US527661A

US527661A - Spark-arrester

Info

Publication number: US527661A
Authority: US
Publication date: 1894-10-16
Anticipated expiration: 1911-10-16

Description

N E. BULTMAN.

. SPARK ARRESTER.

Patented 0ct. 16, 1894.

INVENTOR %m W M M U.

UNITED STAT-ES PATENT OFFICE.

HENRY E. EULTM AN, OF OAK PARK, MINNESOTA.

SPARK-ARRES'TTER:

SPECIFICATION formingpart of Letters Patent No. 527,661; dated October 16, 1894.

Application and May 16, 1 s9i.j senate. 511,4 7. (no modelal To all whom concern): l i

Be it known that'I, HENRY E.BULTMAN,of Oak Park, in the county of Benton and State of Minnesota, have invented a inew andlmproved Spark-Arrester, of which the following is a full, clear, and'exact description. I

My invention relates to" improvements in spark arresters such as are used on the smoke stacks of locomotives to prevent them from throwing sparks; and the object of my in vention is to produce a cheap and simple spark arrester, which may be conveniently fastened to the stack of a locomotive, which entirely closes the stack so'far as the emission of sparks is concerned, but does not interfere with the draft.

My invention is particularly adapted for use on straw burning engines. Spark arresters which have beenused'with engines of this class have been made largely of gauze, somewhat after the manner of my invention, but these arresters have burned out quickly, owing to the fact that'the sparks stick to the gauze, but my invention is provided with -a gauze deflector for the sparks and also with a cleaning apparatus which may be easily actuated and which effectually removes the sparks and thus preserves the life of the arrester.

To these ends my invention consists of certain features of construction and combinations of parts, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of the spark arrester, representing my invention. Fig. 2 is a central vertical section of the same. Fig. 3 is a sectional plan on the line 33 of Fig. 1; and Fig. 4 is a broken plan view of the arrester.

The arrester is provided witha cylindrical base portion 10, made chiefly of gauze and adapted to be fastened tothe cylindrical portion of a smoke stack, while the enlarged upper portion of the arrester, which will be hereinafter described, is adapted to lie or be contained in the upper or funnel shaped por tion of the stack.

The cylindrical part 10 of the arrester has a gauze body, which is supported on the vertical side bars, 11 and the circular cross bars 12- and 12, thelatterbeing'arranged at the bottomand provided with an overlapping endhaving, perforations 13, see Fig. 1, to recei've a fastening bolt 14 so that the bottom may be regulated. The bar or band 12 has also meeting flanges'15, adapted to be bolted together so as to clamp ,the lower band or bar, and consequently the whole arrester to the smoke stack-.;

The gauze portion of the lower part 10 of the arrester has a split on one side, and at this point one edge overlaps the other, as

shown at '16 in Fig. 3, so as to provide for its adjustment and adapt it to be readily fastened to the stack.

The side bars 11 of the arrester project above the. cylindrical portion 10 and flare outwardly, as shown at 17 in Figs. 1 and 2, serving to support the top band 18 which is circular and carries the upper end of the ex terior screen 19 which ,.is funnel shape, as shown in the drawings, and is doubled over the band 18 and formed into a depending cone 20, the point of which comes directly over the center of the cylindrical portion 10 of the arrester, and thus the part 20 serves as a deflector to prevent the sparks from being thrown'out of the stack.

The screen 19 is at its lower end provided with a fastening band 21 adapted to be clamped-to the part 10 of the arrester, and the band 21 has meeting flanges 22 which are bolted together to hold the screen 19 in place. It will be observed that there is no clear open passage through the arrester, and conse quently the sparks cannot escape, but the mesh of the screen issufliciently coarse to permit a free passage of smoke.

The band 18 besides supporting the screen 19 serves as a support for the cleaner, and has adapted to be readily engaged by a poker, or other implement which the fireman may have handy, and the arm 27 projects through and is held in a slide plate 29 which moves over a plate 30 on thescreen 19, the plate 30 having a longitudinal slot 31 therein to provide for the lateral movement of the arm 27. It will be seen that by moving the arm back and forth, the cleaner will be oscillated, the ring 24: sliding in the hangers 23, and the bars 26 when thus moved, scrape the sparks from the cone deflector 20.'

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A spark arrester, comprising a cylindrical gauze covered base, and a funnel shaped screen having its lower end secured to the cylindrical base portion and its upper end formed into a depending cone, substantially as described.

2. A spark arrester, comprising a lower cylindrical gauze covered portion having means for attachment to a smoke stack and provided with upwardly projecting and outwardly in clinin g bars, a top band supported on the bars, and an exterior funnel shaped screen having its bottom adapted for attachment to the cylindrical part of the arrester and its upper part bent over the top band and formed into a depending deflecting cone, substantially as described.

3. Aspark arrester, comprising a lower cylindrical gauze covered portion having means for attachment to a smoke stack, a spraying screen secured to the cylindrical portion and terminating at the top in a depending conical deflector, and a movable cleaner embracing the conical deflector, substantially as described.

4. The combination, with the gauze covered spark arrester having the depending conical deflector. of the oscillating cleaner embracing the deflector and comprising parallel rings and connecting bars, substantially as de- 5. The combination,with the screen covered deflector having the supporting band at the top and the depending conical deflector projecting through the band, of hangers secured to the band, a cleaner held to slide in the hangers and arranged to embrace the deflec- HENRY E. BULTMAN.

Witnesses:

J. WILLIAMS, JOHN E. WHILT.