US410227A - wilson - Google Patents

Description

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2 Sheets-'-Sheet 2. J; E. WILSON. STEAM BOILER.

Patented Sept. 3, 1889.

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UNITED STAT S PATENT OFFICE.

JAMES E. WILSON, OF EASTON, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO FRANK WILSON, OF SAME PLACE.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 410,227, dated September 3, 1889.

Application filed July 3, 1889. Serial No. 316,425. (No model.)

To all whom it may concern.-

Be it known that I, JAMES E. WlLsoN, a citizen of the United States, and a resident of the city of Easton, in the county of Northampton, in the State of Pennsylvania, have invented a new and useful Steam-Boiler, of which the following is a description.

The object of the invention is to provide a boiler which shall utilize to the greatest possible extent the heat produced through combustion of fuel; and to this end the boiler is so constructed as to expose to the impact of the heat-currents a surface the extent of which, in proportion to the space inclosed within the boiler, is very great, and which is of such proportions that no point in the interior of the boiler is remote from the volume of escaping products of .combustion.

The construction thus generally indicated involves certain novel combinations, as will appear from the following detailed description.

In the accompanying drawings, Figure 1 represents a perspective elevation, portions being broken out of the casing to exhibit the interior construction. Fig. 2 is a vertical longitudinal central section from front to rear. Fig. 3 is a vertical transverse central section, the line being indicated at to win Fig. 2. Fig. 4 is a horizontal section looking in the direction of the arrow in the line 00min Figs. 2 and 3. Fig. 5 is a perspective elevation of the boiler detached from its casing. Fig. 6 is a view in perspective of the metallic coveringplate.

A designates the boiler or steam-generator as a whole, A being the wall or casing composed of brick masonry, in which the boiler or generator proper B is detachably received. The casing A is mounted upon a base a of soapstone, fire-brick, or other fire-proof material, and it is provided in its front wall with a fuel-supply opening a and with an ash-pit opening a.

In a plane between the openings a. and a, and extending across the interior of the casing, is mounted a grate or a series of gratebars a of any suitable construction. In its interior surface the casing A is provided with a front vertical recessed way a and a rear vertical recessed way a, which extend from the top of the wall downwardly and respectively terminate at bottom in a shoulder a and a At its upper extremity the casing is closed by a covering-plate a which, by

preference, is provided along its edges with a continuous downwardly-extending flange aflwithin which the masonry of the casing is received. This covering-plate is provided with an opening at, having a collar a for exit of products of combustion and to receive a conducting-pipe for such products, and it has also an opening a for a steamdischarge pipe.

The boiler or generator B consists in its lower and main portion of anarrowrectangw lar central vertically-placed chamber 12, a succession of horizontal groups or series of inwardlyopen and outwardly-closed watertubes 1), extending outward from the cham- 6 and a corresponding horizontal water-return tube b.

The horizontal water-tubes b b have a staggered or alternating arrangement from bottom to top, as shown, so as to cause the products of combustion in their upward pas- 8o sage to take a zigzag course, and they are of such longitudinal extent that the outer end of each tube is brought into contact or very nearly in contact with the wall of the casing.

The Water-receiving central chamber 1) ex- 8 5 tends vertically upward from. a point in a plane with the upper extremity of the fuelsupply opening a and the, fuel-chamber O to a point in the upper portion of the combustion-chamber O, and it extends from the front 0 to the rear wall of such combustion-chamber, dividing the main portion thereof into two equal parts. In its top plate I) the chamber 1) receives vertical tubes 6 b which open into and serve as supports for a horizontallyplaced cylindrical steam-drum or superheating-chamber B, which at its top is provided with a vertical steam-discharge pipe b which extends through the opening a, provided therefor in the covering-plate a of the cas- Ioo ing A.

At a distance above its lower extremity, corresponding with the distance of the shoulders or bearings a and a of the casing above the upper extremity of the fuel-opening a, the central chamber 1) is provided with a front supporting or engaging bracket 13 and with a rear supporting bracket or lug B which are adapted to the grooves or ways a and a, and to the bearings or shoulders a and a It will be noted that through the provision of the ways a a and the lugs B B it is made practicable to insert or to remove and to support within the combustion-chamber O a boiler which practically extends over the entire horizontal area of such chamber.

Undersome circumstances it may be desirable to employ instead of the metallic covering-plate a a covering of brick or of steatite, having suitable openings for smoke and steam exit 5 but in such cases the covering will still be made detachable, either as an integer or in jointed sections, so that-the boiler or generator may be readily removed and repaired, or a new one inserted whenever it is found desirable.

The apparatus thus constructed may be employed either for power, for domestic steamheating, or for heating by a circulation of hot water.

Through the division of the combustionchamber by the central chamber 1) it will be practicable to use one-half only of the heating capacity of the structure, the draft being by an an gle-plate or other simple means readilycut olf from either half of the combustionchamber.

The drawings represent eleven series of water-tubes, at either side of the central chamber, each tube being threaded and screwed into a tapped opening in the chamber. I do not, however, restrict myself to this number, although I have found a large number neces sary to thorough utilization of the heat.

In the chamber 1) are suitable openings 0 0 for the removal of accumulations of sediment, and these are provided with closing appliances of any suitable kind.

Having described in invention, 1 claim- 1. The combination, with the casing A, of the detachable covering-plate a having exitopening for the products of combustion, and the pendent vertically-detachable boiler B, having central vertical imperforate interiorlyunobstructed dividing-chamber 1), extending from front to rear of the combustion-chamber, and provided with the series of right and left horizontal water-tubes b and b extending to the walls of such combustionchamber, whereby the interior space is divided centrally into two vertical right and left upwardly discharging chambers.

2. The combination, with the casing A, and with its detachable covering-plate, provided with smoke-exit opening, of the pendent upwardly-detachable boiler B, having central rectangular elosely-fittin g chamber 19, extending from the front to rear of the interior space and dividing the same into two separate right and left chambers, which discharge upwardly, and provided with horizontal water-tubes b and b extending from the central chamber across the separated parts of the combustion-space, the supply-pipe 6 extending through the casing at one side thereof, and the return-pipe b extending through the casing at the opposite side thereof.

3. The combination, with the casin g A, having vertical ways in the front and rear walls thereof, extending from the top of the wall downwardlyand terminating in seats a and d of the boiler B, having projecting lugs B and B adapted to the vertical ways and to the seats a and a 4. The pendent upwardly-detachable steamgenerator B, having central imperforate dividing-chamber I), right and left outwardlyclosed horizontal water-tubes b and b and superposed superheating-chamber or steamdrum B, in'combination with the inclosingcasing A, the combustion-chamber of which is of like horizontal area with the boiler and its tubes, and with the detachable covering plate or cap a of such casing.

5. In a steam-boiler, the combination, with an inclosing-casing which is provided with a detachable covering-plate and with support ing bearings or seats, of a boiler which is provided with projecting lugs which engage the supporting-bearings in the casing, whereby the boiler in its entirety is rendered vertically removable and replaceable.

JAMES E. XVILSON.

WVitnesses:

J. MARsHALL YOUNG, J ACOB WILsoN.

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