US46460A - Improvement in sawing-machines - Google Patents

Description

JOSEPH FREY, OF BATTLE GREEK, MICHIGAN.

IMPROVEMENT IN SAWlNG-MACHINES.

Specification forming part of Letters Patent No. 46,460, dated February 21, 1865.

To all whom it may concern Be it known that I, JOSEPH FREY, of Battle Greek, in the county ot' Calhoun and State ot' Michigan, have invented a new and useful Improvement in Sawing-Machines; and I do hereby declare the following to be a full and exact description ot' the same, reference being had to' the accompanying drawings, which form a part ot' this speciiication, and represent a perspective view of the sawing-ma chine embodying my invention.

This invention consists in a sawing-machine, consisting, essentially, of a guide-frame of peculiar construction used in connection with a system of levers for raising and lowering the same, and with a tumbling-shaft,worn1 shaft, and adjusting-lever for throwing the feed roller in and out of gear, al1 as will be herein after described.

In order that others skilled in the art to which my invention appertains may be enabled to t'ullyunderstand and use the same, I will proceed to describe its construction and operation.

In the accompanying drawings, B B B2 represent frames which support the several operating parts, and B3 B3 are the log Ways in which the feedroller D is jourualed.

L is the saw, which has a reciprocatory movement imparted to it by a crank-wheel, H, through the medium of arms it lt, which are jointed to eachother and to a bar, I, which is pivoted to the uprighttrame B2 and oscillates as the arms h L are advanced and retracted. L2 is a frame, pivoted to the trame B2, and having attached to its loose end a guide, L3, for the driving-arm IL.

L' is the saw-guide pivotcd between suitable lugs on the guide L3, and G is a spiral spring situa-ted beneath the inner end of the guide L.

guide L down upon the saw, and, as the latter, together with the frame L2 and its appurtenances, falls by gravitating as the kerf The spring G acts to press the4 in the log deepens, the action of the spring G serves to constantly brace the saw and hold it to its work.

' J is a rope passing over a small pulley, b, and attached at its respective ends to an arm, L4, and lever J. By-the depression oi the lever the saw L is thrown up to permit the log to be moved under it by the roller D.

Upon the shaft of the crank-wheel H is a gear-wheel, F', which, meshing with the teeth of another gear-wheel H2, rotates a worm A.

Bis a cog-wheel secured upon the end ot' a rod, C; and F is a rod attached to the rod U and a lever, E, which lever has its fulcrum at H. A

C' is a rod connected to the roller D and to the rod C, the latter connection being made by a universal joint at c.

By raising the loose end ot' the lever E the operator can easily throw the cog B into gear with the worm A, which will produce the rotation of the rods C C and feed-roller D. The cog B, having been retained in gear with the worm A until the log has been moved to proper position to be submitted to the action of the saw, the operator permits the lever E to fall, so as to allow the cog B by gravitation to fall to a position out of connection with the worin A, wh en the rotation of the feedroller D ceases and themovement of the log is arrested.

Having thus described my invention, the following is what I claim as new and desire to secure by Letters Patent:

The arrangement, in a sawing-machine, of the saw L, guide L', saw-frame L2, spring-G, levers E L4 J, pitman h, crank-wheel H, worm A, rod j', pinion B, tumbling-shafts C U, and roller D, the whole constructed and operating substantially as herein set forth.

Josn'rn nnnr.

I/Vitnesses L. V. KELLOGG, SiMnoN BAKER.

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