US2031450A

US2031450A - Refrigerator

Info

Publication number: US2031450A
Application number: US22763A
Authority: US
Inventors: Leonard W Atchison
Original assignee: General Electric Co
Current assignee: General Electric Co
Priority date: 1935-05-22
Filing date: 1935-05-22
Publication date: 1936-02-18
Anticipated expiration: 1953-02-18

Description

Feb. 18, 1936 L. W. ATCHISON REFRIGERATOR Filed May 22' 1935 2 Sheecs-Shee'rl 1 Feb. 1s, 1936.

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REFRIGERATOR y Filed May 22, 1955 2 Sheets-Sheet 2 F'QZ 69 g 7d .47

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Leonard Atch i 5011.

Attorne'g .Y

Patented Feb. is, 193e PA'rENrv OFFICE REFRIGERATOR Leonard W. Atchison, Schenectady, N. Y, assignor to General Electric`Y Company, a. corporation of New York Application May'zz, 1935, serial No. 22,763

17 Claims.

My invention relates to refrigerators.

Refrigerators, and especially those designed for domestic use, ordinarily'include a heat insulated cabinet and a refrigerating machine associated therewith. Such a refrigerating machine ordinarily includes a refrigerant evaporator and a refrigerant `circulatory unit. The refrigerant circulatory unit may be a part of the refrigerant.

'liquefying unit which, in compression type refrigerating machines, includes a refrigerant compressor driven by an electric motor, or the like, and a condenser in which the compressed liquid refrigerant is liquefied. Thecabinet of the from the cabinet in order to facilitate the assembly and repair thereof. AThis separable refrigerating machine should be arranged in such manner that it may be charged with refrigerant at the factory,or other place of assembly, and the refrigerant connections between the various elements made in a permanent form at that time. The cabinet should be arranged to receive the refrgerating machine in such manner that the refrigerant connections need not be altered when I the refrigerating machine is mounted on or dismounted from the cabinet.

It is an object of my invention to provide a refrigerator, of the type described, having an im'- proved arrangement of the elements of the refrigerating machine therefon'in order that the refrigerating machine may be quickly and easily mounted on or disinounted from. the cabinet of the refrigerator.

It is a further object of my invention to pro- I vide an improved separable refrigerating machine for a refrigerator, of the type described, which forms a strong, compact unit for purposes of shipment when separated from the cabinet, or the like, used therewith.

Further objects and advantages of my invention will become apparent as the following description proceeds and the features of novelty which characteiize'my invention will be pointed' out with particularity inthe claims annexed to and forming a part of this specification.

For a better understanding of my invention, reference may be had tothe accompanying drawings in which Fig. 1 is' a side elevation, partly in section, of a refrigerator embodying my invention; Fig. 2 is a front elevation of the separable re- 5 frigerating machine shown in connection with the refrigerator in Fig. 1; Fig. 3 is a side elevation, on reduced scale, 'of the separable refrigerating machine shown in Figs. 1 and 2, the parts thereof being arranged in position for shipment; and Fig. 10 4 is a fragmentary perspective view of the pivotal frame connection of the refrigerating machineshown in Figs. 1, 2 and 3.

Referring to the drawings, in Fig. 1 I have shown a refrigerator embodying my invention ini5 cluding aV cabinet and a refrigerating machine. The cabinet includes a rectangular outer sheet metal shell It) having a rectangular opening in the top thereof surrounded by a vertical ange I I. The shell I is provided with a horizontal im` 20 perforate sheet metal partition I2 therein which extends entirely across the interior of the lower portion of the cabinet. The front and rear edges of the partition I2 are provided with downwardly extending flanges I3 and I4, respectively, which 25 are welded, or otherwise secured, to the front and rear wall of the shell I0. The partition I2 divides the space within the rectangular shell I0 into an upper cooling compartment I and a lower machinery compartment I6, respectively.

cloth band 2l. p 'Ihe front and rear walls of the 40 outer shell I0 extend downwardly only to the bottoms of the flanges I3 and I4, respectively, of the horizontal partition I2. The lower edges of the sides of the shell I0 are folded back on themselves at 22, thus reinforcing the lower side walls of the shell I0.

