US714868A - Water-tube boiler. - Google Patents

Description

- No. 7I4,868. 'Paient ad 1m. 2, 1902.

J. C. COOKE. WATER TUBE BOILER.

(Application filed 6c;- 4, 1901.)

(No Model.) 3 Shee1s-8heat l.

see.- Inventor:

No. 7l4,868. Patented Dec. 2. I902.

J. c. CO0KE.-

WATER TUBE BOILER.

{Application filed Oct. 4, 1901.)

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(No Model.)

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UNTTED STATES PORATION OF NEW JERSEY.

PATENT OFFICE.

PENNSYLVANIA, ASSIGNOR TO NEW OF CAMDEN, NEW JERSEY, A COR- WATER-TUBE BOILER.

.JPECIFICATION forming part of Letters Patent N 0. 714,868, dated December 2, 1902. Application filed October 4, 1901. Serial Ne. '77,5l4. (No model.)

To all whom, it may concern;

Be it known that I, JOHN C. OOOKE, a citizen of the United States of America, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Water-Tube Boilers, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to water-tube boilers, and has for its object to generally improve the construction of such boilers with a view of increasing their efficiency and structural strength.

The nature of my improvements will be best understood as described in connection with the drawings in which they are illustrated, and in which- Figure 1 is a longitudinal section through my improved boiler on the line 1 1 of Fig. 2. Fig. 2 is a rear View of the boiler with some of the back plates of the casing removed to show the rear headers and connections. Fig. 3 is a view of the top of one of the rear headers, taken as on the line 3 3 of Fig. 2. Fig. at is a cross-sectional View through the bottom of one of the side headers, taken as on the line 4 l of Fig. 2. Fig. 5 is a front view of the boiler with the transverse dru m shown partly in section and one of the front doors removed, and Fig. 6 is a side elevation taken as on the line 6 6 of Fig. 2.

The boiler is made up of a series of intermediate front and rear headers, (indicated, respectively, atA and 13,) these headers being inclined upwardly and rearwardly and connected by a series of water-tubes, (indicated at (3,) said Water-tubes being inclined down- Wardly and rearwardly. Across the upper end of the boiler I place a transverse water and steam drum, (indicated at D,) the front headers A connecting through the bottom of this drum, as indicated at a a. The drum D is also connected with the tops of the rear headers by means of the circulating-pipes, (indicated at E.) As shown, the drum D has a perforated baffle D, situated immediately above the inlet Z. Below the ends of the rear headers Bis situated a mud-drum, (indicated at F,) and with which the lower ends of the rear headers connect, as indicated at b b, &c.

G G are the front side headers, connecting with the drum D through the nozzle 9 and having their upper portions inclined with andsubstantially abutted against the intermediate header O, While their lower ends G are prolonged below the header 0 and made substantially vertical.

I-I indicates the rear side headers, which, like the headers G, conform in angle to the rear headers B, situated between them, but are prolonged below said intermediate headers, preferably in a vertical direction, as indicated at H H. These rear side headers H are secured to and connected with the muddrum F by nozzle h, and they are connected together at top by a transverse tube connecting their upper ends, as indicated at I. The front and rear side headers are connected by side-wall tubes J J,&c., running at substantially the same angle as the tubes 0, and also by a series of tubes (indicated at J J, &TC-) which diverge from the rear header downwardly to their connection with the front header, as best shown in Figs. 1 and 6. The upper ends of the rear headers H are connected with the drum D by water-tubes, (indicated at K K.)

L indicates a bridge-wall, between which and the front wall M of the furnace are situated the grate-bars N and the furnace-chamber above said grate-bars, said furnace-chamber beingsituated between the diverging sidewall tubes J, connecting the side headers.

M indicates the furnace-door.

O is a deflector extending from the top of the bridge-wall L upwardly and forwardly, so as to direct the products of combustion from the furnace against the bottom of the water and steam drum D. as shown.

