US108604A - Improvement in steam-generators - Google Patents

Description

" NrTED STATES PATENT OFFICE.

TRUOKSON S.. LA FRANCE, OF'ELMIRA, NEW YORK.

IMPROVEMENT lN STEAM-GENERATORS.

Specification forming part of Letters Patent No. lw. dated October 5,1870.

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Be it known that I, TEUcKsoN S. LA FRANCE, of Elmira, in the county of Ohemung and State of N ew York, have invented a new and Irnproved Steam-Generator; and I do hereby declare that the following is a full, clear, and exact descrip tion thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming,` part of this specification, in which- Figure l represents a vertical central section of my improved steam-generator. Fig. 2 is a horizontal section of the same, taken on the plane ofthe line a: w, Fig. 1. Fig. 3 is an inverted plan view of the tire-box.

Similar letters ot' reference indicate corre sponding parts. y

My invention relates to steam-generators; and it consists in certain improvements there# on, which will first be described in connection with all that is necessary to afull understanding thereof, and then clearly specified in claims.

A in the drawings represents the outer case or shell of the boiler. B is the tire-box within the same. lIhe tire-box is cylindrical, and is set up in the lower part of the case A, so as to leave an annular Water-space, a, around it, and a full water-space, b, above it.

From the top plate, c, of the tire-box is suspended a series of pipes, C O, into the fire, the said pipes being closed at their lower ends, and provided with internal tubes or partitions for circulation. The smoke-pipes D D project from the top plate, c, upward into the head d of the boiler. The head is sunk or depressed to form a smoke-chamber, e, as shown, and around its vertical side f an annular steam-chamber, g.

Within the smoke-'chamber e is set upa superheating dome or vessel, E, whichA is open By means of the chamber g and dome E, I

obtain considerable superheating-surface and an arrangement for utilizing1 the entire heat of the smoke previous to the escape of the latter.

Additional circulating-pipes F F may be arranged on the inner sides of the tire-chamber.

They communicate at their upper and lower ends with the water space a, as is clearly shown in Fig. 1. I obtain thereby a complete circulation in the lower part of the boiler.

Having thus described my invention, I claim as new and desire to secure by Letters Patent l. The dome .E, chamber g, and pipes h, combined and arranged with water-space b, as specified.

2. The combination of steam-chambers E g and smokechambere,when relativelyarranged as and for the purpose described.

3. The tire-space B, water-spaces a b, pipes C, smoke-spaces D e, and superheating-spaces E g h, all combined and relatively arranged as and for the purpose described.

TRUGKSON S. LA FRANCE.

Witnesses:

N. P. FAssEr, JEROME B. WHITE.

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