US43561A - Improvement in sawing-machines - Google Patents

Description

v is a side elevation showing the driving-drum Nrrnn STATES E. BERREY, OF AUBURN, INDIANA.

Specification forming part of Letters Patent No. 43,54, dated July 19, 1864.

To all whom t may concern: l

Be it known that I, E. BERREY, of Auburn, in the county ot' De Kalb and State of Indiana, have invented a new and useful Improvement in Sawing-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof', which will enable any person skilled in the art to make and use the same, reference being had to the accompanying drawings, making a part ot' this specification, in which- Figure 1 is a side sectional elevation of my improvement. Fig. 2 is a plan view. Fig. 3

shat't and its support.

Thisinvention relates to that class ofsawing machines which are employed for cutting up firewood, logs, &c. In some machines ofthis class itis common to have the sliding crosshead, to which the saw-pitman is attached, arranged between the driving-wheel and the saw. l1`his plan is attended with the disadvantage of having a very short saw-pitman, which cannot be elongated without extending the length ofthe whole machin-e,thusincreasing the expense of construction, besides rendering the machine heavy and cuinsy. Another disadvantage is that such short sawpitman necessarily occupies an angular position, unless the machine is well elevated above the wood that is to be cut; hence the pitman will require increased power to drive it, a-nd the advantage ofits weight, to press the saw upon the log, will to a certain extent be lost.

,My improvement consists in the arrangement ofthe driving-wheel and driving-pitman between the cross-headand the rising and falling gate. By means of this improvement I am enabled to use a saw-pitman of increased length without elongating the machine. The saw-pitman extends across the entire length ofthe machine, and consequently the ang-le at which it operates will be slight. It will run nearly on a horizontal line, so that its whole weight will be thrown upon the saw, and i-t will therefore work in the most e'ective manner at the smallest expense of power.

A is the frame ofthe machine; B, the driving-shaft, C, the driving-drinn, and D the driving fly-wheel, all constructed in theordinary well-known manner. Pivoted to the ily- Wheel D at a is the driving-pitman E, which,

at b, is also pivoted to the sliding cross-head F, which thus receives motion from wheel D. The cross-head F consists oi' a sliding plate, grooved at its upper and lower edge to receive the guide-platesG G, between which it slides, the said guide-plates G G being attached to the frame A, as shown in Fig. 1. At the opposite or front end of the machine, rising from the frame, are two posts, II H, upon theinner sides oi' each ot' which is a feather or projecting guide, I, between which there is a rising and falling gate or slide, J, having its edges grooved to tit the guides I. The gate J has an opening or slot eut in it at K, and at the upper and lower ends ot' the slot there is a roller, L. The space between the two rollers is sutlicient to receive the saw-pitmau M. This pitman is intended to be attached to the saw at its front end, while its rear end is pivotcd at c to the cross-head F, as lshown in Figs. l and 2. Passing through the side of one of the posts H is an adjusting-pin, N, which enters into hoies in one edge of the gate J. By having a series of holes in the post H and in the edge or" the gate J, the latter may be set and adjusted at any desired point. The front ot' the gate J is also provided with a handle, O, by which it may be conveniently raised or lowered.

I do not claim the invention ot' the sliding gate with the pitman passing through it. Neither do I claim, broadly, the use of an elongated saw-pitman extending past the drivingwheel; but,

Having thus described my invention, I claim as new and desire to secure by LettersPatent- The combination of the fly-wheel D, wrist a, driving-pitman E, cross-head F, saw-pitman M, gate J, and rollers L L, all constructed, arranged, and operating in the manner and for the purposes herein specified.

E. BERREY.

Witnesses:

GEORGE S. McCoRn, LYMAN Cnrnsnv.

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