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Publication numberUS1191017 A
Publication typeGrant
Publication dateJul 11, 1916
Filing dateMay 18, 1915
Priority dateMay 18, 1915
Publication numberUS 1191017 A, US 1191017A, US-A-1191017, US1191017 A, US1191017A
InventorsThomas L Marshall
Original AssigneeThomas L Marshall
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cooling apparatus.
US 1191017 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




1,191,017. Patented July 11, 1916.



Specification of Letters Patent.

Patented July 11, 1916.

Application filed May 18, 1915. Serial No. 28,923.

To all whom it may concern:

Be it known that I, THoMAs L. MARSHALL, a citizen of the United States, residing at Decatur, in the county of Morgan and State of Alabama, ful Cooling Apparatus, of which the following is a specification.

The present lnvention appertains to a:

for use in butcher shopscooling apparatus and for kindred purposes,'and aims to provide a novel and improved appliance for cooling the interior of a refrigerator, whereby meats and other perishable commodities contained by the refrigerator will be kept cool and will be preserved.

'It is the object of the invention to provide a cooling apparatus having improved features of construction, to enhance the utility thereof, the structure being comparatively simple and inexpensive, being readily installed in various refrigerators, and being practical and efficient in use.

lVith the foregoing and other objects in view which will appear asthe'description proceeds the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described 1 and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made' within the scope of what is claimed, without departing from the spirit of the invention. 3

The invention is illustrated in the accompanying drawings.

Figure 1 is a vertical sectional view of-the refrigerator. Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1.

In the drawings, the numeral 1 designates a refrigerator, such as is used in a butcher shop, although it is to be understood that the present apparatus may be employed in connection with various refrigerators and receptacles for cooling them.

An upright coil 3 is disposed within the refrigerator 1 adjacent one side or the back thereof. The lower or discharge end of the coil 3 is connected to the receiving end of a brine circulating coil (not shown).

Slung from the top of the casing of the refrigerator 13 constructed of sheet metal or other suitable material. The chest or receptacle 13 is of smaller contour than the refrigerator so as to be spaced from the walls thereof, and the ice chest 13 is supported by means of have invented a'new and use-- 1 is an ice chest or receptacle I angle iron members-14: extending under the bottom of the ice chest 13 and having hangers 15 engaged to the ends thereof. The upper ends of the hangers l5are engaged through the top of the refrigerator and have nuts 16 threaded thereon whereby when the nuts'16are tightened,;the ice chest or receptacle 18 will be clamped-firmly against the top of the refrigerator casing. The ice chest 13 thus seats upon the angle iron members 1 1 and is disposed between the hangers 15 to be properly slung from the top of the casing. The topof the casing is preferably provided with a door 17 which may be opened for placing the chunk or chunks of me within the ice chest 13.

Slats 18 are disposed upon the bottom of v the ice chest 13 for supporting the ice there: on above the bottom of the ice chest. The upper edges of the sides of the ice chest 13 are provided with inwardly bent and downwardly projecting or depending aprons- 19 forming baffles extending from one end ofthe'ice'chest to the other, and the sides of the ice chest are provided with air inlet openings'20- adjacent the upper edges of said sides. The aprons or baflies 19 are continuations'of'the sides' of the ice chest and depend. below the horizontal plane of the openings 20 wherebythe air which enters the ice chest through the openings 20 will encounter the .bafiies :19 and will be directed downwardly thereby.

The discharge end of a brine returnv pipe 11 extends through one side of the ice chest 18 below the respective baffle 19 and enters an apertured or perforatedstrainer 21 disposed within the ice chest adjacent said side thereof and under the said baflle. The strainer 21 completely surrounds the discharge end of the pipe 11 and the discharge end of the pipe 11 projects downwardly or depends within the strainer 21, as at 22. The discharge end 22 of the pipe 11 will depend within the ice water within the ice chest whereby a water seal is provided for preventing air from entering the pipe 11.

An apertured or perforated strainer 23, bent from a plate, is attached to one end of the ice chest 13 within the ice chest, and

one side of the ice chest 13 to communicate with one end of the strainer 23.

A drain pipe 26 has its upper end engaged through the respective side of the ice chest above the end 25 of the coil 3 and communicates with the interior of the strainer 23 above the said end of the said coil. The drain pipe 26 extends downwardly to the sewer, or other point of discharge, and the pipe 26 is provided with a loop or coil 27 providing a trap to prevent foul air from rising through the pipe 26 into the ice chest.

As illustrated in Fig. 2, drip pans 28 may be supported in any suitable manner below the ice chest 13 between the angle iron members 14:, for catching the drippings due to the condensation of the moisture upon the exterior of the ice chest, and the drip pans 28 are provided with depending spouts or nipples 29 connected to a drain pipe 30, whereby the drippings will be drained off.

In operation, the ice or cooling agent is deposited within the ice chest or receptacle.

-After the ice melts, cold water will circulate through the coil 3. This will cool or refrigerate the interior of the refrigerator 1, to preserve the meats and other perishable provisions. \Vhen the water level rises to the upper end of the drain pipe 26, the water will overflow into the drain pipe and this will maintain the water level normal, it being noted that the warmer water will rise to the top to be drained off, while the cooler water will be circulated through the coils or water circulating conduit. Warm air within the refrigerator will rise and flow through the openings 20 into the ice chest 13 to be cooled by the'ice, and the baflles" 19 serve to trap the warmer air within the upper portion of the 'ice chest between the battles, and the baffles 19 are also of advantagein that they prevent the ice from stopping or closing up the openings 20. The strainers 21 and 23 prevent 4 the pipes 11 and 26 and the coil 3 from being stopped up by dirt or other foreign matter which might be present within the ice chest. When a lower temperature is desired, salt may be disposed inone or both 5 of the strainers, which will hasten the melting of the ice and therefore increase the cooling effect. The present apparatus is thoroughly sanitary and hygenic, and the warm air and foul odors within the refrigerator 1 in rising into'the ice chest will serve to render the interior of the refrigerator odorless and cool.

From the foregoing, taken in connection with the drawings, it is believed that the advantages and attributes of the present apparatus will be obvious to those skilled in the art without further comment being necessary, it being noted, however, that in reducing the invention to practice under va- (1 rious conditions appropriate changes or alterations will be necessary.

Having thus described the invention, what is claimed as new is The combination with arefrigerator cas 7 ing, of an ice chest therein, the sides of the ice chest having air inlet openings adjacent their upper edges and the upper edges of said sides having inwardly bent and downwardly projecting flanges forming battles 7 projecting downwardly below the horizontal plane of said openings, and a means for hanging the ice chest from the top of the casing and clamping it thereagainst.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.




Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6604373 *Apr 11, 2002Aug 12, 2003Richard A. BurgerAir conditioning system
US7007492Aug 1, 2003Mar 7, 2006Burger Richard AAir conditioning system
US20040020237 *Aug 1, 2003Feb 5, 2004Burger Richard A.Air conditioning system
U.S. Classification62/422, 62/460
International ClassificationF25D3/04
Cooperative ClassificationF25D3/04
European ClassificationF25D3/04