USRE7717E - Improvement in spark-arresters - Google Patents

Description

UNITED STATES PATENT OFFICE.

JAMES N. WEAVER, OF. WAVERLY, NEW YORK.

IMPROVEMENT IN SPARK-ARRESTE RS.

Specification forming part of Lette rs atent No. 183,436, dated October 17, 1876; reissue No. 7,7 17, dated 4 May" J 7; application filed January 27, 1877.

To all-whom it may concern: a i

Be it known that I, JAMES N. WEAVER, of the village of Waverly, in the county of Tioga and State of New York, have invented a new and valuable Improvement in Spark-Arresters for Hard and Soft Coal B'urning Locomotives; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexers'rirawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a rear view of my spark-arrester applied to a locomotive, and Fig. 2 is a central vertical sectional view of the same. Figs. 3, 4, and 5 are detail views thereof.

This invention relates to spark-arresters for locomotive steam-engines.

The nature of said invention consists in the combination of spark-receiving chambers, with pipes leading from the smoke-box to said oh ambers; also, in the combination of said sparkreceiving chambers with pipes the smoke-box to said chambers; also, in the combinati -11 of said spark-receiving chambers or spark-receivers, with pipes connecting them to the smoke-stack, for the purpose of allowing the escape of steam; and, finally, in various auxiliary devices and the combination of the parts and elements hereinafter fully set forth.

In the annexed drawings, A designates the truck-frame of a locomotive-engine, and B B designate the Wheels, and G G the axle, of said truck.

D D are ordinary operating-cylinders, suspended by saddle E, which saddle supports a cylindrical smokebox, F, that is secured in front of a boiler. (Not shown.) G represents an exhaust-nozzle, communicating with said cylinders D D and opening into a wire-netting, H, which is shaped like an inverted cone, and attached by its larger extremity to the inside of the upper part of said smoke-box. haust-nozzle extends upward from the bottom of said smoke-box into the lower and smaller end of said wire netting or cone. To the sides of said exhaust-nozzle G, fronting forward and backward relatively to the motion of the train, are fixed exit-tubes g g, two of said tubes beleading from Said exing on one side thereof, and two on the other side. Each pair of said tubes discharges steam directly into the flaring or bell-shaped mouth h of a spark-conducting tube, I, which communicates at its lower end with a spark-receiver, J. Said receiver J is constructed (airtight) entirely of metal, and hung firmly to saddle E.- ers, closely resembling each other in construction, arrangement, and operation. them is attached in front of smoke-box F, and the other in the rear of said smoke-box. The two spark-conducting tubes I I are also substantially counterparts of one another. The dead sparks and cinders that settle by gravity in the bottom of smoke-box F are blown by means of the exhaust steam (passing through nozzle G and side exit tubes 9 g) into sparkcondnctiug tubes I I, whence they pass into receivers J J.

A certain amount of exhaust steam passes with said cinders into said receivers, and this steamis removed by meansof pipes K K, which extend from such receivers to the smoke-stack L. Said smoke-stack extends down, through the top of said smoke-box F, into the upper end of said conical wire-nettin g B, so that said netting prevents unextinguished sparks from passing up through said smoke-stack. The bottoms of said receivers J J are closed by butterfly -valves M M, the pivotal rods of which are provided with crank-arms m m. Said crank-arms are connected together by a longitudinal rod or bar, N, which is secured to, and operated by, the lower end of an arm, 0, depending from a sleeve, 1?, that surrounds a shaft, Q. Said sleeve is provided with an upright lever or handle, B. When said lever or handle It upon said shaft longitudinal motion is given to rod or bar N, and valves M M are thereby operated, opening or closing, according to the direction of the oscillation of said lever or handle It.

When said valves open the cinders in said receivers fall to the ground. When said valves are closed the sparks and cinders are retained, giving time for the former to be all extinguished before making their exit. Said shalt Q is pivoted in or upon lugs, arms, or plates S S, extending to the rear from saddle E, and

There are two of such spark-receiv- One of I is rocked backward or forward,

said shaft is provided it can be rotated for tl the cylinder-valves. downward from abou the said butterfly-val discharge of the cinders stances contained in sai valves, by means other described co from the cab of th U designates a smoke-box F. V which afl'ords an sion for one of th to stationary engines, ones. They may also ways. For instance,

only one. Also, sparkreceiver, the tub sparks bein number.

A slide-valve, valve,

attached to a rocking ing sleeve, as shown.

structed in sections, as may consist of a sin steam passing up the smoke-stack L. Each vided at the lower end k, in which is placed a w K, (shown in Fig. 3,)

cinders and other injurious particles from beaid pipe with the steam ing drawn up through s of lever-handle R and the nnections, may be operated e engine. door, which gives access to designates a front platform, additional means of suspene spark-receivers J. The above-described d g correspondingly diminished in or any other suitable form of may be substituted for each of the butterfly-vaIves M M. Levergle length. The steam is drawn up through them by the action of the with arms T T, whereby 1e purpose of operating Said receivers J J taper t the .middle of each of ves M M, to insure the and the other sub- (1 receivers. Said evices may be applied as well as to locomotive be modified in various the number of steam-exit tubes 9 g may be reduced to two, or even to there may be only a single es conveying steam and handle B may be shaft, instead of a rock- Pipes K K may be coushown, or each of them exhaust-nozzle G and of said pipes is prowith a flaring mouth, ire screen or strainer,

which screen prevents which it commusaid pipes K K e-stack through bed.

from the spark-receiver with nicates. The upper ends of communicate with the smok the wire-netting above descri What I claim as new, and desire to secure by Letters Patent, is

l. A spark-receiver, into which sparks are forced by a jet of steam, located beneath the smoke-box, and provided with suitable openings for the escape of steam, substantially as and for the purpose set forth.

2. The combination of an exhaust-nozzle, a steamjet, a spark-receiver, provided with openings for the escape of steam, and apipe between said jet and receiver, substantially as described.

3. Spark-receiver J, in combination with steam-conducting pipe K, smoke-stack L, and exhaust-nozzle G, whereby the steam is drawn from said spark-receiver, substantially as set forth.

4. The combinatio n of receivers J J with valves M, crank-arm s m m, connecting rod or bar N, arm 0, rocking sleeve or shaft Q, and operating-lever R, substantially as set forth. 5. The combination, with receivers J, of steam-conducting pipe K, having lower bellshaped mouth It and wire-screen K, and with exhaust-nozzle G and smoke-stack L, substantially as and for the purpose set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES N. WEAVER. Attest:

CHARLES C. BRooKs,

J. NEWTON DEXTER.

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