US440043A

US440043A - Log-turner

Info

Publication number: US440043A
Authority: US
Publication date: 1890-11-04
Anticipated expiration: 1907-11-04

Description

(No Model.) A 2 Sheets-Sheet 1.

H. 0. LANGE.

LOG TURNER.

No. 440,043. Patentd Nov. 4, 1890.

I [WVENTOR J (No Model.) I 2 Sheets-Sheet 2; H. 0. LANGE.

LOG TURNER.

No. 440,043. Patented Nov. 4, 1890.

J I-Zzrmaza 0Z4 4 iii? BMW/M UNITED STATES PATENT OFFICE,

HERMAN O. LANGE, OF MUSKEGON, MICHIGAN.

LOG-TURNER.

SPECIFICATION forming part of Letters Patent No. 440,043, dated November 4, 1890.

Application filed October 31, 18 89.

To all whom it may concern:

Be it known that I, HERMAN 0. LANGE, a citizen of the United States, residing at Mus kegon, in the county of Muskegon and State of Michigan, have invented a new and useful Improvement in Log-Turners, of which the following is a specification.

This invention relates to an improvement in log-turners in saw-mills, relating especially to that class of log-turners in which a spiked bar operated by machinery situated below the log deck is thrust up through the floor and is employed to turn the log on the carriage or to roll it along the log-deck toward the carriage.

The invention has for its object the pro duction of a tooth, and its connection to the bar of such form and design that the tooth shall be out of the way when the bar is sinking downward and yet willproject far enough from the face of the bar to allow it to catch against a log when the bar is rising and be thrown out into position to exert the full turning-power of the bar as that continues to rise after the teeth have come into engagement with the log.

In the drawings, Figure 1 represents the upper part of a tooth-bar of a log-turner, showing their teeth, method of attachment, and their operation, both when in contact and when out of contact with the log. Fig.2 rep resents a rear View of the tooth-bar, showing the two side pieces and tooth and pins.

The near side of the tooth-bar is removed, in order that the way in which the teeth are hung may be seen.

The tooth-bar is made of two parallel pieces A C, of metal or wood, separated from each other by a distance sufficient to allow the teeth B to swing freely between them upon pins P P, that pass through the parallel pieces and through the tooth and across the opening between the parallel pieces A and O.

The teeth B B are made much ,heavier at the inner end than at theouter end, the inner being the end which lies farthest back in the opening between the side pieces A and O of the tooth-bar, and the outer end being the sharp or tooth end proper, which extends out beyond the side pieces and is adapted to engage with the log.

Above each tooth are two pins S and T, ar-

Serial No. 328,834. (No model.)

ranged to act as stops to the motion of the tooth 13 upon the pin 1. The stops S limit the upward movement of the point of the tooth as that end rises in consequence of the greater weight of the other end, and the upward movement of the base of the tooth is limited by the stop T when the point is forced downward by the weight of the log or timber, against which the tooth presses when the bar is pushed upward in the operation of turning the log. hen the tooth-bar is in its normal condition, and the teeth are not in contact with any external object, the teeth hang with their pointed or lighter ends drawn back nearly, though not entirely, into the opening between the parallel side pieces. The stop S prevents the point of the tooth from coming entirely back into the opening between the side, leaving just enough of the tooth ext-ending out to catch under the log or against the rough bark of the side, and as soon as the weight of the log comes on the point of the tooth the tooth is rotated on the pin P, so that the point leaves the stop S, and the base of the tooth rises and comes to rest against the stop T, and in the rotation the point has swung outward from the side pieces and presents a long lifting-tooth to act against the log.

I am aware that movable teeth and teeth having their movement arrested by stops have been used; but I am not aware that such teeth have been employed where the tooth would assume a position such that its point would be thrown out of operative contact with the log or timber at all points where it was not actually engaged in lifting or pressing up against the timber. On the contrary, the movable teeth that have been heretofore usedsuch as are shown in the patent to WV. E. Hill, No. 148,365, and the patent to W. E. Hill, No. 2 5,496, show movable teeth which have the tooth portion or part which engages the log extended out as far as possible at all times when not forced back by some outside pressure.

I do not wish to confine myself to the particular triangular teeth shown in the drawings, as many forms of teeth may be used in which the inner end will be heavier than the out-er end; nor do I wish to confine myself to the use of atooth with two stops above it, as the tooth maybe so shaped that asingle stop pointed at one end and weighted at the other, and each tooth being so hung that its pointed end moves upward and backward nearly, but not entirelv, into the opening between the side I 5 pieces of the bar when not in contact with an external object, substantially as and for the purpose described.

HERMAN O. LANGE.

Witnesses:

R. A. PARKER, WM. F. NINNEMAN.