The cabinet'thus formed is supported upon and reinforced by a base 23. The base 2 3 is made of ya rectangular frame formed by horizontal angle irons 24 supported on legs 25, the base being 50 surrounded on the front and -sides by a metal inopboard 26 secured to the base. The rear of the base 23 is open. The mopboard 2E has an inset portion 2'I in the front thereof which permits cooling air to enter the machinery compartment I6 at 28. I'he horizontal angle irons 24 are welded, or otherwise rigidly secured, to the legs 25. 'I'he front, rear, and bottom ofL the machinerycompartment I6 are thus open. The front wall of the machinery compartment I6 is covered by a removable rectangular panel 29, which extends entirely across the same. When the door 20 and the panel 29 are closed, the front of the cabinet thus presents a smooth surf face which may be easily cleaned and which has a pleasing appearance.

The cabinet base construction, described above, is not my invention, but is the invention of Ralph E. King, and is described and claimed in his application, Serial No. 747,879, illed October 1l, 1934, and assigned to the General Electric Company, the assignee of my present invention.

The cabinet described above is provided with a separable refrigerating machine including as its principal elements a. refrigerant evaporator 38 and a refrigerant liquefying unit including a nned coil type air cooled condenser 3I and a refrigerant circulatory unit which, in the illustrative formof my invention, is a motor driven compressor unit contained in a hermetically sealed casing 32. Gaseous refrigerant is compressed by the motor driven compressor unit in the casing 32, is liquefied in the air cooled condenser 3I and is vaporized in the evaporator 38 by .the absorption of heat from the contents of the cooling compartment I5. 'Ihe vaporized refrigerant is then returned to the^compressor unit contained in the casing 32 and the cycle is repeated until the contents of the cooling compartment I5 reaches a predetermined temperature. The operation of the apparatus is described more in detail below.

The evaporator 30 is supported in the cooling compartment I5 by securing the same to the inside of an inverted L-shaped frame 33 having a horizontal portion extending above the opening in the inner liner I1 of the cooling compartment I5 and a vertical portion extending along the exterior side of the rear wall of the cabinet. The frame 33 includes a pair of channel-shaped side members 34 and 35, shown in Fig. 2. A pair of depending U-s'haped

brackets

36 and 31 are secured to the upper ends of the side members 34.

and 35 by

bolts

38 and 39, respectively. 'Ihe lower ends of the U-shaped bracket 36 are secured to a rectangular top liner 40 of the cooling compartment I5 by bolts 4I and 42. The top i liner 48 is also rigidly secured to the lower ends of the bracket 31 by similar bolts. The top liner 40 is provided with an upstanding peripheral ange 43 and when in position in the cabinet is secured by a bolt 45 to a horizontal flange 44 formed on the top edge ,of the inner liner I1 of the cooling compartmentli surrounding the opening in the' top thereof, as illustrated in Fig. 1.

In the illustrative form of my invention, the evaporator 88 is of the flooded type and is made of sheet metal. This evaporator includes complementary inner and outer

sheet metal portions

46 and 41, respectively. A horizontal header 48 is formed by indentations in the

sheets

46 and 41 near the top of one side wall of the evaporator 3 6, and a series of refrigerant circulatory passages 49 communicating with the header 48 are formed by corrugations in the outer sheet 41 and the 2 cooperating, smooth, inner sheet 46. The upper edges of the evaporator 38 are provided with outturned anges 50 and 5I which are secured by

bolts

52 and 63, respectively, to the removable top liner 40 of the cooling compartment I5. A layer or pad of loosely packed heat insulation 54 is placed above the top liner 4I) and the rectangular opening in the top of the shell I0 surrounded by the flange II is closed by a flat sheet metal cover 55. The sheet .metal cover 55 is provided with a downwardly extending peripheral flange 56 having an inturned portion 51 along the front edge thereof. The inturned edge 51 of the cover 55 is held in place by a spring clip 58, the inner end of which is secured to the top of shell III by a bolt 59. The rear edge of the cover 55 is held in place by clips 68 which are secured byv a screw 6Ia to the rear portion of the flange 56 formed on the cover 55, and secured to the rearwall of the shell I0 by a machine screw 6I. A rubber gasket 55a extending entirely about the top of the flange II is arranged between this flange and the cover 55.

