US330484A

US330484A - Saw-mill carriage

Info

Publication number: US330484A
Authority: US
Publication date: 1885-11-17
Anticipated expiration: 1902-11-17

Description

(No Model) G. MLHINKLEY.

SAW MILL 0ARRIAGE'. I No. 330,484. Patented 0v. 17,1885.

I-NVEJV'TOR,

e Mginl'lez Attorneys.

N, PETERS. Pllclo'Lllllogmpher, Wnshinglon. 0.0

. of the carriage, as usual.

Niia STATES GEORGE HINKLEY, OF MILWAUKEE, WVISOONSIN.

SAW-MILL CARRIAGE.

SPECIFICATION forming part of Letters Patent No. 330,484, dated November 17, 1885.

Application filed January 26, 1885. Serial No. 154,037. (No model.)

To all whom it may concern:

Be it known that I, GEORGE M. HINKLEY, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Offsetting Devices for Saw-Mill Carriages, of which the following is a specification.

My invention relates to that class of sawmill carriages in which the log-frame and the operating mechanism carried thereby are shifted bodily in a line at right angles to the line of travel of the carriage preparatory to gigging back; and it consists in various features and details of construction hereinafter more fully set forth.

In the drawings, Figure 1 is a front elevation of a portion of a saw-mill carriage embodying my improvements, and Fig. 2 avertical transverse section of the same.

The letters A A indicate the timbers which go to make up the carriage-frame,which frame is adapted to receive and support the headblocks B with their movable knees O in the usual manner. The carriage with its appurtenances is supported on axles D by boxes or bearings E, secured to the carriage-timbers, as shown in Fig. 2. The axles D are carried by wheels F G, fixed thereon, the former grooved as shown and adapted to run on the correspondingly-shaped rails H, and the other adapted to run on the flat rail I, as is usual, the axles and wheels constituting atruck to support the body Each axle D is extended out beyond its wheel F, as shown in Fig. 2, and ,is provided with two collars, a b, between which is fixed a third collar or clutch, c. The axles D are an inch (more or less) longer between the hubs of the wheels F Gthan the width of the carriage or the distance between the outer ends of the boxes E,which support the carriage on the axles.

J indicates a bracket secured to the side of the carriage-frame, and'in which is journaled a shaft, K, extending parallel with the side of the carriage, as shown in Figs. 1 and 2. Im-

mediately over the axles D the shaft K has secured upon it bifurcated clutches L, the arms d d of which enter grooves or recesses e in the clutch-collar c, as shown more clearly in Fig. 1. The arms d d prevent the rotation of the clutch-collar 0 upon the axles D,while the collars a b prevent any movement thereof longitudinally upon the axles.

M indicates a hand-lever (one or more) keyed or otherwise firmly secured to the shaft K, and adapted to rock the latter in its bearings J, as willbereadily understood. Upon the side of the lever M is a pin or stud, f,which rides under a spring, 9, secured to the carriage and retains the lever in either position, as indicated in Fig. 2.

From the foregoing it will be seen that the arms d (1 form a fulcrum for blocks L, which blocks, being swung or rocked upon said fulcrum by the movement of lever M, and consequent rocking of shaft K, move the frame or carriage along the axles.

Preparatory to making a cut the lever is thrown forward to the position shown in dotted lines in Fig. 2, moving the frame or carriage upon the axles to the position shown in dotted lines in Fig. 2, and then, by means of any suitable or usual setting mechanism, the knees are set forward far enough to insure the required cut or the desired thickness of board or slab. The carriage is then moved forward past the saw N, and the required out being thus made the carriage is ready to be gigged back, according to the present custom. It will be seen that in thus gigging back, the carriage or the log or cant is liable to encounter the edge of the saw if the latter springs or wabbles even slightly, and thus the saw is in danger of being injured, and the cant or log is apt to be disfigured. Before gigging back, therefore, I throw lever M back again to the position shown in full lines in Fig. 1,which moves the entire carriage, its head-blocks, knees, and cant or log clear of the saw N, and so far therefrom that there can be no possible danger of encountering it on the return movement of the carriage. Thus the carriage is moved toward the saw before each cut and away from the saw after each cut by the quick and simple movement of a lever, and these operations are wholly independent of the customary setting up of the cant or log, which is performed now as before.

It will be seen that the shaft K can be hung below the axles D, instead of above, as shown, the result being simply a reversal of the movement of the hand-lever.

It will also be observed that the collars a b 0 can be placed upon the axles D, between the boxes E, in which case the shaft K, instead of being upon the outside of the carriage,will be within the same. I, however, prefer the arrangement shown and described, as it is more accessible than the other plans suggested.

The number of clutches L used will depend upon the number of trucks employed, butone for each axle D will be found advisable.

Having thus described my invention, what I claim is 1. In combination with axles D, boxes E, and wheels F G, said boxes being secured to the frame and mounted upon the axles, brackets. J, secured to said frame, shaft K, provided with forked arm L, fulcrumed in a block secured to axle D, and lever M, secured to the shaft, substantially as shown and described.

2. In combination with a saw-mill carriage and a guiding-track therefor, a collar secured to an axle of the carriage, and a lever j ournaled on the log frame of the carriage and fulcrumed in the collar, substantially as set forth, whereby it is adapted to shift the carriage upon the axles.

3. In combination with frame A and boxes E, secured to the frame, axles D, wheels F G, adapted to run on tracks H I, collars a 'b, rigidly secured upon the axle, collar a, loosely mounted between said collars a b, bracket J, secured to the frame A, shaft K, journaled in the bracket and provided with clutch-arms L and hand-lever M, the arms L engaging with the collar 0, stud f upon the lever, and spring 9 on the carriage, all arranged and operating as set forth.

GEORGE M. HINKLEY.