US339864A - Log-turner - Google Patents

Description

(No Model.)

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Nol 3 39864- LOG TURNER.

ted A JNESSES 'vga-,VI

Attorneys UNITED STATES PATENT OFFICE.

VILLIAM IV. OOYIIE, OF EAST SPRINGFIELD, OHIO.

LOG-TURNER.

SPECIFICATION forming part of Letters Patent No. 339.864, dated April 13, 1886.

Application filed October 9.3, 1885. Serial No. 180,740.

To all whom it may concern.-

Beit known that I, WILLIAM W. CoYLE, a citizen of the United States, residing at East Springfield, lin the county of Jefferson and State of Ohio, have invented a new and useful Improvement in Log-Turning Devices for` Saw-Mills, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in log-turning devices for saw-mills; and the novelty consists in the peculiar construction, conibination, and arrangement of the various parts, substantially as hereinafter set forth, and specifically pointed out in the claims.

The invention has for its object to provide improved means for turning the log to its proper position to be acted upon by the saw simultaneously with the return Inovement of the log-carriage from the saw; to provide means for readily throwing the actuating devices out of gear, and to combine simplicity and strength of construction with thorough effectiveness of operation.

In the accompanying drawings, Figure l is a perspective View of my improved log-turning device for saw-mills. Fig. 2 is a top plan view, and Fig. 3 is a vertical longitudinal section on the line x :c of Fig. 2.

Referring to the drawings, in which like letters of reference indicate corresponding parts in all the figures, A designates the track, and B the log-carriage, Inounted and adapted to move back and forth thereon to and from the saw.

rEhe track A consists of two parallel beams, A', connected at their ends by transverse or cross-beams A2, and between said longitudinal parallel beams A is arranged a longitudinal beam, A3, secured or bolted at its ends upon the cross-beams A2. This beam A3 is provided with a rack, a, at a suitable distance from the saw, and for a purpose presently described; and the longitudinal beam A nearest the saw is provided with a rail, a', over which the grooved wheels of the log-carriage travel to guide the said carriage and obviate the danger of its running off the track A.

rlhe carriage B comprises two parallel side beams, b, connected at their ends by crossbeams b', journal blocks or boxes b2, and bearing rollers orwheels b3 b, arranged at the ends (No model.)

or corners of the log-carriage frame, and having their trunnions journaled 1n the boxes b2. The wheels b3 are grooved and bear or run on the rail a', and that side of the log-carriage upon the upper surface of the outer longi-l tudinal beam of the track A.

The log-carriage B has two log-supporting cross-bars, C O, arranged at or near each end thereof, on which the log rests, and said logsupporting bars C are provided with vertical standards or pins G near the outer and lower side of the log-carriage, to prevent the log from becoming misplaced or rolling off the same.

D designates a cross-bar secured between and to the longitudinal beams of the log-carria-ge near the rear end thereof, and D designates a longitudinal bar secured at its front and rear ends in t-he cross-bar D and rear cross-beam, b', of the log-carriage, respectively, thus constituting a frame within the logoarriage for supporting the driving-shaft of the log-turning devices, as will presently fully appear.

E designates a shaft journaled at its ends in the beam D and the lower longitudinal beam, b, of the log-carriage. This shaft is provided between the beams D and b with a spur-gear wheel or pinion, E, that meshes with the rack a of the track A when the log-carriage is moved backward and forward from and to the saw, and thus serves to rotate the shaft E, which is fnrther provided with a collar, e, at the outer end thereof to bear against the inner face of the beam b, to prevent longitudinal play thereof. rIhe outer end of the shaftE projects through the lower outer beam, b, of the log-carriage, and is provided with a bevel gear-wheel, F, that Ineshes with and rotates a similar Wheel, G, which latter wheel is mounted on a shaft, H. This shaft H is arranged at right angles to the shaft E, and receives its motion therefrom through the bevel gear-wheels F G, as before described, and said shaft is supported in bearings h h', secured or bolted to the outer vertical face of the lower outer longitudinal beam,

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fit on said bearings h h", and thus rotatively Support the shaft therein.

