US224048A - smith - Google Patents

Description

H. SMITH, Jr. VRefrigerator Building. No. 224,048.

Patented Feb. 3, 1880.

N. PETERS, PHOTOMTHOGRAFHER, WASHINGTON. Dv C.

UNITED STATES PATENT OEETCE.

" REFRIGERATOR-BUILDING.

SPECIFICATION forming part of Letters Patent No. 224,048, dated February 3, 1880.

Application filed October 10, 1879.

To all whom it may concew: u

Beit known that I, HENRY SMITH, Jr., of the city of Baltimore and State ofv Maryland, have invented certain Improvements in Refrigerating-Ghambers, of which the following is a specification; and I do hereby declare that in the same is contained a full, clear, and exact description of my said invention, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention has reference 'to improve- .ments in the apparatus employed in connection with a body of ice vsituated at the upper part of the building wherein the refrigerating'chambers or rooms are located, to effect a cool and dry `atmosphere in the said chambers or rooms, and one that can be rapidly changed in temperature, as may be desired by the attendant, as will hereinafter fully appear.

In the further description of my' invention which follows reference is made to the accompanyin g drawings, forming a part hereof, and in .which-- Figure I is a sectional elevation of a building containing two of my improved refrigerating-chambers, and Fig. II a sectional plan of the same on the dotted line w y.

Similar letters of reference indicate similar parts in both views,and arrows denote the direction of the various currents of air in the pipes forming a part of the apparatus.

Aand B are the refrigerating-chambers, located in a building directly below a body of ice which rests upon a slatted iloor, C. A drip-pan, D, serves to collect the water result ing from the melting of the ice, and an overflow-pipe, a, conducts it, when it shall rise to a certain height in the said pan, to any convenient place either exteriorly or interiorly of the building. A second pipe, b, is used when the entire body of water in the panD requires to be drawn ofi".

E is a stack designed to enforce the circulation of air-in the refrigeratingchambers, as hereinafter described. The lower end of the stack is in communication with the outer air by means of the lateralopening c, and the upper end of the stack is provided with a' suitable cap to assist in establishing the regular current in the same.

The pipe which is employed to conduct cold air to the refrigerating-chamber is represented by F, and it commences in the stack at a point preferably below the slatted floor of the icechamber, and, after extending to about the top of the ice-chamber and into the same, passes to belowrthe slatted door and branches to the refrigerating-chambers'. The draft inthe stack E is controlled by means of a damper, d, and the inlet end of the cold-air pipe F is provided with a similar device, c, which is operated from any convenient part of the building.

The building is further provided with ventilating stacks or shafts, with which the refrigerating-chambers are in communication, and the openings for this purpose are `represented by f, and the registers `by means of which they may be closed by g.

Supposing the ice-chambers to be stocked with ice and the temperature of the air eXteriorly of the building too high for the preservation of meats, 8vo., the danipers d and e and the registers g are opened, when the air in the vertical portion of the cold-air pipe within the ice-chamber falls, owing toits superior weight, and is conducted to the refrigerating-chambers. The movement of the air in the cold-air pipe is accelerated by the draft in the stack E and the dripping of cold water from the@ ice upon it and its branches, and further by passing through a cold atmosphere which must necessarily be established below the slatted iioor C.

rIhe cold air, upon entering the refrigeratingchamber, falls to the iioor of the same and ldisplaces the warmer body of air, which escapes by means of the openings f. This circulation of air in the refrigerating-chambers continues until thev temperature of the same is about equal to that in the vertical portion of the coldair pipe within the ice-chamber, or until the damper d is closed, when it ceases. Any temperature higher than the eXtreme one effected, as, described, and below that of the exterior air, may be obtained by regulating the various dampers and registers before alluded to. The building is provided with doors for the introduction of "ice, and others to admit of access to the different parts thereof, and the various chambers are lined with non-heat-conductin g materials to lessen the drain upon the ice.

By means-of this apparatus it will be understood that the cooling-air admitted to the re- IOO ` of pipe in the ice-chamber of a refrigerator,

arranged for that purpose into the coolingfri gerating-chambers is taken from the exterior of the building, the air in the ice-chamber, which may be laden with impurities, being isolated therefrom. The drain on the ice is also much less, as only sufticientice is melted to give the required temperature to the refrigerating-chambers.

I am aware that it is not new to place a coil upon which coil the ice rests, and throughn which air passes to be cooled on its Way to the provision-chamber. I am further aware that in refrigerators an air-chamber has been constructed beneath the ice-box, for cooling theL- air which enters the provision-chamber situated immediately below, and that the air, upon entering the refrigerator, passes along a pipe chamber, Where it is cooled, and by reason of its superior specific gravity falls to the bottom constructions, therefore, I do not claim; but,

Having described my invention, what I claim as new, and Wish .to secure by Letters Patent of the United States, is-

As an improvement in refrigeratin g apparatuses, the following elements in combination, viz: the refrigerating-chambers A and B, located below the slatted ice-flo'or G, drip-pan *12, stack E, cold-air pipe F, and suitable means frigerating-chambers, substantially as herein described.

A lnitestimony whereof I have hereunto subscribed my name this 8th day of April, A. D. 1879.

HENRY sMiTH, JR.

Witnesses WM. C. N icHoLLs,

of the provision-chamber through a channel JNO. T. MADDOX.

for carrying off the warm air from the said re- Y provided at its rear for that purpose; and such

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