and the doorspto the compartments 80, 81, and 82 allopen'. It will be obvious from Fig. 8 that thetwo units 12 and in o erative form may be moved into or out of t e cabinet in a manner .similar to that 9 described for the previous modications. 0f

course it is preferable that the space around the ducts 21 and 22 where they pass from the groove 86 into the compartment 8O be sealed with some suitable material such as `hydrolene. After the refrigerating apparatus is in its proper position-in the cabinet, the

. cover plate 87 and the cover panel for compartment 11 aresecured ini place. The duct 54 is the drain pipe for the moisture conldensed upon the cooling unit 2O but it is not attached to said unit and is not removable with the refrigerating apparatus.

In all three of the modiiications described herein other-ducts `or connections such as thermostat lines or 'pressure ducts may parallel the ducts 21 and 22 in order to pass from the cooling compartment to the mechanism compartment. Preferably all of the ducts are of somewhat flexible tubing to permit them to move to their exact positions when moving the refrigerating apparatus to within the cabinet. f

In general, another refrigeratingV apparatus (see Fig. 10) embodying features Vof my .invention comprises a cabinet generally designatedas `in whicha refrigerating sys-4 tem may be inserted. Ingeneral, the refrigerating system preferably comprises sev- 'eral members including. an-evaporator generally designated as-121, a refrigerant liqueying unit generally designated as 122- and .a system operation `control mechanism generally designatedas 123. These members of the .refrigerating system are connected by 20 and through the food compartments. In '8f3 this modification the central post 85 of the flexible lines which permit the insertion of these memberswinto thecabinet independently of each other without disconnecting the lines. The lines comprise one form of a rel-frigerant 124 and an electric line 125.

. 124. The liquid refrigerantin pipe 128 is expanded by means of an expansion valve 129 before entering coils 130 of the evaporator 121. After passing through the coils 130, the refrigerant returns to the 'lique fying unit through pipe 129e of the refrigerant line 124. Preferably the refnigeraut returns to the compressor 131 of the refrigerant liquefying unit 122 and, preferably, the refrigerant enters the crankcase of the compressor."` The refrigerant, after being compressed in the compressor 131 passes to a condenser 132 where the refrigerant is liquefied and is stored in the liquid receiver 127 for use in the evaporator' 121. The refrigerant liquefying unit also includes a motor 133 which drives the compressor 131, for instance by means of the belt 134. The electric motor 133 is started and stopped by means of the snap switch 135 of thesystem control cdevice 123, which switch 135 is operated by the expansible bellows 136 operating through a lever mechanism'137 in accordance with temperature conditions in a thermostatic bulb 138. The snap switch 135 stops and starts the motor through the medium ofv the electric line 125. In Fig. 12 these parts are shown diagrammatically mounted on the stand 139 for carrying the refrigerating system to the cabinet. Loops 140 are shown in the refrigerant line and in the electric line which are intended to show dia grammatically that these lines are of sufficient length to permit the members of the refrigerating system to be moved relatively to each other in order that they may be installed in the cabinet 120 without disconnecting the A`lines but with a relative movement to each other necessary in order to install the parts properly. In

actual practice the lines need not be looped since an actual loopA might cause a kink. As

shown in Fig. 10, the refrigerant liquefying nP unit 122 may be placed either in front or behind the cabinet without disturbing the evaporator 121. This is accomplished "because of the length of the refrigerant and electric lines which are shown looped' at 140 i in Fig. 1. The dottedrepresentations of the refrigerant liquefying unit 122 indicate positions which the unit may be placed in either during finalfassembly or after final assemblyJ l,for adjustment of the unit or for Arepair of the same. v -1 The stand 139 may be'placed immediately behind the cabinet 120 to place the refrigerant liquefying unit somewhat in the position shown in dotted lines in Fig. 10. That is, the stand wouldbe placed with its longitudinal axis parallel with the back of the cabinet land with the refrigerant liquefying unit immediately behind its proper compartment. The evaporator v121 may then be unbolted from the stand 139 and may be placed in the upper compartment of the cabinet in the position shown in Fig. 10. The refrigerant liquefying unit may then be unbolted from the stand and may be inserted into the cabinet in the position shown in full lines in Fig. 10. The details of these parts may bevaried, but as a specific embodiment, the evaporator 121 is mounted on an insulated platform 141 by means of metallic loops 142 which depend from the insulated platform 141. Within the loops 142 are ice tray sleeves 143 for receiving the ice trays 144. A suitable front cover 145 is positioned in front of the metallic loop 142. Around the sleeves 143 is wound the coil 130 for the passage of the expanded refrigerant. The expansion valve 129, as shown herein, is attached to' the back of the evaporator 121 and may be of any suitable type. In this specific embodiment the valve is of the diaphragm type in which one side of the diaphragm is subjected to the pressures of an artificial atmosphere maintamed in a bulb 146 in order to prevent frosting of the diaphragm. The other side of the diaphragm is subjected to refrigerant pressures so that the valve maintains any desired pressures in the coil 130 of the evaporator. For convenience, the metallic loops 142 are used to support the evaporator on the stand 139 and when so supported, the evaporator is secured to the stand by means of one or more bolts 147 passing through the insulated platform 141 and holding the evaporator securely to the stand 139. T he refrigerant liquefying unit is also preferably bolted by bolts to the other end of the stand 139 for convenience in effecting the final assembly. When the units on theystand 139 are to be carried in a manner in which damage may be caused to the units a suitable box may be inverted over the units, and the edges of the box may be nailed to the stand `139. Thus the units can be carried without danger of yaccidental damage to the arts.

