US1974736A - Refrigerating apparatus - Google Patents

Description

Sept. 25, 1934.

R. R. CANDOR REFRIGERATING'APPARATUS Filed Feb. 27, 1930 2 Sheets-Sheet l A TTOZNE YJ- 2 Sheets-Sheet 2 NTOR R. R. CANDOR REFRIGERATING APPARATUS Filed Feb. 27, 1930 Sept. 25, 1934.

Patented Sept. 25, 1934 I 1,974,736 REFRIGERATING APPARATUS Robert R. Candor, Dayton, Ohio, assignor to Frigidaire Corporation ration of Delaware Application February 27,

, Dayton, Ohio, a corpo- 1930, Serial No. 431,759

q 8 Claims. (oi. 62-116) This invention relates to refrigerating apparatus and more particularly to a refrigerating apparatus adapted to cool liquids such as drinking water, beverages or the like.

An object of this invention is to provide a simple and efficient liquid cooling device particularly adapted to be used with refrigerating systems oi the household type now on the market.

Another object of this invention is to provide a liquid cooling device which may be placed in a cabinet or the like, which cabinet may have a storage compartment so that the compartment may be efiiciently cooled by the liquid cooling device.

Further objects and advantages oi? the present invention will be apparent from the following de scription, reference being had to the accompany ing drawings, wherein a preferred form oi the present invention is clearly shown.

In the drawings:

Fig. l is a front elevation of a refrigerating paratus embodying features of this invention;

Fig. 2 is a vertical cross-sectional view taken along the line 2--2 of Fig. i with portions shown 2 diagrammatically;

Fig. 3 is a horizontal cross-sectional view taken along the line 3-3 of Fig. 2;, and

Fig. 4 is a vertical cross-sectional view showing a portion of a slightly modified form of the apparatus shown in Fig. 2.

A refrigerating apparatus embodying features of this invention may include a liquid cooling device, which device may comprise a liquid refrigerant header 20, a liquid refrigerant duct 21 extending from the said header and a liquid passage forming means 22 surrounding said duct in such a manner that liquid refrigerant is maintained within the duct and thermal exchange is insured between the liquid refrigerant in the duct and the liquid in the liquid passage forming means 22 so that the liquid discharge from said means 22 is at a desirable temperature; In the embodiment shown in Figs. 1, 2 and 3 the header may be placed in a compartment 23 in such a manner that the header 20 is adapted to cool the compart-' ment 23, preferably by direct contact between the air in the compartment and the header 20. This insures a desirably cool compartment 23 wherein bottled drinks and small packages or containers for food may be inserted and may be subjected to desirable refrigeration temperatures.

The liquid passing through the liquid passage forming means 22 may have its heat efficiently removed. I This may be accomplished by providsin a vane 24, preferably in the form of a spiral and preferably welded or soldered to the duct 21. Preferably this vane is spaced slightly from the outer wall of the means 22. The vane 24 thus increases the amount of thermal contact between v the liquid in the means 22 and the liquid refrigerant in the duct 21. g

. The cooled liquid may be removed from the means 22 in any desirable manner and preferably this is accomplished by means of a faucet 26 placed outside of the cabinet and connected to 6d the lower end of the means 22 as by a pipe 27.

A drain basin 213: may be placed underneath the faucet 26 and this may be connected to a pipe 29 joining'pipe 30 and by pipe 31 through any suitable drain disposing means such as a large reseriii voir or a drain pipe of the building in which the cabinet is installed. The drain 30 is thus adapted to remove any condensate within the compartment 23.

The liquid may be supplied to the means 22 in any desired manner and preferably it is supplied from a demijohn 32. This may be accomplished by providing means 33 for supporting the demiiohn on the cabinet which may include a connection 34 and 'a pipe 34a between the means for supporting the demijohn and the means 22 heretofore described.

The compartment 23 may be provided with a door 35, and preferably the liquid cooling device is placed at one side of the cabinet so that the .85 major portion of the compartment 23 is left unobstructed and the portion of the compartment 23 immediately behind the door 35 is totally free of obstructions. This provides a very desirable compartment for refrigeration of miscellaneous 00 articles. Ifdesired a shelf 36 may beinserted in the compartment 23.

The compartment 23 may include a sheet metal lining 36 provided with a lining top 3'7 resting on an out-turned flange 38 of the lining 36. The flange 38 is adapted to rest on frame members 39 forming part of the general framework in the cabinet. The insulation 40 is interposed between the lining 36 and the lining top 37 and the outer casings of the cabinet. I

Preferably the header 20 is provided with a valve 41 controlled by the means of a float 42 for maintaining a predetermined level of liquid refrigerant in the header 20. The evaporated refrigerant may be taken out of the header 20 through a funnel-shaped intake 43. The constructi'on of these parts may be substantially of the character shown anddescribed in the patent to R. G. Osborn, No. 1,556,708 patented Octoberv 13, 1925.

circulating means.

