US2086503A - Refrigerating apparatus - Google Patents

Description

lamented July 6, 1937 UNITED STATES PATENT OFFICE I Application February 6, 1926,- Serial No. 86,586

Claims.

This invention relates to a refrigerating system, and particularly to cooling cabinets for use in such a system.

The invention is shown as applied to a cool- 5 ing cabinet adapted to receive ice-cream cans and brick ice cream.

One object of this invention is to provide a useful and eiiicient cooling'cabinet in which the various parts cooperate to provide uniform cooling and better insulation than are obtained in the-conventional cabinet.

In the present type of cooling cabinet for ice cream, diiiiculty has been experienced from the tendency of frost to collect at the top of the container which receives the cans, and around the cover for the can opening. Another object of this invention is to obviate this diiculty.

Another object is to prevent corrosion of the container at its upper end.

A further object is to prevent the conduction of heat from outside the cabinet to the top of the can, and the consequent softening of the ice cream. y

Another object of this invention is to provide means for preventing damage to the container by the insertion and withdrawal of ice-cream cans.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawing, wherein a preferred form of the present invention is clearly shown.

This invention is an improvement over the cabinet described in my Patent No. 1,746,702, issued February 1l, 1930.

In the drawing:

f Fig. 1 is a vertical sectional view through an icecream cabinet, embodying the invention; and

Fig. 2 is an enlarged sectional view of part of Fig. 1, showing the details of the cover construction.

The ice-cream cabinet I0 includes a bottom II and outer walls I2, fastenedto a frame composed of angle irons I3. The bottom is generally made of wood, while the side Walls are of sheet'metal. Inside the cabinet is placed a brine tank I4, insulated from the side walls I2, by 'material such as corkboard I5. The corkboard does not makedirectV contact with the tank I4, but is separated therefrom by a layer of hydrolene I6 serving' as Aa, seal against the passage of air from outside the cabinet to the brine' tank. -Angle irons I 3 prevent the c'orkboard from abutting directly the outer walls 4I2, and thus an air space I1 isprO-v vided for supplying additional insulation.

The upper wall part of the cabinet consists oi as solder.

cross-strips I8, I 9, secured to the upper angle irons I3 as by bolts 20. Hydrolene 2| is placed between strips I 9, and the upper'ends of the corkboard I5. r

The brine'tank is closed by a cover or top plate L 22 provided with holes adapted to coincide with the openings in containers 23, 24 which containers provide open lfood storage compartments. This cover rests on the turned-over walls of brine tank I4 and is fastened to the strips I9, as by 1 screws 25. Container or receptacle 23, which is cylindrical and is adapted to receive cans of ice cream, has a bead 26 near its top, which top eX- tends through the closed tank or cover 22, and brine tank cover 22 rests on this bead, thereby l bracing the container. Container 24 is rectangular in shape and is adapted to receive brick ice cream. Its upper ends are turned over and fastened to the cover 22 by any suitable means, such The top of the cabinet includes a layer of hy- 2O drolene 2'I, placed directly on the brine-tank cover, and over the hydrolene is placed a layer of corkboard 28. The cover'is nished by a board 29 placed on top of the corkboard, the board 29 2- being covered with a suitable rust-resisting sheet metal facing 30.

The top wall of the cabinet is apertured or cut away over the containers 23 and `24 to provide openings for access to the containers and the food 30 storage compartments formed thereby. Inside each of these openings is placed or inserted a suitable hard, non-metallic, non-conducting sleeve or tubular member 3|, preferably made of bre. Each of the openings andv its corresponding sleeve 3f lining is considerably larger in diameter than the container to which it opens. l Y

Referring particularly to the openings over containers 23 and 24, the sleeve 3| extends down from the top of the cabinet to just below the 40 upper edge of the container or receptacle 23 and may extend below the upper edge of container orA can 42 (see Fig. 1). A spring ring or facing 32 (Fig. 2) iits around theupper end of sleeve 3I and is bent over, the top sheet metal facing 30', thus protecting and providing a sheet metal facing for the cabinet at the opening and at the same time tending to' hold the sleeve 3| in place. This ring also supports a cover or closure device 33 for the cabinet opening. In cas'e of injury to the ring, it may readily'be removed and replaced.

'I'he cover or door 33 comprises 'a cylindrical section of corkboard 34, around whose circumference is placed a hard-rubber insulating ring 3i. 'I'hetopandbottomofthecoverarenisbed 55 with circular, rust-proof metal sheets or facings lil erating chamber, a top wall for the chamber having an opening therein, a lining member extend- 3S and 31, respectively. It is'thus apparent that the rubber ring 35 around the door 33 is held between the spaced edge portions of the sheet metal facings 36 and 3'! and provides an interruption therebetween. Around the upper edge of the cover, and between the hard-rubber ring 35 and the top sheet metal facing 36, is carried or placed an insulating member orsoft-rubber gasket 33 (Fig. 2). When the' cover is in place, the gasket 'rests on spring ring 32, forming a seal against the admissionv of warm air to the ice-cream container.

i Container 23 is provided with an additional metallic sleeve 39 which extends both above and below the upper end of the container. The sleeve 39- is slidable in the container 23 and is provided with a bead d which engages the bead on container 23, and thereby tends to hold the sleeve in place.J Sleeve 39' extends into sleeve 3l and is bent outwardly at its upper end as at di, to provide a flange which contacts the non-metallic insulating sleeve 3i above the lower edge thereof and thereby prevents any ice cream from lodging n between sleeves 3l and 39. The sleeve 39 extends down into the food storage compartment formed bycontainer 23 so as to have its lower edge disposed below the top edge of container 23.-

The sleeve 33 prevents the ice-cream can or container 42 from injuring the upper end of container 23, which is the portion of the container most often injured by the insertionand withdrawal of such cans. It will be seen from lthe above that in the event of injury to the sleeve 3i, ring 32 or sleeve 33, ,any of them may beremoved since theyv are removable or insertable through the opening in the top wall 3B. This is apparent, particularly from Fig. 2, where the opening in the top, lis larger than the sleeves 3| and 39 and the inserted part of ring 32.