A flow controlling float valve contained in a casing 62 is supported beneath the cover 55 in a cylindrical depression 63 formed in the rear portion of the top liner 48. The float valve casing 62 has an outletextension 64 secured to the bottom thereof, which extends through a hole 65 formed in the bottom of the cylindrical depression 63 in the top liner 48. A rubber gasket 66 surrounds the portion of the outlet extension 64 passing 'Ihe horizontal portions of the side members 34 and 35 of the L-shaped frame 33 pass through notches 1I and 12 provided in the rear portions of the ang I I and 56, respectively, and rest .directly on the top of the rear wall of the cabinet formed by an inturned portion 13 of the outer shell I0.

A second frame 15 is pivotally connected to the lower end of the vertical legs or portion of the frame 33. The frame 15 includes a pair of channel-shaped side members 16 and 11, the upper ends of which are -provided with

straps

18 and 19, respectively, secured thereto by bolts 88 and 8|, spacing blocks 82 and 83 being provided to align the upper and lower frames. A similar pair of straps 84 and 85 are secured to the lower ends of the side members 34 and' 35, respectively, of the L-shaped frame 33 by

bolts

86 and 81, respectively. The second frame 15 is pivotally connected to the frame 33 by a metal tube 88 extending through aligned holes in the overlapped ends of the

straps

19 and 85 and also through registering holes in the straps 18 and 84. One end of the tube 88 is rigidly secured to the strap preferably by welding as indicated at 89, in Fig. 4, and the opposite end of the tube 88 is similarly rigidly secured to the strap 84. The tube 88 fits loosely in the holes formed in the upper ends of the

straps

18 and 19 so that the latter may swing freely thereon, the tube 88 forming a journal therefor. The upper ends of the channel shaped side members 16 and 11 are held in position on the cabinet by a pair of bolts 14 which pass through the adjacent portion of the shell I0 and flange I4 on the partition I2. The channel-shaped side members 16 and 11 of the frame 15 are connected by a pair of upper and Cil lower angle irons 90 and 9|, respectively, the ends of which are welded thereto. Brackets 92 and 93 are provided on the upper and lower angle irons 90 and 9|. The compressor casing 32 is supported on the brackets 92 and 93, the inner sides thereof being arcuate in shape and conforming to the rear wall of the casing 32, to which they are welded. Ihe brackets92 and 93 are secured to the angle irons 90 and 9| by

bolts

94 and 95, if respectively. The fn type air cooled condenser 3| is rectangular in shape and is provided at the lower side thereof with a bracket 96, the upper end of which is secured by a bolt 91 to the condenser 3| and the lower end of which is'secured 1.3 by a bolt 98 to the lower flattened end of the side member 11 of the frame 15. The upper and lower rear ends of the condenser 3| are secured to the side member 11 of the frame 15 by screws 99 and |00, respectively, which pass through spaclo ing blocks 99al and |00a.. The lower ends of the side members 16 and 11 of the frame 15 are flattened and provided with slots and |02, respectively. Bolts |03 passing ,through the slots |0| and |02 firmly securethe lower ends of the :t: side members 16 and 11 of the frame 15 to a horizontal angle iron |04, the opposite endsof which are welded to the legs of the cabinet base 23.

A fan |05, driven by an electric motor |06, is provided for circulating cooling air in the malo chinery compartment I6 over the surface of the air cooled condenser 3| and over the casing 32 surrounding the motor driven refrigerant compressor. The fan |05 and its motor |06 are supported within a casing |01 by brackets |08. The :ifi brackets |08 are secured to the motor |06 by screws |09 and the outer ends of these brackets are welded to the casing |01. The larger or flared end of the casing |01 is square and conforms to the edges of the condenser 3| and is secured 4,1, thereto by screws |0. The rear portion of the casing |01 and the motor driven fan contained therein are supported on the compressor casing 32 by a bracket One end of the bracket is welded to the fan casing |01 and the opposite 47,. end thereof is secured by a screw ||2 to a support I3, which is welded to the side wall of the casing 32. The refrigerant circuit of the refrigerating machine described includes a conduit ||4, which ,f-,o connects the discharge side of the compressor contained in the casing 32 with the inlet ||5 of. the condenser 3|. A flexible conduit ||5 made of copper tubing, or the like, connects the outlet I6 of the condenser 3| with the float valve 55 icasing 62 for supplying liquid refrigerant thereto. The central portion ofthe conduit ||5 is supported adjacent the line of movement of the pivotal connection between the adjacent ends of the

