US348315A

US348315A - Steam-boiler

Info

Publication number: US348315A
Authority: US
Publication date: 1886-08-31
Anticipated expiration: 1903-08-31

Description

(NoModel.) 2 Sheets-Sheet 1.

F. 0. BURROWS.

STEAM BOILBR.

No. 348,315. Patented Aug. 3l, 1886.

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(No Model.) 2 Sheets-Sheet 2.

F. o. BURROWS.

STEAM BOILER.

No. 348,315. Patented Augfl, 1886.

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FRANCIS O. BURROVS, OF CLEVELAND, OHIO.

STEAM-BOLER.

SPECIFICATION forming part of Letters Patent No. 348,315, dated August 31, 1886.

Application filed February 23, 1886. Serial No. 192,962. (No model.)

To @ZZ whom, it' may concern:

Be it known that l, FRANCIS O. BURRoWs, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Steam Boilers, of which the following is a specication.

This invention relates to steamboilers; and it consists in certain peculiar features of construction and arrangement of the parts, as hereinafter fully described, and pointed ont in the claims.

In the accompanying drawings, Figure l is a frontend elevation, and Fig. 2 is a rear end elevation, of my improved boiler. Fig. 3 isa cross-section, and Fig. et is a longitudinal and vertical section, of the same.

The nature and objects of the invention will fully appear from the subjoined description, when considered in connection with the drawings.

A represents a cylindrical casing or jacket, in which is contained all the parts comprising the boiler and its heating-furnace.

B is a cylinder comprising the combustionchamber. It is about two-thirds the diameter of the outer cylinder, A, and about threefourths its length. To the rear of the said cylinder B is annexed an enlarged sub-chamber, C, the crown of which stands higher than the crown of chamber' B, and is flattened across its top portion. This double combustion-chamber is secured within the aforesaid outer cylinder by means of stay-bolts bb, joining the heads of the two cylinders firmly together. This combustion-chamber is made a few inches shorter than the outer cylinder, and is situated near to thelower side thereof, thus leaving a space all around said combustion-chambcr, thereby providing a complete water-jacket, entirely surrounding it. In the lower forward part of said combustion-chamber is provided a furnacegrating, D, the rear ends of the bars of which are supported by a bridge-wall, D.

E F are door-openings fixed in the two cylinders and leading into the lire-place for feeding fuel to the furnace. Beneath the said openings E F is another broad door-opening, G, leading into the ash-pit. At the rear end of the boiler is also a door-opening, H, for the convenience of getting into the rear part of the combustion chamber for cleaning or re pairs. Vit-hin the combustion -chamber is arranged a series of water-dues, I, connected with the water-space at each end of the boiler.

Partially surrounding the combustion-chamber B is a series of 4smoke-fines, J, connected with the inner vertical wall of the sub-chamber C and leading outward through the front wall of the outer cylinder, A, where the boiler is to be provided with a smoke-hood connected with a smokestack or chimney.

In the front and rear end walls of the outer cylinder, A, are provided holes directly opposite the ends of the fines I, which are provided with serew-plug stoppers K. The` object and purpose of these holes is to provide a means for removing, replacing, or cleaning these fines.

In the rear end of cylinder A, connecting it with the rear wall of the sub-chamber C, the stay-bolts c c are made tubular and are closed at the outer ends with plugs, similar to the plugs K, but smaller. These tubular stay-bolts c c are located directly opposite the inner ends of the smoke-ilues .I and are provided as a means for blowing out and cleaning out the said smoke-dues. The method of doing this is as follows: By withdrawing the plug from the tubular bolt and insertinga pipe therein, reaching through and entering the end of the sn1oke-iue, andinjecting steam through said pipe into the flue, the soot and dirt may be cifeetually discharged into the hood, thence into the smoke-stack or chimney. The water fiues are arranged in arch form over the lires of the furnace, and are thus exposed to the full heat of the furnace, the products of combustion passing up between said ilues and into the sub-chamber, thence through the smoke iiues J into the stack or chimney in the direction indicated by the ar rows. The boiler is su rmounted with a steamdrum L.

Having described my invention, I olaim- 1. In a steam-boiler, the combination of an outer cylinder, A, an inner cylindrical combustioirchambeigB, and annexed enlarged subchamber C, said cylinder B provided with fire-grating D and supporting bridge-wall D', the combustiolrchambers B C having the series of water-fines I arranged within, and the IOO said chamber B surrounded with a series of located opposite to the ends of the fines J, as smoke-fines, J, leading from the sub-chamber andfor the purpose specified. forward and through the front end Wall of the casing A, substantially as described.

2. The combination, with the rear head of Vitnesses: the boiler-casing A and the rear Wall of the AW. M. HAYDEN, sub-chamber C, of the tubular staybolts c c, GEO. W. TIBBITTS.

FR ANGIS O. BURROWS.