US259928A

US259928A - Drag-saw

Info

Publication number: US259928A
Authority: US
Publication date: 1882-06-20
Anticipated expiration: 1899-06-20

Description

v (No Model.)

J. F. SOHERER.

DRAG SAW.

No. 259,92 Patented June 20, 1882.

WITNESSES I I BY uufl v er ATTORNEYS; V

UNITED STATES PATENT OFFICE.

JACOB F. SGHERER, OF NEW BREMEN, ILLINOIS.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 259,928, dated June 20, 1882.

- Application filed March 2,1882. (NomodeL) ing logs and cord-wood, but is applicable to various other uses.

The invention consists in a novelconstruotion, arrangement, and combination of a base or frame for supporting theworking parts of the machine and the wood to be sawed, a

clamping device for holding the wood or log,

and certain details hereinafter more particularly referred to.

Reference is to be had to the accompanying drawing, which represents a perspective view of a machine embodying my improvements.

The working parts of the machine are supported by a horizontal frame, A, provided with vertical standards B and O.

In the standard B is journaled a shaft, d,

which carries a driving-wheel, E. This wheel is provided with a erankhandle, j, which may be adj usted, to provide for different degrees of leverage, in a slot, 6, in one of the spokes of the wheel by means of a not on the screwthreaded shank of the crank-handle.

In the standard 0 a shaft, G, has its bearings. This shaftcarries at one end a bandpulley, g, and at the-other end a crank-wheel, It. The pulley 9 receives motion from the driving-wheel E through a band, i, and conveys it to the crank-wheel h.

On one of the sills of the frame A is a block, J, in which works a rectilinearly-sliding bar, K. The rear end of this bar isconnected by a pitman, L, with the crank-wheel h. The front end of the bar is formed into a fork, m.

About midway between the fork m and the block J is pivoted the lower end of a bar, N, the upper end of which is pivoted to the upper rear corner of the saw-frame P. The lower rear corner of said saw-frame works in the Near the front end of the frame A are two pairs of posts, R R The posts B are stationary, and the posts R are adjustable in mortises S in the sills of the frame. Between the posts It is hinged or pivoted one end of a curved elastic iron bar, T, the free end of which is arranged to engage with the teeth of a ratchet-bar or standard, V, extending upward from the frame A.

The operation is as follows: The log W is placed transversely on the frame A, resting against the posts R, and the posts R are adjusted as near as possible to the log. The

curved bar T is then swung over on top of the log and engaged with the ratchet-bar V, so as to clamp the log firmly and rigidly in place on the frame. Rotary motion being imparted to the wheel E, pulley g, and crank-wheel h, a reciprocating motion is conveyed to the bar K, and through it and the bar N to the sawframe P; As the work of the saw progresses the weight Q bearing down upon the saw in front of its fulcrum keeps it pressed down to the work until completed.

The advantages of my invention are: It is withthe said pulley, and the saw-frame P, of

the pitman L, the reciprocating bar K, provided with the forked end m, and the bracebar N, substantially as and for the purpose set forth.

2. In a sawing-machine, the combination, with the frame A and the driving mechanism, of the pitman L, the reciprocating bar K, the block J, the brace N, and the saw-frame P, provided with the adjustable weight Q, substantially as and for the purpose set forth.

JACOB FREDERICK SCHERER.

Witnesses O. W. BISHOP, GEO. SGHUBERTT.