US672425A - Steam-boiler. - Google Patents

Description

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Patented Apr. |6, |90l. w. C. TEMPLE.

STEAM BILER.

(Application filed July 1D, '1900.

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(No Model.)

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a' "e it n WILLIAM O. TEMPLE, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE AULTMAN da TAYLOR MACHINERY COMPANY, OF MANSFIELD, OHIO.

STEANIJHBOIILERS..

SPECIFICATION forming part of Letters Patent No. 672,425, dated. April 176, 190.1.

Application tiled July 10, 1900.

T0 @ZZ whom, t may concern:

Be it known that I, WILLIAM C. TEMPLE, 0f Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Steam-Boilers, of which, the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciication, in which- Figure 1 is a vertical central section of my improved boiler. Fig. 2 is a horizontal crosssection of the same. Fig. 3 is a vertical section on the line III III of Fig. 2, and Fig. et is a horizontal section on the line IV IY ot' Fig. 1.

My invention relates to that class of vertical water-tube boilers wherein an upper and a lower drum are connected by sets of tubes with partitions between the sets to direct lthe flame and gases in upward and downward passes; and its object is to prevent accumulation of dust upon the top of the mud-drum and also to stop short-circuiting of the gases beneath the partition and around the muddrum.

Heretofore in this type of boilers the gases frequently creep between the lower end of the baffle-wall partition and the mud-drum and around the sides of the drum and pass directly to the stack without contacting with the tubes. This decreases the economy of the boiler and bakes the sediment in the muddrum. Moreover, where the muddrum is tightly inclosed in attempting to prevent this action the dust accumulates on the top of the mud-drum and piles up around the tubes, thus decreasing the heating-surface and the economy of the boiler. My invention overcomes these difficulties; and it consists in providing dust-fines around the mud-drum for the descent of l(he dust and also in placing partition-walls at the sides of the drum to prevent short-circuiting of the gases to the outlet-flue.

In the drawings, 2 represents the external shell of the boiler, and 3 the furnace. The boiler is composed of an upper drum 4L and a lower or mud drum 5, connected. by two sets of tubes 6 and '7. The mud-drum is supported upon separated brackets, as shown, and is spaced apart from its inolosing walls,

Serial No. 23,127. (No model.)

so that the dust may fall through the vertical flues formed between the supporting-brack ets, the walls of the 1n ud-dru m chamber, and the mud-drum itself into the space below it. Between the sets of tubes 6 and 7 is placed a vertical partition 8, which extends from the top of the mud-drum to a point some distance below the upper drum, and this partition is provided with downward side extensions 9 9, 6o which are joined to a lower partition 10, eX- tending across the lower head of the muddrum. This lower partition 10 is provided with an opening having a hinged door 11, which closes, so as to prevent any gases passing through the opening when it is in normal position. 12 is a stack-due leading from the base of the tubes 7 to the stack 13. The base portion of the stack is provided with a door of lthe water-supply.

When'the boiler is in operation, the flame and gases from the furnace 3 pass in among the lower ends of the tubes 6, and, rising above the partition, descend through the tubes 7 and pass out from among their lower ends to the stack. The partitions or shields surrounding the mud-drum prevent the gases from cutting across directly to the stack-line, while the collecting dust falls around the muddrum into the chamber below it, and the full heating effect of the gases is thus obtained.

The advantages of my invention result from the use of the dustpassages around the mud-drum and from the partition for the mud-drum chamber which divides it into two separate chambers, thus preventing short. circuiting of gases and baking of sediment in the drum and the collection of dust among the tubes.

Many changes may be made in the form and arrangement of the boiler without departing from my invention.

I claim- Y A 1. A vertical water-tube boiler having au upper drum and a lower drum connected by ICO sets of tubes, a partition between the sets having a downward extension constructed t-o pass on either side of the mud-drum and under the same, and a source of heat communicating with the heating-space on one side of the partition; substantially as described.

2. A water-tube boiler having a mud-drum Chamber provided with a partition surrounding the mud-drum, and a door in the parti tion; substantially as described.

3. A vertical water-tube boiler having an upper and a lower drum connected by sets of tubes, a partition between the sets, a source of heat communicating with the heating# space on one side of the partition, an outlet I5 In testimony whereof I have hereunto set zo my hand.

WILLIAM C. TEMPLE.

Witnesses:

W. W. DARLEY, G. I. HoLDsHIP.

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