frames

33 and 15 by a horizontal bracket |1, to which is formed by a sheetof metal having a U- shaped cross section, the upper edges thereof being rigidly secured to the tube 88, preferably by welding as indicated at I8, in Fig. 4. The upper portion of the conduit ||5 is protected by sup- 65 porting the same within the channel-shaped side member 34 of the frame 33. Strips ||9 and |20 secured to the side member 34 by screws |2| and |22, respectively, are provided for holding the conduit ||5 in its proper position within the 70 channel-shaped side member 34. A liquid line |23,connects the outlet 64 of the oat valve casing 62 with the refrigerant circulatory passages 49 of the evaporator'30. A flexible suction conduit |24 made of copper tubing, or the like, com- 75 municates with the header 48 of the evaporator at |25 above the normal liquid level therein, and is connected to the casing 32, which is at low pressure substantially the same as the pressure in the evaporator 30, so as to return vaporized refrigerant from the evaporator to the inlet of 5 the compressor contained in the casing 32. It will be noted that the conduit |24 extends about the float valve casing 62 in heat conducting relationship therewith. The upper portion of the conduit |24 is supported in a channel-shaped side 10 member of the frame 33 being firmly held in positionA therein by strips |26 and |21, which are secured to the channel-shaped side member 35 by screws |28 and |29, respectively. The central portion of the flexible conduit |24 passes through the 15 tube 80 which pivotally connects the

frames

33 and 15. The lower portion of the conduit |24 is supported in the channel-shaped side member 16 of the lower frame 15 by strips |30 and 3| which are held in position by screws |32 and |33,- 20 respectively. The conduits ||5 and |24 thus provide a iiexible connection between the evaporator and the refrigerant liquefying unit which are rigidly supported on the

frames

33 and 15, respectively. 25

In the operation of the rcfrigerating machine, described above, gaseous refrigerant is compressed by the motor driven compressor contained in the casing 3 2 and is discharged therefrom through the conduit ||4 and enters the 30 condenser 3| at its inlet ||5. The compressed gaseous refrigerant circulates through the tortuous series passages-formed in the condenser 3| by the tubes 3|a and is liquced by the transfer of heat therefrom to the coelinJr air which passes 35 over the surface of the tubes 3|a, the heat conducting fins 3|b which are. in heat exchange relationship therewith aidng in the transfer of heat' therefrom. The fan |05 draws air across the surface of the condenser 3| and discharges thc i0 same against the adjacent wall cf the compressor casing 32. The air in the machinery compartment |6 is thus repeatedly circulated over theH surface of the condenser 3| and the compressor casing 32. As the air in the machinery compartment 5 is warmed by the transfer of heat thereto from the condenser 3| and the compressor casing 32 it escapes through the open rear wall of 'the machinery compartment and passes upwardly therefrom along the rear wall of the cabinet. The channel shaped side members 34 and 35 of the frame 33 space the rear Side of the cabinet from any adjacent room wall or similar obstruction so that a free passage for warmed air is always available. Cool air enters the machinery compartmentl through the opening 28 in the lower front portion thereof and aids in displacing the warmed air in the machinery compartment |6, a natural draft of cooling air being thus set up. The movement of the air set up by the G0 fan |05 also aids in discharging air from the compartment I6. Part of the air discharged from the fan |05 is deflected tothe open rear side of thecompartment I6 by the casing 32. The refrigerant in the condenser 3|, which is 65 liquefied by the transfer of heat therefrom to the surrounding cooling air, drains by gravity to the lower portion thereof and is forced through the outlet ||6 by the pressure of the high pres- 0 sure refrigerant vapor in the condenser above the level of the liquid refrigerant therein and through :the conduit ||5 to the float valve casing 62. The

liquid refrigerant accumulated in the float valve casing62 is supplied to the evaporator 30 through j sition in the machinery compartment I5.

the liquid line |23 in sumcient quantity to maintain the header 48 about half full of liquid refrigerant. The refrigerant circulatory passages 49 are thus flooded with liquid refrigerant. The refrigerant, which is vaporized by the absorption of heat from the cooling compartment I5, is collected in the header 48 above the level of the liquid refrigerant contained therein, and isdrawn off to the compressor contained in the casing 32 through the suction conduit |24 and the cycle is repeated continuously during operation Yof the machine.

