US434500A - Thermo-electric generator - Google Patents

Description

(N0 Mddel.)

H. B. 00X. THERMO ELECTRIC GENERATOR.

351 A 7:8 GH 14mg ym-incAmie (C Q m UNITED. STATES PATENT OFFICE.

sunny 'BARR NGER cox, OF HARTFORD, connsc'r'i'cnr.

TH'ERMO-ELECTRl-G GENERATOR.

srncmoariox formingput of ne new rm 434,500, dated August 19, 1890,. I Application filed June 18, 1890- Berlal No. 965,800- (No model.)

To all whom it may concern.-

-Be itknowh thatI, HARRY BARRINGER Cox, of Hartford, in the countyiof Hartford and State of Connecticut, have invented certain new and useful Improvements in Ther'm'o Elec ric Generators; and I do hereby declare --.that the following, is a full, clear, and exact description of the invention,which will enable others skilled in the art top'hich it appertains to make and use the same,. reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon, which form part of this specification.

This invention relates to certain improvements in thermo-electric generators.

The ohject'of the invention is to improve the construction of theme-electric generators, part icularly to'increase the heating-surface thereof.

These objects are accomplished by,-and this invention consists in, certain novelfeatures of construction, and in combinatijons of parts more fully described hereinafter, and particularly pointed out in the claims.

The accompanying drawing represents a plan of a'pile.

This invention is an improvement on the generator of my application for thermo-elec- Y tric generators, dated January 9,1890,Serial- No 336,339, wherein the pile is composed of a seriesof rings laid one on the other, with in-' sulating' material 'between the rings, being clamped together to form a tight cylinder, each ring being composed of a series of couples unitedtogether, and all the rings being electrically connected in one circuit. A fire-pot or other source of heat is located at one end of the cylindrical pile, and the-interior of the pile-subject to the heatof the fire and formed by the inner ends of the elements, is coated with fire-proof cement or other suitable material.

In the drawing, a and 5 indicate the unlike elements of each couple composing the ring shown, all connected in the one circuit, as shown, andhaving terminals 1 2. Each large element is provided with 'one or-more .con-

dnctors or radiators c,-electrically connected with thesame between'the hot and cold junctions thereof and extending out in the direction of the, cold junctions. The inner ends, j

of the elements are coated with fire-proof. cement d or other suitable material. -It should be observed that the inner ends of these couples or elements are so shaped and placed together that it enables me to so coat the same with cement'that the interior of the cylinder forms a longitudinally fluted orcorrugated cylinder, asshown, ingbeveled off on one side of its inner end, as shown, so that the grooves or corrugations eextend in between the ends of the adjoineach large element be-' ing couples. This corrugated or fluted surface very materially improves the draft and exposes to the heated products of combustion a much larger surface for the absorption of the heat.

In practice in the construction of a generaior, as herein described, a series of rings,

, such as illustrated, are piled one on the other and, separated by suitable insulating niateg rial and firmly bound'together. The interior surface and spaces betweenthe elements is walled up with some fire-proof cement or clay. In coating the face of the generator at sufl icient thickness of cement is applied; but it is aimed to follow the outline of the interior as originally formed. After this cement has been placed, as described, it is allowed to set or harden; then a slow heat is applied, and finally a high temperature which has the effect of vitrifying the same, and making a hard, compact, and fireproof coating for the intellOl'; 5

The conductors cproduce a fall in thermic potential in the circuit. It is evident that various slight changes might-lee made in the form and arrangement of the parts described without departing from the spirit and scope of my invention; hence I do'not wish to limit myself to the precise construction. herein set forth. What I claimis Y 1. A thermo-electric generator having its surface exposed to the heat coated with fireproof material and fluted, corrugated, or other wise irregular, substantially as and for the out. or clay, substantially as described.

3. cylindrical thermo-pile having its inner surface coated with fireand fluted longitudinally,

4. A thermo-electric generator having the inner gun-face of the couples embedded in or -5 eoated'with fire-proof ma ductors or radiators in the i ng oatwardlyfrom said 00 hot and'eold junctions t thermic potential, snbsta proof m ate j'ial as set forth-J circuit and extend uples between their 0 produce a {all in ntially as described.

terial, and the'con- Q In tosti lnon my own Iafix Wltnessebi O. E. DUFFY,

C. M.-Wmm.i:.

HARRY BARRINGER COX.

y that I eiaim the foregoing as no

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