US1589064A

US1589064A - Refrigerating cabinet

Info

Publication number: US1589064A
Application number: US32065A
Authority: US
Inventors: Ralph W Gearhart
Original assignee: GEARHART SALES CABINET CO Inc
Current assignee: GEARHART SALES CABINET CO Inc
Priority date: 1925-05-22
Filing date: 1925-05-22
Publication date: 1926-06-15
Anticipated expiration: 1943-06-15

Description

June l5 1926. 1,589,064

R. W. GEARHART REFRIGERATING CABINET Filed May 22, 1925 I' vl C M /0 11 912 ATTORNEY for the refrigeration of its interior.

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Patented June 15, 19.2.6.

i UNITED STATES rliisaoei [PATENT oFFlcE..

RALPH w. -crfiiAnnAn'ry or cLEAnFiELn, PENNSYLVANIA, AssIGNon 'ro cE'ARHARr SALES CABINET CO., INC, OF DELAWARE.

rCl'iEAItFllIELD, PENNSYLVANIA, A. CORPORATION 0F REFRIGERATING-CABINET.

Application led Hay 22, 1925. Serial Io. 32,065.

In the commercial manufacture of ice cream and other frozen food products, the same are' delivered from the freezer in a more-or less slushy or semi-solid form, and require hardening before they are 4adapted for distribution and consumption.

It is for this purpose of hardening that my present invention is 'more especially intended, but it will be evident to those skilled in the art that my improved cabinet may be employed with great advantage to many other uses involving the refrigeration of food products and other substances.

For this purpose Ihave invented a cabinet Whose Walls are insulated against heat and which is provided with internal mens ie refrigeration may be accomplished by means of pipes mounted within the cabinet and through which a refrigerating agent, such as ammonia or chilled brine is passed, or the cabinet may be provided with a wall tank or tanks through which the chilled 4brine flows. I prefer to provide the cabinet with hollow walls'in which the pipes are coiled, the cavit being waterftight so that the pipes e immersed in a bath of brine.

A diiiiculty in the present practice with cabinets of this character is that when the closure is'opened to removel a portion of the contents of the cabinet, large quantities of Warm air are admitted, thus injuriouslyaffecting the remaining contents of the cabinet and materially raising its4 interior temperature. Thus, it is impractical to Vobtain proper hardening or refrigerating results in cases -Where portions of the contentsof the cabinet must beremoved or replenished at relatively frequent intervals. The result, in such cases, is that the hardening or refrigeration is only partial or incomplete, and the quality of the goods is seriouslyimpaired. y To overcome this diticulty, I provide in addition to the main door or closure of the cabinet, a plurality of inner closures or doors which close oli' portions of the interior of the cabinet, so that when a portion of the contents of the cabinet isdto be removed, the main door is first opened4 and then the proper innerclosure to gain access to the desired contents, thus avoiding the exposure of the remaining contentsto an inru'sh of warm air. Thus, also, a portion of the contents of the cabinet may be replenished u without exposing the other contents of the cabinet to heating.

In the preferred form of my invention, theinterior of the cabinet is provided withl a rack upon Which the containers, such as fiat pans, upon which the articles to be refrigerated ai'e placed, are mounted in tiers, such containers being slidable into and out of said rack through the A open door of the cabinet. To enable the cabinet to be readily cleansed at frequent intervals,y the rack is arranged to be slid into and out of the cabinet through .the opened cabinet door.

The vfront of the rack is provided with an inner door or closure for each tier, so that when access to a tier is desired, the cabinet door is first opened and then the inner door of the proper tier, the other inner doors remaining closed for the protection of the con; tents of the other tiers. The inner doors,

-.Wlie`n all closed, form an inner seal or closure for the cabinet just within theouter door, so that an air space between the inner and outer closures is provided, thus assisting in the insulation of the cabinet against the entrance of heat from without.-

My invention consists also in thevarious vsubcombinations and details hereinafter described, and also in the construction, and in the arrangement of parts shown. y

.In -the accompanying drawings, Fig. 1 is a perspective view of a cabinetembodying the principles of my invention, the cabinet door being shown open, the rack partially Withdrawn from the cabinet and one of the tier doorsbeing partially opened; Fig; 2 is a vertical section of the cabinet taken along the line IIII` in Fig. .3; Fig'..3 is a horizontal section of the cabinet taken along the' line III-#III in Fig. 2;'Fig. 4 is an enlarged broken perspective view of the front ing a modified form of rack, and. Fig. 6 is an-` enlarged detail in horizontal sectionz showing a front corner of the cabinetand the rack.

having an open front.

cabinet are of heat-insulated character. Thus the outer wall .1 Vmay be wood or metal and within Ywhich is a layer of heat-insulating material 2, such as cork. The inner wall is preferably of metal and in the form of a.

metal tank 3 which extends from the iioorp;

to the top of the cabinet andruns around the three sides of the same. At the front of the cabinet, the door opening is defined at either side by a post 4, whlch may be of wood. The top ofthe cabinet m'ay be removable, such as the lid B. he top, whether in the form of a removable lid or a permanently attached closure, is preferably provided with an interlining of cork or other heat-insulating material, as is likewise the bottom orfloor of the cabinet.

The front of the cabinet is closed by an outer door C, which is interlined with heat insulating material, as shown in Fig. 5, and which door is preferably. hinged to swing on a vertical axis.

