USRE766E - Improvement in harvesters - Google Patents

Description

' UNITED STATES PATENT OFFICE.

LEWIS liIlliIiER, OF OANTON, OHIO, ASSIGNOR TOC. AULTMAN & OO.

IMPROVEMENT lN HARVESTERS.

Speciiication forming part of Letters Patent No. 20,180, dated May 4, 1858; Reissue No. 766, dated July 19, 1859.V

Division C.

To all whom it may concern:

Be it known that I, LEWIS MILLER, ofGani'on,in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Machines for Harvesting Grain and Grass, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which make part of this speciiicatlon, in whichv Figure 1 represents a view in perspective of the machine as arranged for mowing. Fig. 2 represents a front elevation of the machine, the black lines showing the finger-beam rest ing upon the ground in the position it will occupy when the machine is mowing on a level surface, the red lines showing the position of the finger-beam when mowing on an uneven surface, with its lei't end raised to y conform thereto, and the blue lines showing the lingerbeam raised olf and held parallel to the ground by means of a hand-lever topass over an obstaclet Fig. 3 represents by the black lines a front elevation of the machine, with the 1inger-beaui folded over upon the frame in a compact manner. The red lines show the lingerbeam raised 011 end preparatory to being lifted by the hand-lever, and turned over upon the frame, and the blue lines show the finger-beam almost raisedup and turned over upon the frame. Fig. 4 represents a view ofthe under side ot' the main frame and certain parts connected therewith, but showing more particularly the arrangement of the bracel for supporting the coupling-arm. Fig. 5 represents on an enlarged scale a View of one 'side of a portion of the connecting-rod which transmits motion from the crank to the cutter. Fig. 6 represents a front view of the quadrant-lever for lifting and the ratchet-teeth and detent for holding up theiinger-beam when raised; also, a fragment of the adjacent part of the frame detached from the machine. Fig.7 represents a similar view of the same parts, the quadrant-lever and its ratchet-teeth being in the position they occupy when turned aside to disengage the teeth from the detent preparatory to raising or lowering the iiuger-beam. Fig. 8 represents a view of the side of the quadrant having the ratchet-teeth thereon; and Fig. 9 represents a vertical section at the line' w .fr of Fig. 1, showing the knuckle of thejoint force, being sustained by the bearings of the crank, is apt to overstrain and work loose that part of the frame which sustains the bearing, and if the bearing of the crank be supported by a hanger or bracket projecting from the frame this liability to work loose is greatly increased. It the finger-beam be drawn by a coupling-arm hinged to a hanger or bracket on the frame, the force required to drive the cutter acts on the hanger or bracket which carries the hinge of the coupling-arm in one direction with the same force with which it actsin the opposite direction on the hanger or bracket which carries the bearing fory the journal of the crank, and as the direction in which these forces act upon the hangers or brackets is 1eversed with every reversal ofthe motion of the cutter it is found to be ditlicult, if not impossible, especially in a wooden frame, to fasten these hangers s o that they will notwork loose.

This working ot' the hangers impairs the durability of the machine, but is objectionable chiefly because it varies the stroke of the cutter, audthereby impairs its shearing action, and thus lessens the efficiency ofthe machine, and therefore it is of great importance to remedy this defect, and my contrivauce Ifor that purpose is the subject of this patent; and it consists in combining the bearing for thejournal of the crank and the hinge of the coupling-arm with a hanger or bracket which is made common to both; and therefore anyirregular or accidental yielding or Vibration of the -crank is imparted equally to the couplingarm, finger-beam, and cutter, thus preventing any of the derangemeuts of the stroke or action of the cutter, which are inevitable when the crank-bearing and the hinge of the coupling-arm are supported on separate brackets.

Besides, this arrangement lessens the cost of construction and the weight'to be drawn by making one of the two hangers or brackets heretofore used perform the duty of both.

yThe accompanying drawings represent a mowingmachine having its main frame A A' A2 A3 A4 A5 supported by an axle, C, anda pair of wheels, B and B', and having a tongue, Y, for the horses to draw it by, projecting from the front of the main frame.

A finger-beam, M, projects from' the right side of the frame, to Which it is connected by an intermediate coupling-arm, L, hinged at its right end to the nger-beam, and at its left end to a hanger or bracket,H,projecting some distance downward from the under side of the main frame. This hanger, in addition to supporting the hinge b of the couplingarm,a1so supports the bearing o for the journal of the crank, which imparts a vibratory motion to the cutter Kthrough aconnecting-rod, J. The hingeand bearing are placed as near as possible, in order that the raising and lowering of the couplingarm may be on an axis of mo, tion, as nearas may be, coincident Withthe axis of motion of the crankyaud thereby prevent y any injurious interference with the stroke of the cutter from the movements ofthe couplingarm.v

The parts of the machinewhich have not been particularly described do not relate to the subject-matter ofthe claim under this patent, and need not therefore be further referred to here.

What I claim under this patent as my in vent'ion is- Theeombination ofthe crank and the bearing for its journal, the cutter, thefcouplingarm, and the hinge of its inner end, with a hanger which is made the common support for the hinge of the coupling-arm and 'thejournal of the crank, arranged and operating substantially as herein set forth. y

In testimony whereof Irhare hereunto subscribed my name.

` LEWI's MILLER.

Witnesses:

S. HAWKES, JAS. S. TONNER.

Images