US353216A

US353216A - Furnace

Info

Publication number: US353216A
Authority: US
Publication date: 1886-11-23
Anticipated expiration: 1903-11-23

Description

(No Model.) v 2 Shs,8heet 0. H. G-RBWOOX & F. YEITER.

FURNACE.

Patent-ed Nov. 23, 1886.

C. H, GBEWOOX & P. YEITER. FURNA'GH' No. 353,216. Patented Nov. 23, 1886.

(No Model.) 2 Sheets-Sheet 2,

NY PETERS, Phowi'rthographur. Washington, 0. c

UNITED STATES PATENT OFFICE.

CHARLES H. GREWCOX AND FRED YEITER, OF BRAINERD, MINNESOTA.

FURNACE.

SPECIFICATION forming part of Letters Patent N0. 353,216, dated November 23, 1886,

Application filed May 18, 1886. Serial No. 202,547. (No model.)

To aZZ whom it may concern:

Be it known that we, CHARLES H. GREW- COX and FRED YEITER, citizens of the United States, residing at Brainerd, in the county of Grow Wing and State of Minnesota, have invented certain new and useful Improvements in Furnaces, of which the following is a specification, rel'erencebeing had therein to the accompanying drawings.

Thisinvention has relation to improvements upon ourimproved smoke-consuming furnace for which Letters Patent were granted to us September30,lS84,No. 305, 918, the presentinvention having reference more particularly to the appliance proper for consuming the smoke or other products of combustion; and it consists of the combination, with the furnace'wall, including the bridge-wall thereof, wherein air inlets or passages are provided, of steam-injecting pipes arranged in different planes of elevation and adapted to inject steam into the furnace-chamber, substantially as hereinafter more fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a boiler and its furnace with our invention applied thereto, a portion of the side wall of the furnace being broken away and its front and bridge wall being shown in section. Fig. 2 is a front elevation thereof, and Fig. 3 isasectional elevation taken on the line as a: of Fig. 1.

In carrying out our invention we construct the front wall of the furnace with an air-passage, a, with its lower ends connecting with air-inlets a a at the lower front end of the furnace, one near each side, which passage extends up over the door-openings and connects at a point about intermediately of the said door-openings and at the upper corners of said passage wit-lithe combustion-chamber by short pipes a A11 air-passage, b, is provided in the bridgewall B, which connects the inlet 1) with the horizontal passage, with which the short pipes b opening in the combustion-chamber, connect.

Ois a steam-pipe connecting with the steamdome of the boiler, and branching off into arms 0 c, which extend. down at one side of the furnace, one arm connecting with a pipe, 0', extending along and continuously to the front of the furnace, and having a number ofjet-pipes, d, projecting into the short pipes a while the other arm of the pipe 0 connects with a pipe, 0 extending into the horizontal portion of the passage a, and having a series ofjet-pipes, e, which project into the short pipes b It will be observed that the two series ofjetpipes d e are arranged in different planes of elevation, the front series, d, being preferably the higher, whereby thejets of steam issuing therefrom into the con'ibustion-chaniber will, instead of meeting, as would otherwise be the case, pass each other and set up a continuous circulation of air-currents, as indicated by the numerous arrows, and thnsproduce a strong suction at the air-inlets both at the rear and front of the furnace, which will create an in creased draft to the fuel, to effect thethorough consumption of the smoke andother liberated products of combustion.

\Nhat we claim is- 1. In a smokeconsuming furnace, the combination, with the fire-box and front and rear steam-pipes, of the front wall having an airpassage connecting with an air-inlet in said wall and with the combustion-chamber above the grate, a transverse bridge-wall having an air-passage connecting the air-spacein the rear of said wall with the combustionchamber, substantially as shown and described.

- 2. In a snioke-consuming chamber, the combination, with a steam-pipe and acombustionchamber having an air-passage in its front wall and an air-passage in its bridge-wall connecting the space in rear of said wall with the combustion-chamber, of the two series of steam-jet pipes disposed in different planes of elevation and projecting into short pipes of said air-passages, which pipes open into the combusti0nchamber, substantially as and for the purpose set forth.

In testimony whereof we aflix our signatures in presence of two witnesses.

CHARLES H. GREYVCOX. FRED YEITER. Witnesses:

WILLIAM LOUIS KELLY, WILLIAM LoUIs KELLY, J r.