US341628A

US341628A - aecher

Info

Publication number: US341628A
Authority: US
Publication date: 1886-05-11
Anticipated expiration: 1903-05-11

Description

2 Sheets-Sheet 1.

(No Model.)

LB. ARCHER.

BOILER FURNACE.

No. 341,628.- Patented May 11, 1886.

a fzarxze (No Model.) 2 shets-sheet 2".

- J. B. ARCHER.

BOILER FUBNAU'E.

No. 341,628. \1 Patented May 11, 1886.

In Vania r;

@70707 2/22 c 7-o7z 07 UNITED STATE PATENT OFFICE.

JOHN B. ARCHER, OF WASHINGTON, DISTRICT OF COLUMBIA.

BOILER-FURNACE.

SPECIFICATION farming part oil etters Patent No. 341,628, dated May 11, 1886. Application filed March 11, 1885. Renewed April 12, 1886. 'ierial No. 198,649. (No model.)

To all whom it may concern.-

Be it known that I, JoHN B. ARCHER, a citizen of theUnited States, residing atVVashington, in the District of Columbia, have invented certain' new and useful Improvements in BoilerFurnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same My invention relates to that class of boilerfurnaces in which hydrocarbon vapor or other suitable gas is used as the fuel; and'the nature thereof consists in certain improvements in the construction of the same and novel combinations of the parts thereof hereinafter described and shown.

In the accompanying drawings, in which eorresponding parts are designated by similar letters, Figure l is a longitudinal vertical section of a boiler-furnace having my improvements applied thereto. Fig. 2 is a horizontal longitudinal section. Fig. 3 is a transverse vertical section. Fig. 4 illustrates in detail a curved fire-brick tile upon the under side of the boiler. Fig. 5 is a flat tile of refractory material provided with holes for the reception of posts or pillars of refractory material. Figs. 6 and 7 illustrate a modification of the furnace shown in Fig. 1. Figs. 8 and 9 illustrate the burner.

The cylindrical tubular boiler M has on its under side a curved tile, 0, of fire-brick or other refractory material, which is provided with slots for the reception of the upper ends of the posts or pillars K. These posts or pillars rest in holes formed in the fiat tile P, and are constructed of some highly refractory material, so that they may absorb and store up the heat generated by combustion. This eombination of the boiler, the tiles 0 and I, and the posts K, is also shown in another application, Serial No. 159,366, filed by me. The gas or vapor enters by the pipe B and the air to support combustion by the pipe 0, and bot-h of these pipes are provided with valves or stopcocks,to regulate the flow of the fluids through them. A grate, A, is arranged immediately below the point at which the gas enters, upon which are placed blocks or bricks of some highly-refraetory material, while above the point at which the gas enters are arranged shelves, arches, or projections -R R, also constructed of highly refractory material. Abranch pipe, E, provided with a stop cook or valve for regulating the flow of gas, leads from the main gas-induction pipe to a burner, S,which is supplied with the requisite amount of air to support combustion from the ainheating chamberT, formed in the furnace briclcwork. The burner communicating with the hot-air chamber T may be arranged in front of the posts or pillars K, as shown in Fig. 1, or in the rear thereof, as shown in Fig. 6, and the jets of the burner may be arranged in a vertical direction, as shown in Fig. 6, or in an inclined direction, as-shown in Fig. 1. i

The construction of the burner is best shown in Figs. 8 and 9, in which V designates the gas-pipe, having a series ofjets,V, and W the air-pipe, provided with a number of cylindrical projections, XV, which surround and inclose the gas-jets in such a manner as to form annular passages for the air. The air entering through the pipe 0 passes downward through the passage D, and thence upward through the grate A and refractory material placed thereon,where it meets the gas or-vapor entering through the induction-pipe B, and

promotes its combustion. The flame thus generated sweeps in a zigzag direction about the fire-clay walls, shelves, arches, or projections R It into the horizontal flue Q.beneath the boiler, and the products of combustion after traveling the whole length of the latter pass through tubular return-fines in the boiler to the smoke-stack. The air entering the heatingchamber T passes into the air-tube W, and from thence through the annular passages surrounding the branch gas-pipes V, where it comes into contact with the entering gas and supports its combustion. The flame thus generated sweeps under the rear portion of the boiler, and thence through the tubular return flue in the boiler to the smoke-stack. 1

Having thus described myinvention, Iclaim and desire to secure by Letters Patent- 1. The combination of the boiler, the tiles 0 and I, and the posts K, as and for the purpose described.

2. The combination of the burner S, the

ICO

5. The combination of thegas and air-induction pipes or fines, the air-heating chamber T, 15 the burner S, and the flue Q, as and for the purpose described.

In testimony whereof Iaffix my signature in presence of two witnesses.

JOHN B. ARCHER.

\Vitnesses:

O. FRED. KELLER, C. S. WHITMAN.