E represents a continuous pipe which is coiled in the tank 3 in horizont-al lengths connected at the ends by the vertical legs 5. The upperfend'of the pipe is led out, as shown at 6 in Figs. 1 and 2 tllrough the side of the cabinet, while the lower end 7 is extended vertically and also led out through the side of the cabinet. Ammonia gas, refrigerated brine or some other suitable refrigerating agent'is caused to pass through saidpi e. I also prefer to maintain in Hsaid tank a ath of brine which is chilled by the contents of the pipe, or the brine contents of the tank may be replaced with freshly chilled brine at intervals, as may be desired.

Dis a rack, Figs. 1, 2, `3, 4 and 6, which, in the embodiment shown, is composed of vertical front legs 8 which are shown as an le irons with their flanges atthe front an turned out to either side, as shown in Figs. 3, 4 and 6. rlhe rear legs 9 are also angle irons, turned as shown in Fig. 3. The horizontal members or supports 10 of the rack are angle irons with their horizontal r flanges below and turned inwardly, as shown. These horizontal members are attached' to

legs

8 and 9 at their ends, and are also intermediate of their ends provided with the vertical stitening bars 11, of fiat metal, attached to their outer faces. At the tops and bottoms, the front legs are connected ,f and held in proper spaced relation by crossstruts 12. Similar cross;struts are provided for the rear legs 9.

The horizontal-members form a plurality of tiers for the storage of substances on the rack, the substances to berefrigerated being laced on long shallow pans 13 which may be slid into the rack from the front, being supported by the inturned flanges of the horizontal members 10. g

The rack is of proper width, so that when it is, slid into the cabinet, the out-turned fianges o the front legs S bear against the 'outer surfaces of the posts 4, as shown in Figs. 3 and 6\ cabinet at each entrance of air.

thus closing the front of the side of the rack against rthe 14 represents the inner doors, whichware preferabl of sheet metal and are pivotally attached` y their top edges to the front of the rack, one for eachrtier. Thus said doors may be provided at their tops with horizontal pivot shafts 15 Whose ends are journaledV in socket holes in the ,front legs 8. It is evident that when one of said inner orrtiendoors israised, a pan may be inserted into or withdrawn from the rack, without disturbing the other doors, and thus the material admissionl of warm air is prevented. It is also evident that when all thevinner doors are closed, an inner-seal or closure for the cabinet doorway is provided.

In Fig. 5 I illustrate a modified form of rack D wherein the sides and rear end and also, if preferred the top and bottom are enclosed, the horizontally dis osed angle irons 10a being attached to the side walls for the support of the pans 13. The front ot' "the rack D is provided 'with the angle-iron members 8, disposed like the members 8 of the rack D so as to fit against the door posts 4 and close the sides'of the rack against the entrance of the air. The lowest tier of the rack D .is shown provided with a continuous floor 10b as a.y substitute for the angle irons 10a. By providing a tight floor for .each tier I completely close it oi from the other tiers, so that the entrance of warm air into a tier `is absolutely yprevented unless .its individual door is opened. In Fig. 5

for the sake of clearness only one of they inner doors 14 are ,shown in place.

Thus the cabinet` may be loaded Vb tiers without seriously raising its interna temperature, and the contents of individual tiers may be removed or replenished in like manner.

I am thus able to, progressively and eflOO with a door, a rack within said outer casing and provided with a plurality of horizontal slldeways each adapted to receive a container,'and an individual door for the front end of each of said slideways, said door being arranged toy close to form atight clo- .sure for the outer end of the slideway after the container has been `inserted into the slideway. Y f 2. In a refrigerating cabinet provided with cooling means, the combination vof an .outer casing having a door-way provided 4`with a. door, a rack within said outer casing and provided with a plurality of horizontal slideways each ada ted lto receive a container, andan individual door for the front end of each of said SIidewayS, said doorbe-l ing arranged to close to form a tight closure ,for the outer end of the slideway after the ycontainer has been` inserted into the slideway, and said individual doors being also arranged whe'n all! closed to form an inner seal fior theV door-wayof the outer casing. p

3. In a` refrigerating cabinet provided with cooling means, the combination of. an outer Acasing having a door-Way provided with a door, a rack `within said casing, the front end of said rack being arranged to I fit `the door-way to seal the same jaga-inst the entrance of air along the sides of the rack,'and said rack being provided with 'a plurality of slideways each adapted to receive a container, and an individual door for the front end of each shdeway arranged to close to form a tight closure for the outer end of the slideway after the container has f been inserted into the slideway.

4. Ina refrigerating cabinet, the co1nbi` nation of an outer casing having a door- Way in its front provided with a door, pipe coils arranged against the inner surfaces of the side and rear walls of the casing for .the passage therethrough of a refrigerating agent, a rack in said casing surrounded at its sides and rear by said coils, said rack A'fitting at the front of said door-way vand way in itssfront provided with a door, pipe f coils arrang1 d against the inner surfaces of the side an v agent, arack in said casing surrounded at its sides and rear by said coils, said rack fitting at the front in said door-way and said rack` being provided with slideways adapted to receive containers inserted 'through said door-Way, and an individual drop doo'r mounted on said rack at the front of each'sldeway, said door being arranged rear walls of the casing for the i Apassage therethrough of a refrlgerating.

to drop down and close the outer end of the slideway after the container is inserted or withdrawn, and said drop doors being also arranged when theyare all closed to form an inner seal for said'door-way.

Signed at Clearfield, Pa., this 25th day of Apri 1925. Y

t RALPH W. GEARHART.