US720096A - Grain-harvester. - Google Patents

Description

PATENTED FEB. 10, 1903.

J. F. APPLEBY. GRAIN HARVESTER.

APPLICATION FILED MAY 17, 1902.

I0 IODBL.

UNITED STATES PAT NT OFFICE.

JOHN F. APPLEBY, OF CHICAGO, ILLINOIS, ASSIGNOR TO DEERING IIARVESTER COMPANY, OF CHICAGO, ILLINOIS.

GRAIN-HVARVEOSTER.

SPECIFICATION forming part of Letters Patent No. 720,096, dated February 10, 1903.

Application filed May 17,1902. Serial No. 107,873. (No model.)

larly to that class of grain-harvesters known as headers, its object being to provide more suitable means than heretofore in use for supporting and adjusting the grain-ele-' vator at any desired height, and particularly to facilitate the raising and lowering of the grain-elevator in order to avoid collision with the barge that receives the grain when'it is driven alongside the elevator.

spring to in part counteract the weight of the elevator. V

In the accompanying drawings, Figure 1 is a perspective view of a portion of an ordinary Appleby header provided with my improvement; and Fig. 2 is a detailof my improvement, showing how I prefer to support it.

A represents the main frame of the header; B, the axle, which may be sustained in the usual supporting-wheels, the position of the main wheel 1) shown only by dotted lines.

0 is the thrust-tongue, connected at its front end to the axle and other parts of the frame and may be considered as supported on a caster-wheel at its rear end in the usual manner; D, the grain receiving" platform, supported. in front of the wheels also in the usual way and provided with suitable levers for adjusting the height of same; and d, the platform-conveyor, which delivers the grain to the endless elevator G and H.

E is the cutting apparatus, arranged along the front side of the grain-receiving platform, involving nothing new in its design or means of operation, andhence need not be described.

F represents the vertically-adjustable elevator-frame, inclining upwardly from the de livery end of the platform conveyer and pivotally attached to the frame of the machine. In the frame F are journaled the rollers g g and h h, over which pass the conveyor-canvases G and H, g and h being broken away with upper portion of frame in Fig. 1.

-justs the height of the elevator.

This object. is attained by the use of a counterpoising I is a tackle secured to the upper end of I the elevator F. The rope i of the tackle I passes over the blocks 2", i and i thence rearward to the customary operators stand. By means of this tackle the attendant ad- Secured rigidly to a suitable portion of the platformframe, forward of the axle B and extending upwardly, is the post J, preferably of angleiron. In addition to supporting the block i the post J also forms a support for the bearing'k, in which journals the wrist of the bellcrank K- To the upwardly-extending arm of. the bell-crank K is linked the elevator F through the rod L, the rod L being attached to F near its upper end by means of an eyebolt, thus forming a flexible joint.

'm is a'brace-rod secured to the post J at its upper end and extending downwardly to a suitable point on the grain side of the main frame. -Near the foot of thepost J is secured an outreaching arm n, or it may be a bent extension of J. Interposed between the horizontal arm of the bell-crank K and the outreaching arm n isthe spring M, in the ends of which are screwed the fasteners or nuts m m adapted to be received by the spring M. The nuts m and m are tapped for rods or bolts. The nut m receives the rodn, which connects it with the horizontal arm of the bell-crank K, and the nut m receives the bolt n which connects the lower end of the spring with the outreaching arm n. The bolt 02 is provided witha long threaded portion at its upper end, which thus permits of an adjustment of the tension of the spring by turning the said bolt n By the means described, whereby most of the weight of the elevator is supported by the spring M through the instrumentality of the bell-crank K and the rod L, it is seen that my improvement operates to facilitate the manipulation of thehinged elevator F.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a harvesting-machine, a grain-receiving platform adjustable in height, a grain-elevator pivotally secured thereto at its lower end, means for adjusting the height of the said grain-receiving platform, a counter balancing-spring adapted to support and arranged to raise and lower said elevator, a

counter-poise the free end of the said grainelevator, and means, independentof the said means for adjusting the height of the said grain-receiving platform, for raising and lowering the said grain-elevator at will, substantially as described.

2. In a harvesting-machine, the combination of a main frame, a vertically-adjustable elevator F, pivotally secured to the main frame, a post J secured to the main frame and extending upwardly, a tackle suitably bell-crank K pivotally connected to said post J, with connections between the vertical arm of said bell-crank K and the elevator F, and a spring connection between the horizontal arm of the bell-crank K and the frame A of the machine, all combined substantially as described. JOHN F. APPLEBY. In presence of EDWARD R. BARRETT, J. O. WARNER. V

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