US271813A - Evaporative cooler - Google Patents

Description

. 2 Sheets-Sheet 2,

(No Model.)

G. W. DEII'ZLER. EVAPORATIVE COOLER.

' Patented Peb. 6, 1883.

UNITED STATES PATENT OFFICE.

GEORGE W. DEITZLER, OF SAN FRANCISCO, CALIFORNIA.

EVAPORATIVE COOLER,

SPECIFICATION forming part of Letters Patent No. 271,813, dated February 6, 1883.l

, Application filedJnne19,1S82. (No model.)

following to be a full, clear, and exact description thereof.

4My invention has reference to that class Vof coolers in-which lthe reduction of temperature is produced by evaporation; and it consists essentially in devices and process for delivering water to the evaporatingsurfaces automatically as needed, and so as to prevent waste.

Figurel is a perspective viewof a buttercooler. Fig. 2 is a-vertical section of the same. Fig. 3 is a modification in perspective. Fig. 4 shows the application of the cooling device to a dairy or other room. y

I do not restrict myself'to any particular form, size, or positionot' said coolers or evapmating-surfaces..

In Figs. 1 and2 l represent a vessel, A, which may be made of metal or other suitable material. A gutter or trough, B, for containing water, is attached to it at the top, and said vessel is surrounded with Turkish toweling or other bibulous material, C, the upper margin of which vis turned down into said gutter or Y side of the cover, as Well as any gases in said vessel, will pass over into the water in'said trough and out through the holes d in the lower edge ot' the rim ot' the cover, which holes will always be below 4the water-line, lthus eX- cluding air and dust from the vessel A.

I construct a water-tank, E, of suitable size, and connect it with the trough B by means ot' pipe e, having a faucet,f, and a unioncoup ling, c. The upper end of said watervtank has an opening, g, which is tted with a screwplug. b. i The operationof my invention is as follows:

'After closing the faucet f,`I iill the tank E with water and then adjust the screw-plug b, n1aking it perfectly air-tight. The faucet f is now opened, and the water runs over into trough B,

in which it rises alittle higher than the top of pipe c, when it becomes eiectually trapped by atmospheric pressure. The edges ot the bibulous covering C being below the water-line in trough B, the water is carried over the rim of said trough by capillary force, thus saturating said covering, and when the water has been lowered in'said trough by said capillary force to about the center of pipe e, as shown by dotted line l, air will naturally pass up into the tank E, which will again force the water into the trough, as at rst, and in this way the operation will be repeated as long as there is any water in the tank at or above the dotted line l, the trapping and untrapping being wholly automatic. The toweling on the cover of vessel A will also be saturated by the sameprocess.

Should water be drawn over faster than itis needed for the process of evaporation, the ring H may be inserted', as shown, and by pressing it down the iow of water may be regulated, and thus prevent dripping. 1t will now be understood that the evaporation ofthe moisture from the outer surface of vessel A will reduce the temperature within said vessel, in which milk, butter, 85o., maybe stored and `preserved in the hot-test weatherwithout the use oi' ice or other coldproducin g operation or process. By placing the apparatus in a cuv- -rent of air the Vevaporation will be increased and the cold augmented.

Fig. 2 is ainoditication ofthe cooler, and is designed for the storage of meat, 85e., as in an ordinary domestic refrigerator. llt is made ot' metal or other suitable material, lat on the sides and back and front, and of circular shape on top and bottom, with a door in front, as shown.' 1

The whole of the structure is covered with bibulous material, for the purposes described, and on the top is a gutter or trough, B, in which thebibulous material is immersed and held down by any suitable means, and water is supplied to said trough through pipe e, as shown, and as described in Figs. l and 2. The inside of this refrigerator is fitted-with shelves, and in the bottom is a compartment for cooling water or other liquids.

Fig. 4 shows a device for cooling the air of apartments. B B are'me-tal gutters or troughs,

IOO

"nieai'is, and of any desired 'length and apart. The pipe 'e connects the troughs and supplies them with water from a tank, all arranged, constructed, and operated as described, 'and as shown in Figs. 1 and 2.

y The'lurhish toweling or other bibulous Ina- 'terial,'0, is suspended over the troughs, being i'pressed down and held in the water by a wire or string stretched lengthwise through said troughs. The towels G are made taut, and held apart at the bottom by wooden strips of the same diameter as the trough'. This device is placed in a housing, F, having ingress and egress ducts for the passage ot' air. The air which may be caused to pass over Vsaid moist towels will have its temperature greatly reduced, and may be forced. to flow with great advantage into and through a dairy or other room by interposing such room between the housing F and the chimney G, as more fully described in Patent No. 247,020, granted t0 me September 17, 1881.

This device may be used, also, for evaporating saline and related solutions.

I am aware that cooling by evaporation is not new, and vessels covered by bibulous substances' moistened by Various means have been used for cooling butter, Sto., and I do not claim broadly such process or apparatus; but

What Iclaim as new, and desire to secure by Letters Patent, is-

1. In a refrigerating or cooling apparatus, the chamber A, with the gutter or'gutters B, and the surrounding porous or bibulous material dipping into the gutter, in combination distance with the supply-tank and the pipe e, substantially as and for the purpose herein described. 2. In a refrigerating or cooling apparatus,

the chamber A, with its surrounding porous or bibulous material dipping into the channels or gutters B, supplied with water autovmatically through the pipe e, in combination' with the tapering ring F, whereby the supply of water foreva'poration may be regulated, substantially as herein described.

3. In a refrigerating or cooling apparatus, the chamber A, with the surrounding porous material dipping into the water-supplied chan-- nel or gutter B, in combination with the con- Vex or arched roof or cover D, with the rim or flange perforated at d, and extending into the channel or gutter B, said cover having a porous envelope which dips into the channel, substantiallyas herein described.

4. ln a coolingapparatus, the automatic process of supplying water to-evaporating-surfaces by means ofthe supply-tank E, the faucet f, pipe e, and gutter B, substantially as and for the purposes described and specified.

5. A meansot' supplying waterautomatic illy to eVaporating-surfaces in a cooling apparatus, consisting ot' the supply-tank E, pipe e, gutter B, and faucet f, substantially as and for the purposes described.

In witness whereof I hereunto set my hand.

S. H. NoURsE, G. W. EMERSON.

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