USRE4302E - Improvement in steam-boilers - Google Patents

Description

UNITED STATES PATRICK QUINN, OF SOUTH N PATENT OFFICE.

EVVMARKET, NEW HAMPSHIRE.

IMPROVEMENT IN STEAM-BOILERS.

To all whom it may concern:

Be it known that I, PATRICK QUINN, of South Newmarket, in the county of Rockingham and State of New Hampshire, have invented certain new and useful Improvements in Steam- BoilersL and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form ,a part of this specification.

The nature of my invention consists in the construction and arrangement of a steam-boiler, as will be hereinafter fully set forth.

In order to enable others skilled in the art to which my invention appertaius to make and use the same, I will now proceed tofdescribe its construction and operation, referring to the annexed drawings, in which- Fignre 1 isa vertical longitudinal section of my boiler. Fig. 2 is a horizontal section through line .z y, Fig. I; and Fig. 3 is a bottom view.

A represents the shell of my boiler, provided in the center-of its bottom with a downwardprojecting chamber, B, which I denominate a mud-receiver.

Itwill be understood that the boiler rests upon and is surrounded by brick-work for a suitable height, the grate being located at about the pointa a on the mud-receiver and the flames surrounding the lower end of the boiler.

At a suitable point within the boiler A is located the combustion-chamber C, to which the ames have access from the fire-cham ber through the vertical tubes b b and the horizontal tubesd d, the heat then rising through other vertical tubes, e e. The tubes b b connect the combustion-chamber through the lower part of the boiler with the fire-chamber, and the tubes d d pass through the sides of the-boiler. The tubes e e pass upward from the combustion-chamber through the upper part of the boiler.

In the center of the combustion-chamber is placed a hollow drum, D, with four arms or pipes, ff, passing through from the outside through four tubes set for that purpose, similar to the tubes d d. This hollow drum is perl 58, dated December 13, 1870; Reissue No. 4,302, dated forated all around, and air is forced into the same through the arms ff by any suitable means. This air will become heated and go through the perforations, producing perfect combustion, igniting and consuming the smoke and gases rising from the fire chamber. VThrough the side of the boiler there is also a large opening, h, into the combustion-chamber, so that a man can enter the same for repairs. 0n the side of the mud-receiver, under the grates,-is also a man-hole, k, for cleaning purposes.

through the entire boiler and combustionchamber through one of the vertical tubes e down to near the bottom of the mud-receiver B. In its downward passage from top to bottom of the boiler the feed-water in the pipe m becomes suiiciently heated to disengage all sediment and impurities, which at once settle in the mud-receiver, while the pure water rises in the boiler and is converted into steam.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A combustion-chamber .placed between he flames admitted into it both through the bottom and sides of the boiler1 substantially as herein set forth.

2. A hollow perforated drum or its equivalent, provided with hollow arms or pipes and placed within the combustion-chamber of a steam-boiler, the hollow arms or pipes communicating with the outside air, substantially as and for the purposes herein set forth.

3. The feed-Water pipe m, inclosed within one of the Vertical tubes e, so arranged as to conduct the feed-water through the boiler and combustion-chamber and deliver at the bottom of the boiler.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

PATRICK QUINN. Witnesses:

PATRICK H. QUINN, JOHN MoMANUs. A

m is the feed-water pipe, which passes.

ubes in a tubular upright boiler, and having

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