USRE3389E - Improvement in harvesters - Google Patents

Description

- this specification,

CHARLES IMPROVEMENT IN HARVESTE RS.-

Specification forming part of Letters Patent No.

54,374 dated May l 1866' Reissue No. 3,389, dated April 20, 1869.

provement in Reaping and Mowing of which the following is a full, clear, and eX- act description, reference being had to the accompanying drawings, and to the letters and figures marked thereon, which form part of and in which- Figure 1 represen ts a plan or top View ofthe invention; Fig. 2, in section at the line marin Fig. 4l. detached view ofthe spnr-wheels Gand H with their attachments; and Fig. 4 shows a side l view of the arrangement for adjusting the reel. l

rlhe invention consists in a novel arrangement of gea-ring, whereby the desired varia- I tions on the speed of vibration of the sickle r are readily and 'easil y secured for adaptin g the saine to the different conditions or kind of crop operated upon.

Similar letters of reference denote corresponding parts in all the figures.

In the accompanying drawings, A represents the frame of the machine, and B the draft-pole or tongue thereof, which is pivoted at its rear end, as shown, by the pivot-bolts d d, and has a vertical motion about the same, being held in position by the vertical guides c e upon the front ofthe frame.

Orepresents thedrive-wheel which, bymeans ofthe intermediate gearing, operates the sickle, Nrepresenting the other wheel of the machine, which propels the reel.

D represents the shaft of the driving-wheel C, supported in suitable bearings upon the frame, upon which shaft are fixed rigidly the gear-wheels E and F, one beinglarger than the other, in the proportions and for the purposes hereinafter specified. The spur-wheels G and H, which gear into the wheels E and F aforesaid, respectively, are'arrau ged upon the shaft K loosely, so as to rotate independent of said shaft, except as hereinafter mentioned. By means ofthe bevel-gearing upon the end of the shafts, as shown, the revolution of the shaft K revolves the shaft L, which drives the pitmau-rod M, connected with the sickle, and thus operates the same.

a, Fig. 3, represents astop or projection upon the shaft K, and b c respectively represent shoulders or clutches upon the sides of the wheelsG and H. By this arrangement,when

strike upon thestop or pin a, the revolution of said spur-wheel will revolve the shaft K, but when moved back the spur-wheel will revolve wit-hout imparting mo; tion to the said shaft. Thus when the wheel G, which is driven by the Wheel E, is thrown upon the stop or clutch pin a the shaft K is revolved more rapidly than when H, driven by F, is thrown upon said stop a. The lateral ading driven by H care must be taken to throw the wheel G clear from said stop a. Thus by a proper adjustment of the gearing E G and ,respectively, with respect to the size of the wheels and their position on shaft K, the different velocities required under the circumstances above mentioned may be given to the sickle.

lrepresents a belt or cord passing around the shaft or axle ofthe wheel N, and also around the drum m, through a square hole in which the square rod a passes and slides said rod n, being connected by a universaljoint to the rcel-shaft O.

rrepresen ts a slotted arm, pivoted at its lower end to the frame A, so as to have a vertical movement about said pivot, and held rmly in place, when adjusted, by means of a screw, rf, which slides in the slotted arc S. Through the slot in r the arm p passes, which supports the shaft-u and reel, said desired position by the key g, as shown. By this arrangement the reel can be raised or lowered or moved forward or backward to any desired position and the band l always kept at arm being held in the the proper tension, the support R of the opposite end of the reel being provided with a. series of holes,wherein the reel may be adjusted as desired.

P represents a bent lever,having its fulcrum,

at y. by means of which,in connection with the rod k, the front edge of the sickle-bar may be raised up, when desired, to adapt the same to the uneven surface of the ground.

W represents a Wheel, which supports the rear part of the machine, which wheel is adjstable, so as to raise or lower the said rear part of the machine.

What is claimed as the invention of HIRAM R. LAVEY is- 1. Thecombination of two spur driving-gears of unequal size with tWo `corresponding pin ions, for changing the speed of the cutters.

2. So combining two driving gears of unequal size and two pinions meshing therewith that the speed of vibration of the cutters may be changed Without throwing said gears out ot' mesh.

3. Two gear-wheels 0r pinions on one shaft, either of which may be clutched to or unclutched from said shaft, for changing the speed of vibration of the cutters, substantially as described. i

GHS. R. COOK.

Witnesses:

E. G. CALVIN, S. R.`RoGERs.

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