US240440A - mclein - Google Patents

Description

(ModeL) 4SheetsSheet 1.

E. D. MoLEAN.

} Grain Binder. Np. 240.440. Patented April 19, I88l.

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4 Sheets--Sheet 2-.

N A E L c M D H Grain Binder.

Patented April 19,1881.-

NO. 240,44Q.

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. Grain Binder. I No. 240,440. Patented April 19,1881.-

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Wi/Zn eases Nv PETERS. PHOTO-LITNOGRAPNER, WASHINGTON. D C.

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.E. D. McLEAN.

Grain Binder. No. 240,440. Patented April 19,1881.

III/1 N-PEIERS. FHOTO-LITMOGRAFHER, WASHINGTON. D c

NITED STATES PATENT OFF-ion.-

EDWIN D. MOLEAN, OF MARISSA ILLINOIS, ASSIGNOR OF ONE-HALF TO JAMES I. JOHNSON, SAME PLACE.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 240,440, dated April 19, 1881.

Application filed May 24, 1880. (Model) I To all whom it may concern Be it known that EDWIN DEWHURST Mc- LEAN, residing at Marissa, in the county of St. Clair and State of Illinois, have invented Improvements in Grain-Binders, of which the following is a specification.

My improvement relates to an apparatus to be applied to a reaping-machine to bind the sheaves, or it may be used to tie knots in cord or twine for other purposes.

My invention consists in the combination of parts hereinafter described and claimed.

In the drawings, Figure 1 is a rear elevation of the machine. Fig. 2 is a side elevation. Fig. 3 is a plan. Fig. 4 is a section at 1 1, Fig. 3. Fig. 5 is an enlarged front view of the knotter just after engagement with the cord. Fig. 6 is a central longitudinal section of Fig. 5. Fig. 7 is a front view of the knotter, showing the parts just previous to the inward movement of the claw, by which the cord is held and carried through the coil on the retreat of the spindle into the position shown in Figs. 9 and 10, the former being a front view and the latter a central longitudinal section of the knotter. Fig. 8 is a central longitudinal section of Fig. 7. Fig. 11 is a top view of the revolving hook-wheel, showing the hook held in its inner position while carrying the cord under the part of the cord extending from the holder n to the claw. Fig. 12 is an enlarged detail perspective view of the bell-crank for operating the holder at. Figs. 13,14, and 15 are horizontal longitudinal sections, showing the tying mechanism and its operatingcams in different positions. Fig. 16 is a plan view of the holder and cutter, diiferent positions of the movable jaw and cutter being indicated in dotted lines.

A A is the frame-work of the apparatus. This frame-work may be attached to a reapingmachine, and may be partly supported on separate wheel or wheels beneath it. On the frame is a fixed table, B, upon which are three cams, acting on the knotter proper to reciprocate the spindle of the same, and a cam to actuate the bell-crank which operates the holdern.

G G are rails supporting the carriage D,

which travels over said rails. The carriage may be supported on wheels resting on the rails, ormay be made to slide thereon, as shown. The rails have side ribs, 0 O, which enter grooves in the uprights D of the carriage and hold the carriage steady on its supports. E is an arm, attached to the carriage, and giving hearing at its end E to the cord-carrier F. The cord-carrier consists of a bar, F, capable of vertical movement in its bearing E, and having motion imparted to it by any suitable actuating mechanism. I have shown it as descending by its own weight and as drawn up by a belt, G, passing over pulleys H and H, and its ends attached respectively to the cordcarrier and to an arbor or stud, I, fixed to the arm E.

J is a disk rotating on the stud I, and having a hook, J. This hook engages the belt when it (the hook) nearly reaches its upper position, and carries it down to about its lower position. The shape and inclination of the hook J are such that at about its lowest position it allows the belt G to slip from it, and then the cord-carrier is allowed to descend.