'I'he refrigerating machine described may be removed from the cabinet, or the like, used therewith for purposes of shipment and is preferably arranged for shipment with the compressor casing 32 and condenser 3I supported above the frame 33 in the position shown in Fig. 3. When in that position, the refrigerating machine occupies a minimum amount of space and is in such a position that an ordinary rectangular Wooden shipping frame may be readily fitted thereto. When removing the refrigerating machine from the cabinet, the bolts |03 are removed from the rear horizontal angle iron |04 thus freeingv the lower end of the frame 15. 'I'he bolts 14 which secure the upper end of the frame 15 to the rear of the cabinet are removed and the frame 15 may then be'swung to the rear at an angle of say 90 with respect to the adjacent portion of the frame 33. 'I'he compressor casing 32, the condenser 3|, and the associated cooling fan, which are all rigidly supported on the frame 15, are thus swung free of the machinery compartment I6 and of the cabinet base through the vopen rear wall thereof. An L-shaped foot |34 is provided on the bottom of the casing 32 being welded, or otherwise rigidly secured thereto in order to protect the adjacent portions of the conduits II4 and |24 from damage. The cover 55 is removed from the cabinet after removing the screws 6| and disengaging the clip 58. The pad of insulation 54 may be lifted out and the bolts 45, which normally hold the top liner 40 in position on the flange 44, are removed. The entire refrigerating machine is then moved vertically upward, thus removing the evaporator from the cooling compartment I5. The frame 15 may then be swung back through 180 to the position shown in Fig. 3 and the refrigerating machine is then in proper position for shipment.

In assembling the refrigerating machine on the cabinet, the operations described above are reversed, that is, the frame 15 is swung backwardly through 180 from the position shown in Fig."`3 and the refrigerating machine is positioned adjacent the cabinet with the evaporater 30' above the opening inthe top thereof. The evaporator 30 is then moved vertically downward into its position in the cooling compartment I5 and the top liner 40 is secured in position on the flange 44 by the bolts 45. The frame 15 is swung into alinement with the vertical portion of the frame- 33 thus moving the refrigerant liquefaction unit into its proper po- The frame 'l5 is then fastened securely in position by the bolts 14 and |03. It is thus unnecessary to 4alter any of the refrigerant connections in mounting the refrigerating machine on its cabinet or dismounting the same therefrom. Since the central portions of the flexible conduits |24 and II5 are located closely adjacent the line of movement of the pivotal connection between the

frames

33 and 15, the minimum amount of bending is imposed on the conduits during the relative movement of the

frames

33 and 15 described above. The larger exhaust conduit |24 is preferably arranged at the center of the pivotal movement, that is through the center of the tube 88, in order that most of the bending imposed 0n the conduit will be in torsion. Since the conduits |I5 and |24 extend substantially entirely across the

frames

34 and 15 the torsional stress per unit length in the conduits is minimized when the frames are pivoted with respect to each other. When so arranged, I have found that the likelihood of the breakage of the con--y duits due to bending is minimized. 'I'he tube 88 and bracket III also protect the conduits |24 and II5, respectively, from damage.

While I have shown a particular embodiment of my invention in connection with a compression type refrigerating machine, I do not desire my invention to be, limited to the particular construction shown and described and I intend, in the appended claims, to cover all modifica,- tions within the spirit and scope of my invention.

What I claimv as new and desire to secure by Letters Patent of the United States, is:

1. In combination with a refrigerator cabinet provided with a machinery compartment and a cooling compartment, a refrigerating machine for said cabinet andseparable therefrom comprising, means including a refrigerant evaporator for abstracting heat from said cooling compartment, a vertical frame extending along the exterior side of a vertical wall of said cabinet, a refrigerant circulating unit, means including a second frame pivotally connected to said first mentioned frame for supporting said refrigerant circulatory unit in said machinery compartment, and means for supplying refrigerant from said refrigerant circulatory unit to said evaporator.

