US750088A

US750088A - Spark-arrester

Info

Publication number: US750088A
Authority: US
Publication date: 1904-01-19
Anticipated expiration: 1921-01-19

Description

No. 750,088. I PATENTED JAN. 19, 1904.

D. S. CHILD.

SPARK ARRESTER. APPLICATION TILED NOV. 3. 1902. 'no MODEL.

| 4,. V I 5 v '3 F L O anuauro'z wihmomzw m: NORRIS PETERS co'. PHOYO-LITKO. WASHINGTON c Patented January 19, 1904.

PATENT "OFFICE.

DWIGHT S. CHILD, OF HOLDEN, MISSOURI.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 750,088, dated January 19, 1904.

Application filed November 3, 1902. Serial No. 129,963. (No model.)

To wZZ whom it may concern:

Be it known that I, DWIGHT S. CHILD, a citizen of the United States, residing at Holden, in the county of Johnson and State of Missouri, have invented new and useful Improvements in Spark-Arresters, of which the following is a specification.

This invention relates to a spark-arrester; and the object of the same is to provide simple and elfective means for preventing the escape of sparks or heavy products of combustion from a smoke-stack by causing the same to fall back into a part of the stack surrounding the main smoke-flue and be carried off by means of suitable conveying devices.

The invention consists in the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the drawings, Figure 1 is a transverse Vertical section of a smoke-stack embodying the features of the invention. Fig. 2 is a similar view of a portion of a smoke-stack, taken therethrough in a different vertical plane. Fig. 3

.is a horizontal section on the line 3 3, Fig. 1.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral 1 designates a smoke-stack of ordinary form and of that shape usually applied to traction-engines. The lower terminal of the said stack is secured to the forward extremity of the boiler in the usual manner, and therein is a concentrically-arranged flue-tube 2, secured at its lower end by means of angleplates or analogous devices 3 to the interior of the stack and at its upper end attached by angle-plates or other similar devices 4 to the outlet-cylinder 5 of the stack, the said cylinbaflle 6 provides a tortuous passage through which the smoke is caused to pass, and the sparks or heated cinders will be materially cooled before arriving at the upper end of the said baflle. 2 and between the latter and the lower cylindrical member of the stack 1 are diametricallydisposed chutes 10, consisting of strips of metal bent into substantial U-shaped form and secured between the tube 2 and the lower portion of the stack to form an obstruction in the space between said tube and the lower part of the stack. Depending centrally from the per end of the tube the heavier particles carried thereby will fall over the edge of said tube and pass downward through the lower portion of the stack and fall upon the chutes, and thence out through'the pipe 11. By this means the smoke is caused to issue from the outlet-cylinder 5 in a condition comparatively free from heavy particles of combustion and sparks, and when the improved device is used on a traction-engine for driving threshing-machines and the like firing of adjacent buildings or hay-stacks will be prevented.

The improved spark-arrester is very simple in its construction, and to accommodate'different applications thereof changes in the proportions, dimensions, and minor details may be resorted to without departing from the principle of the invention.

Having thus fully described the invention, what is claimed as new is The combination with a stack having an out- I let-cylinder secured in the upper end thereof, of a flue disposed concentrically within the stack and of less diameter than the said outlet-cylinder, the upper end of the flue projecting into the cylinder and secured to the latter to provide an annular outlet between the cylinder and flue, a spiral baflle secured in the At the lower portion of the tube.

flue, and depressed substantially U-shaped obstructing-flanges interposed between diametrically opposite portions of the lower extremity of the flue and the body of the stack and forming closing partitions, the lower central portions of the flanges having openings therein communicating with depending tubes which are snugly held between the flue and the body of the stack to provide directing-outlets for the products of combustion falling back into TO the stack, the tubes depending from the flanges terminating above the lower end of the flue. In testimony whereof I aflix my signature in presence of tWo Witnesses.

DWIGHT S. CHILI). Witnesses:

J AS. H. ROGERS, W. A. CAMPBELL.