US653518A

US653518A - Spark-arrester.

Info

Publication number: US653518A
Application number: US72226599A
Authority: US
Inventors: Stephen Salsbury Martin
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-06-29
Filing date: 1899-06-29
Publication date: 1900-07-10
Anticipated expiration: 1917-07-10

Description

Nu. 653,5!8. Patented July l0 S. S. MARTIN.

SPARK ARRESTER.

(Apglication filed June 29, 1899.)

(No Model.)

x irllllllflll III! A OHNEYS ITED TATEs PATENT OFFICE.

' STEPHEN SALS BURY MARTIN, OF EVERGREEN, COLORADO, ASSIGNOR OF ON'F-IIALF TO JOHN WESLEY MARTIN, OF SAME PLACE.

SPARK-AR-RESTER.

SPECIFICATION forming part of Letters Patent No. 653,518, dated July 1.0, 1900.

Application filed June 29,1899. Serial No. 722,265. (No-model.)

T0 all whom it may concern.- Be it known that I, STEPHEN SALSBURY ll/IABTIN, of Evergreen, in the county of Jefspark arrester, collector, and"di'reictof'dffi Io'plete within itself and so constructed that it may be readily attached to the top of any smoke stack, pipe, flue, or chimney and whereby the arresting, collecting, and directing screen, kept constantly rotated by-the natural or forced draft through thesmokepipe,will cause the sparks, einders, and ese'aping coal to be conveyed to a receptacle in which said products will settle and be conducted back to the fire-box or fire or to any desired point below the device.

The invention consists in the novel construction and combination of the several parts,'as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanyin drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of the improved device. Fig. 2 is avertical section thereof, and Fig. 3 is a perspective view of a bracket used in the construction of the device.

The base Ais in .the form of a pipe and is given such shape that it may be fitted over or into a smoke-stack, chimney, or flue, and a funnel-shaped casing B is firmly secured to the upper portion of said base A, forming a receiving-chamber for the cinders, coal, and sparks. The base A extends a slight dis- 4 tance withinthe bottom portion of the chamber 10, and a conducting-pipe for the waste products of combustion is attached to the upper portion of the base AI Said'conductingpipe 11 is at an angle to a line drawn-perpen= dicularly through the center of the device, and one side'of the conducting flue or pipe 11 is made to rest against a wall c the chamber 10, formed by the funnel-casing B. The upper end 11 of the conducting-flue, howcasing, is" carried vertically upward, so that the upper edge of the conducting-flue 11 is ever, where said flue engages with the f unnel- The conducting-flue is secured to the funnelcasing by means of bolts or rivets 12 or their equivalents, and a bracket is located upon the inner inclined surface of the conducting-flue. This bracket comprises an upright section 13,

a horizontal table-section lg thecenter of the bracket by means of a suitable nut 18, as illustrated in Fig. 2. The lower end 19 of the post is made tapering to form a cone 19, and ,a cone 20 is located at the upper end of the post 16. "A sleeve 21 is loosely fitted around the post 16, and said sleeve is provided at its lower end with a cap facing the lower cone 19 of said post, and said cap carries balls 22, that travel on said cone 19, while a second cap is formed at the upper end of the sleeve, likewise carrying balls 22, that travel upon the upper cone 20, as shown in Fig. 2. The sleeve 21 is provided at the top with a cap 23, that extends over the upper end of the post 16 and the upper cone 20.

approved manner to the bottom of the sleeve 21, and while this screen is shown as inclining from its outer edge toward the center it may be made straight,if desired. Said screen is of such dimensions that it entirely covers the upper end of the conducting-fiue'll and extends quite close to the upper portion of the funnel shaped casing B, is provided with a zdownwardly-' extending marginal flange 24, and braces 25 are attached tosaid flange and to projections from the cap 23. The said screen is provided with a series extending from its periphery to a point near the center. 7 gage with the screen, and the fans are curved and their inner faces are at an acute angle to the screen; Preferably the upper edges of the fans or wings at their inner ends are more or less beveled. These fans are all curved in the same direction and are so placed that as they reach the conducting-flue 11 the natural or forced draft from the said-flue will strike tion of said bracket, and the post is held to The lower edges of the fans en-' of the said funnel-casing, as shown in Fig. 2.