2. In combination with a refrigerator cabinet provided with a machinery compartment having an opening in the rear wall thereof and a cooling compartment above said machinery compartment, a refrigerating machine for said cabinet and separable therefrom comprising means including a refrigerant evaporator for abstracting l heat from said cooling compartment, a vertical frame extending along the exterior side of the rear wall of said cabinet, a refrigerant circulatory unit, meansl including a second frame pivotally connected to the lower portion of said first mentioned frame and extending into said opening for removably supporting said refrigerant circulatpry unit in said machinery compartment, and means for supplying refrigerant from said refrigerant circulatory unit to said evaporator.

3. In combination with a refrigerator cabinet provided with a machinery compartment and a 7 cooling compartment having an opening in the top thereof and arranged above said machinery compartment, a refrigerating machine for said cabinet and separable therefrom comprising means including a refrigerant evaporator for abstracting heat from said cooling compartment, means extending above said opening in said cooling compartment for removably supporting said evaporator therein, a vertical frame extending along the exterior side of the rear wall of said cabinet, a refrigerant` circulatory unit, means including a second frame pivotally connected to the lower portion of said vertical frame for supporting said refrigerant circulatory unit in said machinery compartment, and means for supplying refrigerant from saidrefrigerant circulatory unitto said evaporator.

4. In combination with a refrigerator cabinet l provided with a machinery compartment having including a refrigerantevaporator for abstracting heat from said coolingcompartment, a vertical ,frame having an upper laterally extending portion resting on the top of the rear wall of said cabinet, a refrigerant circulatory unit, means includingv a second frame pivotally connected 'to the'lower portion of s'aid first mentioned frame and extending into said .opening for removably supporting said refrigerant circulatory unit in said machinery compartment, and means for supplying refrigerant from said refrigerant circulatory unit to said evaporator. r

5. In combination with a refrigerator cabinet provided with a machinery compartment having an opening in the rear. wall thereof and a cooling compartment having an opening in the top thereof and arranged above said machinery compartment, a refrigerating machine for said cabinet and separabletherefrom comprising an L-shaped frame having a vertical portion extending along the exterior side of the rear wall of said cabinet and a horizontal portion resting on the top of said cabinet and extending above s-aid opening in the top of 'said cooling compartment, a refrigerant evaporator, means for securing said evaporator to said horizontal portion of said frame,arefrigerant circulatory unit, means including a second frame pivotally connected to the lower portion of said first mentioned frame and extending adjacent said opening in the rear wall ofy said machinery compartment for removably supporting said refrigerant circulatory unit in :aid machinery compartment, and means for supplying refrigerant from said refrigerant circulatory unit to said evaporator.

. 6. In combination with a refrigerating cabinet provided with a machinery compartment and a cooling compartment above said machinery compartment, a refrigerating machine for said cabinet and separable therefrom comprising meansincluding a refrigerant evaporatorfor abstract` ing heat from said cooling compartment, a verticalframe having channel-sh-aped side members. extending along the exterior side of the rear wall of said cabinet and carried by said cabinet, a refrigerant circulatory unit', means including a second frame pivotally connected to said first vmentioned frame for supporting saidrefrigerant circulatory unit in said machinery compartment,

and means including a conduit supported in one of said channel-shaped side members for supplying refrigerant from said refrigerant circulatory unit to said evaporator.

1. In combination with a refrigerator cabinetv provided with a machinery compartment having an opening in the rear wall thereof and a coolingl compartment above said machinery compartment, a refrigeratingvmachine'/ for said cabinet cooled condenser extending from said second frame into said machinery compartment. and means including a fan for circulating cooling air over said condenser and said compressor unit.

