US720635A - Grain-harvester. - Google Patents

Description

No. 720,635. PATENTED FEB. 17, 1903;

'J. F. STEWARD.

GRAIN HARVESTER.

APPLICATION FILED JUNE 4! 1902. N0 MODEL. H 2 SHEBTS BHEET 1.

No. 720,635. PATENTED FEB. 17,1903.

J. P. SIEWARD.

GRAIN HARVESTER. APPLICATION FILED JUNE 4, 1902.

N0 MODEL. Y 2 SKEETS-SH BBT 2.

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L J I E 2 i I wk Y J HIEIEHI illlllll iijim UNITED STATES PATENT OFFICE.

JOHN F. STEWARD, OF CHICAGO, ILLINOIS.

GRAlN-HARVESTER.

SPECIFICATION forming part of Letters Patent N 0. 720,635, dated February 17, 1903. Application filed June 4, 1902. Serial No. 110,136. (No model.)

To all whom it may concern:

Beitknown that I,J 0HN F. STEWARD, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Grain-Harvesters, of which the following is a specification.

My invention relates to the motive power of harvesters, and especially applies to that class known as headers or push machines. In encountering excessive resistance due to heavy grain or some obstacle in the path of the wheels in the use of such machines the direction of poll from the draftanimals will cause the rear end of the machine to rise from the ground, while the main wheels will sink into the ground. My improvement will overcome this difficulty.

Referring to the accompanying drawings, which form a part of this specification, Figure 1 is a plan view of an ordinary header fitted with a binder attachment and showing an engine connected in a manner to adapt it to drive the machine, the operators platform over the caster-Wheel, with numerous other details, being omitted. Fig. 2 is a grain side elevation of the rear end of the machine, showing levers for operating the various parts and means for driving the supporting casterwheel when turning the corners of the field; and Figs. 3 and 4 are fragmentary views showing details of clutch, the clutch-operating device, and reversing mechanism.

In Fig. 1, A represents the main axle, which is sustained in the two main supportingwheels A and A Forward ot' the axle A and supported thereby isthe grain-receivingwith the caster-wheel is secured a bevel-gear Y M. The caster-wheel is turned in its swivelbearing by means of the laterally-extending lever F rigidly secured to the prolongation of the pivot-formingstandard F".

forms a bearing for the shaft G.

.the present invention is concerned, to be merely an engine of any kind. On the engine E are the sprocket-wheels e and e, keyed to the crank-shaft.

Journaled in pieces secured to the main frame of the machine in the rear of the drivewheel is the cross-shaft G. On this crossshaft at the stubble end is keyed a bevelgear g, which meshes with the bevel-pinion g, and the latter through the shaft 9 com- It is sufficient here municates motion to the operative parts of the machine except, in this instance, from preference merely, the reel R, which is driven by a sprocket -chain 1", passing around a sprocket-wheel ron the reel-shaft and the sprocket-wheel?" on the main drive-wheel A.

On the shaft G sleeves the usual clutch 9 a sprocket-wheel g and pinion g all as one piece. Also on the shaft G is feathered a clutch g adapted to engage the clutch 9 The clutch g is held in engagement with the clutchg by the spring g In a rigid bracket H and directly beneath the pinion g? is secureda stud, on which journals an intermediate pinion G, meshing with the said pinion g. The bracket H supports a split box, in which journals the one piece clutch, sprocket, -and pinion, which piece in turn In the rear end of the bracket H is secured a stud h, on which is pivoted a horizontally-extending lever H. On a stud h in the forward end of this lever journals'the pinion H adapted to be swung into mesh with either the pinion g or G at will. On the same stud h, concentric and integral with the pinion H isthe sprocket-wheel H Passing over the sprocketwheel H and the sprocket-wheel e on the crank-shaft of the engine E is the sprocketchain h By means of the bell-crank K, the connecting-link 7c, and the rod 7a, which extends to and connects with the latch-lever K, the required control of the driving-gearing is effected, and thus either forward or backward motion of the machine may be accomplished or a starting and stopping of the machine produced.

