US285923A - Abneb a - Google Patents

Description

(No Mndel.)

A. A, PLUMMER.

STEAM BOILER.

Patented Oct. 2, 1883,

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ABNER Au PLUMMER, OF PUTNAM, CONNECTICUT, ASSIGNOB OF ONE-HALF TO IRVING- H. ROBERTS, OF SAME PLAGE.

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SPECIFICATION forming part of Letters Patent No. 285,923, dated October 2, 1883.

Application filed July 12, 1892i. (No model.)

To all whom, t may concern:

Beit known that I, Annan A.PLUM1\rnR, a citizen ofthe United States, residing at l utnam, in the county of Vindham and State of Connecticut, have invented a new and useful Steam-Boiler, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to steam-boilers; and its object is to provide ak boiler possessing superior advantages in point of simplicity, inexpensiveness, durability, and general etl'r ciency. V

In the drawings, Figure l is a perspective view of my improved boiler. Fig. 2 is a vertical sectional 4view of the same, taken from side to side. Fig. 3 is a vertical sectional view taken from front to rear. Fig. 4 is a horizontal sectional view taken through one of the water-sections.

Referring to the drawings, A designates the boiler proper, which is preferably cylindrical in form and vertically placed on a suitable base, B, forming the ash-box, and`having the grate C of the iire-ehamber at its top.

The boiler A is formed of several sections, l), each comprising a water space or chamber, E, and a ire-space, F, these spaces being arranged to extend over the area ofthe section, while the water-chamber is formed with a vertical liuc or opening, G, through it. These sections D are entirely separate, and are preferably cast solid, so that there will be no joints to leak, and are placed one upon another, so that the iire-ilues G between the fire-spaces F will be alternately at the front and rear of the boiler. By this arrangement the iire and products of combustion will pass from the nrechamber through the first flue G, thence horizontall y through the rire-space F to the front end of the boiler, then up through the next iue G and horizontally back to the rear of the boiler again, and so on up and from front to rear until it passes off through the exit-line H. The first or lower section, D', and the next section, D2, have their fire-spaces arranged to occupy the whole central portion to form the furnace-chamber I of the boiler, while their water spaces or chambers are arranged circumferentially around the Iirespace, and the section D2 is provided with the fire-door J, as

shown. The middle sections, l), have the horizontal rire-spaces and corresponding waterchambers, the lire-spaces being connected by the alternate iiues G, formed through the 5 5 water-chambers, and the top section, D, has the steam-dome K, and has the exit-flue VH, extending from its fire chamber or space.

The usual safety-valves, gages, steam-pipes, &c., can be arranged as desired on the boiler, 6c, and the front plate, L, of the latter is preferably provided with doors M, through which the rines can be cleaned.

At one side of the boiler is arranged a vertically-disposed stand-pipe, N, that is provided at its top with a gage, O, and is connected with the water-spaces at their bottoms by auxiliary pipes P, Aby which the said standpipe will receive the water for which it is adapted. At the other side of the boiler is 7o arranged a corresponding stand-pipe, Q, that is connected with the water-spaccs near their tops by auxiliary pipes R, and is adapted for steam. rlhe dome K will lhrnish a sufficient quantity of dry steam. 75

The operation and advantages of my invention will be readily understood. The separable sections of the boiler are only connected. by the stand-pipes, so that, by unscrewing, the latter can be taken out for purposes of substi- 8o tution, &c., or more sections can be easily added, so as to make the boiler high enough to utilize the l'ull heating-power of the furnace at the bottom. By reason ofthe arrangement of the stand-pipes, the one for water being connected with \\'aterchan1bers at the bottom and the one for steam being connected at the top, a circulation is caused by which a more ei'lieient operation is secured; Besides, the arrangement is very simple and can be con- 9o veniently operated.

I claim as my inventionl. The combination of sections comprising a water space or chamber, said sections being arranged one above the other, the water standpipe connected with the water-chambers near their bottoms, and the steam stand-pipe connected with the water-chambers near their tops, whereby a circulation is secured, substantially as set forth. Ico

t 2. As an improvement in boilers, the combination of the boiler proper, consisting of the the steam-dome and exit-flue in the top secboiler, and connected to the Water-chambers by branches leading to near the tops of said chambers, substantially as and for the purpose set forth. Y 1 5 In testimony that I claim the'foregoing as my own I have hereto afXed my signature in presence of two Witnesses. f

ABNER A. PLUMMER. p

detachable sections placed one on top the other7 and each comprising a ire'space and a water chamber or space7 through which is pro vided a re ilue or opening, the furnace being formed in the bottom chambers or sections7 and tions, the Water standpipe disposed vertically and connected Witlt the Water-spaces by auX- iliary pipes ork branches leading to near the bottoms of the water-chambers, and the steam stand-pipe arranged at the opposite side of the Witnesses:

SAMUEL II. SEWARD, W. W. WAGNER.

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