US310740A - William stephensojst - Google Patents

Description

(No Model.)

W. STEPHENSON.

BOILER AND STRAW BURNING'PURNACE. No. 310,740. Patented Jan. 13,1885.

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WILLIAM STEPHENSON, OF JORDAN, ONTARIO, CANADA.

BOlLER AND STRAW= BURNIING FURNACE.

. SPECIFICATION forming part of Letters Patent No. 310,740, dated January 13, 1885.

Application filed January 6, 1883. (N0 model.) Iatented in Canada May 3, 1881, No. 12,729. i

To aZZ whom it may concern.-

Be it known that I, WILLIAM STEPHENSON, of Jordan, in the county of Lincoln, in the Province of Ontario, Dominion of Canada, have invented a new and useful Combined Boiler and Straw-Burning Furnace; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same.

The first part of my invention relates to the improved construction of a boiler and its furnace in such a manner that straw, grass, or kindred substances can be utilized and used as fuel in place of wood and coal when the latter cannot be had conveniently and cheaply.

The second part of my invention relates to the construction of a jacket surrounding the boiler in such a manner that there will be a space of about three-quarters of an inch between them,and the exh aust-steam be enabled to be extended around the outer surface of the boiler for keeping up the heat with less fuel than can be accomplished with ordinary steamboilers.

The third part of my invention relates to the construction of a boiler in such a manner that sparks, &c.,from the fire under the boiler will be arrested and extinguished before reaching the smoke-stack.

The fourth part of my invention relates to the construction of a boiler with two or a ate a blast to cause the fire to burn more intensely than ordinary, and the other draws and forces the smoke through water to extinguish sparks arising from the combustion of the fuel. The fans are also so constructed as to be noiseless, as will be more fully shown hereinafter.

By reference to the drawings it will be seen that Figure 1 is a side elevation of an apparatus embodying my invention. Fig. 2 isa vertical section of the same; Fig. 3, a plan view of the same; Fig. 4, a cross-section of the horizontal part of the boiler, showing the division on each side between the boiler and jacket, Fig. 5, a top view of the sharppointed tongue in the fans. Fig. 6 is a vertical transverse section through center of fans G and G on line 00 w.

I construct the boiler and straw-burning apparatus somewhat similar to the portable farmter,under the bottom of the fire-box, where the 6 5 sparks are extinguished.

A is the boiler; B,the firebox; C,the steamspace D, the hotwater space outside of firebox. I construct a jacket, K, to surround the boiler, except the front portion of it where the return-pipe is located, made of sheet-iron or kindred substance, and there will be a space, M, between the jacket and boiler, of about three-quarters of an inch. This space, when the machine is in operatiomwill be filled with exhaust-steam, except the lower part of boiler, which forms the ash-pan, and is filled with water before escaping at the pipe J with the smoke. By this means the boiler will not cool so rapidly, and steam will be kept up with much less fuel than would otherwise be required.

0 is a pan of water under the grate-bars, having its inlet at O, and is for extinguishing the sparks from the fuel.

E E are openings for smoke at the end of the horizontal part of the boiler leading into the flue F under said portion of the boiler, and connecting with the fan G. Said fan is for the purpose of drawing the smoke to itself and forcing it through the water in O to the exitflue J, where the exhaust unites with the smoke and passes off together.

H is a flue or pipe leading from the return flue F to the fan G.

H is a tube leading from the fan G to the annular space I, communicating from the exitflue J.

G is a second fan, placed alongside of the other one, G, and is for the purpose of supplying fresh air to the fire through the tube I,which is bent at right angles under the gratebars N and provided with a number of holes, a, to admit a blast of air between every other grate-bar. By this means theashes and em- 'bers drop through the spaces between the bars where there is no blast, and fall into the water 0 underneath.

Nis the grate, with about six or eight bars, and which may be cast in one piece.

9 and h are slanting partitions,placed in the exh aust-steam space between j acket andboiler, to divide the steam-space from smoke-space; and m, a horizontal partition connectingthe two said partitions g and h,to divide the fines H and H at that point. a n are partitions on each side of the horizontal part of the boiler, respectively, between the jacket and the outer surface of the boiler, to divide the smokespace from the exhaust-steam space.

G, Fig. 5, is a sharp-pointed tongue, se-

cured at the lower part of the fans for the purpose of causing said fans to work without noise.

6 are strips for the purpose of affixing a seed-drill, D, to the front of the apparatus.

My apparatus is also adapted to be connected to other agricultural implements-such as land-rollers, plows, and harrows-by suitable connections, so that the seed-drilling, landrolling, plowing, and harrowing can all be done at the same time.

The expense of running my machine is very small, on account of the trifling cost of fuel, and the construction of boiler and jacket, which economize the fuel without waste.

The peculiar make of the boiler, with the fan-blast,enables fuel of an inferior quality to be used with success and economy in running the machine, as well as the ability to raise steam quickly,and giving the operator power to control the fire fast or slow, as he may require it.

The construction of the jacket outside of the boiler and steam-space, between the jacket and boiler, for exhaust-steam prevent cold air from coming in direct contact with the boiler;

consequently less fuel is required to keep up steam.

What I claim as my invention is- 1. The combination of the fire-box, hot-water and steam chamber surroundingthe same, a water-tank below said firebox and chamber, and the fans G and G, all substantially as and for the purposes set forth.

2. The combination of the fire'box, ahotwater and steam chamber surrounding the same, an exhauststeam space surrounding said chamber and inclosed by a steam-tight jacket, and the partitions g h m n n, all substantially as and for the purposes set forth.

3. The combination of the fire-box having horizontal smoke-passages connected with the same, the returnflue F, smoke-fan G, steamchambers D and M, water-tank O, and exitpipe J, all substantially as and for the purposes set forth.

lVM. STEPHENSON. In presence of GEo. B. ELLIOTT, PETER BEGG.

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