The system operation control mechanism 123 containing the switch 135 may be mounted along with the evaporator, if desired. In this particular embodiment the switch 135 is mounted on the top of the insulated platform 141 together with the leverl mechanism 137 and the bellows 136. These are all encased in a suitable cover for` protecting the parts as indicated in Fig 10. The thermostatic bulb 138 is mounted inside of the cabinet 120 adja- Tec clamped together by means of clamps 151 forV ,.5 convenience in handling and for preventing in the lines.

The refrigerant liquefying unit, as aspeciic embodiment, is mounted on a platform. 1n general the platform is made of side metaliic angle -irons 155 joined by cross metal members 156 (see Figs. 13,14 and 15 The liquid receiver 127 is a tubular mem r and is -also used to vjoin' the side members 155. The cabinet 120 is provided with angle irons 15'? having notches 158 cut therein. The flanges of the members k155 thus rest on vthe horizontal iianges of the members 157 Aand the platform is secured in place by passing a rod through vnotches 158a in the side pieces 155 and the notches 158. r The other end of the member155 is secured by clamps 159 hooked over the cross pieces 156 and secured by means of hook bolts 160 hooked in proper holes in the members 1157. vThus merely by loosening the nuts 161 of the bolts 160, the re- 'frigerant liquefying member,122 may be re- Y moved from the cabinet.

The exact details of the refrigerant liquefying member may be varied, but. as herein shown, it includes vthe motor 133 and compressor 131 mounted on a flexibly supported platform162 (see Fig. .10) in 4such a manner aste' permit thecompre'ssor and motor to vibrate freely about the center of oscillation without greatly disturbing the remainder of theapparatus. This flexible mounting may be clamped down when the ap aratu's is to be carried.. Thefcondenser 132V Asee Fig. 11) is mounted over thereceiver 127 and is preferably provided with vertical fins 163111 order to increase the heat exchanging area. The connections between the compressor and condenser are partly looped, as at4 164, in order vto permit the proper'play of the compressor in 'relation to the condenser. in Fig. 10 .the evaporator;

sertible through .the top, preferably by lifting oft' the' cover 170 of the cabinet 120, and thenlowering the evaporator onto'the top 171 ofthe frame of the cabinet'. However, the vevaporator may be made -insertible through any other portionof the cabi-net. In Fig. A15 theevaporator 12M is shown 1nsertible through the back of the cabinet 120e. In

55 this case the insulated platform 141e forms f part of the back of the cabinet. As shown m Fig. 17 the evaporator 121@ is mounted on the .stand 139g by any suitable means such as. by

. placing blocks 174 under loops 142111, and by bolting the unit to the stand. Brackets 17 5 extending from the insulated platform141a f support the unit 121a. l In the manufacture of the refrigeratmg apparatus, the cabinet may be manufactured 35 separately from the n refrigerating-Y system.

is shown as in- The refrigerating system ispreferably manufactured, assembled, tested and mounted on stand 139 independently of the cabinetl The refrigerant is charged into the system before is made ready for'operation with the exception of installation in the cabinet. The final. assembly of the refri erating systemin the cabinet maybe made y relatively unskilledlabor, since no diiiicult connection of the re= frigerating system need to be made in thelinal assembly. For example, at the iinal assembly, the evaporator 121 ymay be removed `from the stand 139 and maybe lowered into frigerant unit. Thus it is apparent that this r is a refrigerating apparatus which can be completely assembled and tested independently of the cabinet, and then moved into proper compartments ofthe cabihet without again disassembling or disconnecting the refrigerating apparatus.