A hooked rod 43 is provided to assist in moving the cans in and out of the container.

It will be apparent that a very useful and emcient cabinet has been provided. 'I'he nonmetallic, non-conducting fibre sleeve 3l prevents the passage of cold in one direction and thus the formation of frost about the cabinet openings and covers 33. On the other hand, the metallick sleeve 39 extends far enough above the top of the' can to conduct cold thereto and thus prevent the softening ofthe ice cream at that place. i This sleeve also serves, as was mentioned before,`to

prevent injury to the container during the inserti'on and withdrawal of cans. It further serres to prevent corrosion about the container opening. It is apparent that in the event of' any damage to the sleeve 39 it may be easily removed 'and replaced, whereas in 'ormercabinets it'has Vbeen necessary to replace the entire container. While the form of embodiment of the invention yas herein disclosed, constitutes a preferred form, it is to be understoodthat other forms' might be adopted, all comingwithin the scope of the claims which follow.

What is cl'aimed isas follows: l 1. Refrigerating apparatus including a refrig- 2. Refrlgerating apparatus including a refrigerating chamber. a top wall for the chamber having an opening therein, a lining member extending thru the opening and below the top wall, a container within the chamber registering with the opening, .and a sleeve `attached to the'container and terminating within the lining member, said sleeve having an outwardly flaring mouth engaging the lining member.

3. Refrigerating apparatus including a refrigerating chamber, a top wall for the chamber hav-, ing an opening therein, a lining member extending thru the opening and below the top wall, a container within the chamber registering with the opening, and a sleeve attached to the container, said sleeve extending within and below the top of the container, and in Contact with the lining member above the top of the container.

4. Refrigerating cabinet including a metal framework, a woodentop and framework supported by said metal framework, a brine tank Within. said meta-l framework extending to said wooden framework, a metal top for said brine tank, openings in said metal top, sleeves in said A.brine tank extending to said openings, openings in said wooden top in alignment Awith openings in said metal tank top, container guiding members extending throughout from said sleeves to the top of said openings including .removable metal flanged rings resting on top of said cabinet and ing on top of said cabinet and extending into the openings in said wooden top.

6. Refrigerating cabinet including a' metal framework, a wooden top and framework supported by said metal framework, Aa brine tank within said metal framework extending to said wooden framework, a metal top for said brine tank, openings in said metal top, sleeves in said4 brine tank extending to said openings, openings in said wooden top in algnmentwith openings in said metal tank top, a metal cover for said wooden top having openings in alignment with the openings in said wooden top, container guiding members extending throughout from said sleeves to the top of said openings including removable metal flanged rings resting on top of said cabinet and 'extending into the openingsin said wooden top.

'7. Refrigerating cabinet including a metal framework, a wooden top land framework supported by said metalframework, a brine tank I within said metal framework extending to said wooden framework, a metal top for said brine tank, openings in saidmetal top, sleeves in said brine tank extending to said openings, openings in said wooden top in'alignment with openings in ,said metal tanktop, a metal cover for'said wooden top having openings in alignment with the openi ings in saidwooden top, container guiding members of impervious material extending throughout from said sleeves` to the top of said openings kincluding removable metal hanged rings rting on top of said cabinet and extending into the openings in said wooden tcp.

8. In a closure device having relatively movable parts, sheet material facings for said parts, and insulating means carried by the facing of one of said parts and adapted to form a sealing contact with the facing of the other of said parts.

9. In a closure device ha ing relatively movable parts, sheet material facin s for said parts, and an insulating member secured to the facing on one of `saidparts and engageable with a sealing contact with the facing of the other of said parts.

10. In a closuredevice having relatively movable parts, sheet material facings -for said parts, the facing on one of said parts having an interruptin, an insulating means in said interruption and adapted toengage with a sealing contact with the facing of the otheiof said parts.

11. A sealing device for doors, comprising sheet p material facings for the adjacent faces of the door frame and the door, a yieldable insulating element secured to a facing and located to form a sealing contact with the other facing when the door is brought into closed condition.

1 2. A refrigerator wall construction having an inner metal wall member, an outer wally member spaced therefrom, and anther wall memberof ya. non-metallic non-hydroscopic material having low heat conductivity and extending between the inner and outer wall members to form a closure for the space between said wall members.

inner metal wall member, an outer metal wall member spaced therefrom,- and another wall 13. A refrigerator wallconstruction having an member cfa non-metallic non-hydroscopic material having low heat conductivity and extending between the inner and outer metal Wall members to form a closure for the space between said vwall members.

14. A cover or door for closing an access openfacing member, an outer facing member spaced therefrom to provide aninsulating chamber therebetween, insulation in the chamber between said facing members, and'another member of a non-metallic non-hydroscopic material having low heat conductivity and extending between the inner and outer facing members about the peripheries thereof to form a closurefor the insulation in the chamber between said facing members.

15. A refrigerator wall structure comprising, an inner metal wall member, an outer metal wall member spaced from the inner Wall member and forming a chamber therebetween, said inner and outer wall members having their edges spaced apart, and another wall extending between the inner and outer metal wall members and forming a closure for the space between the edges thereof, said another wall comprising -a member of low heat conductivity having a substantially nonhydroscopic rubber surface over at least the'exposed portions thereof.

' A JESSE G. KING.

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