A screen 0 is secured in any suitable or The screen 0 I of wings or fans 26 upon its upper' surface smoke-stack, pipe, line, or chimney serves as.

adjustable, having bolts and nuts or setscrews at their outer ends which will hold.

thei'n'firmly in place when. adjusted at the right angle to impart to the screenthe desired speed time. The speed of the screen may be increased or diminished by placing the wings or fans in more or less of a flattened or horizontal position or in'a more or less upright position. I

A tube 27 enters the chamber of the device at or near the bottom, and this tube is carried downward to any desired point below the'device-as, for example, it may be carried to the fire-box or to the fire direct. Thus it will be observed that the application of the natural draft or forced draft caused by the exhaust-steam from the-engine entering the a motor for the device.

As the screen revolves it carries the cinders or other waste products of combustion from the .top of the stack to the surrounding chamber 10, and as the screen carries the sparks or cinders beyond the influence of the draft they naturally gravitate to the bottom of the chamber 10, in which there is practically no draft, and the arrested material will then pass into i the small pipe 27 in the bottom of the chamber 10 and will be conducted back to the fire or to'any other desired point. The pipe 27 is preferably made continuous from the chamber 10 to the point where the material is to be delivered.

I desire it to be. understood that instead of using ball-bearings at the upper end of the post or shaft 16 said post or shaft may be provided with a hardened-steel pivot at that point.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A spark-arrester, comprisinga conducting-flue having an angular upper end, a funnel-shaped easing into which the angular upper end of the conducting-flue projects and against the wall of which the said flue rests, the said casing extending above the top of the angular end of the conducting-flue, and having an outlet in its side at or near the lower end, a screen centrally mounted in the upper part of the casing to revolve therein Z and over the angular end of said conductingnucanurn close proximity thereto, and wings on the upper face of the screen, substantially as described. V

2. A spark-arrester, comprisinga cond ucting-fiue having an angular upper end provided with a bracket at its end, a funnelshap'ed' per end of the conducting-flue and extending above the same, the said casing having an outlet in its'side at or near the lower end, a

screen mouuted'on the bracket or the angua or number of revolutions in a given a shaped casing lar upper end of the conducting-fl ue and revolving over the upper angular end of the conducting-flue and in close proximity to the same, and wings on the upper face of the screen, substantially as described.

3. A sparlr-arrester, comprising a conducting-flue having an inclined upper portion, the upper end of the outer wall of theflue being extended upward vertically, the said inclined end being provided with an external bracket, a funnel-shaped casing surrounding the inclined portion of cured thereto, the said casing'being provided at its lower end with an outlet, a screen havin g a downwardly-extending marginal flange and mounted on th'ejbracket to revolve over the upper end of the inclined portion of the conducting-flue and in close proximity thereto, and wings secured to the upper face of the'screen, substantially as described.

4. In a spark-arrester,tlie combination with a funnel-shaped casing having an inclined flue therein and provided with an outlet at or near its bottom, said flue extending nearly to the top of the casing, of an angular bracket secured to the upper end of the the conducting-flue and se-' flue, a post mounted in the bracket, a sleeve surrounding 1 to the bracket, a sleeve mounted on the post and provided with a cap, a screen secured to the-lower end of the sleeve, rods secured to 5 the margin of the screen and to the cap of the sleeve, and wirigs on the upper surface of the screen, substantially as described.

6. A spark-arrester, comprisinga funnelhaving an outlet at its lower end, an inclined (fine in said casing, a post f mounted in the upper part of the casing, said 1 post being provided. sleevefitting loosely 1 caps at its ends, balls between sleeves and the cones of the post, a screen sewit-h cones at its ends, a on the post and having the caps of the cured to the lower end of the sleeve, wings on I the upper face of the screen, a cap secured to the upper end of the sleeve over the post, and irods secured to the said cap andto the margin of the screen,

substantially as described. 7. In a spark;arrester,the combination with a casing, a fine in the casing, and a screen 2 mounted to revolve in the casing over the top of wings on the upper face of the of the flue,

having their inner ends screen, said wings lpivoted and their outer ends adjustably se-' gcured to the margin of the screen, jtially as and for the purpose set forth. casing surrounding the angular upsubstan- Witnesses:

' WILLIAM Ross, HENRY Powma.