US334657A - Chaeles gorton - Google Patents

Description

(No Model.)

0. GORTON.

STEAM GENERATOR.

N0. 384,657. Patented Jan. 19,1886.

* WYT/VESSES.

UNITE ra'rns 'ATENT met.

CHARLES GOR'ION, OF NEW YORK, N. Y-

STEAM-GENERATOR.

EPECIFICATION forming part of Letters Patent No. 334,657, dated January 19, 1886.

Application filed May 27, 1885. Serial No. 166,858. (No model.)

To all whom it may concern:

Be it known that I, OHAs. GORTON, .of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Steam-Generators, and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe accompanying drawings, and to the letters of referencemarked thereon, which form part of this specification.

My invention relates to low-pressure steamgenerators, which are applicable to house heating and farming purposes and the like, and has for its object simplicity in construction, economy in consumption of fuel, sectional in its character, and self-feeding from external fuelpockets, instead of from a central magazine, as heretofore.

The invention essentially consists of an upper and lower section, each having waterspaces communicating with each other by circulatingtubes, the upper section having a series of short outer return-tubes and the inner portion of the upper section having a nest of longer flame tubes around said nest. I arrange an annulus which divides the return-smoke chamber from the external pockets and fuel reservoir, and below the annulus, and also extending below the tube-sheet I- arrange an annular downwardlyprojecting flange, which forms between it and the outside jacket a fuel-reservoir into which there is no draft,and in which no combustion takes place. These features, together with the fuel-pockets, constitute the gist of my invention. I may, however, add that the arrange ment of the grate and fire-pot is an important adjunct to the successful operation of my improved boiler. The inner walls of the fire-pot, as will be seen, are converging from the top down to the grate, and the grate also converges to its lower surface, so that as near as possible the layer of fuel is of equal thickness throughout the furnace, thus forming a combustion-chamber between the fuel and the tubesheet for the commingling of the gases, whereby they are more perfectly consumed, and consequentlyinsures even combustion throughout said chamber. Between the fire-pot and grate I provide air-apertures, so that the proper quantity of air shall be supplied at the proper time and place, as will be more fully hereinafter described. One of the most important conditions for perfect combustion is that the supply of air be regulated by the demand. No more air should enter through any one orifice than can be absorbed by the gas with which it comes in contact, because an excess of air beyond that which is absolutely necessary for chemical union must have an injurious influence; but when all the oxygen in the air which passes through the perforations enters into chemical union heat is constantly developed, so as to overcome the cooling effect of the air.

The heat also causes the combustible gases to rush toward the jets of flame and to take the place of the rarefied products of combustion which are constantly driven away by the current, and to .control this required quantity, whereby a perfect combustion of all the gases takes place and economy of fuel is secured.

Having reference to the drawings hereto annexed, Figure 1 representsa front elevation, Fig. 2 a vertical transverse section, and Fig. 3a plan view, of a plate which may be adapted for holding the pockets; but preferably the pockets are riveted to the casing of the lower section.

It will be readily seen in Fig. 1 that the boiler is provided with the usual attachments of safety-valve, damper-regulator, gages, &c., which form no part of my invention, and will therefore not be further described.

A is the upper section, and B the lower section. a and form a joint. Small doors b b are placed near the lower edge of the upper section for access to the return-smoke chamberfor cleaning, 820., and upon the lower section I place two or more fuel-pockets, O O, which, in conjunction with the converging fire-pot D and the annulus E, form a [fuel-reservoir, which when filled will automatically supply the furnace with fuel for a long space of time. As before stated, the upper sections have waterspaces, .the lower one surrounding the fire-pot and the upper one over the fire, which is provided with flame-tubes in the usual manner. These water-spaces are provided with communicating or circulating tubes G G, through which the water freely circulates from one to the other.

The casings of the two sections meet at 7 box at its bottom, form an annulus or base Around the central nest of flame-tubes d d, I arrange a series of return-smoke tubes, e c, which comm nnicate with the upper flamechalnber, F, and the return-smoke chamber II. It will be observed that the latter of these tubes are much shorter than the central nest of tubes, and are not therefore in the way of the return-smoke chamber or the fuel-reservoir. The outer casing of the upper section forms the exit smohe-flneto the uptake. The meeting edges of the plates constituting a firewhich tits into the ash-pit, or that portion of the furnace which holds the grate. The ash pit casingis provided with doorsin the usual way, and also air-supply apertures which are governed automatically for the proper supply of air to support combustion. The grate is circular in form, but a portion of it stands downwardly, so that the fuel will fall toward the center. An air-space entirely surrounds the grate, and also a portion of the fuel to where a clear ineandeseence takes place, so that the fuel will burn equally throughout the furnace.

I desire to draw particular attention to the downwardly-projecting annular ring E, wh ch divides the fuel-reservoir from the combustion chamber. so that no combustion shall take place in said reservoir, and but little combustion along the slanting sides of the'fire-pot.

XVhen the boilers are ready for transportation, they are taken apart, and now, being in sections,are rendered easy to handle, and when ready to be erected or set up all that is necessary to do is to put the parts together, the joints being adapted to fit, and simply make the water and steam connections, when the apparatus is ready for use.

Having thus described my invention, what I watercireulating tubes, a fuel-reservoir between said sections, and a furnace having slanting inner walls, with the grate, all arranged for joint operation substantially as set forth.

4. A steam-boiler consisting of the upper section having the long and short series of tubes, an annular chamber forming the bottom of the return-smoke chan1ber,and also the top of the fuel-reservoir, in combination with the fuel-pockets and the fire-pot, substantially as set forth and described.

5. The combination, in a steam generator,

of the upper and lower sections, as described,

the flat annular chamber located beneath the short tubes and over the fuel-reservoir, the depending annulus with the fire-pot, substantiall y as set forth.

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

CHARLES G OK ON.

Vitnesses:

IVILLIAM R. SYME, DANL. B. MURPHY.

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