US803A - Smith s forge - Google Patents

Description

AMOS BISSEY, OF TINICUM TOWNSHIP, BUCKS COUNTY, PENNSYLVANIA,

SMITHS FORGE.

Specification of Letters Patent No. 803, dated June 23, 1838.

To all whom it may concern.'

Be it lmown that I, AMos BIssnY, of

i Tinicum township, in the county of Bucks and Sta-te of Pennsylvania, have invented a newY and useful Improvement in Smiths Forges, called The Perpetual Smiths Fire, which is described as follows7 reference being had to the annexed drawings of the same, making part of this specification.

The nature of my invention consists in constructing a cast iron box A Figure 1 whose figure is that of a frustum of a pyramid inverted, having a grate B for anthracite or other coal at the upper or larger end and a slide C for `opening or closing the draft at the lower or smaller end. This box is built in the brick work of the forge in any convenient place with its large end containing the grate a few inches below the surface of the forge-thus forming' a space for the coal which rests upon the grate. In the side of the boX is a round aperture D to admit the twyer of the bellows for creating the blast. A hood E, Fig. 2 is constructed ofvsheet iron to be placed over the box and grate for increasing the draft when the fire is to be kept up without the aid of the blast. This is used only when the blast is not used, in which case the slide is drawn out (to create a draft under the grate) by means of a long handle F Fig. l, the slide moving in grooves or channels in the side of the box.

To use this .improvement the slide must be inserted. Anthracite or other coal and combustibles must be placed upon the grate and ignited 'and the blast set in operation which soon iills the boX with air which rises through the grate and supplies the fire. The iron to be heated is then inserted into the fire in the usual manner. When it is desired to keep up the fire without the aid of the blast the hood must be put over the grate and the slide withdrawnthe draft from below and through the box, grate and hood will then be sufiicientwithout the blast.

By this improvement the twyer or tew'-V iron is not liable to be burnt out and de-J stroyed Anthracite or other coal` Vcan be used andthe fire kept up perpetually and the grate is also prevented from burning out by the air below it in the box.

This improvement has already been tested and found to answer well and itwill no doubt soon be generally used instead of the present construction of forges in which anthracite coal cannot be used.

I do not claim the constructing of a cast Y iron or other boX7 covered bya grate, and

receiving the blast through an opening beow said grate, this having been before used ut The invention claimed anddesired to be secured by Letters Patent consists in Constructing such a box and placing it in.

the bottom of the forge in combination with a grate at top and a slide at bottom and an aperture in the side below the grate for the tew irons introduced through said aperture for makingthe blast in igniting anthracite or other coal and keeping up a perpetual fire by withdrawing the slide in the bottoms of the boX and putting a hood over the fire to increase the draft in the manner before described cryin any other mode constructed on similar principles. p i

AMOS BISSEY.

Witnesses: WM. I. ELLIOT,

EDMUND MAHER. Y

Images