US274793A - Mowing-machine - Google Patents

Description

(NoiModejL) R. A. LEONARD.

MOWING MAGHINE. I No. 274,793. Patented Mar.27, 1883.

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UNITED STATES PATENT OFFICEQ RICHARD A. LEONARD, OF FITGHBURG, MASSACHUSETTS.

MOWlNG-MACHINE.

SPECIFICATION forming part of' Lett ers Patent No. 274,793, dated March 27, 1883,

Application tiled November 16,1882. (No model.)

To all whom it may concern 7 Be it known that I, RICHARD A. LEONARD, of Fitchburg, in the county of Worcester and State of Massachusetts, have invented certain Improvements in Mowing-Machines, of which the following is a specification.

This invention has for its object to provide improved means for enabling the finger-bar of a mowing-machine to have a limited verticallyoscillating movement on the pivot orjoint that connects it to the finger-bar frame of the machine, so that the outer end of the finger-bar can fall below or rise above the workinglevel of the inner end; and the invention consists in the improvements which I will now proceed to describe and claim. I

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a top view of the shoe and a portion of the finger-bar and finger-bar frame of a mowingmachine embodying my invention. Fig. 2 represents a section on line 00 00, Fig. 1, looking toward the shoe and finger-bar.

The same letters of reference indicate the same parts in all the figures.

In the drawings, A represents the inner end of a finger-bar of the ordinary construction, having the reciprocating cutter-bar B.

0 represents the shoe, to which the inner end of the finger-bar is rigidly attached, said shoehaving ears 0 C, by means of which and aconnecting pivot-bolt, D, the shoe is hinged to the rigid braces E F, forming a part of the linger-bar frame of the machine. The fingerbar oscillates vertically on its pivot in the usual manner. Heretofore the shoe has been provided at theinner side of the pivot with an upwardly-projecting stud or gag-iron, arranged to bear against the portion of the fin ger-' bar frame to which the shoe is pivoted and prevent the outer end of the finger-bar from falling below the level of theinner end. I dis pense with this fixed gag-iron, leaving the shoe in such form that its inner end can swing upwardly and the outer end of the finger-bar can swing downwardly to a considerable extent, so as to displace it below the level of the shoe. The finger-bar is thus adapted to conform more accurately to the surfaces sloping downwardly from level surfaces on which the wheels of the machine may rest. The fingerbar and shoe are lifted bod-ily with the forward portion of the finger-bar frame of the machine by a lifting-lever pivoted to the main frame of the machine in the usual manner and connected to the finger-bar frame by a chain.

H represents a lever pivoted on a stud, I,

. rigidly attached to the under side of the brace E of the finger-bar frame, and having a longer and a shorter arm, the former being connected to the chain J, depending from the lifting-lever, and the latter projecting between the base E and a boss or ofl'set, K, on the shoe 0, so as to press downwardly on said offset when the longer arm is raised by the lifting-lever. When the finger-bar is in its normal working position the lever H is in a loose condition-that is to say, it is freeto play loosely on its pivot to a limited extent in either direction, and will permit the outer end of the finger-bar to fall until the offset K at. the inner end of the shoe forces the shorter arm of the lever upwardly against the part E of the fingerbar against the part E of the finger-bar frame. In

moving to said position the shorter-arm of the lever H depresses the offset K of the shoe, causing the latter to turn on its pivot and elevate the outer end of the finger-bar several inches, thus enabling the finger-bar to pass over moderate obstructions at its outer end without lifting the shoe and fingerbar frame. A continued backward movement of the lilting-lever after the lever H has reached the position last described lifts the shoe, finger-bar frame, and finger-bar simultaneously, the tinger-bar being inclined upwardly from its outer end. The outer end of the finger-bar is thus enabled to pass over higher obstructions than it otherwise could.

It will be seen that the shorter arm of the lever H constitutes an adjustable gag-iron,

whereby the outer end of the finger-bar may a The main frame and lifting-lever are not shown IOC in the drawings, their arrangement with reference to the finger-bar frame being well understood.

I claim 5 The combination of the finger-bar frame, the

shoe pivoted thereto, having an offset projecting inwardly under a portion of said frame, and having a finger-bar projecting outwardly therefrom, and the lever H, pivoted beneath 10 the finger-bar frame, and connected at its longer end to the lifting-lever on the main frame, and projecting at its shorter end over the oflset of the shoe, and adapted. to come in contact above its fulcrum with the upper edge of brace E of the finger-bar frame, as set forth.

In testimony whereof I have signed my name to this specificatiomin the presence of two subscribing witnesses, this 11th day of November,

\Vitnesses:

HENRY H. CRANE, RosooE'A. LEONARD.

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