US598019A - sharp - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

C. S. SHARP.

GRAIN BINDER.

No. 598.019.f Patented Jan. 25,1898.

`G 1li 3 Sheets--Sheet 2. C. S. SHARP.

GRAIN BINDER (No Model.)

No. 588,018. Patented Jam-28,1888.

W555i 4/ M l.

a sheetssheet s. C. S. SHARP. GRAIN BINDER (No Model.)

No. 598,019. Patented Jari. 25, 1898.

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CHARLES S. SHARP, OF AUBURN, NEW YORK, ASSIGNOR TO THE D. M. OSBORNE d5 COMPANY, OF SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent N o. 598,019, dated January 25, 1898.

Application iiled January 9, 1895. Serial No. 534,347. (No model.)

To all whom t may concern:

Be it known that I, CHARLES S. SHARP, of Auburn, county of Cayuga, and State of New York, have invented an Improvement in Grain-Binders, of which the following description, in connection with the accompanying drawings, is a specification, like letters and igures on the drawings representing like parts. i

This invention has for its object to improve the construction of grain-binders, to the end that the discharge-passage of the binder may be opened for the discharge of the bundle for a maximum period of time g and the invention consists in a grain-binder having a compressor normally held in its elevated position to close the'discharge-passage of the binder,

means for operating said compressor to quickly open said discharge-passage' at the beginning of the descent of the needle, and means for operating said compressor to quickly close said discharge-passage just as the needle ceases to descend, thereby leaving the discharge-passage open Vfor the discharge of the bundle for a maximum period of time.

The compressor is herein shown as normally held in its elevated position to close the discharge-passage by means of a locking device, and areleasing device is provided for operating said locking device to release the compressor, and said releasing device is operated, preferably, by the needleshaft, or it maybe by the needle on said shaft, and said operation takes place at the beginning of the descent of the needle, so as to permit the compressor to quickly open the dischargepassage at the beginning of the descent of the needle, and, furthermore, as herein shown, the compressor is connected with the needle by a link, the points of connection being at different distances from the respective axes of thecompressor and needle, so that just as the needle ceases to descend the compressor will be restored to normal position ata greater rate of speed than the needle travels, to thereby quickly close the discharge-passage.

yFigure l is a plan view of a sufficient portion of the binding mechanism of a grainbinder to illustrate my invention; Fig. 2, a

side elevation of the mechanism shown in Fig. l; Fig. 3, a detail showing the needle at the limit of its upward throw or stroke. Fig. 4, a detail showing the needle just beginning its downward stroke, having just tripped the compressor; Fig. 5, a detail showing the compressor-bar bridged to span one of the packervlinks and having an arm to which the locking-lever ofthe compressor is connected; and

Von the rod o3, all are substantially as usual in grain-binders, with the exception that the needle b has a slotted heel extension b2 next its fulcrum, and that the compressor-bar or sleeve c3 is arched or bridged at c4 to span the connection of one of the links cof the packer a to thereby insure compactness of parts.

The usual independent tripping mechanism is provided for the binderactuating mechanism, consisting, as herein shown, of the trip-arm t, secured to the shaft t', bearing an arm t2, which engages the usual clutch for the binder-actuating mechanism.

A short arm c5 is iixed to and projects from the sleeve or compressor-bar,which has loosely connected with its lower end a vlatch c, notched or shouldered at its end to engage a quadrangular or other shaped block c7.

The latch c6, engaging the block c7 and connected with the arm c5, rigidly secured to or cast integral with the compressor-bar, constitutes a locking device for holding the compresser-bar, and consequently the compressor, in its normal or elevated position to receive the grain.

A bell-crank lever d is pivoted to the framework, as at d', for instance, one arm of which is formed with an eye cl2, which receives the locking-lever c, and the other arm of which has loosely connected to it a iinger cl3, pro- IOO pressed down upon said shaft by a spring 5. Y

A cam or projection d5 is formed on the hub of the needle b or on its shaft, which, when the needle arrives at a certain position, engages the notched or shouldered end d4 of the finger d3, and by moving said linger longitudinally in the direction ofY the arrow, Fig. 3, turns the bell-crank lever on its pivot, raising the locking-lever c out of engagement with the block c7. Therefore the bell-crank Y lever d, which is connected with the locking device, the iinger d3, connected to it, and the cam d on the needle-shaft or moving in conjunction with the needle constitute a releasing device for the locking or retaining device of the compressor.

