US165194A - Improvement in fire-places - Google Patents

Description

1. ADAIR.

Fire-Place. N0,l65,194,` Paftentedluly 6,1875.

UNITED STATES PATENT OEEIOE.

JAMES ADAIE, OE KILLBUCK TOWNSHIP, (PITTSBUEG` P. 0.,)

COUNTY, PENNSYLVANIA.,

IMPRCVEMENT IIN FIRE-PLACES. t

Specification forming part of Letters Patent No. 165.194, dated `July 6, 1875; application filed To all whom it may concern:

' Be it known that I, JAMES ADAIR, of Killbuck township, (Pittsburg P. 0.,) State of Pennsylvania, have invented an Improvement in Fire-Places, of which the following is a specication: f

The object of my invention is to control the lpanying drawing, extending from the interior of an ordinary ash-pit, B, Figs. l and 2, thence past the rear of a low-down7 grate, G, Figs.

2 and 3, and its tile D, Figs. l, 2, and `3,'into a chimney-Hue, E, Fig. 2, in combination with a Valve or damper, F, Figs. 2, 3, and ,4, balanced on trunnions, Which turn in suitable bearings of a frame, G, Fig. 4, closely fitted into the said dust-flue A, Fig. 2. To the upper surface of said valve F, Figs. 2, 3, 4, is centrally aflixed a perforated lug or ear, made to `turn on the hooked end of a thrusting valverod, H, Figs. 2, 3, 4, which passes througha central hole in the upper part of a re-place `frame I, Figl, thence out into the room,

where it terminates in an ornamental handle or knob, by which it is operated. The principal outlet Or passage from the interior of the ash-pit B, Figs. 1 and 2, to the chimney-due E, Fig. 2, is directly through the low-down F grate t), Figs. 2 and 3, as usual; but the secondary outlet A, Fig. 2, may extend past the ends of the grate C, Figs. 2 and 3, instead of `the rear, the'valve-rod H, Figs. 2, 3, 4, to be located accordingly. The ash-pit B, Figs. l and 2, is supplied with air from-the cellar or from Outdoors by suitable registers, openings, or pipes near the upper part, which should March l., 1875.

not admit more air than can pass the valve F, Figs. 2, 3, 4, when it is wide open. The Operation is as follows: By pushing in the valverod H the valve F closesand the air entering the ashpit B passes through the fuel in the grate C, but by drawing out the valverod H the air passes behind the fuelpast the open) valve F, and up the chimney. By Opeliing the valve, as described, before raking the fire the ashes are sucked into the ash-pit, and, the air-current being continuous, the gratebars are kept cool.

The inode heretofore employed to check the fire in a low-down grate required an air-tight `ash-pit and the grate to be on the rst door to be effective. lt having proven practically iinpossible to make ash-pits air-tight, most lowdown grates have been unmanageable, but by my invention the grate canbe used and controlled on any door of a house, while air freely F enters the ash-pit, with which the grate is connected.

I know a dust-flue constructed behind a grate is au Old invention; also that an ash-pit with a grate arranged above it has been made to communicate with the room by a damper in the hearth in front of the grate for regulating the draft.

I claim as my invention- In combination with an air-supplying ashpit, a tire-chamber, an interposed low-down grate, and an independent ilue leading fromV such ash-pit past'the lire-chamber into the chimney, and provided With adarnper, all arranged substantially as set forth, whereby, when the damper is open, the main line of draft shall be up suoli independent ilue, but when closed Shall be throughthe lire.

JAMES ADAIR. Witnesses:

R. G. HOPE, SAML. W. HAY.

ALLEGHENY

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