US280605A - Steam-generator - Google Patents

Description

(No Model.)

C. GORTON.

'' STEAM GENERATOR.

No. 280,605. Patented July 3, 1883.

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UNITED STATES PATENT- OFFICE.

CHARLES GORTON, OF PHILADELPHIA, PENNSYLVANIA.

STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 280,605, dated July 3, 1883.

Application filed April 24, 1883. (No model.)

To :1 whom, it may concern Be it known that I, CHARLES GORTON, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, 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 to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

. This invention relates to the class known as sectional steam-generators, and is constructed with a view of adapting it to the magazine base-burning principle, and is an improvement upon my boiler patented to me March 21, 1882, No. 255,107.

In the boiler just' mentioned the various parts of which it is composed are made up and riveted together in the usual way, and must be shipped as a whole from the shop where it is constructed, which renders it inconvenient for transportation; and I am' aware that sectional boilers are built and the parts fastened together with bolts having gaskets or other packing between their joints, and the parts of which they are composed are made of cast-iron, which renders them heavy and cumbersome, and which boilers occupy con-' siderable time in heating them before steam can be generated, all of which are objectionable. Now, to remedy these objectionable features and to produce aboiler simple, cheap, and effective are further objects of my invention.

To these ends my invention consists in constructing boilers preferably having their tops and bottoms made of corrugated iron, which will adapt them to yield to the varying degrees of contraction and expansion due to the temperature to which they aresubjected while in use, and to further provide the said tops and bottoms (which I prefer to make annular) with grooves or channels for the reception of the side walls or shells, and to further unite these tops and bottoms by means of screwbolts provided with nuts, and, further, in combination with each other, as will hereinafter more fully appear, the outer cylinder forming an upwardly-enlarging tapering water-chamber between its shells and a downwardly-enlarging tapering combustion-chamber in its center, said chambers having the tapersjust described their entire length. The object of la pering the central chamber is that it permits an enlarged fire-space at its lower end, and, secondly, the products of combustion are made to more closely impinge upon the heating-surface of the boilerplate as they travel from the fire, and thus their heat is much more rapidly transmitted through the boiler-sheet than if the flue were parallel. The second one of the double cylinders is constructed with its walls parallel throughout their length, and is suspended within the tapering chamber of the outer cylinder at its bottom by means of circulating hollow thimbles, and at its top end by an annular drum or casing resting upon the top of the outer cylinder, which drum forms a smoke-chamber. The inner cylinder is also provided with corrugated iron ends, and is also bolted with bolts running longitudinally through the waterspace, which bolts hold the parts of the cylinder firmly together. Should it be deemed necessary, gaskets of asbestus or other packing may be applied to the end joints of the boilers; but it is thought, if the parts are properly fitted together, no leakage will occur, and therefore packing will be unnecessary. The manner in which the inner cylinder is located within the tapering chamber greatly increases the utilization of every atom of heat by compelling them to still more give up that heat to the water in the converging cylinders. The inner cylinder is provided with a magazine, so that the boiler is base-burning, and automatically feeds itself, which in this type of boiler is a great consideration. In addition to suspending the inner cylinder witha transverse sectional view taken on the line a: a, Fig. 1.

A represents the outer cylindrical shell of the water-space, and B the inner ta )ering shell narrowing in diameter from bottom to top, and which forms two chambers tapering in opposite directions, 0 being the waterchamber, and D the combustion-chamber. The cylinders A and B are united to corrugated metal heads E and F by bolts (1, which are screw-threaded at one end, and supplied with a nut by which the heads are drawn together, thus tightening the joints between the heads and the cylindrical shells. The internal bases of these shells are of different diameters, the lower one being much larger than the upper to correspond to the form of the tapering cylinder.

Upon the top of the inner cylinder, F, which projects above the outer cylinder, and resting upon the smoke-drum G, I locate a double-flanged head, II, which forms an anmr lar space for the reception of non-conducting material to prevent radiation ofheat. The inner flange, b, of the head I-I supports the top 0 ot'the magazine.

Circulation of water and steambetween the inner and outer cylindrical vessels isprovided for by means of the water-connections d c and steanreonnection f. The uptake may be pro vided with dampers in the usual manner, and also the usual appliances of steam-generators may be adapted. As I lay no claim to them, they will not be described. \Vhen an outer jacket is required. I provide division-plates I1 between it and the watencylimler and utilize it as a heating-flue; but for large generators I prefer to form a casing of brick-work, al though good results are obtained without any casing at all.

From the foregoing description it will be seen my boiler is principally made up of simply two cylinders headed and connected together, which combined produce as satisfactory results as those of complicated character, and can be built for less than one-half the cost of the ordinary kind.

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

1. The combination, in a steam-generator consisting of the cylinder forming two tapering chambers in opposite directions, of the inner cylindrical magazine, water-chamber ex tending above the outer cylinder, and the smoke-drum G, having ilange-headll, and the steam and uter circulating tubes, substantially as set forth.

3. The combination, in a sectional steamgenerator, of the outer cylinder, tapering on its inner side, with the cylindricalinner magazine, suspended by means of the water-circulating tubes and the smoke-drum, the said cylinders being adapted to be joined to their heads, which are nreferably corrugated, by means of screw-bolts and suitablepacking, in the manner and for the purpose set forth.

In testimony that I claim the loregoing my own invention 1 aliix my signature presence of two witnesses.

CHARLES GORTON.

as in \V i tnesses:

B. F. Monsmm, Enwann IE. lfLLIs.

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