USRE1256E - Improvement in reaping and mowing machines - Google Patents

Description

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c. II. McooeMIoK, or CHICAGO, ILLINOIS, AssIoNEn or L.,.I. MoooRMIoK, WILLIAM s. MoooIIMIoK, AND ovens IIgMoooRMIoK.

IMPROVEMENT IN REEAPING AND IVIOWING MACHINES.

Specification forming part of Letters Patent No. 20,212, dated May 11, 1858; Reissue No. 973, dated June 5,

, 1860; Reissue No. 1,256, dated January 7, 1862.

To all whom it may concern:

Be it known that LEANDER J. MoGoRMIcK, WILLIAM S. MoUoaMIcK, and CYIIUs H. M o- UORMIGK, allofUhicago, in the county of Cook and State of Illinois, did invent certain new and useful Im provements in Reapin g and Mowing Machines, of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, making part ofthis specification, in which- Figure 1 represents a plan of a McCormick reaping and mowing machine embracing said improvements. Fig. 2 represents a side elevation of the machine, and Fig. 3 represents a vertical section taken at the line A aot' Fig.1. Fig. 4 represents a section showing more fully the position of the small adjustable wheel r, with its frame.

It is important that reaping and mowing machines should be so constructed that their cutting apparatus may be shifted and set at various heights from the surface of the ground, and that this may readily be done and still have their gearing to operate equally well at whatever height the cutter may be set.v-

The improvement which is the subject of this patent consists in the combination of the frame ofthe machine, having the cutting apparatus arranged to project'from one of its sides, with adjustable segmental or widened arms, or theirequivalen t, provided With notches or holes (for corresponding bolts or their equivalent) for adjustment, so connected at one end with the axle orjournal of the driving-wheel, and at the other end with the frame of the machine, as to provide for shifting the frame andcutting apparatus and holding them at various heights above the ground with a wide range of adjustment without changing the engagement ofthe gearing of the machine. l

In the accompanying drawings, which represent a McCormick reaping and mowing machine with the said improvements adapted thereto, the finger-beam a' and the draft pole or tongue y are placed at right angles, or thereabout, with each .other and lconnected by a strong frame, c a a., which is best made of a triangular form. This frame strengthens the connection of the draft-pole and the ingerf beam, so as to insure a firm support for the cutting apparatus against the horizontalstrains to which it isliable.

The gearing of said machine is arranged within the frame of the machine, a a a. b is a crank-shaft, which communicates motion to the vibrating sickle c by a connecting-rod, d.

This crank-shaft carries a iiy-wheel, e, and a to turn on that box of the shaft h which is se cured to the outside hound, and the other arm, o, is fitted to turn on a wrist-pin attached to the inside hound, a3, and these two arms must be so mounted that they will turn or vibrate on the line ofthe axis of the shaft h, that carries thepinion fi, that engages with and receives motion from the master-wheel j, so that this pinion and the masterfwheel will continue in gear notwithstanding the forward ends of the arms may be elevated or depressed relatively tothe frame.

The arms, at theirforward ends, are formed in segments or sectors 'p 19, the inner faces of which, along the forward edge, are notched at given and equal distances apart to receive the heads of two screw-bolts, q q, (one for each sector,) that pass through holes in the hounds, the bolts being secured outside by-screW-nuts m. By this means it willbe seen that by loosen# ing nuts m of the screw-bolts for adjustment the sector-arms carrying the driving and master wheels can be depressed or elevated, thus depressing or elevating the frame of the machine with one end ofthe cutting apparatus and holding it at any desired elevation from the surface of the ground. rlhe other end of the-finger-.bar and cutting apparatus can be elevated or depressed in a corresponding degree by having the guide-wheel r mounted in the forward end of a frame, s, the rear end of which turns on a fulcrum-pin, t. 'lhis frame e A 1.256' y is secured in any position desired tov suit the required elevation by a screw/bolina, inserted inv a series of holes in la standard, w, attached to and extending upward from the frames, the holes in the standard being at different elevations to admit of the required adjustment.

Having shown one practical. and good Way to apply said improvements to use, it is manifest that they may be arranged to apply to other rea-ping and mowing machines.

What is claimed under this patent as the invention of the said LEANDER J., WILLIAM S., and CYR'Us H. McCoRMicK isl. The combination ot' the segmental arms or their equivalent, having notches or holes for adjustment with the frame of the machine, and

c. H. Meccanici@ Vitnesses:

THOMAS H. DODGE, J oHN P. JAoons.

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