US978339A - Cooler. - Google Patents

Description

M. A. SIMMONS.

COOLER.

APPLIoATIoN FILED 11:11.24, 1910.

978,339. Patented Dec. 13,1910.

WIT/V555 [NI/ENTOR j? I MBZ:

.v MARCUS a. si'MMoNs, or YEAGER, oxL/ipiaa.,

COOLER.

speciaation of Letters Patent. Pi-,eted Dec, 13, 1910,

vApplication' alea rebruary a4, 1910. serial No. :Arterialy f To all whom 'it may concern: n

Be it known that I, MARCUS A. SIMMONS `a resident of Yeager, in the county o Hughes and `State ofOklahoma, have invented certain new and useful Improvements in Coolers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art t`o which it pertains to make and use the same. This invention relates to coolers for producing and maintaining low temperature in any desired inclosure, such as a food box, storage room, or the like.

- The main object of the invention is to providesuch a cooler of high efliciency, and simple and economical both in construction and operation.

Theinventihon consists iirthe construction hereinafter described, and particularlypoint- -ed out in the claim.

:prises a body composed of walls of several thicknesses, as shown at 3, 4 and 5, (although there may be more than three thicknesses). In the s ecial form illustrated walls 3 and 4 constltute the sides, ends and bottoms of wooden boxes, one within the other and separated to form an air space 6 which may contain either air only, or a suitable loose material such as mineral wool adapted to hold a large quantity of air. Or space 6 may be filledwith other suitable insulator or poor conductor of heat. It is not essential that these walls be of wood, and it is proposed in some cases to make the outer thickness 3 of cement and of considerable thickness. The inner thickness 5 of the walls is formed by a comparatively thin sheet metal box, the interior of which is divided into three air and water tight compartments 8, 9 and 10 by two sheet metal partitions 11 and 12. Between the inner wall 5 and the next outside of it is an air space 7 of the same character as space 6.

The tops of these airspaces betweenl the boxes are tightly closed: byfstrips 13.

As shown, box 5 is provided with three hinged covers 14, one for each compartment, and each adapted lto close its compartment air tight and also to be' opened and 'closed separately. Saidfvcoversl are preferably made of severallayers of Wood separated by layers of heavy paper 14.` The edges of the covers are of stepped formand closely fit corresponding stepped bearings inthe top of the cooler,'the lgoints bein packed. `The covers may be secured closed-Ey friction only or by any usual fastener device.

Secured in compartment Sis a rotary air pump or blower 15, the shaft of which extends to the outside where it has a driving pulley or device'l operable fbyi hand or by any suitable power. From ythe blower a pipe or passage 17 communicates with the inclosure 1 yto be cooled, and froml said inclosure a pipe 18 extends through the lower part of compartments y8 and 9 into com artment 10, where it is carriedup towar but not quite to the top, but far` enough to prevent Water and ice from gettin yinto it. In use compartment 10 is filled with blocks of ice in considerable quantities, and at the bottom thereof is .a water draw-oil' pipe 19 normally closed.

In the central compartment 9 is supported a coiled iron or other suitable pipe 20 having more or less turns according to the size and .water, and packed at 22. In use compartment 9 contains ice and salt or othersuitable freezing mixture.

23 is a water draw-oil" pipe.

Operation: Compartment 10 having been char ed with ice, and 9 with ice and salt in suita le proportions, as common in cooling mixtures, blower 15 is driven causing air to circulate as indicated by arrows in Fig. 1. that is from the blower to the inclosure to be cooled, and by pipe 18 through compartments 8, 9 to compartment 10 where it is discharged from the pipe and passes through or over and indirect contact with the ice, being made as dry com and pure as ice can make it before passing into and through coil 20 submerged in the ,freezing'mixture `From the coil the extremely cold air is dis,

' of the time as required to maintain the de- When first begin-- sired low temperature. ning the air takenl from inclosure 1 will be warm, especially `if warm meats or vegetables, for example, have been recently placed therein, and in such case it is desirable to discharge air from pipe 18 into the open air for a short time, not sending it through the cooler, and this can be done .by leaving the pipe disconnected from the cooler at 18() and later closing such connection. But ordinarily this 1s notnecessary since the air if sent directly to the cooler is deprived of the greater part of its :warmth in passing through the cooler before it 'reaches the ice chamber. Owing tothis preliminary cooling-of the air the ice will melt but slowly inf the ice chamber, and the air passing throughcoil 20 being as cold as ice alone will make it will not rapidly exhaust the freezing mixture, and ice and salt need only be added at long intervals.

In practice the metal partition 11 of chamber 8 is heavily coated with frost, and this forms a convenient yindication that the device is Working properly. When this coat of frost begins to disappear it shows that saltor ice or both are needed.

Evidently if desired space in the first I chamber not occupied by the blower may be used as a refrigerator for any articles at' the same time thatinclosure 1 is being cooled, or independently thereof. Also that water bottles or -the like-can be frozen in chamber 9, though these. uses are merely incidental..

It is sometimes found desirable to close the pipe 18 where it issues from the cooler,

the outside pipe being disconnected, and any suitable stopper or device is provided for the purpose.

Having thus described the invention what I claim is A cooler comprising three compartments,

a blower in one of said compartments an outlet from the blower to the'exterlor of the cooler, an ice compartment in the cooler, a4

freezing-miXture-compartment in the cooler, an air-intake-pipe extending through the blower-compartment and the freezing-mixture-compartment and communicating with MARCUS A. SIMMONS.

Witnesses:

C. M. CATLIN, RoB'r. T. LANG.

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