US50258A - Improvement in grates for stoves - Google Patents

Description

W. MclLVAlN. Grate for Stoves.

Patented Oct. 3, 1865.

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WVILLIAM MOILVAIN, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN GRATES FOR STOVES.

Specification forming part of Letters Patent No. 50,258, dated October 3, 1865.

To all whom it may concern:

Be it known that I, WILLIAM MOILVAIN, of the city and county of Philadelphia, and State of Pennsylvania,have invented a new and useful Improvement in Grates i'or Stoves, Ranges, &c.; and I do hereby declare that the following is a full,clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which--- Figure l is a perspective view of a tire-box of a stove or range. Fig. 2 is a vertical crosssection of the same. Fig. 3 is a perspective view of one of the grates O in an inverted position.

Like letters in all the figures indicate the same parts.

The nature of my invention mainly consists in constructing and arranging the front and bottom grates of a stove or range in such a manner as to provide for an easy and expeditious changing of the bottom grate or grates from one altitude to another; tovary thedepth of the fire-chamber so as to accommodate it to the reception of any desirable amount of fuel and still have the top surface of the fuel nearly on a line with the draft-space which communicates with the oven, so as to eifectually throw the heat into the same.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A. represents the fire-box of a stove or range.

B B B B are longitudinal bars, which compose the front grate, being divided in their middle by the upright G, which separates the bottom grates,DD. In small fire-places a single grate is sufficient, and consequently the upright is dispensed with. The bars B have vertical projections a, so as to give a sufficiently open front for draft on the front side of the fire-box. The spaces 2) between the upper edges of the bars B and the lower ends of thesaid projections care sufficientfor the grates D to be passed in freely, and to allow the shaking of the same to clear the fuel of ashes. The said grates are placed somewhat on a descend ing angle to incline the fuel to the rear side of the chamber, so as to effectually throw the heat through the draft-space c. There is a lip, 61, on the upper edge of the front bars of the grates D D, which bears against the projections a of the bars B to sustain the grates in their proper position, and a groove, 0, in the under side of the same, as seen in Figs.2 and 3, which bears on the upper edge of the contiguous bar B and acts in conjunction with the lip to effect this object, and also to keep the grates in their lateral position for shaking them. I

E is a lever, by means of which the grates are shaken, the fulcrum partf being placed in an opening, g,0f a grate, as seen in Figs.1 and 2, when the lever is to be used.

Having fully described my invention, what I claim therein as new, and desire to secure by Letters Patent, is-

l. Adjusting the grates D at different altitudes in the firechamber by means of the bars B with the vertical projections a, substantially as described, and for the purpose specified.

2. Constructing the front bars of the grates D with the lips d and the grooves e, substantially in the manner and for the purposes set forth.

In testimony that the above is my invention I have hereunto set my hand and affixed my seal this 24th day of June, 1865.

WM. MGILVAIN. [L. s.] Witnesses:

STEPHEN USTIGK, JOHN WHITE.

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