US89260A - willis - Google Patents

Description

R. B. WILLIS.

Magazine Stove. I

Patented April 20, 1869.

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R. B. WILLIS, OF ROCHESTER, NEW YORK.

Letters Patent No. 89,260, dated April 20, 1869.

BASE-BURNING- STOVE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

. Be it known that I, R. B. WILLIS, of the city of Rochester, in the State of New York, have invented a new and useful Stove; and I do hereby declare that the following is a full, clear, and exact description thereoffreference being had to the accompanying drawing, making part of this specification, in which- Figure l is a vertical secfion.

' Figure 2 is an inverted view of plate x, applied to the lower end of hollow shaft b.

The nature of this invention is in providing baseburning stoves with a device by which soft coal, and coal of small size, can be burned, and the supply more easily regulated.

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

Across the centre of the top-opening of the supplycham'ber, a, of stoves of this class, I place a bridgetree, f, in the centre of which, an opening is provided; to receive the shaft b.

This shaft has, on its. upper end, a collar, 0, which is provided with holes, e, to receive a bar, to turn A. This collar sustains the shaft on the bridge-tree f.

On this shaft I also fasten another collar, g, which operates against the under side of the bridge-tree f,

and prevents it from moving vertically.

This shaft 11 is hollow, to allow air to pass down to the fire, which gives more oxygen to the burning mass, and causes more perfect combustion.

The lower end of the shaft b is partially enclosed by a perforated plate, as, shown in fig. 2, which arrests the flame, and the gas, that might escape through the hollow shaft, isburned. I

On the outside of the shaft b, I fasten a screw-plate,

h, which is in diameter nearly the same as the inside of the supply-chamber.

This screw, or spiral plate, may either be made in one piece with the shaft b, or it may be made in sec-- tions, and fastened on it.

This screw sustains the fuel, and, by turning the shaft more or less, it feeds any desired quantity of fuel.

The object of this invention is to produce a means by which soft coal can be burned in base-burningstoves or other stoves.

' In the common stoves of this class, if soft coal is used, the heat will swell the coal, and it will run into a mass, and will not readily fall into the fire-pot when it is required. But by my device, the screw, or spiral plate h, being made to fit the supply-chamber, the flights prevent the coal from getting into a solid mass, and, when it is desired to replenish the fire, all that is necessary is to turn the spiral plate It with the sun, by putting the bar into the holes in the collar 0, and

it will press the fuel downward, and give the supply required.

What I claim as my invention, and desire to secure by Letters Patent, is'- 1. The screw-plate h, when applied to the supplyohamber of coal-stoves, for the purpose set forth.

2. Thehollow-shaft b, with or Without the perforated plate x, in combination with the elevated supply-chamber of coal-stoves, when it conducts the cold airdownward centrally into the combustion-chamber, for the purpose set forth.

R. B. WILLIS.

Witnesses:

0. FULTON. JAS. L. GAGE.

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