The refrigerant may be circulated through the liquid cooling device by any suitable refrigerant 'ihus a compressor may supply compressed refrigerant to a condenser 51 from which the condensed refrigerant may be stored in a liquid refrigerant receiver 52, From thence the liquid refrigerant may be conveyed by pipe 53 to the inlet fitting of which the valve ll is a part. The evaporated refrigerant entering the funnel-shaped intake 43 may return through the pipe 54 to the compressor 50 preferably through the crankcase. The compressor 50 may be driven by electric motor 70 and governed by conditions within the refrigerating system, preferably by means of a' snap switch 55 which stops and starts the motor 54 in accordance with the pressure of the refrigerant and the header 20, for instance, by connecting bellows 56 through the pipe 57 with the pipe 54. The bellows 56 may be provided with suitable connections" 58 operating a snap switch 55.

In the modification shown in Fig. 4, means22 corresponding to the means 22 shown in Figs. 1, 2 and 3 may be provided .with an extension 60 for completely surrounding the header 20. This provides a sleeve around the header 20 so that the liquid from the demijohn 32 is subjected to the cooling action not only of the duct 21 but also of the header 20. The extension 60 may be connected by the pipe 61 with the cup-shaped member 34 which corresponds to the one shown in Figs. 1 and 2. Otherwise the remaining parts shown in Fig. 4 may be the same, and functionin the same manner as the corresponding parts shown in Figs. 1, 2 and 3.

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

What is claimed is as follows:

1. A liquid cooling device comprising a cabinet having a storage compartment, 9. liquid refrigerant header in said compartment, a. liquid refrigerant duct extending from said header, 2. liquid passage forming means surrounding said duct, a spiral vane on said duct, means for supporting a. demijohn on said cabinet, a. connection between 'said last named means and said liquid passage forming means, and liquid discharge means outside said cabinet connection to said liquid passage forming means.

2. A-liquid cooling device comprising a cabinet havinga storage compartment, 9. liquid refrigerant header in said compartment, a liquidrefrigerant duct extending from said header, 9. liquid having a. storage compartment, a. liquid refrigerant header exposed in said compartment for cooling said compartment, a liquid refrigerant duct extending from said header, a liquid passage forming means surrounding said duct, a spiral navavse vane on said duct, means for supplying drinin ing water to said liquid passage forming means for cooling said water, and water dispensing means connected to said liquid passage forming means.

i. A liquid cooling device comprising a cabinet having a storage compartment, 2. liquid refrigerant header exposed in said compartment for cooling said compartment, a liquid refrigerant duct extending from said header, a liquid passage forming means surrounding said duct, means for supplying drinking water to said liquid passage forming means for cooling said water, and water dispensing means connected to said liquid passage. forming means; SE

5. A liquid cooling device comprising a cabinet having a storage compartment, a liquid refrigerant header enposed in said compartment for cooling said compartment, a liquid refrigerant duct extending from said header, a liquid passage forming means surrounding said duct, said header being provided with a float controlled valve for maintaining a predetermined level of liquid refrigerant in said header, means for supplying drinking water to said liquid passage forming 1% means for cooling said water, and water dispensing means connected to said liquid passage forming means.

6. A liquid cooling device comprising a cabinet having a storage compartment, a liquid refrigerant header exposed in said compartment for cooling said compartment, a. liquid refrigerant duct extending from said header, a liquid passage forming means surrounding said duct, a spiral vane off said duct, said header being provided lid with a float controlled valve for maintaining a predetermined level of liquid refrigerant in said header, means for supplying drinking water to said liquid passage forming means for cooling said water, and water dispensing means connected to said liquid passage forming means.

'7. In a liquid cooling device including a cabinet having an insulated storage compartment therein, a refrigerant conduit in thermal contact with the storage compartment for cooling the same, said refrigerant conduit having a portion extending from said portion thereof in thermal contact with the storage compartment and being insulated from the air within the storage compartment by a liquid passage forming means, means for supplying drinking water to said liquid passage forming means for cooling said water, and water dispensing means connected to said liquid passage forming means.

8. Inc liquid cooling device including a cabi- 1% net having an insulated storage compartment therein, a refrigerant conduit in thermal contact with the storage compartment for cooling the some, said refrigerant 'conduit having a portion extending from said portion thereof in thermal 13g contact with the storage compartment and being surrounded by a liquid passage forming means,

means for supplying drinking water to said liquid passage forming means for cooling said water, and water dispensing means connected to said 1% liquid passage forming means.

ROBERT R. CANDOR.

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