While the form of .embodiment of the iiivention as herein disclosed, constitutes va preferred form, it is to be understood that other forms might be1adopted,all'comin'g within the scope of the claims which follow.l

What is claimedis as follows: 1. In a refrigerator, a cabinet having an insulated partition dividing same into accoling compartment and a machine compartment, aremovable refrigeratmg device comprising a cooling unit in one ofsid compartments, a refrigerant medium circulating unit in the other of said compartments,operativey interconnections between said units, said cabinet includingmovable wall means permitting the withdrawal of'said units from the -1-15.

the partition while the operative interconcabinetin planes substantially parallel with nections therebetween are n laintained.`

2. In a refrigerator, a cabinet having a partition dividing sam'ejinto a compartment containing a 'coo1ingunit and a 'compartment containing Aa compressor-'condenser unit, operative interconnections between said units looped around said partition, said cab- 'I inet including movable wall -meanspermitting' theinsertion in said cabinet of 'said units and interconnections in' assembled 3. In a refrigerator, a cabinet having a partition dividing. same into a compartment containing a'cooling- 'unit and a compartinal assembly in the cabinet and the System, 7 0 l ment containing a refrigerant medium circulating unit, operative interconnectionsbetween said units extending across the edge of said partition, said cabinet including movable wall means permitting the insertion in said cabinet of said units and interconnections in assembled form.

4. In a refrigerator, a cabinet having a partition dividing same into a compartment containing a cooling unit and a compartment form, land removable panel means for said openings. y

6. The combination with a refrigerator box having an insulated partition dividing same into a cooling compartment and a machine compartment; of a slib-assembly in cludinga cooling unit, arefrigerant medium circulating unit, operative interconnections between said units. 'and a stand having means extending along the edge of the partitionl and into4 said compartments for supporting said units within their respective compartments. f

7. The combination with al refrigerator box having a partition wall dividing said box into a-cooling compartment and a machine compartment; of a sub-assembly including a cooling unit, a refrigerant medium circulating unit, operative interconnections between said units, and a stand having means' adapted to extend into the machine compartment for supporting the circulating unit therein and means extending into the cooling compartment for supporting the cooling unit in the cooling compartment, the wallsof the compartments having openings permittinglthe insertion in said compartments of said subassembly in planes substantially parallel with the partition.

8. In a refrigerator, a pair of separated chambers, a compressor element and a receiver element in one. of said chambers mounted independently of the wall between the chambers a cooling element in the other of said chambers, an unbroken pipe extending between .said receiver element and said cooling element, an unbroken pipe extending betweenV said cooling element and said compressorelement', both of said pipes extending through the wall betweenY the chambers, and means whereby all of said elements maybe removed as a unit from said refrigeiator, free of the said wall, while maintaining said pipe connections intact.

9. In a refrigerating apparatus, thecombination of a refrigerator box structure having an upper cooling compartment and a lower machinery compartment, an evaporator disposed in the cooling compartment, a compression mechanism disposed in the machinery compartment, a condenser, and a common supporting structure for the evaporator Y and the compression mechanism, said supporting structure together with the evaporator and the compression mechanism being removable as a unit from the refrigerator box structure.

.10. In a refrigerator, a cabinet having an open front, a'n insulating wall in said cabinet separating the interior of the same into two compartments and having anv edge exposed at said front, a door for each compartment cooperating with said exposed edge of said f wall to close said open front, a cooling unit removably secured in one of said chambers, a heat dissipating unit removably secured in the other of said chambers, tubing connecting said units, a'notch in said exposed edge of said wall for the passage of said tubes, and aremovable filler block in said notch embracing the walls' thereof and said tubing, said doors contacting against the outer edge of said filler block when in closed position.

11. In a refrigerator, a cabinet having an open front, an insulating wall in said cabinet separating the interior of the saine into two compartments and having an edge exposed at said front, a door for each compartment cooperating with said exposed edge of said wall to close said open front, a cooling unit removably secure in one of said chambers, a heat dissipating unit removably secured in the other of said chambers, tubing connecting said units, a notch in said exposed edge of 'said wall for the passage of said tubing. and a removable filler block in said notch embracing the walls thereof and said tubing, said doors contacting against the outer edge .of said filler block when in closed position.

12. In combination, a refrigerator cabinethaving an insulated partition dividingthe same into upper and lower compartments, a removable I refrigerating device comprising -cooling means in one of said compartments,

heat dissipating means in the other compartment, operative interconnections between said cooling and heat dissipating means, said cabinet including movable wall means permitting the withdrawal of said cooling and lieat dissipating means from the cabinet in planes substantially parallel .with the parti- .tion while maintaining the operativeinterconnections therebetween.

