US231320A - Abel p - Google Patents

Description

(Nomode'l') A.P. HOLGOMB.

' Steam Generator.

)i Patented Aug. 17, 1880.

N-PETERS, PHOTOALITHOGR-APHER. wASx-lxNGTuN. D. C.

. UNITED STATES PATENT OFFICE.

ABEL P. HOLCOMB, OF SILVER GREEK, NEW YORK, ASSIGNOR TO HUNTLEY, HOLOOMB 85 HEINE, OF SAME PLAGE.

STEAM-GENERATO R.

SPECIFICATION forming part of Letters Patent No. 231,320, dated August 17, 1880.

Application led April 14, 1880.

To all whom it may concern:

Be it known that I, ABEL P. HOLCOMB, of Silver Creek, in the county of Chautauqua and State of New York, have invented new and useful Improvements in Steam-Genera tors, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to a steam-generator ro which is more especially designed for producing steam under a low pressure for warming1 buildings and for similar purposes.

The object of my invention is to produce a simple, compact, and eficient-steam-generator in which the ire-passages are not liable to become filled with ashes.

My invention consists, principally, of a steamgenerator composed ot' upright water-chambers arranged radially around a common axis zo with intervening upright lire-spaces or iiues, a water-space surrounding the re-pot and communicatin g with the lower ends of the upright water-chambers, and a steam-chamber arranged above the upright water-chambers 2 5 and communicating with the upper ends thereof 5 also, of various details of construction,` as will be fully hereinafter set forth.

In the accompanying drawings, Figure 1 is a sectional elevation of my improved steam- 3o generator. Fig. 2 is a horizontal section in line m Fig. 1. Fig. 3 is a fragmentary horizontal section in line y y, Fig. 1. Fig. 4 is a horizontal section of one of the upright waterchambers on an enlarged scale. Fig. 5 is a 3 5 fragmentary side elevation of the same on the same scale.

Like letters of reference refer to like parts in the several gures.

A represents the lire-pot of the steamgen- 4o erator, and B the fuel-magazine, arranged centrally above the same.

C is the ash-pit; D, the smoke-flue; and E, the feed-chute, through which the fuel is in troduced into the magazine B.

F represents an annular water-chamber surrounding the tire-pot A, and preferably cast in one piece therewith. rlhe chamber F is closed at the bottom and sides, and provided at its top with al number of circular open- 5o ingw (N o model.)

G represents the upright water-chambers, arranged radially around the fuel-magazine B, with their inner sides touching each other, and with their outer sides separated, so as to form intervening upright spaces or dues H, through which the iame and hot gases pass from the lire-pot t0 the smoke-exit. The chambers G are constructed in the form of hollow flat leaves orboxes, somewhat contracted from their outer to their inner sides, and provided 6o at their inner sides with laterally-projecting ribs or iianges g, which flt closely against each other when the leaves G are put together, and the inner surfaces of which are curved in the arc of a circle, so that the contiguous inner sides of all the chambers G form a cylindrical fuel-magazine.

If desired, the magazine may be provided with an interior lining, h, of sheet-iron or other suitable material. o

'i represents an opening formed in the bottom of each chamber G, near its outer end, and surrounded by a downwardly-projecting boss or collar, i. These bosses z" rest upon the annular top ofthe water-chamber F, which 7 5 surrounds the lire-pot, and the openin gs f are so arranged in the top of theire-pot that they communicate with the openings z' in the bottom of the chambers G.

lc are similar openings formed in the upper 8o ends ot the chambers G, in a vertical line with the openings i in the bottom of each chamber, and surrounded by a boss or collar, k.

L represents an annular steam chamber or space arranged above the water-chambers G, and provided in its bottom near its periphery with openings l, communicating with the openings k in the tops of the water-chambers G.

m are vertical stay-bolts, which pass through the water-chambers F and G and the steam- 9o chamber L and the openings fi kl thereof and secure the parts together.

N is a smoke-exit tube, arranged centrally in the steam-chamber L, and connecting at its upper end with the smoke-Hue D, which leads to the chimney.

O is a cover or horizontal plate, which closes the upper end of the magazine B, with the eX- ception of the feed-chute E, which penetrates this cover. 10o

The steam-chamber L s arranged at such a distance above the upper ends of the vertical water-ehambersG that a horizontal passage is formed between the under side ot' the steamchamber L and the upper sides of the waterehambers G and the cover of the magazine, through which the hot gases can pass from the lues H to the exit-pipe N.

p are horizontal stay-bolts, arranged at proper distances apart in the hollow chambers G for connecting the tiat sides thereof and pre- Venting the expansion of the same by the internal steam-pressure to which they are subjected.

The chambers G are preferably constructed of cast-iron, and the bolts p are preferably cast in one piece with the chambers; but, if desired, they may be screwed and riveted to the side Walls of the chambers G in the same inanner in which such stay-bolts are Vapplied to ordinary steam-boilers.

Q represents the hollow base which incluses the ash-pit G. The base Q is provided with an annular horizontal top iiange, r, upon the inner edge of which the boiler proper is supported, as clearly shown in Fig. l.

S represents the inclosing wall or jacket of the boiler, constructed of brick or other suitable non-conductor of heat, and supported upon the top flange, r, ot' the base Q. The jacket or brick-work S rests against the outer sides of the water-chambers G, and forms, in connection therewith, the upright titles H.

rEhe boiler is supplied with the water-feed pipes, steam-pipes, safcty-valves, and other necessar i appurtenances in an) ordinary and well-known manner.

The iiame and hot gases generated by the burning fuel in the tire-pot A pass from the fire-pot A upward into and through the vertical lucs or tire-passages II. between the vertical water-chambers G, and thence into the horizontal space below the steam -cl1amber L, thence inwardly over the cover of the magazine B to the central exit-pipe, N, whence they escape into the smoke-liuc I). ln their passage from the tire-pot to the smoke-tine the gases are eiectually deprived of the heat contained in them by the thin bodies of water contained in the vertical chambers G, which expose a very large surface to the action ot' the hot gases.

The upright tiues II, formed between the chambers G by the smooth vertical sides oft these chambers, insure a good draft and prevent thc lodging of ashes on the same, thus presenting at all times a free unobstructed surface of lnetal for the absorption of heat from the hot gases passing through these iiues.

I am aware that it is not new, broadly, to form vertical iues between the vertical waterspaces, and that it is not new, broadly, to arrange vertical water-chambers in communication with the water-foot and steanrchamber, and I do not lay claim thereto; but

'hat I claim as my invention is- 1. In a steam-generator, the separate vertical and elongated water-spaces G, arranged radially around the fuel-magazine B, with their inner sides in contact, and forming a continuous surface around said magazine, and their outer sides separated, in combination with an inclosing jacket or casing, S, whereby vertical iues are formed between the vertical waterspaces, and a thin compartment of water with an extended surface is presented to the action of the tire, substantially as and for the purpose set forth. Y

2. The lire-pot A, provided with annular water-chamber F, in combination with the intermediate vertical elongated Water-spaces, G, arranged radially around the magazine B, steam-chamber L, land surroundingjacket S, substantially as and for the purpose set forth.

3. The vertical water chambers G, constructed at their innersides with laterally-projecting iianges g, by means Ot' which the chambers come in contact with each other and are held in their proper position, substantially as set forth. Y

4. In a steam-generator, the combination ot' 9o IOO

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