US242886A

US242886A - Drag-saw

Info

Publication number: US242886A
Authority: US
Publication date: 1881-06-14
Anticipated expiration: 1898-06-14

Description

(ModeL) v Q S. CLEMENS.

j Drag Saw.

No. 242,886. Patented June 14, 18811.

WITNESSES: 5 INVENTOR: @251; flJflw 05 W ATTORNEYS.

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UNITED STATES PATENT ()FFICE.

SAMUEL CLEMENS, OF ROGKPORT, ASSIGNOR TO HIMSELF AND H. L.

' ANDERSON, OF SUMMER HILL, ILLINOIS.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 242,886, dated June 14, 1881. I Application filedNovember 30, 1880. (ModeL) T 0 all whom it may concern:

Be it known that I, SAMUEL CLEMENS, of Rockport, in the county of Pike and State of Illinois, have invented a new and Improved Drag-Saw, of which the following is a description.

The object of this invention is to produce a drag-saw which will be simple in construction and effective in operation, and which may be easily operated by one person.

The invention consists in having the sawblade pivoted at one end of a lazy-tongs connected with the frame-work of the apparatus, and in having a hand-lever pivoted to the said frame-work and connected with the lazytongs by means of a pitman to operate the said lazy-tongs, as hereinafter described.

Figure 1 represents, in side elevation, a dragsaw made in accordance with myinvention in position upon a log, and Fig. 2 is a plan view of the same.

Similar letters of reference indicate ('ollesponding parts.

The frame-work of my improved apparatus consists of a supporting-beam, A, made preferably in two pieces, and held together by means of a metallic sleeve, to, a table, 13, to which the supporting-beam is attached, and an upright, 0, having a series of slots, 6, near the upper end, for the purpose hereinafter described. The supporting-beam A is made in two pieces to allow oflongitudiual adjustment, and is provided with a series of adjustingholes, through which pins are inserted to hold the frame against slippage when adjusted.

Pivoted at 0 upon the side ofthe supportingbeam-A is alazy-tongs, D, composed of metallic strips pivoted together at their ends and centers, as com mon, (see Fig. 1,) the said lazy-tongs being preferably of great er diameter at its center than at its ends. The lazy-tongs is supported near its free or saw end by means of a pitman, d, pivoted to the uprightG or hooked, into one of the slots 1) of the said upright, and the said lazyton gs is provided at this end with a saw-blade, e, of usual construction. The pitman (1 serves to guide the saw in its operation and control the extent of longitudinal movement, more or less throw being given to the saw by lengthening or shortening the pitman d, which may be done by adjusting the said 7 pitman in the different slots Z1 in the upright.

The lazy-tongs D and saw 0 are operated by a hand-lever,f, pivoted at g to the supporting-beam A, and connectedatits short end with the said lazy-tongs by means of a pitman, h, the said pitman being pivoted to the lever f at iand to the lazy-tongsD atj, as shown in Fig.1.

At the end of thesupporting-beam A which rests upon the log is pivoted a grapple'hook, is, to be driven into the log to hold the apparatus in position upon the log during operation. (See Fig. 2.)

1n the operation ofsawiug with my improved drag-saw the end of the supporting-beam A is placed upon the top of the log and the pivoted hook is is driven into thelog, this holding the apparatus securely against lateral movement. The operator, standing upon the platform 13, moves the hand-lever f back and forth, which imparts a rapid reciprocating motion to the saw through themedium of the lazy-tongs, and thereby cuts the log in a quick and effective manner.

The construct-ion of the parts as herein described forms a cheap, strong, and effective apparatus for sawing logs, 850., and one which may be easily operated by one person.

In consequence of the shape and arrangement of the lazy-tongs, as described, a slight backward and forward movement of the handleverf will impart to the lazy-tongs and con neeted saw a movement of greatly-increased rapidity and length, the ratio of which will be regulated as desired by the adjustment of the pitman dand supporting-beam A, as described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the frame A B G, of the lazy-tongs 1), pivoted at one end to the beam A and its free or saw end supported by the swinging arm d, the saw 0, pivoted to the lazy-tongs, and the lever-handlef, connected by a pitman, h, to the lazy-tongs, as and for the purpose set forth.

SAMUEL CLEMENS.

Witnesses:

WILLIAM H. PETERS, LUcIEN W. SHANE.