US176750A - Improvement in grates - Google Patents

Description

J. LEWISf A GRATE.

No.1'76f750fl I Patente@ May 2,-1876'.

N. PETER. H o-Lmi RA HER. WASMI UNITED STATES PATENT OFFICE.

VJASON LEWIS, OF PROVIDENCE, `RHODE ISLAND.

- IMPROVEMENT |N GRATVES.

Specification forming part of Letters Patent No. 176,750., 'lated May 2, 1876; application filed September 23, 1875.

To all whom it may concern:

Be it known that I, JASON LEWIS, of the city and county of Providence, State of It ode Island, have invented certain new and useful Improvements in Furnace-Graines; and

I do hereby declare that lthe following is a full, clear, and exact description vofthe same, which will enable others skilled in the art to make and use the same, reference being had -to the accompanying drawings, forming part of this specication. Y

Figure 1 is a longitudinaljsection of my improved furnace-grate, through the center of the grate andthe handle. y Fig. 2 is atop view of the same. 'Y

Similar letters of reference indicate corresponding parts.

'lhe invention consists inthe peculiar arrangement'of the several parts,as is more fully set forth hereinafter.

In the drawings, a is .a projecting har cast on the grate, and provided with the handle b, by which the grate is shaken, either by recip rocatingin and out, or by swinging from side to side. c c c are concentric rings, having projections cast on the same, and bars, by Which the several rings are united to the central hub d, where the grate rests on the bearers, to which the same is secured bya central pin,

surrounded by a liange or hearing-surface, on v which it can be freely swung from side to side; The bearers g, supporting the grate in the center, rest on the slide h by the lips e, so that they may slide in or out; and, as the grate is secured to the bearers by the central pin, when the handle b is pulled forward the grate and thebearers will slide forward on the slides hlt. The arm a rests within the slidef,

so thatwhen the handle b is moved from side to side the slide will move with 4 the same, thus covering the slit through which the handle moves, and prevents the ashes from pass.-

ing through the slit into the room. lhe peculiar construction of the grate, in which are a number of concentric rings, c c c, having projections cast on them and united to the central hub by bars, allows considerable freedom for expansion and contraction under variations of temperature, and insures a more thorough Ashaking out of the ashes from the tire. By casting the arm a and handle b in onepiece with the grate, the mislaying or loss l' ofthe same-now a usual occurrence-is pre- 4vented,and also the time required toproperly insert the handle, and secure the same safer,

whilethe whole can be cast with less labor'7 as Witnesses:

JOSEPH A. MILLER, IL. V. RoENWooD.

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