US224968A - Drag-sawing machine - Google Patents

Description

J. A. SWINEHART & L. JOU DA' Drag-Sawing Machine" No. 224,968; Patented Feb.,24, l8 80.-

yVlL'NESSi a IgENTOE: 1

N. PETERS, FQOTO-UTHQGRAFHER, WASHINGTON, p. C.

' ,UNITED STATES PATENT O FICE.

J AOOB A. SWINEHART AND LAFAYETTE .IOURDAN, OF RUSHVILLE, OHIO.

,DRAG-SAWING MACH'INE.

SPECIFICATION formingpart of Letters Patent N0. 224,968, dated February 24, 1880. l 1 Application filed August 9,1879.

. To all whom it may concern:

Be it known that we, JACOB A. SWINEHART and LAFAYETTE J OURDAN, of Rushville, in the county of Fairfield and State of Ohio, have in vented a new and Improved Sawing -Machine, of which the following is a specification.

Figure 1 is a side elevation of the device. Fig. 2 is a sectional elevation of the same on line 00 at, Fig. 1. Fig. 3 is a front elevation of the guide-block.

Similar letters of reference indicate corresponding parts.

The object of this invention is to provide a movable, simple, and most effective crosscut saw for sawinglogs, timber, 85c.

The invention consists of a beam or bench supported at the rear by legs and in front by a guide-block, which rests on the log to be cut. Two levers are pivoted in and extended downward through mortises in the beam, and are connected at their lower ends by a pitman, and to the forward one of these levers is pivoted the saw-shank, the saw extending forward and through a cut in the guide-block.

In the drawings, Ais the horizontal bearer, supported by legs B, and held up in front by the guide-block G, that is secured to the beam by two bolts, a, that extend through the block and have sharpened ends for holding onto the log.

0n the rear of the beam is a seat, D, for the operator. The lever E, that passes down through the beam, has a cross-pin, b, in its upper end for the operator to take hold of. Near its lower end two side stirrups, c, are secured for the feet of the operator, so that he may employ both hands and feet in the work. It is also provided with several holes. d, by which it may be, by means of a pin, adjusted to suit the operator.

One end of the lever F is pivoted in a mortise in the beam. and the lower end is clasped by the clevis f, in which is pivoted one end of the pitman G, whose other end is pivoted in the clevis g,that is secured to the lower end of the lever E.

From the front of the lever F, just above the clevis, extends a lug, h, to which is pivoted the saw-shank H, carrying the saw I. On the shank is a weight, K, to give more. effect to the saw, and a loop, 71, in which the cord and hook is may be engaged, with which to lift and hold up the saw when moving the device.

When a sawing-machine is provided with but one lever, to which the saw-shank is directly attached, a sidewise or vibrating motion is imparted to the saw when operating. By the use of the two levers this difficulty is avoided, and the saw will cut straight and without binding in the log.

By the use of the two levers and the method of attachment, in connection with the weight on the shank, the saw is made to out more smoothly and easily and straighter across the log than by the usual devices.

With this machine one man can in a given time do as much work as can two men with an ordinary crosscut-saw.

We are aware that guideblocks resembling ours are not new, nor saw-beams, nor levers for working saws. Hence we do not broadly claim them.

.Having thus described our invention, what weclaim as new, and desire to secure by Letters Patent, is

1. In combination with the saw-frame A, legs B, and guide-block O, provided with pins a, the adjustable lever E, provided with stirrups c and clevis g, thelever F, provided with clevisf and lug h, and pitman G, constructed and arranged substantially as and for the purpose described.

2. The combination of the adjustable lever E, provided with pin b, stirrup 0, holes d, and clevis g, with pitman G, lever F, provided with lug h and clevis f, sawshank H, provided with weight K and loop t", and saw I, substantially as. herein shown and described.

JACOB ALLEN SWINEHART. LAFAYETTE J OURDAN.

WVitnesses:

N. GUBLE, L. H. SNIDER.

Images