P is a deflecting Wall or cover supported, as shown, on the'tubes E and having a depending deflector-plate P, which forces the products of combustion after they have passed over the deflector O to pass downward over the intermediate part of the tube 0 and then upward over their rear portions into the takeofi flue, (indicated at Q.)

The circulation of water in the boiler is from i their lower ends extending substantially verthe drum D downwardly and rearwardly through the water-pipes K and E into the upper parts of the rear side headers II and of the intermediate headers B, thence downwardly through said headers and upwardly and forwardly through the conduits O, J, and J into the front headers G and A, and thence through the nozzle 9 and a into the drum D. Sedimentary matter is caught in the muddrum F, which also serves as a reservoir, supplying water, if necessary, through the nozzle h to the lower ends of the rear side headers, thus insuring an ample supply of water to the bottom tubes J, forming the side walls of the furnace.

The rear intermediate headers B are firmly locked in position between the side headers H, which are rigidly held together by means of their connections with the mud-drum and their connections through the tube I.

The deflecting system shown exposes the bottom of the drum D to exceedingly high temperature, which is highly desirable, and at the same time provides for the best distribution of the products of combustion over the tubes 0.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In a water-tube boiler having a transversely-set steam and water drum above the front end thereof and a furnace-chamber set below said front end and divided from the rear end by a bridge-wall, a baffle-plate extending upwardly and forwardly from the top of the bridge-wall to direct the products of combustion against the bottom of the transverse drum and a second downwardly-extending baffle-plate set between the first baffle and the rear end of the boiler to direct the gases downward over the intermediate part of the tubes and upward over their rear ends.

2. In a water-tube boiler having inclined central headers connected by inclined tubes, side headers inclined through their upper ends with the central headers and having their lower ends extending substantially vertically in combination with side-wall tubes connecting the front and rear side headers.

3. In a water-tube boiler having inclined central headers connected by inclined tubes, side headers, inclined through their upper ends with the central headers and having tically, in combination with side-wall tubes connecting the front and rear side headers, the lower side-wall tubes diverging from each other upwardly.

4. In a water-tube boiler having inclined intermediate headers and inclined watertubes connecting said headers, a transverse water and steam drum situated above the front or higher end of the boiler and connecting with the tops of the front headers, circulating-tubes extending from the drum to the upper ends of the rear headers, and a transverse mud-drum connecting with the lower ends of the rear headers; side headers running parallel with and abutting against the intermediate headers throughout the length of said intermediate headers, the front side headers connecting, like the intermediate headers with the transverse water and steam drum, and the rear headers being connected and in communication with the ends of the mud-drum, in combination with a tube connecting and securing together the ends of the rear side headers, side-wall water-tubes connecting the rear and front side headers and circulating-tubes connecting the water and steam drum with the upper ends of the rear side headers.

5. In a water-tube boiler having inclined intermediate headers and inclined watertubes connecting said headers, a transverse water and steam drum situated above the front or higher end of the boiler and connecting with the tops of the front headers, circulating-tubes extending from the drum to the upper ends of the rear headers, and a transverse mud-drum connecting with the lower ends of the rear headers; side headers running parallel with and abutting against the intermediate headers, throughout the length of said intermediate headers, and extending below the intermediate headers in substantially vertical direction, the front side headers connecting like the intermediate headers with the transverse water and steam drum, and the rear headers being connected and in communication with the ends of the mud-drum in combination with a tube connecting and securing together the ends of the rear side headers above the rear intermediate headers, side-wall'water-tubes connecting the rear and front side headers, the lower connecting-tubes diverging from rear to front, and circulatingtubes connecting the water and steam drum with the upper ends of the rear side headers.

6. In a tubular boiler the combination with a series of intermediate headers B of side headers extending above the said intermediate headers, a water-tube connecting and securing together the upper ends of said side headers and a mud-drum to which the lower ends of said side headers connect and to which they are secured.

J. O. COOKE.

Witnesses:

CHAS. F. MYERs, D. STEWART.

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