US2088A - Wind-chest or bellows-box attached to hearths or - Google Patents

Description

UNITED STATES PATENT OFFICE.

CHARLES FOSTER, OF ROCHESTER, NEW YORK.

WIND-CHEST OR BELLOWS-BOX ATTACHED T0 HEARTHS OR BLACKSIVIITHS FORGES.

Speccation of Letters Patent No. 2,088, dated May 11, 1841.

T0 all whom t may concern p Be it known that I, CHARLES FosTE-R` of the 'city o-f Rochester, in the county of Monroe and State of New York, have invented a new and useful -Improvement in Tops or Covers of Bellows-Boxes for Blowing the Fires of Forges and Furnaces; 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 view in perspective of the box. Fig. 2 is a drawing of the outside of the cover or upper part o-f the box, and Fig. 3 is a drawing of the interior of the'box without the cover.

The nature o-f my invention consists in this, that I construct a bellows box inwardly so as to produce two equal currents of air, and that when air has entered the chamber in any bellows box, I conduct and bring such air to act upon the hre placed above the box by two fiat or oblong tubes, standing obliquely, one leading from each end of the chamber and thus I concentrate the draft of air and make it act on the tire far more powerfully and efficiently than by any contrivance now known.

To enable others skilled in machinery to make and use said improved bellows box I will proceed to describe its construction and operation.

I first construct a box in size twelve by eight inches or of any desired dimensions, made of cast or sheet iron or other metal as desired. (See Fig. l.) lIn this box I place partitions so that there will be anoblong chamber (a, Z), on Fig. 3) with an opening or entrance to the same on each side, (at c, c,

on Fig. At one end of the box and at each side, as far back as the said openings to the chamber, is a hall or passage for the air to pass, (7L, z', m, on Fig. 3.) At the last named end of the box a tube (fn, on Fig. 3) connected with the bellows admits air to the said passage. In the top or cover of the box directly over the said chamber are two fiat or oblo-ng tubes standing oblique with the surface of the cover and inclining each toward the other (0 and fr on Fig. 2) and approaching as near to each other as desired on the top having a regard to the distance it is desired the focus of the currents of air should be above the tubes.

A box like the above is placed under the fire of a forge or furnace, the coal being placed on the top of the box and. over and about the flat tubes.

When a bellows is applied to the tube (n on Fig. 3) and made to blow, the air passes through said tube into the bellows box and then passes up through the flat tubes (0 and r on Fig. 2) and with great power blows the coal lying above the tubes. The cinders naturally fall and occupy the space between the two flat tubes.

I disclaim the original invention of the bellows box, and

What I claim as my invention, and desire to secure by Letters Patent, is'- The method above described of constructing'the top of the box by forming it with two oblong apertures or tubes inclined toward each other for the purpose of concentrating the draft of air and increasing its power of action on the fires.

CHARLES FOSTER.

Witnesses:

RICHARD TEMPLE. MosEs CHAPIN.

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