A curved link e is connected at one end with the compressor-barci, and has at its other end a pin orroll which enters and works in a slot formed in the heel extension b2 of the needle.

As the needle Vb falls the pin orV roll of the link e follows along the slot until it arrives at the end thereof, at which point it arrives just before the needle resumes its normallydepressed position, and then by pressure upon or against the link e the compressor` bar c3 is turned and the compressor Vc again elevated. Thus the compressor is tripped at the beginning of the descent of the needle and restored at the end thereof.

I desire to allow the compressor to remain tripped as long as possible to insure the 'discharge of thebundle, for if restored too Vsoon it engages the bundle which is being discharged, and, on the other hand, it is necessary that the compressor shall be restored just as soon as the bundle is discharged, in order that it may catch the Aiirst grain of the next bundle. To carry out these very desirable results it will be seen that the needle and compressor are pivoted on separate rods or shafts side by side, thereby turning on separate and independent axes, and that they are connected by link e, the ends of which are attached to the needle and compressor, respectively, at dierent distances from their axes-as, for instance, the link is connected with the needle at a considerable distance from the axis thereof, while its connection with the compressor is but a short distance from the axis thereof, and owing to this difference in radii thearc through which the needle end of the link travels is a less number of degrees than the arc through which the compressor end of the link travels, and therefore it will seen that the compressor is moved at a greater rate of speed than the needle, and hence is restored quickly just as the needle arrives at its lowermost position.

In Fig. 6, 5 4L represent, respectively, the axes of the needle and compressor; 6, the connecting-link; '7, the radial line extending from the axis of the needle to one end of the link, and 8 the radial line extending from the axis of the compressor to the other end of the link. The dotted line 9 indicates the travel of the needle while restoring the compressor,

and the dotted line l0 the travel of the compressor. Y

It will readily be observed that the needle travels a less number of degrees than the compressor,and hence permits the compressor to remain tripped longer than usual and at the same time restored in time for use.

The compressor-bar has projecting radially from it at points more or less remote from eachother two stops 2 3, (see Fig. 4,) one of which, as 2, by striking against the needlebar or other fixed stop limits the ascent of the compressor, and the other, as 3, bystriking against said needle-bar or other xed stop limits the descent of the compressor.

The operation of the parts is as follows: In Fig. 2 the compressor is shown in its normal elevated Vposition to receive the grain, the needle being depressed and the packers operating to form the bundle. The bundle having been formed, the needle rises to the position shown in Fig. 3, when the cam or Vprojection d5 of the releasing device engages the finger d3.V As the needle descends (see Fig. 4) the finger cl3 is thrust longitudinally, turning the bell-crank lever d and raising the arm c, and as said arm disengages the block c7 it moves longitudinally through the eye d2 and the compressor V-falls. J ust before the needle arrives at its lowest position its slotted heel extension acts upon the link e and quickly restores the compressor, drawing the arm c back into engagement with the block c7 and the parts are again in the position shown in Fig. 2.

I claim- Y l. In a grain-binder, a compressor, a locking device for holding it in its normal elevated position to receive the grain, a releasing device for said locking device operated by the needle-shaft at the beginning of the descent of the needle and a link connecting the compressor and needle at different distances from their axes, whereby the compressor is restored quickly at the end of the descent of the needle, and relatively thereto, substantially as described.

.2. In a grain-binder, the combination of independent tripping mechanism for the binder-actuating mechanism, Jthe compressor c, pivoted compressor-arm c upon which said compressor c slides bodily against the spring c2, a locking device for holding the compressor-arm with the compressor in its elevated position to receive the grain, a releasing device for said locking device operated by the needle-shaft, and a link connected at one end to the compressor-arm c', and at the other end to a slotted heel extension on the needle, the end connections of the link with said arm c and needle being at diiferent distances from Vtheir axes, substantially as described.

3. In a grain-binder, a compressor and a IOO needle turning onv seperate and independent axes, e link connected et one end with the compressor at a short distance from its axis and connected at the other end with the nee- 5 .die et. a. much greater distance from its exis,

vIO

whereby the compressor is restored by the needle but moved ete greater rate of speed, L looking device for holding said compressor in elevated position, means for releasing it, and Ineens for restoring said locking device operated by and .at the end of the descent of the needle, substantially as described.

In a graindiinder, a compressor, e locking device for holding it in its normal ele vot-ed position to receive the groin, o releasing device for seid locking device operated t CHARLES s. SHARP.

Witnesses J. J. GLASS, I-I. R. HANKINS.

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