US163128A - Improvement in mowing-machines - Google Patents

Description

W. AQ WOOD.

` Mnwing-Macrhine. m1635128l Patented May11,1s75.

UNITED SrArns A'rnN'r GrrrcnQ WILLIAM ANSON WOOD, OF ALBANY, NEW YORK.

IMPROVEMENT IN NlWlNG-MACHINES.

Sprcication forming part of Letters Patent No. l63,28, dated May 11, 1875; application filed January 4, 1875.

To all whom it may concern:

Be it known that I, WILLIAM ANsON WOOD, ofthe city and county of Albany, and State of New York, have invented certain new and useful Improvements in M owing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, making part of this speciiication, in which- Figure l is a perspective view of the main and cutter frames, taken from the inner grain side of the machine. Fig. 2 is a section through a portion of the crank-shaft sleeve, also the coupling-sleeve, crank-wheel, and crank-wheel guard; and Fig. 3 is a transverse section through the main brace or couplingrod, showing the spring loop or latch through which the pitman plays, also in section.

The invention consists in providing the double-jointed coupling-arm, which connects the cutting apparatus with thel main frame, with a forward extension, curved upward in front of the pitman, and a hemispherical shield vibratin g with the coupling-arm, whereby the crank-wheel and pitman are protected, as will be explained; and to a novel device for holding the pitman in proper position and guiding the same when making its stroke, all as hereinafter explained.

In the accompanying drawings, A represents the main frame; B, the axle; C, the secondary or bevel-wheel shaft 5 D, the crankshaft sleeve; D', the crank-shaft, and E the thrust-brace. F is thecoupling-rod or main brace, which is provided at its inner end with a hub or sleeve, F1, which is mounted on the lower or forward end of the crank-shaft sleeve D in such manner as to be free to rotate thereon. The sleeve D, near its forward end, is provided with a flaring collar, d, against the forward face of which the inner or rear end of the hub or sleeve F1 abuts. The hub F1 has formed on its outer face a notched or recessed spur, f, which projects beyond the inner or rear face of the hub, said projecting end extending over the Haring collar, and conforming on its inner face to the external outlines, in cross-section, of said collar. The collar d is provided with a notch or slot, df, on its lower side, which, when the couplingarm is turned into a vertical position, permits the spur to pass through and beyond the collar, and when said coupling-arm is turned to its proper position to be connected with the shoe the spur or hook f engages with the collar, and holds the coupling arm connected with the crank-shaft sleeve, at the same time permitting its free rotation thereon. The hub or ,sleeve F1 is enlarged at its forward end, as shown at F2, to receive the crank-wheel, and over the front of this crank-wheel is placed a hemispherical shield, F3, secured to the part F2 by bolts or otherwise, in such manner as to vvibrate with the sleeve and coupling-arm to which it is connected, thus causing the slot or perforation through which the pitman works to maintain a uniform relation to the pitxnan-rod, while, at the same time, it effectually protects the crank from the straw or grass which mig-ht otherwise become wrapped around it. rlhe coupling-arm is made in U form from the edge or rim of the hub or sleeve nearly to a point at which it intersects the shoe, at which point it is curved inward, and at its forward end is provided with a perforation, through which the end of the rod which supports the thrust-brace and shoe passes, being held connected therewith by means of a pin passing through the end of said rod. rlhe coupling-arm Fis provided, near its outer or swinging end, with lugs or ears g g, and between said lugs one arm of an invertedV U- shaped loop, G, is pivoted, the opposite end, when the parts are in position, restingA upon the face of the coupling-arm, and under which loop the pitman plays, the loop being pivoted in such manner as to permit it to be turned down upon its `side for the insertion or removal of said pitman. Between the lugs g, and under the heel of the pivoted end of the loop, is placed a spring, g', which, after the pitman is placed in position, and the loop is swung over it, serves to hold the forward end of said loop down upon the coupling-arm, thus preventing the accidental displacement of the pitman.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, i sl. The double-jointed coupling-arm F, which connects the cutting apparatus with the main frame, provided with the sleeve F1, connecting it with the crank-shaft sleeve, and made to curve upward in front of and to form a shield for the pitmzm, and also provided with the hemispherical shield F3, covering and protecting the crank-Wheel, and Vibrating with the coupling-arm, as described.

2. The pivoted guiding-loop G, applied to the couplingerm F, and retained in position formgu'iding and holding the pitman-rod by means of the spring g', substantially as described.

WM. ANSON WOOD.

Witnesses ADIN THAYER, FRANK S. NIVER.

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