US54876A - Improvement in harvesters - Google Patents

Description

M. EASTERBQROOK. Jr.

Harvester.

Patented May 22,1866

Inventor:

Witnesges:

OFFICE.

PATE1T1 M. EASTERBROOK, JR, OF GENEVA, NEW YORK;

IMPROVEM ENT IN HA RVESTERS.

Specification forming part of Letters Patent No. 54,876, dated May 22, 1866.

To all whom it may concern:

Be it known that I, M. EASTERBROOK, Jr., of Geneva, in the county of Ontario and State of New York, have invented a new and useful Mode of Changing the Speed of Gutters of Harvesters; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a side elevation of the drivingwheel and frame of an ordinary harvester having my invention attached. Fig. 2 is a detached viewot' the adjusting-lever O, with the two intermediate pinions,p and p, attached.

Similar letters indicate corresponding parts in both figures.

The object of this invention is the same as that of my former application, filed August 29, 1865; and it consists in attaching two loose pinions to an adjusting-lever in such arelative relation to a double pinion fixed to the counter-shaft and the driving-wheel that the cutters may be thrown into or out of gear, or their motion increased or diminished, by said lever withoutreversing the motion of the crank-shaft. I

To enable others to make and use my invention, I will describe its construction and operation.

I use the ordinary spur-wheel B, attached to the ground-wheel D, also the same countershaft and bevel-gearing G and'crank-shaft F. Instead, however, of the spur-pinion of the counter-shaft gearing into the spur-wheel on the ground-wheel, as ordinarily done, it is made double and rigidly attached to the shaft 0, and the latter is so hung that the pinion just clears the gear on the driving-wheel. One set of teeth in this pinion forms'a considerably larger pinion than the other set,'as shown in the drawings.

The lever O is made L-shaped, as shown in Fig. 2, the short arm '1] terminating in a T,

and this latter carries the two intermediate pinions, p and p. The lever is hinged to the shaft S of the ground-wheels, and the pinions are so hung as always to remain in gear with the spur-wheel B. Therefore when the handlever O is thrown from one extreme to another the pinions simply travel around the spur-wheel until one orthe other, as may be desired, enters into gear with the double pinion.

It will be seen that with this arrangement the crank-shaft always revolves in the same direction, whether it is running at the high or at the low speed, and therefore the changes may be effected without incurring the great difliculty of forcing one gear into another, as when they are revolving in opposite directions, which is extremely impracticable.

It might be desirable to hang the two loose pinions 19 and p to a straight lever, one above the other, and near enough together to keep both in gear with its respective portion of the double pinion b, and hanging the lever to the counter-shaft c. In this case, when the cutters are not in motion all the gearing is at rest except that on the ground-wheel. Besides, the changes would probably be more easily effected, there being less material to move, and of course the construction of the parts would be much simpler.

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

.1. The combination of the hand-lever and two loose pinions, p and p, with the double pinion b and the spur-wheel B, arranged and operating substantially as and for the purposes set forth.

2. The two loose pinions p and 19, (whether they are adjusted with a hand-lever or other suitable device,) in combination with the double pinion b and the spur-wheel, substantially in the manner and for the purposes shown and described.

M. EASTERBROGK, JR.

Witnesses WM. S. LAUGHBOROUGH, P. T. TURNER.

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