The operative parts of the machine (the reel excepted) are thrown into action by the clutch g, which is feathered on the shaft G, being brought into engagement with the clutch 9 which with the sprocket-wheel g and pinion g sleeve as one piece on the said shaft G. The movement of the said clutch g is effected by the lever I, pivoted in the casting 2 which is secured to a suitable portion of the main frame, the said lever 1 engaging the said clutch by means of a groove therein, as shown in Figs. 1 and 3. The free end of the lever I is actuated transversely by means of the link 1', the bell-crank I, and the rod 7?, leading to and connecting with a suitable leverl on the operators platform. The

spring g sleeved also on the shaft G, holds the clutching mechanism in engagement and prevents disengagement of same until the spring is positively compressed by the operator through the means above described.

Attached at the rear end of the thrusttongue A is the bracket L, which receives a stud Z, Fig. 2, bearing the pinion Z and the sprocket-wheel Z as one piece and holding them in such a position that when the casterwheel is turned until its plane is almost transverse with the line of advance of the machine, as shown by dotted lines in Fig. 1, the large bevel-gear M on the side of the casterwheel F will mesh with the pinion Z. Thrown over the sprocket-wheel Z and the sprocketwheel 6 on the crank-shaft of the engine E is the sprocket-chain s.

T is the water-tank used in connection with the engine E, and tis the pipe leading from said tank to the water-jacket of said engine. The gasolene-storage tank may be placed inside the tube forming the thrust-tongue similar to the arrangement shown in the patent referred to.

The operation of my machine is as follows: When the engine is once started, continuous motion will be imparted to the spur-pinion H and the bevel-pinion Z through intervening sprocketchains and sprocket wheels, as shown. If the pinion H on the rocking arm H is moved into contact with the gear G, Fig. 4, by means of the lever described, then, assuming that the crank of the engine is moving forward in the upper half of its revolution, a forward motion will be given to the main wheel; but if the pinion is moved into engagement with the pinion then the motion of the main wheel will be reversed. \Vhen midway between the two positions described, no engagement is obtained and the machine is inoperative. The clutch g when engaged with the clutch will communicate motion to the cross-shaft G, and thus to the entire machine, when the pinion g is engaged indirectly with the pinion I-I through the pinion G.

The bevel-gear M may be attached to the caster-wheel F by any usual means. It is sufficient in most soils, however, to depend on the yielding qualities of the soft ground to relieve the machine of the shock incident to starting the wheelF suddenly; but in lieu of a rigid fastening any of the well-known yielding connections may be interposed between the said bevel-gear and Wheel F to reduce the shock of starting.

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

1. In a harvesting-machine, a main frame supported on one or more motor-wheels, a motor-engine mounted on the said frame and geared to said motor-wheels, aguiding-wheel journaled in a suitable bracket, said bracket adapted to oscillate on a vertical axis and thus change the plane of movement of the said guiding-wheel,and means whereby the change of plane of the said guiding-wheel on said vertical axis causes the said guiding-wheel to receive rotation from a moving part actuated by said engine, substantially as described.

2. In a traction-engine, motor-wheels, an engine geared to said motor-Wheels, a guiding-wheel, said guiding-wheeljournaled in a bracket movable on a vertical axis and provided with gearing by which it can be rotated, a tiller, by means of which the plane of said wheel may be changed at will, said tiller also serving to produce engagement of the gearing of the said guiding-wheel with a part moved by said engine, substantially as described.

3. In a harvesting-machine, motor-wheels, a main frame supported thereon, an engine mounted on said frame and geared to said motor-wheels,a guiding-wheel bracket,a guiding-wheel mounted thereon and normally out of engagement with the moving part of the machine, a vertical axis extending upwardly from said bracket, and means for throwing said guiding-wheel into engagement with a constantly-moving part of the machine when the said Wheel-bracket and Wheel are turned upon the said vertical axis to a position transverse to the line of advance, as when the corner of the field is reached, whereby the said machine may be turned upon the main supporting-wheel as an axis, substantially as described.

4. In a harvesting-machine, traction-wheels, a main frame suitably mounted thereon, a tiller-wheel supporting the rear end of said main frame, an engine supported upon the main frame, means for connecting the engine to the said tractionwheels and to the operative parts of the harvesting-machine, and means for also connecting the said engine to the tiller-wheel, at will, said tiller-Wheel being normally out of engagement with said means, all combined substantially as described.

JOHN F. STEWARD.

In presence of J. O. WARMS, EDWARD R. BARRETT.

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