US116019A - Improvement in steam-engines and boilers - Google Patents

Description

UNITED STATES PATENT OFFICE,

GOTTLIEB F. BURKHARDT, OF BOSTON HIGHLANDS, MASSAOHSETTS.

liMPRovEwIENT |N STEAM-ENGINES AND Bo-ILERS.

Specification forming partv of Letters Patent No. 116,019, dated J nne'QO, 1871.

"the drawing which accompanies and forms part of this specification, is a description of myinvention sufficient to en able those skilled in the art to practice it.

The invention relates to the method of utilizingexhaust steam from steam-engines, or to the construction and arrangement of the auxiliary boilers with reference to the main boiler and the engines.

The drawing represents a construction and arrangement embodying my improvement.

Figure 1 shows the parts in front elevation. Fig. is a plan. Fig. 'is a side elevation of them.

a denotes the main boiler. b is an enginecylinder,A supplied with steam from the boiler a through a pipe, c. d denotes the exhaustpipe from this cylinder, and this exhaust-pipe leads into a steam-chamber, e, in the upper part of a tubular boiler, f, from which steamspace'opens a series otyertical tubes, g, leading through the boiler and into a steam-chamber, h, in the lower part thereof, from which space the-steam passes (by means of a pipe, j) into a steam-space, i, at the top of a condenser,V 7c, having tubes through which thel steam passes, and from which they condensed steam tlows (through a pipe, my) into the Water-supply tank or well. The water-spaces around these tubes in the auxiliary boiler f and condenser 7c are kept supplied with Water by a suitable pump,

-Whicli forces Water through the condenser lc cylinder o exhausts; (by a pipe, 13) into the exhaust-pipe d, so that the steam from both cyl-` inders passes into the steam-space e at the top of the boiler f. Extending through the boiler f are vertical flue-pipes s, which extend from a lire-box, t, (below the boiler,) through the boiler into a Hue-chamber, u, over the boiler, from which chamber a lue-pipe, o, leads, such pipe o conveying the smoke and volatile products of combustion into a iiue, w, leadinginto the chimney x. The pipe t' extends down and 'communicates With a pipe,z, leading from the .fire-box of the main boiler 'into the lire-box of the auxiliary boiler, and by closing and opening the respective dampers-t-he tire in the main tire-box maybe carried through the flues of the auxiliary boiler; or, vice versa, there from the auxiliary lire-box may be conducted underl the main boiler-fines. y y

By this 'arrangement of an auxiliary boiler and an auxiliary tire-box and ilues it will be obvious that all of the heat of the exhaust steam may be Vutilized to heat the Waterin the auxiliary'boiler, and, with the heat from the auxiliary tire-box (or with heat from the main iirebox,) to convert the Waterinto steam,which, by means oit-t he pipe l, may be used to run the en gine-,f-andthat such exhaust steam may also be used to heat (the Waterof supply, or to heat Water for yarious other uses.

The steam-from the auxiliary boiler may be conducted into the steam-room of the main boiler 5- but I preferto' use it in driving the e11- gine-cylinder 0.

I claim-' 1. In combination with the main boiler and 'l engine, an auxiliary tubular boiler, f, arranged as shown and described, and having a ser1es v of steam-tubes leading through it, `surrounded by `a Water-space, above which space is a steam- Y 3. The arrangement of the auxiliary re-box aime-pipe fu, cylinder f, and line-pipes z w, substantially as shown and described. Y

GOTTLIEB EBURKHARDT.

Witnesses:

FRANCIS GOULD, M, W. FROTHINGHAM.

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