US140675A - Improvement in harvesters - Google Patents

Description

f 2 Sheets--Sheet 1. l. W. BRAGG.

Harvesters; N0. 140,675, Patentedju-l y8,1873.

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2 Sheets--Sheet 2.

I. W. BRAGG.

` Harvesters.

NO. 140,675, Patentedjuiy 8,1873.

AM. PHnra-umosnAm/c ca Isn/.(ossomefs mams) UNITED STATES PATENT EEIGE.

ISAAC YV. BRAGG,.OF KIDDER, MISSOURI.

IMPROVEMENT IN HARVESTERS.-

Specification forming part of Letters Patent No. 140,675, dated July 8, 1873; application filed May 31, 1872.

gles to the line of the cutters, to form a bundle of proper size, the grain in the interim,

during the retreat and return of the table, be-

ing received upon cut-otisupporting bars, and y an oscillatingtrou gh being employed to square the butt-end of the gavel of grain previous to the retreat of the table supporting it 5 second, in the provision, in connection with the reciprocating bundling-table, of reciprocating heads or projecting vertical prongs above the surface of the table, the motion of which toward each other serves to collect into a bundle the grain which has been deposited in a uniform layer upon the table; third, in the provision of a vibrating arm carrying fingers or jaws, which,

when over the table, embrace each other so as to surround the bundle formed by the reciprocating heads, and which, when over the spot upon the ground upon which the bundle is required to be deposited, open out and let the bundle or gavel fall; fourth, in peculiar devices for imparting peculiar motions to the vibrating arm and fingers.

Figure lis a perspective view of so much of a reaping-machine as is necessary to illustrate my invention, the gure showing the construction and arrangement of my improved devices. Fig. 2 is a plan of the under side of the machine, showing the table-moving devices. Fig. 3 is a skeleton perspective view, showing the peculiar mechanism for operating the bundling devices. Fig. 4. exhibits, in perspective, the cam and slide movement for givg the motion described to the bundlingta- A is the frame of the machine, between the projections a of .which the customary reaperknife is located and operates, the knife being connected to the driving-shaft in any of the usual ways. B is a sliding frame, the top of which (removed to show the mechanism below it) forms a table or platform, ou which the grain falls at intervals and is bundled. The frame B has a reciprocating motion to and from the knife imparted to it by means ofthe followingdescribed mechanism: A cam, (his attached to the shaft D and fitted to revolve between the jaws e ot' the slide E, the shaft D passing through a slot, c', of the slide. An ear or lug, c, of the slide carries a rod or pitman, F, connected to a bell-crank, G, pivoted at g to the frame A. A bell-crank, H, is pivoted to the sliding frame B, at b, which has one of its ends connected to the arm I by rod J, the bell-crank G being connected to the same arm by rod K in the manner shown. The inner end of the bell-crank H is connected by rod L to a lever, M, the adjustment of which, through lever N, regulates the position of the slide B with relation to the knives ofthe rea-per. Parallel bars or links O may be used to preserve the sli-ding frame B parallel with the cuttingknives of the reaper, or the said frame may be made to move between guides.. It will be seen that owing to the lever M being stationary when adjusted any movement of the cam G will result in a corresponding movement of sliding frame B. The arm I is attached to and operates the arm I and segmental toothed are Q, the arm P, by means of slotted armU, serving to partially rotate-the standard or post T, and the arc Q to give through pinion (dotted) and wheel It reciprocating motion to the projecting prongs S S in such a way that in one direction of motion of the wheel R the prongs approach each other, and in the opposite retire from each other. The prongs S connect by rack c with wheel lt, and the prongs S by rack c with the same wheel. The motion of the prongs toward each other serves to collect all of the grain which has fallen upon the platform into a bundle for removal, in the way hereinafter described. The post or standard T, the lower end of which is journaled in a projection from the sliding frame B, and rotated by lever U in connection with lever P, is adapted to make a fourth of a turn backward and forward; The post or standard has an arm, V, attached to it, which carries the grasping-fingers W W.

The machine is so arranged that when the arm V is over the sliding frame B and the prongs closed together the ngers W WV will grasp the grain thus formed into a bundle, and the vibratory motion of the arm V will then carry it to the position shown in Fig. 3, at which point the ngers will open out and drop the bundle on the ground in the rear of the machine. The journal X, upon which the post T rotates, although not permitted to revolve, receives a reciprocating vertical movement, which, in the upward movement, raises the bundle oi' the slidingframe table B before the arm T carries it off. The double-ended lever Y carries a toothed arc, y', which gears into the circular rack y on top of the journal X. The upward movement of the journal X causes the double-ended lever Y to close the iin gers W W upon the bundle ofthe grain on the table B, as shown in Fig. 1, the lever Y being connected to the fingers by rods Z and short levers ff. The lever f operates the two fingers W and the lever f the two fingers W. The downward movement of the journal X, which occurs suddenly when the arm V is in the position shown in Fig. 3, causes the fingers W W to open and the bundle or gavel to fall on the ground.

The movement upward of the journal X and the sudden downward movement of the same is accomplished by the following mechanism: A small shaft, g, is journaled in the frame of the machine, and has two cranks, g 9', fitted to it. The crank g is moved in one direction by the rod h, crank h, shaft h, and dog h", operated by the pin t' revolving upon shaft D, and in the other direction by the retractingspring j. A bar, m, is passed through a slot in journal X, one of its ends connecting with crank g and the other end (slotted) passing over a stationary pin, k, on the frame of the machine. The `movement of the cranks g g'" causes, by reason of the provision of the inclined slotted end over pin k, the bar m to retain its horizontality while being elevated and depressed. l Near the termination of the upward movement of bar m it strikes the post T and lifts it and the arm V, the first part of the movement of the bar being sufficient to close the fingers W W, and the termination of the movement raises the fingers and bundle bodily off the table, as before explained. When the bar is at the highest elevation it is retained in this position by the spring-catch n. The release of this catch by the pressure ofthe arm V against it enables the journal X to fall suddenly and the iingers W W to open so as to release the bundle and allow it to fall upon the ground.

The rod r, which is operated by lever t and pin i, gives motion to the cut-off grain-supporting bars Y Y and the trough Q. The bar Yl receives the grain and supports it until it is time to let it fall upon the table B, when it retreats so that the grain falls.

To support the grain temporarily durin g the retreat of the bar Yl the bar Y passes to the front by the motion of rod r, the trough at the same time being swung up to square up the ends ofthe grain upon the table B.

I claim- 1. The combination of the horizontally-reciprocating table B, retreating at `intervals from the cutters, cut-oft` supporting-bars Y Y and oscillating trough Q, substantially as and Y for the purposes specified.

2. In combination with the reciprocating table B, the bundling-prongs S S, having a reciprocating motion across the face of the table, and operated substantially iu the manner and for the purpose specified.

3. In combination with the bundling-table B S S, the vibrating arm V and carrying-fingers WW', connected and operating substantially in the manner and for the purpose specied.

4. In combination with the arm V and carrying-ngers WV W, the rotating and vertically-sliding post T, the vertically-sliding journal X y, bar m, lever Y y', rods Z, and cranks ff, the bar being connected to the driving mechanism, and the whole operated substantially in the manner and for the purpose described.

In testimony of which invention I hereunto set my hand.

ISAAC W. BRAGG.

Witnesses FRANK MILLWARD, J. L. WARTMANN.

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