US150555A - Improvement in sawing-machines - Google Patents

Description

I 2 Sheets--Sheet 2. M w vYK FF.

A. M. FRANKLIN. s. w. BRoY &1.

`sawing-Machines.

` `Patented Ma)I 5,1874.

WITJVESS ES.

UNITED SrlrrnsI PATENT Dumon.

AMASA M. FRANKLIN, SAMUEL W. BROY, AND JAMES M. WYOKOFF, OF WOOL, ILLINOIS.l

Specification forming'part of Letters Patent No. 150,555, dated May 5, 1874; application filed Apri14, 1874.

To all whom it may concern:

Be it known that we, AMAsA M. FRANKLIN, SAML. W. BROY and JAMins M. WYoKoFF, of Wool, in the county of Pope and in the State of Illinois, have invented certain new and useful Improvements in Sawing-Machine; and do hereby declare that the .following is a full, clear, and exact description thereof, reference bein g had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

rIhe nature of our invention consists in the construction and arrangement of a sawingmachine, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation, referring to the annexed drawings, in which- Figure l is a side elevation, and Fig. 2 a longitpudinal vertical section, of our machine.

A represents the frame of our machine, constructed in any suitable manner, and at one end of the frame is a seat, B, upon which the operator is to be seated while operating` the machine. In the top of the frameAis mounted a drum or cylinder, G, from the lower side of which projects an arm, D, and in the lower end thereof' is pivoted the end of the saw E. Frein the rear side of the cylinder O projects two arms, G, which are connected at their outer ends by'means of a handle G. On the the top of the drum or cylinder C are secured two chains, aco, one at or near each end, which chains pass down upon opposite sides of the drum, and connect directly, or by intermediate rods b and links d, with two treadles, J J.

These treadles are pivoted at the front end of the frame A, and extend backward under t-he seat B.

With this machine one man can saw as much as two men without it, and in many cases more, fromthe fact that it vtakes seventeen poundsto pull a cross-cut saw through a coinmon log, and with this machine the weight is principally on the saw, or thrown on the lsaw by the various levers. The two l principal .or one hundred and fifty.

levers are the treadles J and the arms G. If the operator puts twenty-five pounds on the end of the treadle, which is a very light pressure, he will give seventyive pounds on the saw, and on both treadles twice seventy-tive The arms are worked on the same principle, but owing to the fulcrum being; placed closer to the power it does not gain so much. The third and last lever is the chains a running,` up on an incline 011 the same principle as a movable pulley. With all these combined, the operator can at a low estimate easily produce two hundred pounds on the saw, when it only takes seventeen pounds to run it, and therefore cut the log` easily and quickly, and with but little. cxertion on his part.

With this machine one man can cut anysize log, or any kind of timber, and if the timber is under water he can cutit without getting; in the water.

One man can convey the machine to any place in the woods, set it down by the side ot' the log, place the saw upon the log, and go to work.

The operator can use his-feet or his hands alone (while resting,` the othcr,) or usc both at the same time.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

rlhe combination of the treadles J J, links d, intermediate rods b, and chains a a., with the cylinder O, provided with the arms G G, handle G', and pitman D, all constructed as described, and arranged in a frame, A, havin g' a seat, B, at one end, substantially as and for the purposes herein set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 4th day of March, 1874.

A. M. FRANKLIN. S. W. BROY. JAS. M. WYGKOFF.

Witnesses:

SAM. BnADsnAw, 4 J oHN O. WILLIAMSON.

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