The cord K is wound upon a spool, K, turning on an arbor or fixed pin, K The cord extends to the cord bar or carrier F, passing through eyes F F at the upper and lower ends, respectively, of the carrier-bar F. Between the eyes F F the cord lies in a groove, F in the bar F, to prevent it being pinched between the bar and its bearing E. When the carrier descends the end of the cord is seized and held by the nipping-jaws or holder L L near the lower part of the frame. When the bar Fascends the lower end of the cord is retained by the holder and an additional quantity of cord is drawn from the spool..-

As I show the apparatus in form for binding sheaves, I show a binding-table, M, fixed over the carriage. The grain is supported upon the table M, and while being bound is carried to the edge M of the table, from which the sheaves drop after being bound. The table is slotted to allow the passage of the cordbar F while in its lower position.

N is the endless apron, elevating the grain from the platform of the reaper,

M is the inclined part of the table, whichreceives the grain from the apron and carries it to the binding-table The carriage is actuated by the spur-wheels O engaging withtwo driving-pinions, P P, on a shaft, P, through the connecting-rods or pitmen Q Q, extending from wrist-pins Q of the wheels 0 to the upright parts D of the carriage.

R isacog-rack having bearing on the bed A and capable of movement in the direction of its length. The end bears against a spring, S, which yields when there is an extra pressure upon the rack, and pushes it back into position as soon as the extra strain is removed. The object of the yielding rack is to operate the tying mechanism.- As the carriage moves back the stationary, or rather slightly yielding, rack engages with the cog-wheel on the carriage. The object of having the rack to yield slightly when a heavy strain is brought upon'it or when the machine is first started is to prevent breakage of the parts. Supposing four horses to be hitched to the machine, and they were to start quickly, a great strain would be brought upon the parts should everything have to move absolutely at the same second.

T is a cog-wheel engaging with the rack It. It is secured upon a shaft, T, having bearing in the upright D of the carriage, and carries at its outer end a cog-wheel, U, which engages with a similar wheel, V, upon the hook-wheel W, which turns upon the bearing X. The wheel W carries an automatic hook, W, which is hinged to the wheel at W and is forced outward to engage the cord by a spring, W acting on a pin, W connected to the heel of the hook. The hook is folded back flush with the face of the wheel W, to prevent its engaging the cord on its second revolution by acam, Y, acting on the pin W (See Fig. 11.)

W is a spring upon the inner arm of the hook W, which spring comes in contact, or very nearly in contact, with the hook, to prevent the escape of the cord K over the point.

Z is a claw, pivoted at Z to the sleeve a, and having at its inner side a cog-segment, Z engaging in a cograck, b, in the inner fiat side of the spindle b. The spindle b and sleeve a have a longitudinal reciprocating movement in the bearings X and c beneath the top of the carriage. The spindle is prevented from turning by a stud, d, which works in a slot, 6, in the top of the carriage. The sleeve at has a limited longitudinal movement on the spindle b but the rotation of the sleeve is prevented by a stud, b projecting from the spindle and workingina slot, a,ofthe sleeve. The sleeve carries a fixed collar, a having a flat top hearing against the under side of the carriage-top.

f is a spiral spring surrounding the sleeve (1, and bearing at one end against the collar a and at the other end against the bearing 0 of the spindle. The tendency of this spring is to keep the sleeve to its forward position in the bearingX. The longitudinal movement of the spindle is caused by a stud, d, carryingafriction-roll, which bears against the cams g h upon the cam-table B, and a spiral spring, 1, within the sleeve a, which bears against a shoulder, a of the sleeve and a shoulder, I), of the spindle, and exerts a constant back pressure upon the spindle. The cam g is pivoted at g, and is forced into the position shown in Fig. 3 by the finger of'a spring, g The purpose of this cam is to first hold out the spindle to the position shown in Figs. 1, 2, 3, and 4, for first receiving the cord, and then to push out the spindle as the carriage moves back to carry the hook Z into the recess in the bearing, so that the second time the cord,is carried around it will pass over the hook Z. (See Figs. 7 and 8.)

