US87412A - Improvement in smiths beiilows - Google Patents

Description

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J. Pf HEMMINGSEN, or MARSHALLT'OWN, `row-A.- Letters Patent No. 87,412, dated Ma/,rch 2, 1869.

IMPROVEMENT IN SIVIITEIS' BELLOWS.

, *Mrk- To all whom 'itma/y conce/rn Be it known that I, J. P. HEMMrNesEN, of Mar# shalltown, in the county of Marshall, and State of Iowa, have invented a new and useful Improvement in Smiths Bellows; and I do hereby declare that the following Ais a.full, clear, and exact description thereof',

.which will enable others skilled in the art to make and use the same, reference being had to the accompany-v ing ldrawings, forming part of this specification, in which- Figure l is .a side view of my improved bellows, parts being broken away to lshow the construction.

Figure 2 is a detail sectional view of the same, taken 'through the line a: x, iig. l.

. Similar letters of reference indicate like parts.

I My inventionA has for its object to improve the construction of the ordinary smiths bellows, so that it may receive and retain a supply of air, to be given ofi' gradually, to keep up a blast upon the fire, to heat one piece of iron while the smith is working upon a piece previously heated, without the employment of a bel-A lows-blower being necessary; and

1t consists in the arrangement of parts, as Will be hereafter more fully described. i

A are the posts, which form theffeet and frame of the apparatus. y

B is. an ordinary bellows, except that it is made without a nozzle. l

'lhe upper plate ofthe bellows B is stational'y, and is securely attached to the bottom of the box C.

The lower or movable plate of the bellows B has the lower end of the connecting-rod D pivoted to its rear end, the upper end of which rod is pivoted to the end of theV arm E, the other end of which is rigidly attached to theshaft F. y

The shaft F works in bearings in the frame A, and to one of its ,ends is attached the end of the lever G, by which the bellows is worked.

The box-reservoir or chamber C is attached to the frame A, and toits bottom is attached the top plate of the bellows B.

The top, c', of the box C is made of flexiblel material, Aand in about the'shape of the frustum of a pyramid, so that it may rise above o r sink into ,the box C, according to the amount of air that may be in said box.

Upon the top of the exible top or cover c1 is placed a weight, c2, which, by its downward pressure, may force the air out of the box C in a steady stream.

A hole is formed through the bottom ot the box C and the top plate of the bellows B, in which -is placed v a valve, H, opening upward, so that it may be opened by the inward pressure of air from the bellows B, and be closed by its own weight, or4 by the pressure of the air within said box C.

Lis the nozzle or pipe, by which the air is conducted from the chamber C to the fire.

The inner orifice of the pipe or nozzle I is covered bythe valve-plate j, attached to the inner end of the short shaft K, which passes out through the wall of the' box C, and to its outer end is attached a lever or handle, L, by.whieh the Valve-plate J is operated, to open, close', or' partially open or close the inner orifice of the nozzle or pipe I, to prevent or regulate the escape of-"the" air lhrogh the said nozzle, as may be required.

Having thus described my invention,

I claim asnew, and' desire to secure by Letters Patentj The arrangement of the bellows B, having a fixed top plate, which vbrms the bottom of the air-chamber O, the weighted iiexibl'e cover c, chamfered valve and seat H, nozzle I, valve-plate J, shaft K, and lever L,-

with each other, as herein described,`for the purpose specified.

Witnesses: 'J'. P. HEMMINVGSEN.

J. M. PARKER, DAVID BURNS, H. K IME.

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