US285982A

US285982A - Drag-saw

Info

Publication number: US285982A
Authority: US
Publication date: 1883-10-02
Anticipated expiration: 1900-10-02

Description

' (No Model.)

0. FACHMON.

DRAG SAW.

Patented Oct. 2, 1883.

I/ISVENTOR ATTORNEYS.

WITNESSES aka/417% fiJaymz/p UNITED STATES OSW'ALD FAOHMON,

or Lnvi'isnr, OHIO.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 285,982, dated October 2, 1883.

' Application filed May 26,1883. (No model.)

To all whom it may concern.-

Be it known that I, Oswann FAOHMON, of Lindsey, in the county of San dusky and State of Ohio, have invented a new and Improved Drag-Saw, of which the following is a full, clear, and exact description.

My invention consists of a cam contrivance for-working the saw, a lever device for raising and lowering the saw, a power apparatus for rolling the logs to the ways to be sawed, a lever contrivance to feed the logs to the saw, and a guide attachment for the saw, all contrived for the application of power to the driving of the saw, so as to have steadier motion of the saw, and so as to avoid the backthrust that the drag of the saw causes, which is very injurious, especially when horses are used; and the log rolling and feeding and sawadjusting devices are contrived with especial arrangement for convenience in manipulating them by the attendant, all as hereinafter fully described.

Reference to be had to the accompanying dra 'ings, forming a part of this specification,

in. which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of my improved machine. Fig. 2 is a side elevation. Fig. 3 is a section on line 9 y, Fig. 1. Fig. =1- is a sec tion on line aof Fig. 1.

The saw a is rigidly attached to the shank 7), which is pivoted at c to the end of a sliding bar, d, arranged in horizontal slideways 1', set upon any suitable stands, f The slide d carries iriction-rollers lifeach side of an oblique cam-wheel, '1 fitted on a horizontal shaft, j, fitted in suitable bearings, 7;, and

having the power applied to it by the drivingwheel I and pinion m. This shaft also has a balance-wheel, a, by which the thrusts of the saw are alniost wholly taken up, and thus the driving-gear is relieved of them. The sawshank 7) works in a guide, 0, which slides in vertical ways of the posts p, and has a toothed rack, q, with which a segmental toothed whee], s, gears, which is mounted in bearings 2, near the top of the posts, and has an arm, a, which is connected by a rod, o, with another arm, '20, which projects from the i'ulcrumnvot :r of a lever, 1 pivoted in. the stand .2, for raising and lowering the saw, said lever being provided with a stationary ratchet, a, and a pawl, l), to hold it in any position. This lever y may be used for applying pressure to the saw when required, besides raising and lowering the saw, and said lever is also used for holding up the saw when thelogs c are to be shifted along under the saw.

For rolling the logs onto the log-truck d and the feeding-rollei c' on the logways f, I have a shaft, 9, with two ropes, 71 connected to it and hooking onto the logway at c" after passing around thelog, so that when the shaft 5 is revolved and the ropes wound upon it the log will. be rolled up the skids j onto the ways.

For turning the shaft 9 a chain-wheel, l", geared with a pulley, Z, on the driving-shaft by a chain, on, is fitted on said. shaft g, to be connected by a clutch, a, and lever 0 whenever it may be required to do so.

The log-feeding roller 0, arranged across the logway in bearings p at thesaw, has a lever, q, and ratchet s, by which the attendant, stand ing where he works the levers y and 0, can also work the -feed-lever without moving out of his place, which, it will be seen, makes the machine very handy and easy to manage.

To guide the saw and steady it against lat eral play or spring, I have contrived a guide for the back of the saw, consisting of the grooved. point t of a bar, a, pivoted to the posts 1) at 1/, so as to .rest on and rise and fall with the saw, and. thus guide it so as to work in a straight line. The posts that are set up in front of the logway for the guideways to the saw-guide 0, are stayed by posts in, set up at the back of posts p, for the support of the wheel .9, and also at the front by the stand ards 00, extending from the base up to the lugs 1 thereby making a strong structure to resist the shocks of the logs in case they are rolled too far over the log-rests by the ropes h, or

. when they may be pulled against the standards a" by the saw when the dogs 9/ may happen to work loose.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination, with a drag-saw, of a rigidly-attached shank, a sliding bar to which said shank is pivoted, horizontal slidewaysing a rigid arm, and a lever connected at its 10 for said bar, and an oblique cam-wheel 2, arfulcrum by an arm and rod with the wheelranged between friction-rollers on the slide arm, whereby the saw may be raised and lowand 011 a shaft rotated by a gear, substantially ered, as described. as shown and described. I

2. The combination, with the pivoted sa shank of a drag-saw, of a vertically-sliding Vvitnessesgguide having a toothed rack, a segmental W. H. H. VOLAND, toothed wheel gearing with said rack and hav- L. U. OVERMYER.

OSVVALD FACHMON.