US153346A - Improvement in log-turners for saw-mills - Google Patents

Description

, UNITED STATES PATENT OFFICE SIMON KELLER, OF YORK, PENNSYLVANIA.

IMPROVEMENT IN LOG-TURNERS FOR SAW-MILLS.

Specification forming part of Letters Patent No. 153,346, dated July 2l, 1874; application filed June 1:2, 1874.

- To all Iwhom t may concern:

Be it known that I, SIMoN KELLER, of York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Saw-Mills 5 and I do hereby declare that the following` is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters .of reference marked thereon, which form a part of this specification.

The nature of my invention consists in the construction and arrangement of a device for canting logs upon the movable carriage of a saw-mill, as will be hereinafter more fully set forth.

In the accompanying drawing, Figure l is a plan view of so much of a saw-mill as will illustrate my invention. Figure 2 is a longitudinal vertical section of the same through the line .r Fig. 1, and Fig. 3 is a transverse vertical section through the line y y, Fig. l.

A represents the frame of a saw-mill, with guides a a, upon which moves the log-carriage B, and A guidestandard for bar G. In the lower part of the frame A, at a suitable point, is a horizontal cross-shaft, b, provided on one end with a crank, O, for turning the same, and upon said shaft are secured two pulleys, d d. Above the shaft b is another shaft, b', provided with two pulleys, d d. One end of the shaft b has a stationary bearing in the frame A, while the other end has its bearing in a lever, D, pivoted at one end to the frame and the other end placed in the slotted lower end of a bar, Dl, which passes up throughI the saw-table E on top of the frame A. The bar D1 is notched at a suitable point, so that when raised up it can be held by a latch, D2, which is pivoted on top of the saw-table and may be thrown into said notch. When the bar D1 and lever D are raised the pulleys d are elevated above the pulleys d; but when the bar and lever are held down the pulleys are thrown in contact with each other, so that by turning the crank C the shaft b will also be revolved. To Jthe shaft b is attached a cord, f, which passes up and over a pulley, E, in the top part of the frame A, then down and under a pulley, h, in the lower end of an upright sliding bar, G, and the other end of' the rope is fastened to the top part of the frame. The bar G passes up through a mortise in the saw-table E and is upon the side nearest the carriage B provided with a series of curved sharp-pointed teeth, it'. While the log is being sawed the bar G should be sunk below the top or" the saw-table, and when it is desired to cant the log the pulleys d d are rst thrown in gear, as above described, and then the crank C, whereby the cord f is wound up on the shaft b, which raises the bar G so that the hooks or teeth c' thereon will catch on the log and turn the same over. The bar G is held up against the log by means of slide m., under the saw-table E, provided with a friction-roller, a, at one end bearing against the back of the bar, and said slide held against the bar by means of a weight, H, attached to a cord, p, said cord passing around a pulley, s, in the slide and attached to the frame, as shown in Fig. 3.

I am aware that a device for turning logs, operated by a cord and friction-rollers, has been before used, and I do not, therefore, broadly claim such device 5 but Having thus fully described my invention, what I claim as new, and'desire to secure by VLetters Patent, is-

The guide-frame A', pulley It, and sliding toothed bar G, with teeth c', in combination with cord f, pulleys c, d d', bar D, lever D1, slide m, roller a, pulley s, cord p, and weight H, all constructed and arranged as and for the purpose specified.

In testimony that I claim the foregoing as my own, I affix my signature in presence ot two witnesses.

SIMON KELLER.

Witnesses H. C. SCOTT, G. J. FEERiss.

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