US290078A - Saw-mill feed mechanism - Google Patents

Description

(No Model.)

- I I 2Sheets-Sheet1.

G. P. LIDY.

SAW MILL FEED MECHANISM- No. 290,07 Patented Dec. 11', 1883.

WITNESSES /\INVEN TOR:

ATTORNEYS,

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- 2 sheets sheet' 2.

(No Model.)

G. LIDY.

T d m w w w M HP M D B E F L L I M W A S I I INVBNTOR:

WITNESSES:

ATTORNEYS.

I 'ED YSTA'T'ES PATENT lemon.

. GEORGE F. LIDY, or wAYNnsBoRouoH,'rENNsYLvANIA.

SAW-MILL FEED MECHANISM.

SPECIFICATION forming part of Letters Patent No. 290,078, dated December 11, 1853.

Application filed October 18, 1883. (No model.)

To all whom iii 777,601] concern.-

Be it knownthatl, GEORGE FRANKLIN LIDY, of Waynesborough, in the county of ed to be adjusted diametrically across the face of a frictional disk for varying the speed and of the disk.

direction of the saw-mill carriage; and the invention consists of the novel construction hereinafter described and claimed.

Inthe drawings, Figure l is a plan view of part of. a saw-mill, showing my invention.

the roller whenever the friction between the disk and roller is not suitably gaged to overcome the weight of thecarriage. This happens because the weight of thecarriageholds the roller stationary, while the frictional contact of the disk grinds the periphery of the roller, causing a flat surface thereon. Such a construction is all the more objectionable, because the roller'is ordinarily made of paper or other yielding substance, because of its frictional quality, and the flatsurfaces are rapidly formed in such a roller, rendering it irregular and unsteady in its action.

To overcome this objection I locate the paper roller on the saw-arbor, in order that its continuous rotation with the arbor shall cause its periphery to be worn uniformly when the friction is not great enough to drive the disk; and thus prevent any part of the periphery from being flattened.

framework, B the saw, 0 the arbor carrying .the saw, and D the pulley for driving the arbor.

1 On the arbor is feathered the sleeve E, carry- .ingthe paper roller F, andthis sleeveis connect- ,ed by a finger, G, with a slotted arm, H, which is rigidly attached to a sh aft, I, having alever, J, for rocking the shaft and arm, to cause the sleeve to slide on the arbor. The lever J is connected to the shaft I by means of a squared opening, K, in its lower end, which is fitted over a squared block, L, on the end of the shaft, and a transverse bolt, M, passing through the lever and said block. With this construction the lever may be oscillated in two directions at right angles to each other. The lower end of the lever is fitted in a concentric groove, N in a swinging bearing, 0, pivoted at P to the frame A. This bearing carries one end of a shaft, Q, on the other end of which is rigidly secured the frictional disk B. This shaft Q is also provided with a bearing, S, to which is feathered a bevel-pinion, T, which is also feathered on the shaft Q, and geared with a large bevel-gear, U, mounted on the shaft V. The shaft V is provided'with a pinion, W, for driving the carriage Y. "With this construction the shaft Q is adapted to receive a slight longitudinal movement by oscillating lever J on pivot M, for throwing the disk into and out of contact with roller F.

As already implied, by rocking the shaft I with lever J, the roller F may be adjusted nearer to or farther from the center of disk R, to vary the speed of the carriage Y, and if shifted from one side of the center of the disk to the other side the direction of the motion of the in the swinging bearing and carrying the frictional disk, the pinion feathered on said shaft, and the carriage-driving shaft and the gear mounted thereon, substantially as shown and described.

3. The combination of the rock-shaft having a squared end or block, L, the lever havihg a squared opening and pivoted by a transverse bolt on said end or block, the swinging arm or IO bearing 0 having a concentric groove, N, in

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