US1026862A - Electric water-heater. - Google Patents

Description

E. M. HBNGELL.

ELECTRIC WATER HEATER.

APPLICATION PILE? DEGJIQ. 1919. 1 ,026,862. Patented May 21, 1912,

HTW', MAL .Y i

.; h yToNEyS EDWARD M. HENGELI.,v or sAN.FBANc'Isco, CALIFORNIA.

- ELECTRIC. WATER.HEATER.

To all 'whom .itmay concern; Y l '-.Be it-'known that.IEnwARD M. HENv- GELi.,'a citizen of the United States, anda resident of the city and county of San Francisco and State of California, have -invented vcertain newand usefull Improvementsl inof which the fol- Electric Water-Heaters,

- lowing is a specification.

The invention 'relates-to an electric water heater of'that class or description which is adapted to be immersedin the water sol that all of the heat generated by the-"passage of the electric current through .the resistance 'element is imparted directly to the liquid.

The objectofthe'jnvention is to provide a water heater in which the heating element is 'arranged close to the base, so that-,when placed in a vessel containing asniall quantity of water,` the` heating element will b'e entirely covered. Another objectlof the invention is to provide a heaterhaving a neat and `attractive appearance at va low ,cost of manufacture.. A

A `still further objectis to provide a heater inwhich the heating elementV isarranged in a peculiar manner, so that a large amount of wire 'is contained VV`in a small space, and so arranging the frame carrying the heating element that the water can freely circulate through and aroundV said heating element.

W'ith these and'other objects in. view, as

i will more fully hereinafter appear, the 'invent-ion consists of certain novel features of construct-ion and arrangement-ofparts'hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being in the forni; proportions, size and minor details of thestructure may be made without departl ing-frein the spirit or sacrificing any of the 'advantages of the invention.

Referring to the drawings: Figure 1 is an elevation of the heater; Figs. 2 and 3 are plan views of the two frames which 'inclose' the heating element, Fig. 2V being an inside view of one frair'ie showing in dot-ted lines the rposition ofthe hea-ting element. Fig. 4 :is a cross section of the heater showing the means of holding the heating element in place. The

heater generally consists of the two frames 2-3 between which the resistance element 4. is arranged, and by which it is held in place.\ The frames are composed of Pate-atea May 21,1912.A

Sonie tough insulation material and are preferably formed of an outer circularring 5 4having arins or bars extending diagonally across. The bars '6 in the frame 2 are provided witlrconcave recesses or grooves 7 on the underside to receive and-hold the heating element. These grooves 7 areso spaced apart that when the heating element t is arranged therein, it lies generally in the form.

of a spiral. n The bars S of the frame 3 are spaced apart in the sanienianner as those in the frame -2 with the result that .when the 'frames are placed together in the bars lie in line 8 .serving` to press and hold t-he resistance element in thegrooves 7. In this manner the resistance eleinent 1s in contact with the fr aines only at those points where it contacts with the bars. j

To provide -ineans for allowing' the water tocirculate around the heating element 4, I have provided short legs or oit-sets 9 on t-he lower side of the rini of t-he upper frame These legs 9 are preferably arranged in line with that the` openings 12 formed when fthe' fraines are placed together, occur between the bars. Then the heater is in operation, the water passes in through the openings 12 and upward between the bars 6. In some instances, when it is desirable to provide for a greater circulation,I find it advisable to arrange the short legs 14 on lthe under side of the lower frame so that the water can pass in below the frames and upward through them;

The heating element 4 consists of a helical coil ofwire of the required resistance, which is arranged in a spiral between the frames.

By'forining the heating element of helically wound wire, and then-arranging such coil in a spiral, a greater length of wire can he arranged in a given space than if the wire. were straight. The helix is so formed thatv when it is bent into a spiral, thc successive turns of the helix will not contact with each other, and thereby short circuit such turns. The ends of -t-he helix are connected to the binding .posts,or,terininals 15, on the bar G. The insulated wires 16, to the end of which is attached a plug suit-able for screwing into a socket on the supply mains, 4are attached Ato theterininals on opposite sidesof the bar 6, so that the heater will be balanced andiie their proper positions, with each other', the barsand onpthe upper side of the rim on the `lower traine.

the bars 6.v and 8, so'

substantially horizontal when held by the l resistance element and means for holding wires 16.

The frames are held together by screws assing through the holes 17 1S in the bars (3f-8, the holes on the underside of the hars S being -eoiin'l'ersunk to receive the head of the screw.

I claimal. in electric Water heater comprising a circular frame provided with diametrically disposed cross bars spaced apart vertically and a helically Wound resistance element ar ranged spirally between said cross bars.

. 9,. A11 electric Water heatervv comprising open circular frames, cross bars on said frames, the cross bars on one of said frames being recessed to receive the resistance. clement, aheli'cally Wound sprally arranged said frames together to .confine the resistance element.

3. A11 electric Water heater, comprising circular frames, cross bars on Said frames, legs' spaced apart cireumferentially of the frames adapte-d to holdlhe frames apart and to provide openings between the iframes, a helically Wound resistance clement arranged spirally hetweenvsaid "frames, the crossbars of one of said frames being recessed to receive the resistance clement7 and terminals on one of said cross bars.

, EDVVRD M, HENGELL.

lVitnesses;

H. G. Pins-c, P. S. PIDWELL.

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