US154340A - Improvement in stove-grates - Google Patents

Description

UNITED l sms PATENT( OFFICE,

GEORGE It. MOORE, lOE PHILADELPHIA, PENNSYLVANIA.

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Specification forming part of Letters Patent No. 154,340, dated August 25, 1874 application lled July 20, 1874.

To all whom it may concern:

Be it known that I, GEO. It. MOORE, of the city of Philadelphia and State of Pennsylvania, have invented Improvement in Grate- Hangings, of which the following is a specification:

The object of my invention is to provide more convenient and extended facilities for operating stove and heater grates in all diapplied my invention to a skeleton base of an ordinary stove, including, also, the lower portion of an ordinary fire-chamber, sustained in its normal position above the grate.

I provide for a vertical motion Vand adjustment of the grate by means of `a grate-rest, with rigid arms extending down through cylindrical guides and apertures in the bottom of the stove, where, in this case, they are connected with an operating lever, which lever is jointed at the back side of the bottom plate, and sustained at the manual end of it by a serrated support at the front of the stove.

The advantages of this arrangement are,

that I avoid cutting through the external casings of any stove or heater above the bottom plate, which is sometimes quite desirable.

A horizontal vibration and a tilting motion I have also provided for by having a graterest of such form as to admitof all the required freedom of movement, and then connecting the grate to it at its center by a staple (between two bosses on the central grate-bar) dropped loosely through an aperture in the center of the grate-rest of sufficient length in at least one of its prongs to hold it in place, so that while the grate turns freely in the loop of the staple, in the direcl tion required for tilting it, the staple lalso moves freely, or as much as may be required, in the aperture of the grate-rest in the direction for a horizontal vibration, and thus these three motions, with all their possible combinations, are provided for by these few and inexpensive devices.

rIhe bosses upon the central bar of the grate Gr should be made of snflicient height to protect the staple C from undue exposure to burning out.

Figure 1 is a vertical side elevation of the base (in skeleton form) of an ordinary coalstove, showing also the lower portion of the fire-chamber in its normal position. Fig. 2 is-a plan view of the grate and grate-rest, showing also the guides through which the arms of the grate-rest are passed to the operating lever below. Fig. 3 is a sectional elevation taken crosswise to Fig. 1, and showing the base of the stove to the top of the grate. m

A is the bottom plate of the ash-pit, below the grate; a a', the apertures and guides, through which the grate-rest is connected with the lever below. B is the voperating lever, for raising or lowering the grate vertically. F is a serrated support, for holding the lever B, and thus the grate, at any desired height. E is the grate-rest, and e e the rigid arms by which it is connected with the lever B.

It will be seen that the apertures through A are protected so that no leakage of ashes can take place. G is the grate, and g the operating handle extending out from it. C is a staple, and, while it holds in combination the grate and grate-rest, it affords the former a double joint for action, as before explained.

In regard to the device shown in the patent of N. Bramer, July 23, 1867, as a gratehanging, which laifords both the tilting and the vibrating motions to the grate, that device is ahooked prong extending down below the grate, and. hooking sidewise into an aperture in a cross-bar. It does not' hold the grate centrally, in both its motions, with the precision and reliability I desire, and which I obtain by my staple O.

The devices are not alike, and I do not desire to claim that invention.

I claim as my invention- 1 The staple C, connecting the central bar of the grate G by a double joint to the graterest/E, substantially as shown.

' 2. "The grate Gr, the verticallyadjustable grate-rest E, and staple C, all combined and operating substantially as shown.

GEO. R. MOORE. lWitnesses:

4CHARLES M. CARPENTER, THEODORE GANFIELD, Jr.

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