US472995A - Sawmill-carriage - Google Patents

Description

(NoModeL) J. P. HANSON. SAWMILL CARRIAGE.

No. 472,995; Patented Apr. 19, 1892 UNITED STAT S JAMES P. HANSON, OF OSHKOSI-I, VISCONSIN SAWMILL-CARRIAGE.

PATENT OFFICE.

SPECIFICATION forming part of Letters Patent No.472, 995,datedApri1 19, 1892.

Application filed March 16, 1891. Serial No. 335,204. (No model.)

To all whom it may concern.-

Be it known that I, JAMES P. HANSON, of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented a new and of the carriage-framewith myimproved mech-' anism, the platform being broken away to' show the construction. Fig. 2 is a side elevation of the carriage, a portion being shown in section to exhibit interior construction. Fig. 3 is an elevation of a portion of the operative mechanism. Fig. 4 is a transverse section on line 4: 4 of Fig. 1, looking toward the right.

The carriage A is usually covered with a platform B and is provided with head-blocks, on which the logs to be sawed aresupported. The axles C are journaled and have a slight endwise movement in boxes fixed to the carriage. These axles are provided at one end with grooved wheels D and at the other end with fiat-faced wheels E, the wheels all traveling on the parallel rails of the carriage-track F. The grooved or flanged Wheels D are adapted to keep the carriage on its track as it travels thereon. The axles C C are slightly longer than the width of the carriage to permit of the necessary lateral offsetting movement of the carriage thereon. The carriage is reciprocated alongside of the saw, which is located near one edge of the carriage, by any proper power-supply connected directly to the carriage. A frame G, independent of the carriage, is supported on the axles O O, the axles being 3' ournaled in boxes secured to the frame,

the frame-being held against lateral move-' ment on the axles by collars H, rigid to the axles, one on each side of each axle-box. A bar G is also supported on two of the axles C 0, being provided with journal-boxes, in

against anti-friction wheels R lars H, rigid on the axles, one on each side of each journal-box. A series of sets of togglejointed arms I I are pivoted at one end to the side of the carriage and at the other end to a portion of the frame G or bar G, and these sets of toggle-jointed arms are pivoted at their toggle-joints to a connecting rod or rods K, which rods are connected to a longitudinallyslotted frame or block L. The block L reciprocates on ways therefor in the frame G in the line of the rods K, connecting the joints ofthe several toggle-arms. The toggle-arms I I are of such length and are so connected with the carriage and theframe G and the bar G, respectively, that when the arms are forced into a straight line with each other in each set the carriage A is thereby pushed over toward the wheels E E, being in this position setup to the saw, and when the arms are forced out of lar to that in which an axle Cis journaled in the carriage and in the frame,is provided with segments of wheels N N, fixed to the shaft M, which segments are adapted to bear against and travel on the track through the extent of their partial rotation, and the shaft is provided with aeamO, fixed thereon, Whichcam projects into the slot P in the block L and bears at its front and rear edges, respectively, B, journaled in the block L;

The carriage and the offsetting mechanism are shown in Fig. 1 in the positions in which they are respectively when the carriage is running back. WVhen the motion is reversed and the carriage starts forward, (toward the left,) the segments of wheels N N will engage the track and travel thereon, rotating the shaft .M, and by the action of the cam 0 against the have completed their travel in this direction they will be merely carried along by the carriage to the end of its reciprocation in that direction, and when the carriage starts again in the reverse direction they will by their reverse travel on the track move the carriage away or offset itfrom the saw.

A rod S, attached to a segment N, serves as a handle whereby the segments may be rotated slightly just sufficient to hold them out of contact with the-track when it is desired to run the carriage forward or back without lateral movement.

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

1. The combination of a sawmill-carriage supported on axles on which it has lateral movement, toggle-jointed arms pivoted at one medially, a cam on a shaft journaled in the axle-supported frame, which cam acts on and reciprocates the block, and means for rotating the shaft limited] y, substantially as described.

2. The combination, with a sawmill-carriage supported on axles on which it is movable laterally, of laterally-disposed toggle jointed arms pivoted at their outer extremities, re-

spectively, to the carriage and to a frame or bar carried on the axles, having no lateral movement thereon, a block reciprocable longitudinally of the carriage in the frame carried on the axles and connected to the togglejointed arms medially, a cam ona shaft journaled in the axle-supported frame, and a segmental wheel on the-shaft arranged to bear upon and be rotated limitedly by the track on which the carriage travels, substantially as described.

3. The combination, with a sawmill-carriage supported on axles on which it is movable laterally, and a frame carried on the axles without lateral movement, of a shaft journaled in the frame, segmental wheels on the shaft adapted to engage the track on which the carriage reciprocates and rotate the shaft limitedly, a peripheral or radially-acting cam "on the shaft, and a block in the frame on the axles, which block is movable at right angles to the shaft by the action thereon of the cam and actuates devices for moving the carriage laterally on the axles, substantially as described.

In testimony whereof I affix my signature in presenceof two-witnesses.

' JAMES P. HANSON.

Witnesses:

J NO. WEDIN, JOHN W. 'DoUGLAss.

Images