US714781A - Boiler. - Google Patents

Description

UNITED STATES PATENT OFFICE.

JOHN G. (JOQKE, .OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO NEW YORK SHIPBUILDINGOOMPANY, OF CAMDEN, NEW JERSEY, A CORPO- RATION OF NEW JERSEY.

BOILER.

SPECIFICATION forming part of Letters Patent No. 714,781, dated December 2, 1902.

Applioationfiled October 4,1901. Serial No. 77,515. (No model.)

0 all whom it may concern.- Be it known that I, JOHN G. 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 particularly to improve the circulation in such boilers, and especially to insure a'most ample supply of water to the rear headers.

The nature of my improvements will be best understood as described in connection with the drawings, in which they are illustrated, and in which- I Figure l is a side sectional elevation substantially through the center of my boiler; and Fig. 2 is a view of the rear water-drum and connections, taken as on the section-line .22of Fig.1. 5

The boiler ,is made up of a series of front and rear headers, (indicated at A and B,) said headers being inclined and being connected by a series of inclined tubes, (indicated at C.) The upper ends of the front headers A connect through nozzles a, with-the water and steam drum, (indicated at D,) and having, as shown, a perforated deflector D above the nozzle. The upper ends of the rear headers B are also connected with the drum Dthrough circulating-pipes E, and the lower ends of the rear headers are connected through nozzles b with the mud-drum, (indicated at F.) By preference the intermediate front and rear headers are situatedbetween side headers, (indicated at G and 11,) said side headers running parallel to and abutting against the intermediate headers throughout the length of said intermediate heads, andpreferably having prolonged lower ends (indicated at G and H) extending downward substantially vertically. The upper ends of the front side headers G connect with the drum D through noz-, zles such as a, and the upper ends of the rear side headers H connect with the drum I through nozzles such as b, and by preference the lower ends of the rear side headers are connected with the ends of the mud-drum F. The front and rear side headers on each side of the boiler are connected by inclined watertubes, those connecting the higher portions of said headers being indicated at .I, and those connecting the lower portions being indicated at J and diverging from rear to front, as indicated, on each side of the furnace-chamber.

The drums D and I are directly connected by a circulating-pipe K.

.L is a bridge-wall, between which and the front wall M of the furnace are situated the grate bars N and the furnace-chamber situated between the diverging side wall-tubes J, M indicating the door of the furnace.

O is a deflecting-plate extending upwardly and forwardlyfrom the top of the bridgewall L .and directing the products of combus tion against the bottom of the drum D.

P'is a wall-plate separating the upper portion of the boiler from the take-off flue Q and having a downwardly-extending baffle P at tubes K andE partly into the drum I and,

partly into the tubes of the rear headers, this arrangement insuring an ample supply of water to the rear headers under all conditions.

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 inclined headers and inclined water-tubes connecting them, a water and steam drum D set transversely across the front of the boiler and con nected to the front headers, a transverse water-drum I set transversely across the rear end of the boiler and connected to the rear headers, and circulating-tubes K and E connecting the drum D with the drum I and the upper ends of the rear headers respectively.

2. In a water-tube boiler having inclined headers and inclined water-tubes connecting them, a water and steam drum D set transversely across the front of the boiler and con- IO nected to the front headers, a transverse Waheaders, circulating-tubes K and E connecting the drums D with the drum I and the upper ends of the rear headers respectively, and 15 a Water-feed pipe R leading into drum I.

J. O. COOKE.

Witnesses:

CHAS. F. MYERS, D. STEWART.

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