US1958832A - Refrigerator - Google Patents

Description

May 15,1934. w, MAUTHE; 1,958,832

REFRIGERATOR Filed Dec. 18, 1933 2 Sheets-Sheet. 1

Z0. mauzhe awv mtoz- May 15, 1934. w. MAUTHE v REFRIGERATOR 2 Sheets-Sheet 2 Filed Dec. 18, 1933 wiweoo Widow said openings, a drain from the upper side of said partition, a forwardly inclined ice cake supporting plate mounted in said ice chamber over said partition, said plate having relatively'deep front-torear corrugations providing one upwardly open set and one downwardly open set of channels, the.

which the cold air escapesto the cold air-conducting opening of said partition.

6. A refrigerator comprising a casing, a substantially horizontal partition dividing said casing into an upper ice chamber and a lower food chamber, the edges of said partition being to the casing, said partition having an upwardly directed front portion in spaced relation with the casing front wall, said upwardly directed portion having conducting openings for ascending warm air, the rear portion of said partition being provided with a conducting opening for descending cold air, means for preventing ice drippings from passing through any of said openings; a drain from the upper side of said partition, a forwardly inclined ice cake supporting plate mounted in said ice chamber, said plate having relatively deep front-to-rear corrugations providing one upwardly open set and one downwardly open set of channels, the front portions of the downwardly open channels being adapted to receive. and for:-

wardly conduct the warm air ascending from said warm air conducting openings of said partition and having open front ends for discharging this air in front of the ice cake, all of the upwardly open channels not covered by the ice cake'being adapted to receive and rearwardly'conduct cold air descending at the sides-of the ice cake, the rear portions of said upwardly open channels having escape openings for thecold air descending to said cold air-conducting opening of said partition. v I I WILLIAM MAUTHE.

Patented May 15, 1934 v REFRIGERATOR William Mauthe, Fond du Lac, Wis., assignor to Sanitary Refrigerator Company, Fond du Lac, Wis., a corporation of Wisconsin Application December 18, 1933, Serial No. 702,988 .6 Claims. (01. 62-46) The invention relates to a refrigerator using ice as a cooling medium, and it aims to provide a. new and improved structure in which air is so circulated that it ascends in the front of the food chamber, enters the ice chamber, flows upwardly in front of the ice cake, then flows over the top of the ice and down the sides of the same, descends into the food chamber and finally flows downwardly in the latter to start another cycle of circulation. In so circulating not only is the air thoroughly chilled to produce effective refrigeration, but it is virtually washed by contact with the melting'ice and is thus freed from impurities. Moreover, repeated opening of the food chamber door will not materially change the efliciency of the refrigerator, for any warm air entering through the open door, immediately ascends and hastens the. circulation. Fig. 1 is a vertical sectional view cut in aplane at right angles to the refrigerator front.

Fig. 2 is a horizontal sectional view on line .2-2 of Fig. 1.

Fig. 3 is a front elevation with the ice chamber and food chamber doors removed, parts of this view being shown in vertical section on the plane of line 3-3 of Fig. 1.

Fig. 4 is a perspective view of the corrugated ice supporting rack.

Fig. 5 is a perspective view of a shield hereinafter described, which is instrumental in preventing any descent of drip water from the melting ice into the food chamber.

While the form of construction selected for illustration will be rather specifically described, 5 it is to be understood that within the scope. of the invention as claimed, numerous variations may be made.

An appropriate insulating, casing C is shown, provided with a lower door D into a foodchamher F and with an upper door D into an ice chamber I. The two chambers are separated by a partition 10 which, while substantially horizontal, declines slightly toward the rear, at which a drain 11 is located. The partition 10 is pro- 5 vided with a vertically directed front portion 12 which is rearwardly spaced from the front wall of the casing C, said upwardly directed portion being provided with a multiplicity of openings 13 to conduct ascending relatively warm air into the lower portion of the ice chamber" I. The back edge and the front-to-rear edges of the partition 10 are fluid-tightly secured-to the refrigerator lining 14, and the front edge of said partition (at the upper end of the portion 12) L may well be provided with a flange 15 secured upon a cleat 16 secured to the front wall of the casing, between the upper and lower doors. A downwardly and rearwardly curved cowl 17 extends over the openings 13, to prevent any descending drip water from passing through these openings into the fluid chamber F.

The rear portion of the partition 10 is formed with a relatively large opening 18 to conduct descending relatively cold air. This opening 18 is surrounded by an upstanding flange 19 which prevents any of the drip water on the upper side of the partition 10 from flowing into said opening, and to prevent any of such water from drop-' .ping directly through the opening, a suitable shield 20 is provided above the same. In the present showing, this shield is provided with forwardly projecting supporting arms 21 which rest upon the front part of the cowl 17, which part is supported by the'ledge 16 and flange 15, in the present showing. I have shown suspending hooks provide the plate with an upwardly open set of 'all of the channels 28 are open to allow escape of the ascending air therefrom and in the present showing, the upper front portions of the arched corrugations of the plate 24, are cutaway as at 29, allowing free discharge of air from said channels 28.'

. The air ascending in front of the ice cake B flows rearwardly and laterally over the same and then descends at opposite sides of the ice. Any

of the upwardly openchannels 2'7 which are not completely covered by the ice block B will receive this downwardly flowing cold air and will direct it rearwardly. Then too, some of this air can descend in spaces 30 which are preferably left between the plate 24 and the sides of the casing

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