US62407A

US62407A - Alfeed j

Info

Publication number: US62407A
Authority: US
Publication date: 1867-02-26
Anticipated expiration: 1884-02-26

Description

gnithitatzs utitt @ffice ALFRED J. GRAIN GER, OF WILMINGTUN, ILLINOIS.

Letters .Patent o. ',si'dated February 2G, 1867.

dige Stlgchule aferra tu in tlgrs glitten @extent mit mating gaat nf tigt time.

-TO ALL WHOM IT MAY CONCERN:

Bc it known that I, ALFRED J. GRAINGER, ot' Wilmington, Will county, State of Illinois, have invented a new andimproved Tilt-Hammer; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to malle and use the saine, reference being had to the accompanying drawing, forming part of this specification.

The drawing shows a side view of my improved tilt-hammer.

This invention relates to new and useful improvements in tilt-hammers; and the invention consists in driving the hammer by a connecting-rod, which takes hold of the power end ofthe helve7 and connects it with the crank of the driving-shaft, and then providing the driving-shaft with a eounterbalance for balancing the weight of the haninierso as to give a more oven strain on the driving devices; and also in providing the helve of the hammer with a spring joint, so that the hammer may adjust itself to any thickness ot' metal which is placed on the anvil, or terminate its hammering stroke at different depths of stroke, while the power end ofthe helve has always the saine depth of stroke, as hereinafter explained.

A, in the drawing, is the hammer; B is the helve, which is mounted on a rock-sl1aft or fulcrum, c, in the ordinary manner, and which is constructed in two parts, B B; and these parts are united by a hinge joint, I1; and a certain measure of stiffness is given to the helve at the joint by a spring, d, which is riveted or bolted to B', and presses upon part B, as shown. Ff is a crank-shaft, which 'drives the hammer by means of a connecting rod, g, which connects the crank f, of the driving-shaft Ii', with the power end ot' the helvc B B. The sha-ttl has a ily-wheel, H, and has, further, a counterbalance or weight, I, attached to one side, s o as to balance the weight of the hammer A. The arm z', which projects from shaft I", and which carries the eountorbalanee I, has a screw-thread out on its outer end; and the weight I is screwed thereon, and may be screwed out'or in on the said arm e', and nearer to or farther from the shaft F, and thereby the counterbalance powers of the weight I made variable or adjustable. k shows the crank, to which the power is applied. By means ofthe counterbalance I the 'weight of the hammer is balanced on the driving-shaft F, and the working of the parts is more smooth and free from shocks than heretofore; and, with a rigid connection, g', between the driving-erankf and the helve B', the hammer may be driven with a much greater velocity, and a hammerot' a given weight may he inode to strike a heavier blow than when the hammer is left to fall by its own weight, as ordinarily.

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

1. I claim the connecting-rod g, crank-shaft F f, and counterbalance I, in Combination with thc hammer A B, substantially in the manner and for the purpose set forth.

2. I claim the hammer A, springjointed` helve B B, connecting-rod g, and crankshaft F f, substantially as and for the purpose described.

ALFRED J. GRAINGER..

Witnesses:

GEORGE STRATHDEE, JAMES L. YOUNG.