US253883A - Spark-arrester - Google Patents

Description

(No Model.)

G. B. NICHOLS.

SPARK ARRBSTER.

Patented Peb. 21,1882.

Il] I fmfenor UNITED STATES PATENT OFFICE.

GEORGE B. NICHOLS, OF GALVESTON, TEXAS.

SPARK-ARRESTER.

SPECIFIGA'IION- forming part of Letters Patent No. 253,883, dated February 21, 1882.

Application tiled November' 7, 1881.

To all whom it may concern:

Be it known that I, GEORGE B. NICHOLS, of Galveston, in the county of Galveston and State of Texas, have invented a new and useful Improvement in Locomotive Spark-Arresters; and I do hereby declare the following to be a full, clear, and exact description thereof, refer 'ence being had to the accompanying drawings, forminga part of this specication, in which- Figure lis a front and vertical sectional view of my improvement. Fig.2 is an enlarged view in vertical section of the extinguishing nozzles and pipes with their attachment.

Like letters of reference indicate like parts wherever they occur.

My invention relates to an improvement in spark arresters and extinguishers for locomotiveengines; and it consists in the construction and arrangement of devices by means of which the sparks are extinguished and discharged onto the road-bed.

I will now describe my invention, so that others skilled in the art may manufacture the same.

Inside of the smoke-stack of the locomotive is an inner pipe, A, into which the smoke and sparks arecarried by the steam which is discharged into the lift-pipe. Over and above the top ofthe pipe A is a cone or cylinder having the top closed by a diaphragm, so that the sparks from the pipe A shall strike against the diaphragm and will fall into the space O between the inner pipe, A, andthe smoke-stack. Opening out of the space C, at the bottom of the same, are pipes D,through which the sparks pass from the space C.

Around the lower ends of the pipes D are chambers F, the lower portions of which are in shape like the frustum of a cone, at the end of which is an opening smaller than the opening at the lower ends of thepipes D. These chambers F are fastened or secured to the pipes D by means of set-screws I, by means of which the chamber may be raised or lowered, so as to increase or diminish the space between the openings ofthe pipes D and the openings of the chambers F.

Discharging into the space between the delverypipes D and the shell of chambers F are pipes G, Iwhich conduct water or steam from the boiler to the chambers F, whence it passes (No model.)

into the annular space K, where, meeting the sparks and cinders as they pass out of the pipes D, it causes the extinguishment of the sparks.

Inside ot' the pipes D, near their lower ends, are auxiliary steam-pipes L, and discharging steam upward toward the openings of the chambers F are other auxiliary steam-pipes, M.

The operation of my device is as follows rIhe sparks, cinders, and smoke passing up the pipe A, the cinders and sparks strike against the diaphragm B and fall into the space O; thence they pass through the pipes D into the annular space K, where, meeting the steam or water jets from pipes G, L, and M, the sparks are extinguished and are carried out through the opening in the chambers F and fall onto the road-bed.

The advantages of my invention are that the sparks are completely extinguished and are discharged as cinder onto the road-bed instead ot' being thrown into the air in an ignited state.

I am aware thatdeviceshave been constructed by which sparks have been conveyed from the s1noke-stack to the fire-box and to a box placed under the locomotive, and also that pipes have been used to convey sparks, in which pipes steam or water was used, but the steam and water were introduced into the place at or near the top, and therefore this device was impracticable, owing to the caking of the dirt in the pipes, thereby clogging them up. I do not claim these devices; but,

Having thus described myinvention, what I do claim, and desire to secure by Letters Patent, is

l. In a locomotive-en gine, a pipe or pipes for conveying sparks from the smoke stack, in combination with a diaphragm or cone placed in the stack and a steam or water chamber placed around the discharge of said pipe or pipes.

A 2. In locomotiveengines, a pipe or pipes for conveying the sparks and cinders from a stack, in combination with water or steam chambers and steam or water jets, substantially as and for the purposes described.

3. The downwardlydischarging steam or water chambers F F, surrounding the delivery; pipes D D, in combination with means, sub stantially as described, for supplying steam or ICO water thereto, substantial] y as and for the pur- K, substantially as and for the purpose dcpose described. scribed.

4. The steam or Water chambers F F, having 7. The steam or Waterjets M and L, in com- I5 conical lower ends, in combination with sparkbination with spark-delivery pipes and chamdeliverypipes, substantially as and for the purber F, substantially as and for the purpose depose described. scribed.

5. The chambers F F, having the opening` at In testimony whereof l have hereunto set my their lower ends smaller in aree than the openhand. i ings ofthe delivery-pipes D D, substantially GEORGE B. NICHOLS. 1o as and for the purposes described. Witnesses:

6. The combination ofthe chambers F F and CHARLES B. LEE, the set-screws for regulating the annular space ARTHUR E. LYTLE.

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