USRE1109E - Improvement in harvesters - Google Patents

Description

isin by which the latter is operated.

' UNITED STATES' PATENT OFFICE.)

A. PALMER AND S. e. wILLIAMS,`OE RROOKPORT, NEw YORK, AssIoNoRs,

BY MESNE ASSIGNMENTS, 'ro '1). S. MORGAN, WILLIAMS, AND AARON PALMER.

WM. H. SEYMOUR, `S. G.

IMPROVEMENT IN HARVESTERS.

Specification forming part of Letters Patent No. 8,192, dated July l, 1851 Reissue No. 305, ,dated April 10,

` 1855; Reissue No. 1,109, dated January l, 1861.

act description thereof, reference being had to the accompanying drawings, making a part of this specification, in which" Figure 1 represents a view in perspective of a harvesting-machine to which Our improvements are applied; and Fig. 2, a similar view of the driving-Wheel and a portion of the vibrating arm o'r lever which carries the rake, showing more particularly the mechan- Tlie invention claimed under this patent consists in arrangin an automatic Sweep-rake in such relation to a quadrant-shaped platform, upon which the grain falls as it is cut, that it shall vibrate over the same at suitable intervals to discharge the out grain upon the ground.

The accompanying drawings represent Va convenient arrangement of parts for carrying out the object of our invention. y

- The frame is composed of three longitudinal beams, H I J, and two transverse beams, F G, the whole being Securely fastened to each other at their points of intersection. The main or driving wheel A is placed between the Outer longitudinal beam, l, and the central beam, H, and has its bearings in arched supports or brackets vE, rising from each of these beams.

Guard-fingers t, through which a sickle, M, vibrates,are secured upon the front edge of a platform, D, upon which the heads and upper portion of the stalks of grain fall as they are severed by the cutting apparatus, which may be constructed-and operated in any suitable manner. quadrant or sector of a circle, of which the arm or lever which carries the rake-head forms the radius, and the fulcrum-pin on This platform is shaped like a which said lever vibrates the center, in order that the grain may be swept round` on an are of a circle and be discharged upon the ground behind the driving-wheel. A tongue for the team to drawl by is Secured rigidly to the frame in line with the central beam, H, and projects forward at a right angle, or thereabout, to the front edge of the frame. A fence or guard, O,which may either be made straight or curved to correspond with the sweep of the inner end of the rake, arises from the inner edge of the platform and prevents the grain from falling oil1 or becoming entangled in the gearing. The front end of this guard may also be curved outward and secured to nthe' tongue, and thus act as a guide to bring the grain in toward the cutting apparatus. A curved fence or guard, N, rises from the outer edge of the platform,

' with which it corresponds in curvature, and

serves to prevent the grain from being deilected' from its path or thrown from the platform by the centrifugal force generated by the vibrating movement-s of the rake.

The vibrating arm or lever B, which carries the rake, hasy lugs or projections 'n b secured upon the upper and'lower sides of its inner end, on each of which lugs cogs or teeth are arranged, so as to form a rack. These plates ,embrace brackets or ears e e, projecting horizontally from the Wheel-support E, and are held in place, by a fulcruIn-pin, S, which passes through both ears andlugs. This fulncrumpin thus serves not only to hold the arm or lever B in a horizontal positionwithout support at its outer end, but also forms the center of motion on which it vibrates freely over the platform. This arm or lever is vi.

its own rack. The ,teeth q of the inner segment projectfoutwardly, while those p of the outer set-project inwardly. f l Y The rake-head C, into which the Arake-teeth are inserted, may be connected to the operatinglever B by any suitable hinge or joint that will allow it the proper degree of vertical play. A guide-rod, c, projects from the outer end of the rake-head in the same aXial plane, for a purpose hereinafter explained. A guide-rail,

d, which slopes gradually from front to rear of the machine. is supported above ythe outer frame, N, with which it conforms in curvature,

Yby means of brackets d d2, curved outwardly,

to permit the end of the guide-rod c to travel beneath the guide-rail when .running back-V ward. A shortsection of the rear end of thel rail d is hinged, so as to form a joint or gate,

f,- capable of moving vertically on its pivote fthe rear end of which section'rests upon they guard N. vA guardrail, g, having an upwardl inclination, surmounts the after end of the guard N. The outer lor grain end of the ma-j 1 chine is supported by a wheel, k, having its bearings in the outer longitudinal beam. J

The operation of Athe machine is as follows( .As the wheel to which the gearing is attached travels over thel ground the machinery is set in motion, and the cutters lsever the standing grain, which falls upon the platform. Sup pose the rake to occupy the position shown in@ Fig. l-thatis, to be ruiming forward. When ini this position the teeth q are in gear with the rack b, and the rake-head C is held above the falling;

grain by the guide-rod c on its outer end slid-; ing upon the inclined guide-rail d. The coni tinued rotation of the drivingwheel causes the lever B (which always vibrates` in the s ame. V horizontal plane) to push the rake before it" until the guide-rod c has passed beyond the front end of the gui-derail d,gwhen the rake? drops suddenly upon the platfrom, its teeth'r i 4striking into the butts of the fallen grain asitE lies thereon. By this time the teeth g have es- .caped from therack b and theforward 1nove:

ment of the rackcease's. The two sets'of 'teeth p and q are arranged upon the face of thedriv- .ing-wheel in such relation to each other that the moment the latter escapes from the lower' rack, b, of the vibrating arin'the former engage with the upper rack, u, and reverse the vmotion of the lever. The lake then travels backward, (describingan arc of a circle ofwhich the fulcrum-pin S forms the. center and the operating-lever B the radius,).drawing the grain with' it, and discharges it `heads foremost 'upon the `ground behind Ythe machine, with its stalks at right angles, or thereabout, thereto, and sufficiently removed from the standing grain to' be out of the path of the team during their succeeding tour around the field. 4 As the Yrakev approaches its extreme rearward point the guide-rod clifts the jointed rod fand pas ses beyond it, when the jointed rod immediately resumes its former place. The. guard-rod g on the rear of the guard N prevents the rake from going back so far as to dropoi the end o f the guard. The teeth p and q are so arranged upon the driving-wheel that when the backward movement of the rake has ceased' (by reason of the teeth p escaping from the upper rack, n) the teeth 'q do not immediately engage with lower rack, b, to start the rake forward, but the rake remains at rest while the driving-wheel makes about two-thirds of a revolution, by which means a sufficient pause is made'to allow a quantity of grain suiicient to form a gavel to accumulate upon the platform. The rake then begins its forward move ment, theY guide-rod c now sliding on the in Yclined guide and elevating the rake-head until it reaches the front edge of the platform, when the rake falls and the operations above described are repeated. i l

VBy this description, them-it will be seen that the operation of the rake is such that it runs rapidly forward, (rising as it goes to pass over the fallen ,grain,) drops suddenly-upon the platform, at once begins to move quickly back (drawing the grain off on an arc of a circle and discharging it behind the driving wheel) until it reaches the termination of its backward movement, pauses a moment for a gavelA to accumulate, and (then moves rapidly' forward, as before.

Vhat we claimv under this patent as our inf vventifon is- VvDischarging the cut grain from a quadrantshapedplatform, on which it falls as it is cut,

by means of an automatic sweep-rake sweep-V ing over the same, substantially as described. vIn testimony whereof we have hereunto subscribed our names.:

AARON PALMER. I ,y STEPHEN G. *WILLIAMS Vitn/esses: y

T; H. ,SrARRovn D. S. MORGAN.

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