US512508A

US512508A - Apparatus for producing draft in smoke-stacks or chimneys

Info

Publication number: US512508A
Authority: US
Publication date: 1894-01-09
Anticipated expiration: 1911-01-09

Description

(No Model.)

B. GAUL. APPARATUS FOR PRODUCING DRAFT IN SMOKE STAGKS AND GHIMNEYS.

Patent-ed Jan. 9, 1894.

UNITED STATES PATENT OFFICE.

RAY GAUL, OF BROOKLYN, YORK.

APPARATUS FOR PRODUCING DRAFT IN SMOKE-STACKS 0R CHIMNEYS.

SPECIFICATION forming part of Letters Patent No. 512,508, dated January 9, 1894 Application filed April 26,1893.

To all whom it may concern.-

Be it known that I, RAY GAUL, of the city of Brooklyn, in the county of Kings and State of New York, haveinvented a new and useful Improvement in Apparatus for Producing Draft in Smoke-Stacks or Chimneys, of which the following is a specification.

The nature of the improvement will be described with reference to the accompanying drawings and its novelty set forth in the claims.

Figure 1 represents a vertical section of the smoke stack to which my invention is applied, and Fig. 2 represents a vertical sectional View of a modification of a part of my apparatus.

A islhe smoke stack provided with an unobstructed top to permit the products of combustion to rise freely upwardly and off into the outside air. The upper part of the stack is providedwith anu mberof circumferentially arranged lateral openings at, a to which are fitted the lower ends of a corresponding number of pipes 19 of upwardly tapering form which are turned or projected upward within the stack near the walls thereof for the entrance of air from without into the upper part of the stack.

For the purpose of producing a rapid movement of the productsof combustion through the stack in addition to the draft introduced by the currents of air which enter from the outside of the stack and are discharged upwardly therein by the tubes b, I provide a blowing apparatus C'which may be of any suitable kind;arranged at any convenient distance from the smoke stack. The blowing apparatus is arranged to deliver its air into an annular distributing pipe D from which it is discharged into the tubes 1), through inner nozzles c, by means of upright pipes d-one for each tube or pipe b-and which may either lead upward within the stack, as shown in Fig. 1, or outside the stack, as illustrated in Serial No. 471,897. (No model.)

Fig. 2. In the example shown in Fig. 2, the opening a to the upwardly turned, taper pipe 1) instead of being in and through the wall of the stack is outside of the stack; and the inner nozzle 0 enters the said pipe at the back instead of at the bottom.

In operation, the currents of air which are fed into the top of the stack and injected into the outwardly moving current of the products of combustion serve to form a shield around the upper edge of the stack to prevent the rapid burning out of the top of the stack which is so common, particularly where the stacks are formed of iron, as in case of stacks employed on board vessels.

What I claim is 1. The combination with a stack provided with an unobstructed top and having means adapted to be used in connection therewith for producing a rapid movement of the products of combustion therethrough, ot' circumferentially arranged air tubes located near the top of the stack and extending from the outside thereof to its interior and adapted to discharge air into the current of products of combustion to form a shield for the top of the stack, substantially as set forth.

2. The combination with a stack provided with an unobstructed top and having means adapted to be used in connection therewith for producing a rapid movement of the products of combustion therethrough, of circumferentially arranged air tubes of tapered form located near the top of the stack and extending from the outside thereof to its interior and adapted to discharge air into the current of products of combustion to form a shield for the top of the stack, substantially as set forth.

RAY GAUL.

Witnesses:

FREDK. HAYNES, GEORGE BARRY.