US732690A - Rope or cable drive for threshing-machines. - Google Patents

Description

No. 732,690. PATENTED JUNE so, 1903.

'G.- E. WILSON.

ROPE 0R CABLE DRIVE FOR THRESHING MACHINES. APPLICATION nLnn mm 4, 1901.

| PETERS co. PNGYD-LITNIL wAsnmcvcm n. c.

UNITED STATES- Patented June 30, 1903.

PATENT OFFICE.

GEORGE E. -WILSON, OF STILLWATER, MINNESOTA.

SPECIFICATION forming part of Letters Patent No. 732,690, dated June 30, 1903.

Application filed June 4,1901- Serial No. 63,104. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE E. \VILSON, a citizen of the United States, residing at Stillwater, in the county of Washington and State of Minnesota, have invented certain new and useful Improvements in Rope or Cable Drives for Threshing-Machines, of which the follow ing is specification.

The chief object of the invention is to util- Io ize in combination the distinctive advantages of a belt-drive for the threshing-cylinder and of a main driving-cable actuated from a pulley independently supported. By this arrangement the tightening of the cable is maintained by said drive-pulley. The pulleys on the thresher by reason of the use of the cable need not be in exact alinement, but may be in a plurality of parallel planes and placed closer together than is possible with a fiat-belt connection, and the flat-belt drive,

transmitting power through the beater-shaft to the cylinder-shaft, will allow slip to the cylinder pulley whenever the cylinder is choked by excess of feed or by pieces of metal,

such as broken teeth, &c.

In the accompanying drawing, forming part of this'specification, the figure is a perspective side elevation of the thresher and the transmission-pulley of an engine provided with my invention.

In the drawing, A represents a threshingmachine of ordinary construction.

1 represents the beater-shaft, upon which is mounted a grooved pulley 2 and a flat-tread belt-pulley 3, said flat-tread pulley being connected by a belt 4 to the cylinder-pulley 5. 6 represents a grooved pulley mounted upon the counter-shaft which operates the cleaning mechanism. 7 represents a doublegrooved pulley mounted upon the shaft of ley 7, passing through the inner groove there-.

of, thence around the lower stacker-pulley 8, thence over the idler-pulley 12, under the pulley 7, and over the guide-pulley 13 to the driving-pulley of the engine.

As will be noted, I provide grooved pulleys for the main actuating-shafts of the threshing-machine except the cylinder-shaft and connect these grooved pulleys by an endless cable with a grooved drive-wheel on the engine. No belt-tightening devices are used in connection with the rope-drive, as the same is kept tightened by the position of the grooved engine-pulley with reference to the pulleys of the machine. The cylinder-shaft, as shown, is connected by a flat-belt drive with one of the grooved pulleys. With this belt-drive belt-tightening devices are used, as shown. The result of this arrangement, is that the operation of the machine will not be affected by the clogging of the cylinder, since the cylinder-belt will slip, whereas the cable running around'the grooved wheels of the other shafts and passing over the grooved enginepulley will not slip; also that uniform power is applied to the different grooved pulleys of the machine, since thecable is kept tight by V a pull exerted upon it from a pulley supported independently of the machine instead of adjacent to some pulley, as would be the case in a belt-tightener, and, further, that all of the grooved pulleys can be arranged in a series of parallel planes. By means of the secondary flat-belt drive for the cylinder it will be'evident that a greater or lesser power may be applied to the cylinder than applied to the main driving-pulleys through the main drive.

By driving directly from the engine to a series of points on the threshing-machine I overcome many objections incident to driving to some one point, notably from the engine to the cylinder, which necessitates drawing upon it as a source of supply for all the power necessary to operate various other p'arts of the machine.

I claim- 1. The combination with a'threshing-machine and the drive-wheel of an engine, of a.

series of grooved pulleys carried by actuating-shafts of the machine, an endless cable running over said grooved pulleys and said drive-pulley, a fiat-tread pulley carried by one of the grooved-pulley shafts, a flat-tread pulley carried by the cylinder-shaft of the machine, and a fiat belt connecting said fiattread pulleys.

2. The combination with a threshing-ma chine, of a grooved drive -Wheel supported independently of the machine, a series of grooved actuating-pulleys carried by the machine and arranged in a series of parallel planes, an endless cable running over said grooved machine-pulleys and grooved drivewheel, a fiat-tread belt-pulley carried by one of the grooved machine-pulley shafts, a fiattread belt-pulley carried by the cylinder-shaft of the machine, and a flat belt connecting said belt-pulleys whereby movement of the drive wheel away from the machine will tighten the cable upon the grooved pulleys of the machine without afiecting the belt-drive of the cylinder-shaft.

GEORGE E. 'WILSON.

Witnesses:

H. S. JOHNSON, EMILY EASTMAN.

Images