When the carriage is being fed forward to the saw, it is necessary that the shafts E H be disengaged, in order to prevent the log from becoming misplaced, and to provide for such disengagement ofthe shafts an actuating-lever, L, is secured to that end of the shaft H that carries the bevel-wheel G. The bearing h is made larger than the reduced end of the shaft carrying the bevel-wheel G,and when this shaft is actuated by the lever L it is free to have a limited lateral play in its bearing h sufficient to permit the teeth of the bevel gear-wheels F G to become disengaged,thus throwing them out of gear. The lever L is pivoted to a supporting arm or bracket, L', secured or bolted to the log-carriage frame.

M designates a chain, rope, 85e., secured at one end to the drum I, and having a hook, N, at its opposite end. rlhe chain or rope is a1'- ranged across the log-carriage frame, and when the carriage is moved backward from the saw said chainy or rope is wound upon the drum I bythe rotation of said drum.

The hook N consists of two curved arms, a fn,pivotaliy connected together, the arm n having ashank to which the free outer end of the chain or rope M is connected, and the arm n has two prongs, o, that are adapted to engage and iit over the log, while the arm n fits beneath the same, as shown.

The operation of my invention is as follows: The carriage is-moved backward, so that the pinion E' of the driving-shaft E engages the rear end teeth of the rack a, and the log is properly secured thereon at the inner upper edge with the arms of the hook N engaging the same, the chain M being taut and the driving-shaft E unclutched or thrown out of engagement with the drum-shaft H. Ihe car- .gfm riage is now fed forward to the saw, and the log cut as previously determined and according to its adjustment, the pinions and gearwheels of the shaft E being rotated by engagement with the rack a. Before the return or backward movement is commenced the lever L is operated to throw the bevel-wheel G of the drum-shaft into engagement with the bevel-wheel F of the shaft E, and when said shaft E is rotated by its pinion engaging the rack a the drum-shaft is also rotated and the chain or rope wound upon the drum. When the rope is wound upon the drum, it draws upon the hook N, and, the two prongs o of the arm n thereof having been adjusted over the upper edges of the log, the greater amount of force or strain is thus exerted thereon, and it is pulled over, vresting on the supports C, `and the stops C serving to prevent further movement or displacement. The log is thus turned Vautomatically and simultaneously with the backward or return movement of the log-carriage without requiring the attendant to exert himself to turn the same, and by means of this device time is saved and the machine operated more rapidly to feedA a larger number oflogs, or the same log a greater number of times within a given period of time, it only being necessary to adj ust the log properly on the carriage before feeding it forward to the saw. Y o 'Y Any'means maybe employed to feed the carriage forward, or it may be moved by hand. Another form of clutch may be substituted for the device shown herein for throwing the shafts E H out of engagement, and other changes in vthe form and proportion of parts and details of construction may be made without departing from the principle o r sacrificing the advantages of my invention.

Having thus fully described my invention,v

what I claim as new, and desire to secure by Letters Patent, is-

- 1. In a log-turning device for saw-mills, the combination of a track, a log-carriage mounted thereon, a driving-shaft journaled in said carriage, a drum geared to the shaft, and flexible connections between the log and drum,

vsubstantially as described. l

2. The combination of a track, a carriage mounted thereon, a rack, a driving-shaft jonrnaled in the carriage and having a pinion meshing with and rotated by the rack, a drum geared to the driving-shaft,-and a flexible connection between the log and drum, and adapted to be wound upon the drum to turn the logl IOC simultaneously with the return ofthe carriage,

return movement of the carriage, substantially' as described. Y

4. The combination of a track, a carriage, a driving shaft journaled therein, a drum geared to the driving-shaft, a rope or Achain between the log and drum, and means, substantially as described, whereby the drivingshaft and drum are rotated to windv the rope or chain upon the drum to turn the log simultaneously with the return movement of the carriage from the saw, substantially as described.

5. ,'.Ihe combination of the track having a rack, an inclined log-carriage mounted thereon and carrying log-su pporting bars and stops, a shaft, E, journaled in the carriage and carrying gear-wheels E F, -the former of which meshes with the rack and rotates the shaft, a

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shaft, H, having a drum, I, and geared to the shaft E, a lever, L, for throwing the shafts E to the saw, a chain or rope, M, connected to In testimony that I claim the foregoing as the drum I, and 21 hook7 N, secured to the free my own I have hereto affixed my signature in end of said chain or rope and engaging the presence of two Witnesses. log, whereby, when the carriage is returned VILLIAM IV. COYLE. 5 from the sew, the oord or ropeis Wound upon Witnesses:

the drum and turns the log on the carriage, V. E. BAIRD,

substantially as described. I JOSEPH BURNS.

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