13 In combination, a vrefrigerator cabinet having upright walls and an insulating partition dividing the cabinet into. upper and lower compartments, a removable refrigerating device comprising cooling means in one of sald compartments, heat dlsslpatmg vmeans inv the other of said compartments,-

operative zinterconnections between said cooling and lheat dissipating means, the front wall ofthe cabinet having removable portions for permitting withdrawal of said cooling and heat dissipating means from their respectivev compartments in planes sub-' stantially parallel with the partition while maintainin the operative interconnections between said cooling andV heat dissipating partments and a refrigerant medium circulating unit in the other of said compartthe edge,

'ments, operative' interconnections vbetween said units extendingcacross the edge of said,

partition, panel Vmeans covering the edges' ofthe partition and the interconnection at said panel means being removable permitting the. withdrawal of said device "with the Vinterconneations in assembled 15, In a 'refrigeratorl` a cabinet having a cooling compartment and a machine com-v partment; anda-sub-asseinbly including a heat` absorbing element, aV Vheat dissipating element operat1vely connected with the heat absorbing element, and a stand 'havings-means for supporting Athe heat absorbing element 1n the cooling compartment and for supv porting the heat dissipating'elementin the machine"compartment.-l

including a heat absorbing` element, a heat dissipating element, and a stand," having means for supporting the heat absorbing ele ingelement and afheat dissipating element operatively connected with Athe heat-'absorbingelement, and a common support extendment in the cooling compartment and lfor supportingthe heat dissipating element outside the said. compartment. I

`17.--In a refrigerator, a cabinet 'ha g a partition -wall dividing same into a coo ing compartment 'and a machine compartment; and a subassembly including a heat absorbing on each sideof the partition and having means for supporting the heat absorbing element in the cooling compartment and for supporting the heat dissipating element in the machine compartment.

18. In a self containedlmecha 'cal refrigcompartmerfts open at one side; a unitary mechanical refrigerating apparatus includ.

Verator a cabinet Vhaving superposed.`

ing a frame entirely supporting an evapora- -torand machinery in different elevations for .association with diiferent compartments, said apparatus being insertible laterally into said cabinet, and a movable closure for closing the opening leading to the refrigerated compartment. Y

19.' The combination with an insulated refrigerating compartmentfhaving a horizontally disposed wall and a door opening, of

a notch projectingintoV the horizontally disposed wall immediately adjacent the aforesaid door opening, a machine compartment 'arranged externally of the refrigerating compartment beyond the horizontally disposed wall, a machinery base arranged within the machine compartment, arefrigerant condensing unit secured to and supported by the latter, a refrigerant evaporating unit supportcarrying the aforesaid base and projecting into the interior of the refrigerating compartment throughthe notch in the horizon-l tally disposed wall, a refrigerant evaporating unit in the interior of the refrigerating compartment connected 'to the aforesaid support,

and means forcirculating refrigerant fluid Sable from the 'refrigeratingl and machinery compartments by movement in planes parallel to the aforesaid horizontally disposed parfrigerating compartment having a plurality -of vertically disposed walls closed by horieogfrhe vcombinan@ with an manned re-v zontally disposed walls at opposite ends of the latterf a machinery compartment far-- ranged externally of the refrigerating com- 'partmentbeyond one of the aforesaid hori- 16. In a refrigerator, a cabinet having ak Y Y zontally disposed walls, a' refrigerant con-f cool-mg, compartment; and Va sub-assemblydensing-unit disposed inthe machinerycompertinent, a refrigerant evaporatingnnit dis- *v ment, said refrigerant condensing. and evaporating units being connected to the support adjacent the opposite ends thereof.`

21.7In a refrige tor, a pair of chambers provided with an insulating wall therebetween, compressing, condensing and` receiving means 'in one of said chambers, a cooling element in the other of'said chambers, a notch in an exposed edge of said Wall, an unbroken pipe connecting said means to said cooling element, another unbroken pipe `connecting said cooling element to said means, said pipes .passing through said notch, and means closing said notch. 22. Ina refrigerator, a cabinet, a wall therein separating the interior thereof into two chambers, compressing, condensing and receiving means 1n one of said chambers se cured to a. unitary removable baseyatcooling unit in the other of said chambers, an opening ,insaid wall, a tube passing through said opening connecting said means to said cooling unit, another tube passing through said opening connecting saidvcooling unit to said means, and means closing sa-id opening removablenfrom said wall 1n the direction of the plane thereof whereby said units may be removed from said vcabinet without disconnecting said tubes.

In testimony whereof I hereto aix my signature.

HARRY B. HULL.

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