USRE3093E - Improvement in harvesters - Google Patents

Description

UNITED STATES PATENT OEEICE.

\VILLIAMy H. STEVENSN, OF AUBURN, NEW YORK.

IMPROVEMENT IN" HARVEST-ERS Specication forming part of Letters PatcntNo. 75,070, dated March 3, 1868 reissue No. 3,093,

dated-August 18, 1868.

To all. whom it may concern:

Be it known that LWILLIAM H. STEVEN- soN, of Auburn, in the county of Cayuga and State of New York,have invented certain new and useful Improvements in Harvesting-Machines, of which the following is afull,vclear,

and exact description, reference being had to the accompanying drawings, which make part of this specification, and in which- Figure l reprcsents a plan or top view of so much of a harvester embracing my improvements as is necessary to illustrate my invention, one of the driving-wheels and the main gear-wheel being shown in section. Fig. 2 represen ts a vertical section through the machine in the line m m' of Fig. 1. Fig. 3 represents a view, in elevation, ofthe grain side of themachine, showing my improved mode of connecting the front end ot' the drag-bar with the main frame. Fig. 4 represents a View, in eleh vation, of the machineas seen from the front, with portions of the machine removed or broken away to show the other parts more clearly.

My invention relates to that class ofharvestersknown as two-wheeledhinge-joint machines, in which a laterally-projectin g tingerbeam is connected by hinged or jointed couplings witha main or dra-ft frame, mounted on two wheels, which. serve both to support the mainframe and to drive the gearing, the connection between the finger-beam and main frame being such as to allow either endotl the finger-beam to rise or fall independently of the other, or of the main frame,that the fingerbeam may conform freely to the undulations of the surface of the ground over which it is drawn.

he improvements herein claimed consist, first, in a novel method of constructing the gearing by combining with a large driving spur-wheel, mounted on the main axle, and dished on one side, a spur-pinion on a short counter-shaft parallel with the main axle, and a bevel-wheel ou the counter-shaft gcaringinto a corresponding pinion on a crank-shaft arranged underneath the main axle, transversely thereto, and with its pinion partially within the dished face of the main vdrivin g-gear, whereby I secure a strong, compact arrangement of the gearing; second, in a novel method of combining with a dished spur-wheel on the main axle a spur-pinion running loosely on the counter-shaft,on which it is moved endwisc by a shipping-lever, and provided with a clutch to throw. it into or out of gear, with a bevelwheel mounted on` the counter-shaft, and driving a pinion on the crank-shaft, substantiallyT as hereinafter set forth; third, in a novelmethod of combining theV shipliing-lever, which throws the mechanisminto or out ot' gear, with av bracket-frame guide or holder, constructed in one piece, and secured to the main frame by bolts passing through a slot or slotsin the plate, whereby the shipper is rendered adjustable 5 fourth, in a novel method ot combining with the drag-bar a lifting-lever, mounted on the main frame, and attached to the forward end of the drag-bar by a linked connection, and an arc-shaped bar connected with the drag-bar by a swivel-joint, and sliding endwise in a guide-box mounted on the main frame.

In the accompanying` drawings the main or draft frame A is shown as composed of three parallel longitudinal beams, art a', arranged inside the drivin g-wheels B, and connected at their ends by transverse beams b L. This frame rests upon two driving-wheels, B, mountedon an axle, C, with which they are connected by backing-ratchets, in the usual way.

A large spur-wheel, D, is keyed-on the main axle, between the beams a. This wheelhas its arms curved or dished on one side, for a purpose hereinafter described. It drives a spur-pinion, E, running loosely on a short counter-shaft, F, parallel to the axle C, and having its bearings in boxes d d, beneath the two beams ci a. The pinion has an annulargrooved collar, e, on one end, and a ratchetclutch, f, on the other, which clutching-ieee engages a corresponding one on the hub of a bevel-wheel, H, keyed fast to the counter-sha1" t F, and driving a corresponding pinion, I, on the front end ot' a crank-shaft, J, supported in bearings h h underneath the frame. The

cutters are driven by a crank or wrist pin, i, and pitman K, in the usual way.

By the above-described mode of constructing the gearing the main gear-wheel D and crankshaft J are brought close to the outer frame-timber a. The pinion I lies partly inside the plane ofthe gear-wheel. A short countershaft only is required, and the bevel-wheel H lies close to the main gear-wheel D. I thus not only secure a strong, compact arrangement of' the gearing, but, by increasing the distance between the heel ofthe cutter and the crankshaft, diminish the angle of inclination of the pitman to the cutter, and thus cause the latter to run easily. I make no claim to arranging the crank-shaft below the main frame.

The mechanism is thrown into or ont of' gear by a shippinglever, G, the forks of which elnbrace the collar e of the pinion E, which slides endwise on its shaft. The shipping-lever is pivoted at g in a bracket-frame, G1, on the outer 'frametimber a, provided with recesses to hold the lever either in or out of gear. A spring, g, retains the lever in either `ol the notches. The bracketframe G1 is all cast in one piece, and has a projecting ilan'ge, G2, which secures it to the main frame by means ot' bolts or set-screws passing through one or more slots in the liange. By this device the bracket-frame can be adjusted toward or from the bevel-wheel H. The mechanism is thrown into or out of gear by the driver moving the lever G from his seat on the main frame.

The iingerbeam is rigidly secured to a plate, M', hinged at its back to the drag-bar P, while its front end is adjusted in a standard, i', in the usual way, so as to vary the i11- clination ofthe guards relatively to the ground. y A vtransverse coupling-arm, R, hinged at both ends, connects the linger-beam and main frame, as usual in this class of machines. By

' these devices the cutting apparatus is allowed the motion common to double-hinge-joint machines. Y

Instead ofthe usual slotted bracketextending. below the main frame for the front end of the drag-bar to play in, I attach the swivel j t0 the lower end of a bar, S, curved in the arc of alarge circle, and sliding endwise through a guidebox, K, on the inner front corner of the main frame. A pin, u, passing through any one of a series of holes in the bar S, prevents the front end of the drag-bar from dropping below a given'point, but allows it to rise freely when required.

The guide-box K, it will be observed, pro-- which does not rise with the drag-bar, are obvious. l

The drag-bar is suspended by means of a link, Z, attached to a balance-lever, T, pivoted on the main frame, near its inner front corner, and extending transversely across the machine. A pawl, m, pivoted on the lever, engages with the teeth of a` sector-rack, V, and holds the drag-bar at the desired elevation. A handle, m. The finger-beam may be raised or lowered by a lifting-lever, V, on the rear of the main frame.

That I claim is- 1. rlhe combination, with a dished driving spur-wheel, D, of a' spur-piniom, E, bevelwheel, H, and bevel-pinion, I, which will admit ot' the arrangement of the crank-shaft J, substantially as and for the purposes specified.

2. The arrangement ot' the gear-wheels D E HI, the wheel E, running loosely on a shaft, F, and being provided with a clutching-face,f, and shipping-lever G, substantially as desired.

3. The adjustable shifter, holder, and guide G1, constructed in one piece, and attached to the main or draft frame by bolts passing through one or more slots in the shifting-plate G2, whereby the shifter-fork may be adjusted to the groove in the spur-pinion, substantially as described.

4. The combination ofthe adj usting-lever T,

linked connection L, and curved guide S, the latter working endwise in a guide-box, K, on the frame, with thev drag-bar P, substantially in the manner shown and described.

Witnesses: WM. H. STEVEN-SON.

Jos. J. PEYTON, BALTIs DE LONG;

releases the pawl when desired..

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