US1370584A - Refrigerator - Google Patents

Description

F. L DAHLKE. REFRIGERATOR.

APPLICATION FILED APR-22, I920.

Patented Mar. 8, 1921.

UNITED STATES EATENT OFFICE.

FREDRIGK J. DAHLKE, OF DAMASCUS, OHIO.

REFRIGERATOR.

Original application filed June 4, 1919, Serial No. 301,831. Divided and this 1920. Serial No. 375,797.

To all whom it may concern:

Be it known that I, F 1112011101; J. DAHLKE, a citizen of the United States, residing at Damascus, in the county of Columbiana and State of Ohio, have invented a new and useful Refrigerator, of which the following is a specification.

This invention relates to refrigerators, and has more'especial reference to that type of refrigerators which do not require ice and in which the provision receptacle is arranged to be cooled by being lowered into a shaft and to be raised from the shaft when access to its contents is desired.

This application is a division of my application, Serial No. 301,831, filed June 4, 1919, which application has matured into Patent No. 1,349,369 dated August 10, 1920.

The objects of the present invention are to provide a provision receptacle which may be lowered into and raised from a shaft located'beneath the floor, to provide a water jacket around the shaft for cooling the interior of the shaft to provide means for circulating water through the jacket, to maintain the temperature of the shaft at the desired point, to maintain the interior of the shaft dry and clean; and to generally improve and simplify the construction of this type of refrigerator.

Vith these objects in view the invention consists in the novel construction and arrangement of parts, hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor details of construction may be made within the scope of the appended claims, without departing from the spirit or sacriticing any of the advantages of the invention.

The invention thus set forth in general terms is illustrated in the accompanying drawings forming part hereof, in which- Figure l is a vertical transverse sectional view through the device; and

2, a horizontal sectional view through the shaft.

A practical embodiment of the invention is disclosed in the accompanying drawings, forming a part of this specification in which similar numerals of reference indicate corresponding parts throughout the several views.

Referring more especially to the construction illustrated in the accompanying draw- Specification of Letters Patent.

Patented Mar. 8, 1921.

application filed April 22,

ings, the floor is indicated by the numeral 1, the shaft 2 being shown extending down from the floor to a suitable depth and provided with a water jacket 3, radial walls 4: being located at intervals between the shaft and the water jacket for the purpose of bracing the structure, these Walls being provided with apertures 5 to allow the water to circulate through all of the compartments 6 thus formed.

It should be noted that one compartment 7 does not communicate with the adjoining compartments, but communicates with the lower extremity of the shaft by means of the aperture 8, a similar aperture 9 being formed in the outer wall of this compartment adjacent the floor. A screen 10 is placed over the aperture 9 for the purpose of preventing dirt or insects from entering the shaft. Air is thus admitted into the interior of the shaft from the outside and as the provision receptacle is lowered into the shaft the air displaced will be forced out through the compartment 7.

The shaft is located beneath the aperture 11 formed in the floor which aperture is closed in any suitable manner as shown and described in my co-pending application above referred to. V V

The shaft is built of any suitable material preferably of concrete tiles. For the purpose ofadmitting water to the jacket, a pipe 13 communicates with one of the compartments 6, said pipe leading to a suitable source of water supply either a pump, cistern or the like. An outlet pipe 1 1 communicates with one of the compartments 6, preferably upon the opposite side of the water jacket. It will be seen thatthe water within the water jacket may be changed as often as desired, fresh water being admitted through the pipe 13 and allowed to circulate around the jacket, the stale water overflowing I through the pipe 14, which pipe leads to a suitable drain. The temperature of the interior of the shaft may thus be maintained at the desired point while the interior of the shaft remains dry.

The provision receptacle is mounted for vertical movement upon the track 15, which track is mounted within the shaft and extends up through the opening in the floor for a sufficient distance to allow the provision receptacle to be moved out of the shaft and above the floor level.

' tacle and preventing odors of food in one upper end of the receptacle.

her comcompartment from passing to the ot partments.

j The receptacle is mounted upon a bracket "21, said bracket being provided with a pair of rollers 22 having annular flanges 23, which engage opposite sides of the track 15, thus preventing lateral movement of the receptatcle with reference to the track. A similar pair ofpulleys 22 is mounted at the v For the purpose of raising and lowering the provision receptatcle within the shaft a drum 26' is mounted within the wall 27, a cable 28 being wound around said drum and connected to the bracket 21 which carries the receptacle, said cable being passed over suitable pulleys '29. tremit-y of the cable extends downinto the The other excompartment 7 and is provided with a counterweight 30 to balance the weight of the refrigerator,

It will be seen that a refrigerator is thus provided which is not unsightly, as when the provision receptacle is lowered into the shaft and the trapdoor closed the only portions of the device appearing within the room are the upper portion of the track 15 which is located against the wall, and the crank 31: by means of which th'e drum is operated, The shaft within which the receptacle is lowered is dry and at the same time is maintained at the proper temperature by means of the water circulated through the water jacket and the receptacle proper is so constructed that each compartment is shut off from the remainder of the receptacle, thus making it possible to keep various kinds of food within the receptacle without danger of their becoming contaminated with theyodor of other foods kept therein. 7'

Although the drawingsand above specification disclosethe best mode in which I have contemplated embodying my invcntion, I desire to be not limited to the details of such disclosure, for, in the further practical application of my invention, many changes in form and construction may be made, as circumstances require or experience suggests, without departing from the spirit of the invention, within the scope of the appended claims.

I claim 1. A device of the character described comprising a shaft closed at its lower end, a jacket located around said shaft, an air compartment formed in said jacket and communicating with the interior of the shaft and with the outside atmosphere, said air compartment being cut on from the remainder of the jacket, and means for circulating water through the remainderof the jacket, and a provision receptacle vertically slidably mounted within the shaft.

2. A device of the character described, comprising; a shaft closed at its lower enc, a jacket located around the shaft and divided into compartments, one of said compartments being cut off from the remainder of the jacket and formin an air compartment and communicating with the interior of the shaft and with the outside atmosphere, the remaining compartments communicating with each' other. and means for circulating water through said remaining co1npartments and a provision receptacle verti cally slidably mounted within the shaft.

A device of the character described comprising a shaft closed at its lower end,

jacket surrounding said shaft, spaced radial walls connectingthe shaft and jacket and; forming compartments around the shaft, one of said compartments communicating with the interior of the shaft and with the outside atmosphere, the remaining compartments communicating with each other through spaced apertures formed in the radialwallsand means for circulating water through said remaining compartments and a provision receptacle slidably mounted within the'shaft.

4. A device of the character described, comprising a shaft closed at its lower end, a jacket surrounding the shaft, a plurality of'compartments formed in said jacket, one of said compartments being cut off from the remaining compartments and communicating with the interior of the shaft and with the outside atmosphere, a provision receptacle slidably mounted within the shaft, a counterweight for the provision receptacle suspended within said cut-off compartment, the remaining compartments communicating with each other and means for circulating water through said remaining compartments.

In testimony that I claim the above, I have hereunto subscribed my name,

FREDRICK J. DAHLKE.

Images