US268592A - Sectional steam-boiler - Google Patents

Description

(No Model.)

. D. L. ADAMS.

SEGTIONAL STEAM BOILER. No; 268,692. Patented D0045, 1882:

14% 92. i V k most-simple and most effectual plan for quick DANIEL L. ADAMS, OF POTTSVILLE, PENNSYLVANIA.

SECTIONAL STEAM-BOILER.

SPECIFICATION forming part Of Letters Patent .NO. 268,592, dated December 5, 1882.

i Application filed May 15, 1882. (No model.)

.To all whom it may concern Be it known that I. DANIEL L. ADAMS, a citizen of the United States, residing at Pottsville,in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Sectional Steam-Boilers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,

reference being had to the acco n1 pan yinl'g draw-.

ings, and to the letters and figures of reference marked thereon,which form apart of this specification.

Figure 1 is a vertical elevation of my improved steam heating-furnace, a. portion of one wall being removed for the purpose of showing its internal construction. Fig.2 is a horizontal section on line moot Fig. 1, and Fig.3 represents detail views of the sectional grate.

Like letters of reference are used to designate the same parts in the several views.

A denotes the furnace-walls. B is the grate, O is the fire-door, and D is a door that communicates with the ash-pit.

The boiler is constructed in sections on the generation of steam. It consists of a series of horizontal pipes, E, forming the top of the boiler or steam generator, a series of inclined pipes, F, communicating with the horizontal pipes, and a series of double inclined tubes, G,

. provided with elbows and arranged to communicate with the large pipes E and F. The

tubes Gr, connecting the pipes E and F, are arranged in pairs, as shown in Fig. 2, and may be of any desired number, according to the size. of the furnace; The pipes E F are preferably composed of cast-iron, while the tubes G are made of wrough t-iron. The pipes F are flanged at their lower ends, and are bolted to flanged elbows or branches that are formed on a muddrum, H, which is arranged transversely in the lower part of the furnace behind the bridgewall I, as shown in Figs. 1 and 2. The upper ends of the pipes F are also flanged for connection with flanged branches formed on thehorizontal pipes E, as shown in Fig. 1. The pipes E F and connecting-tubes G are arranged across the furnace in such a way as to nearly fill the space above and to the rear of the grate, the contents of the pipes and tubes being thus thoroughly exposed to the influence of the heated air. 7

-It will be seen that-the tubes Gare inclined back toward the rear pipes, F, and are elbowed into the upper pipes, E, at nearly a right angle, the inclination of the elbow being slightly forward. By this manner of arranging the pipes and tubes a positivecirculation is secured, and

all sediment is permitted to drop freely into the mud-drum through the rear pipes, F.

At the top of the furnace and communicating with the rear ends of the horizontal pipes E is a steam-drum, K, which is also made in sections, that are suitably flanged and bolted together, so that the length of the drum may be readily made to correspond with the width of the furnace and with the number of horizontal pipes employed in the construction of the steam-generator.

The sectional grate B is composed of the independent or separate bars a, which are T- shaped in cross-section. These grate-bars are provided at each end with pins or projections b I), by means of which they are pivoted in I bearings c c at the front and back.

At the frontend of each grate-bar is a downward extension having a pin, d, that connects with a sliding bar or link, 6, to which each grate-bar is thus connected. This link has a pin,f, which is connected by a yoke,g, with a rod, h, to which is attached alevenz', whereby all the bars may be shaken or rocked at once, thus grinding up the cinders and shaking out the dust and ashes. The upper surfaces of the grate-bars a are formed with interlocking lugs or projections, as shown in Fig. 2, thus forming a nearly-solid grate-surface without interfering with the draft, the lugs or projections also. serving to break or grind the cinders when the bars are moved or rocked.

It will be seen that any of these grate-bars when worn or broken can be readily removed and replaced without interfering with the others. At thefront and sides of the furnace are doors or openings k k, by which access is had for the purpose of cleaning the-pipes and tubes. The fire-door and ash-door are provided with automatic catches m to hold them open while feeding the fire or removing ashes.

The construction of the furnace is such, the wrought-iron tubes G being directly over the fire, that the heat ascends between and around cept in the manner described. The bridge-' wall I, being near the center of the lower tubes and in the rear of the fire-place and grate, assists in guiding the heat over the entire heating-surface of the steam-generating pipes. The water contained in the pipes E F and tubesGr is thus fully exposed to the heat of the furnace, and steam is rapidly generated and passed to the drum K, whence it may be conducted to any desired points. The boiler is fed from below through a pipe, M, that enters at one end of the mud-drum H, and a water-line is preferably maintained at about the center of the horizontal pipes E, the upper portions of which form a steam-space.

It will be seen that the inclined position of the pipes F and tubes G is such that while the circulation is rapidly maintained the sediment is caused to gravitateinto the mud-drum with-- outinterruption or hinderance. This construction also obviates the disagreeablerattling and clanging incident to many steam-heaters.

While all the parts of the apparatus are formed in detachable sections, there will be no difficulty in adj usting the capacity of the heater according to the requirements of the situation in which it is to be placed.

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

A steam heating apparatus consisting of a sectional boiler composed of the upper horizontal pipes,E E, rear inclined pipes, F F, and double inclined connecting-tubes G G, the mud-drum H, communicating with the lower ends of the pipes F, the feed-pipe M, entering the mud-drum, and the sectional steam-drum K,connecting with the upper horizontal boilerpipes, all constructed and combined as and for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL L. ADAMS.

\Vitnesses:

Fans. B. BANNAN, JOHN R. BANNAN.

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