US1721502A - Refrigerating apparatus - Google Patents

Description

July'23, 1929. PLAT-[EN 1,721,502

REFRIGERATING APPARATUS Filed May 16, 1927 2 Sheets-Sheet l I WE July 23, 1929. E. PLATTEN PARATUS il y 1a, 1927 2 Sheets-Sheet 2 m d J Patented July 23,, 192 9.

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Application filed Kay 18, 1927. Serial No. 191,719.

This invention relates to refrigerating apparatus and is particularly directed to household refrigerating apparatus.

Objects of this invention are to provide a' novel refrigerating apparatus in which a plurality of compartments are arranged in a row and provided with a metal floor and preferably with metal side walls intimatelyv connected with the metal floor so as to rom vide a refrigerating unit that will con not the heat throughthe floor and from the side walls, which heatis conducted from the foods or material placed in the individual compartments. J I l5 Further object is to provide a novel form of refrigerating unit suitable for apartmentsand adapted to be located in a place freely accessible to all of the tenants and to be constructed so that each tenant is provided with a separate compartment free from those of all the other tenants so that the food contained I in one compartment will not contaminate the food in the other compartments, and to provide a single refrigerating unit in actual physical contact with the metal linings of the different com artments. P

Further ob ect is to provide a novel means 'for yieldingly holding the pipes of the, re-

frigerating unit, in intimate engagement with the metal floor so that a direct conduc tion from the rest of the metal of the coi'fi' partment of the refrigerating unit is obtained. I

Further objects are to provide a novel form of refrigerating apparatus having the characteristics noted above in which metal lining is provided with a metal spring sealing typeof gasket, and which is provided with adoor to effect a conductin contactfor the walls of this com artment when the door is closed. Embo iments of the invention are shown in the accompanying drawings, in which: Figure 1 is a front view of the apparatus with a portion broken away.

is F1 e 2 is a transverse sectional view-of the line 22 of Figure 1.

Figure '3 is a transverse sectional view of v a modified formshowing a' novel'means of, holding the refrigerating unit in contact withthe metal floor.

- Referring to thedrawings it will be seen that the pair of compartments 1' and 2 has been shown to illustrate the invention, 'although it is to be distinctly understood that, any pumber of compartments may be employed or arranged in the device. The compartments are each lined along four vertical walls with a metal lining mately joined to the metal floor 4.

the conventional types, such as, that known commonly as Frigidaire and comprising a drum 5iwhi'ch is provided with ipes 6, extending outwardly from the cabinet. The unit also comprises u per and lower stretches sof pipes 7 an 8 joined to the drum 5. I

As shown in Figures 1 and 2, it is to be ndted that the upper stretches 7 of the pipes are'held yieldingly against the floor by the metal plate 9. The late is provided with bellows like or pleated metal strips 10 at its edges through which the attaching bolts 11 extend.

It is to be noted further that the side walls continue downwardly and from lower compartment 12. These compartments are lined throughout with metal as indicated by ref-- erence character 13, and a sealed trap 14 is provided for this compartment.

' The compartments are surrounded b a thermal insulating sheet .or packin 15. his insulating material extends aroun the lower compartment 12 and each wall of the individual refrigerating compartments. Each of the refrigerating compartments is provided with a door 17 provided with a latch or key lock 18. The doors 17 for the individual compartments are also provided with a lining or packing 19 of insulating material as may be seen from figure 2. Preferably also their inner sides are provided with a metal lming 20.

R is to be noted that each door, when in closed position, is sealed with rubber gasket 21 which extends com letely around. door opening and is suitably eld in place.

Further it is to be notedthat a spring metal contact bellows like stri 22 extends around 'the vertical and bottom ,ends of the doors and is soldered or held secure to the metal lining of the compartment.

It is to be notedfurther that each compartment is which are rigidly attached to the vertical metal lining.v

Preferab y, the cabinet is provided with plurality drawers 24 which project outwardl from the face of the cabinet and in whic cubes of ice are adaptedto be frozen in the usual manner. These drawers arepreferably pbsitioned between the upper and "lower 3 which is inti- The refrigerating unit may be of any of provided with metal shelves 23 I stretch of the pipes 7 and 8 of'the refrigerating unit.

A, modified form of construction for holding the refrigerating unit in contact with the floor of the compartment is shown in Fi ure 3 from 'whichit will be seen that the 001' indicated by reference character 25 is preferably provided with longitudinally extending reenforcing metal strip 26 so that the floor as well as the lining may be made of thinner metal. Those reenforcing strips receive the end of the attaching bolts 27 which pass through the bottom metal plate 28. This metal plate encloses both the upper and lower stretch of pipe 7 and 8. The bolts 27 also pass through the corrugated or fluted metal sealing strips 29.

It is to be noted particularly that the refrigerating unit may be quickly removed for repairing without requiring any soldering or heatin It Wlll be seen also that the novel form of refrigerating apparatus has been disclosed by this invention which is suitable for use in apartment houses to" provide each of the tenants with an individual compartment maintained at a low temperature.

From actual experiments conducted with this apparatus it has been found that a very small amount of energy is required to run the ap aratus at the desired low temperature.

r ,t is to be particularly noted that although a single refrigerating unit or a battery of such unit is used for simultaneously refrigerating all of the compartments that, nevertheless, each compartment is distinct and separate from all other compartments.

It will beseen further that a novel metho of refrigerating for each individual compart-,

ment has been provided by this invention and compartments conducts by contact to the side walls and. floors of the compartments and that these metal walls and floors conduct the heat to the refrigerating unit which carries it away.

-As a single unit for household or domestic' use, 1t consumes-much less power, it requires a much smaller, less expensive motor, and can be sold to the consumer for much less than any other type of refrigerator, and due to the Although the invention has been described in considerable detail, such description is intended as illustrative rather than limiting as I the invention maybe variously embodied and as the scope of such invention is to be determined asclaimed.

I claim:

1. A refrigerating apparatus having one or more food compartments each having metal Walls, and the floor composed of a tank into which the refrigerant -is expanded directly, materials to be cooled being placed in contact with the floor or walls, the heat being removed by direct conduction and carried to the refrigerating unit, a metallic lined door and a yielding metallic connection between the door and juxtaposed walls forming an uninterrupted heat conducting contact between the door and the metallic lining of the refrigerator cabinet.

2. A refrigerating apparatus having one or more food compartments each having metal walls, a metal lined door and ayieldable metallic connection between the door and juxtaposed walls forming an uninterrupted heat conducting contact between the door and the metalwalls of the compartments.

3. A refrigerating apparatus having one or more food compartments each having metal walls, a metal lined door and a yieldable metallic elongated strip forming connection'between the door and juxtaposed walls of the compartments, forming an uninterrupted heat conducting'oontact between the door and the metal lining of the refrigerating cabinet. 7

In testimony that I claim the foregoing I have hereunto set my hand at Green Bay, in the county of Brown and State of Wisconsin,

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