8. In combination with a refrigerator cabinet vprovided with a machinery compartment having an opening in the rear thereof and a cooling compartment having an opening in the top thereof and arranged above said machinery compartment, a refrigerating machine for said cabinet and separable therefrom comprising an L-shaped frame having a vertical portion extending along L the exterior 'side of the rear wall of said cabinet vand a horizontal portion extending above said opening in the top of said cooling compartment, a refrigerant evaporator, means for supporting said evaporator on said horizontal portion of said frame in said cooling compartment, a second frame pivotally connected to the lower portion of said vertical frame, a refrigerant compressor unit carried by said second frame and extending laterallytherefrorn into said machinery compartment, an air cooled condenser carried by andy 4extending laterally from said second frame into said machinery compartment, and means includf 'ing a fan for circulating cooling air over said4 supporting frame, a refrigerant circulatory unit, f

arefrigerant evaporator mounted on said frame, a conduit connecting said refrigerant circulatory unit and said evaporator, a pivotal connectionI between said refrigerant circulatory unit and said frame, and means for supporting said conduit adjacent the center of -movement of said pivotal connection.

10. A' refrigerating 'machine separable from a cabinet or the like usedtherewith comprising a supporting frame, a refrigerant evaporator, means for supporting said evaporator at one end of said frame, a` refrigerant circulatory unit, a conduit connecting said refrigerant circulatory unit and said evaporator, and means including a bearing having an opening therethrough through which said conduit passes for pivotally connecting said refrigerantcirculatory unit to the end of sai-d frame opposite said evaporator:

1l. A refrigerating machine separable from a Y.

cabinet or the like used therewith 'comprising an -saidv evaporator, and means including a bearing having an opening therethrough through which said conduit passes for pivotally connecting saidl l refrigerant circulatory unit to the other leg of saidL-shaped frame.

. 12. A refrigerating machine separable from a cabinet or the like used therewith comprising a supporting frame, a refrigerant evaporator, means for supporting said evaporator at one end of saidA frame, a refrigerant liquefying unit including a motor driven compressor and an air cooled condenser, a conduit connecting `said refrigerant liquefying unit and said evaporator, means including a bearing vhaving an. opening therethrough through which saiduconduit passes for pivotally connecting said refrigerant liq'uefying unit ,to the end of said frame opposite said evaporator. v V

13. A` refrigerant machine separable from a cabinet or the like used therewith comprising an L-shaped supporting frame, a refrigerant evaporator, means for rigidly supporting said evaporator on the inside of one of the legs of said L-shaped frame, a refrigerant liquefying unit including a motor driven refrigerant compressor and an air cooled condenser, a. conduit connecting said refrigerant liquefying unit with said evaporator, and means including a bearing having an opening therethrough through which said conduit passes for pivotally connecting said refrigerant liquefying unit to the other leg of said L-shaped frame.

V14. A refrigerating machine separable from a cabinet or the like used therewith comprising an L-shaped supporting frame having channelshaped side members, a refrigerant evaporator, means for supporting said evaporator on the inside of one leg of said L-shaped frame, a refrigerant liquefying unit including a motor driven refrigerant compressor and an air cooled condenser, a conduit connecting said evaporator and said compressor, a second conduit connecting said evaporator and said condenser, means including said channel-shaped side members for supporting said conduits, and means including a' bearing having an open center through-which said first mentioned conduit passes for pivotally connecting said refrigerant liquefying unit to the other leg of said L-shaped frame.

15. A refrigerating machine separable `from a cabinet or the like used therewith comprising a refrigerant circulatory unit, a refrigerant evaporator, a conduit connecting said refrigerant ciry frame.

culatory unit and said evaporator, a pivotal connection between said refrigerant circulatory unit and said evaporator, and means for supporting an intermediate portion of said-conduit adjacent the center of movement of said pivotal connection.

16. A refrigerating machine separable from a cabinet or the like used therewith comprising a supporting frame, a refrigerant circulatory unit, a refrigerant evaporator mounted on said frame, a conduit connecting said refrigerant circulatory unit and said evaporator, a pivotal connection between said refrigerant circulatory unit and said frame, and means for supporting an extended portion of said conduit adjacent the center of movement of said pivotal connection.

17. A refrigerating machine separable from a cabinet or the like used therewith comprising a supporting frame, a refrigerant evaporator, means for supporting said evaporator at one end of said frame, a refrigerant circulatory unit, a conduit connecting said refrigerant circulatory unitand said evaporator, andvmeans including spaced apart bearings having aligned openings therethrough located at the end of said frame opposite said evaporator for pivotally connecting said `refrigerant circulatory unit to said frame, said conduit extending through said openings in said bearings with the portion thereof between said bearings extending substantially across said LEONARD W. ATCHISON.