USRE10016E - Harbison gillett - Google Patents

Description

H. GILLBTT,

Asrsignor of one-ha1f to J. H. GILLEPT. PIREBOX ATTACHMENT POR FARM ENGINE BOITIERS.

No. 10,016. y Reissued Jan.. 24,1882.

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UNITED ST HARRISON GILLETT, OF LAKE CITY,

MINNESOTA, ASSIGNOR OF ONE-HALF TO JAMES H. GILLETT, OF SAME PLACE.

FIRE-BOX ATTACHMENT FOR FARM-ENG/INE BOlLERS.

SPECIFICATION forming part of Reissued Letters Patent No. 10,016, dated January 24, 1882,

Original No. 229.5270, dated December To all whom 'lt may concern f Be it known that I, HARRrsoN GILLETT, a citizen of the United States, residing at Lake City, in the county of Vabasha and State of Minnesota, have invented certain new and useful Improvementsin Fire-Box Attachments for Farm-Engines; and I do hereby declare the following is afull,clear, and exact description oftheinvention,that will enable others skilled in the art to which itappertains to make and use the same, reference heilig had to the accom panying drawings, and to the letters of reference marked th ereon, which l'orin apart of this specification. y

My invention relates to a portable fire-box for utilizing straw, hay, shaviugs, and other light combustible materials as fuel. It is intended especially for use in connection with vfarm-engines, and to enable the burning ot' th'e straw upon the spot when grain is thrashed by steampower.

It consists in an inclosed box or furnace provided with a flue leading from its upper portion and adapted for connection with a boiler- `furnace, and having at a suitablelcvel a horizontal series of wide rotatable grate-bars provided with projecting handles, ai outwardlyprojecting feed-chute leading luto the "box above the grate-bars and a wate-chamber below said grate-bars. The flue may be shaped to lit into the door of any ordinary boiler-furnace. The outwardly-projecting 'feed-chute enables the straw to be easily fed, while by means of the rotatable grate-hars the cinders and ashes are readily broken up and prevented from becoming banked, and the water in the chamber below the grate-vbaslcatches and condenses the light ashes, whi n would otherwise clog up the box and flues.

In the accompanying dr iwings, Figure lis a longitudinal vertical section ot' my4 improved fire-box connected to a farm-engine. Fig. 2 is a detached view of one el' the grate-bars and a portion of the boX-wrl.

The letter A indicates the tire-box, and B the flue leading into the furnace C of the farmengine boiler D through the doorway of said furnace.

The letter E designates one of the rotatable 2, 1879. Application for reissue tiled October 3, [881.

suitable beaiiiws iro'ectin Y from the walls,

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- 5o grate-bars, havingjournals e o'supported on the journal e at the front being prolonged through the wall, and provided with ahandle, f, and two short studs,h 7L', projecting at right angles.

Just below the aperture through which the frontjournal-extension, c', projects, is arranged a socket, t', adapted to receive the studs h h and prevent the grate-bar from rotating. The aperture is large enough,preferably elongated ver- 6o tic-ally, to permit the front journal of the gratebar to be lifted a sufficient distance to disengage the studs from the socket, when desired, in order to rotate the bar. When the stud h is in the socket the grate-bar will be held in a horizontal plane to support the fuel; but when the stud h is engagedv in the socket thebar is held with its end edges vertical, so that `the ashes and debris can drop through into the water-chamber. The grate bars may be, 7o of course, rocked or shaken only sufficiently to loosen up the fuel, and then secured again horizontally.

The letter 'F indicates the water-chamber, the functions of which have been already described; and G designates a water pocket or funnel secured to the outer snrfaceot' theboxwall, and having au outlet, g, through said wall, by means of which water may be supplied to the Waterchamber. Thefeed-chute H leads So into the box above the gratebars, and may extend outward any desired dist-ance to enable the fuel to be fed through it safely and conveniently, saidtube being provided with a suitable door at its outer end. The water chamber has arranged within it, in front of the ash-door j, an incline, k, over which the ashes may be raked outthrough said door. A draft-opening provided With a suitable door, l, is arranged in the front wall of the box, and by opening or 9o closing this door and the ash-door j the activity of combustion of the fuel may be modified as desired. Through the upper door, l, also'- the fire may be watched.

My lire-box may be used in connection with any kind of boiler-furnace, and the manner ot using it is obvious without particular explanation.

What I claim-is l. The inclosed box provided with a flue roo leading from its upper portion and adapted for connection with a boiler-furnace, and having at a'suitable level a horizontal series of wide rotatable grate-bars provided with pro- 5 jecting handle or handles, and outwardly-projeeting feed-chute leading into the box above the grate-bars anda Water-chamber below said grate-bars, substantially as described.

2. The fire-box A, having Hue B, rotatable grate-bars E, water-chamber F, and a suitable fuel-feed opening, substantially as deseribed.

3. In a fire-box, the combination, with the water-chamber below the grate-bars, of the Water-pocket G, having near its bottom an opening leading into said water chamber, substantially as described.

4. In a tire-box, the Water-chamber below the grate-bars, having arranged Within it an incline, 7c, leading from the bottom thereof to the doorway, substantially as and for the purpose set forth.

5. A portable straw-burning detachable rebox, having a grate and provided with an opening or door through which the straw may be fed, and having an opening or flue for applying the same to a farm-engine boiler for the purpose of generating steam, substantially as described.

In testimony whereof I aix my signature in presence of two witnesses.

HARRISON GILLETT.

Witnesses GEO. L. MATCHAN, J AMES H. GILLETT.

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