g is a stud to limit the backward movement of the cam g on its pivot g. When the stud d passes the end g of this cam the spiral spring I forces the spindle inward and the claw Z is drawn by the cog-gear I) Z hard against the end of the spindle, to hold fast the two thicknesses of cord lying between the claw and the end of the spindle. The retraction of the spindle within the bearing X (see Figs. 9 and 10) draws the part of the cord which the claw holds through the coil. The stud d then comes in contact with the fixed cam h, the spindle is still further retracted, and draws with it the sleeve to, so as to draw the knot tight. When the stud passes the end h of the cam h the sleeve is forced outward by the springf, which draws out the stud, so that when the carriage commences its return forward movement the stud comes in contact with the outer side of the cam 71, and by it the spindle is forced outward, which opens the catch to release the knot, the claw Z then having the position shown in Figs. 5 and 6. The sheaf or other object tied is then free to drop or be taken from the table M. As the carriage continues its return movement the stud d comes in contact with the fixed cam 70, and, passing along the same, it springs outward and passes the end 9 of the springcam g, which end is then carried back by the spring 9 so that on the rear movement of the carriage the stud d passes along the outer side of the cam g, as before described. When the carriage is again moving forward toward the inclined part M of the table the apparatus is ready to receive an object to be tied say a bundle of grain-the lower end of the cord-carrier bar F is some distance above the table M, (see dotted lines, Fig. 1,) and the grain passes beneath the carrier and against the binding-cord. The end of the bar carries the cord with it, so that the bundle is nearly surrounded by the cord. (See dotted lines, Fig. 1.) Then, when the carriage reaches its first or forward position, the cord-carrier bar F descends and tightens the cord all around the bundle, and the descending part K of the cord is engaged by the finger a of the lever n, and carried, with the ascending part K, into the recess (1 of the plates (1 q, between which the lever 71. works. The finger n forces the cord between the plates, so as to hold it tight upon the bundle while the knot is being made. Just after the cord is made fast by the finger n the nipper-jaws L L open and release the end of the cord, and receive the cord that is carried down by the bar F and close upon it to hold it tight. Just after the jaws L L have closed upon the cord that is carried down by the bar F the spring-shear 7* moves forward above the nipper-jaws and cuts off the cord, so that the two ends are loose and free to becoiled around the end of the spindle and claw by the revolution of the wheel V, as before described.

The lever n is fulcrumed on a pin or stud, n which passes through a slot, if, in the lever, to allow the lever endmovement as it is vibrated by the arm 8 of the bell-crank s, to which it is connected by a pin, 8 The bellcrank is surrounded by a spiral spring, 8 acting to throw the finger n outward and release the cord. The opposite movement is given to the bell-crank by means of a cam, t, on the cam-table B, which operates on a stud, 8 upon the arm s of the bell-crank during the movement of the carriage. The cam tis pivoted upon a stud, t, and its end t is forced outward by a spring, t The outer side of the cam, near the end, has an inclined face, it, along which the stud .9 passes and presses this end of the cam inward in opposition to the pressure of the spring t Then,when the stud has passed the end it of the cam, the cam is forced outward by the spring, and on the reverse movement of the carriage the stud 8 comes in contact with the inclined end t and is by it forced inward, compressing the spring 8 and by means of the arm 8 swinging the lever 02 into the position shown in Fig. 3, to nip the cord at a point between the bundle and the knotter, as before described.

I will now describe the actuating mechanism of the nipping-jaws or holder L L.

L is the fixed jaw. This jaw forms arest and guide for the shear r. The moving jaw L is bent at an angle, and its shank L works in the vertical parts a of a guide-plate, u.

o is a spiral spring surrounding the shank L one end of which spring bears against the stud L extending downward from the shank L The spring forces thejaw L outward toward the other jaw, L, to hold the cord between them. When the proper time comes to release the end of the cord to allow the knot to be made, as before described, the stud L comes in contact with the inner face of the cam '27, which pushes thejaw L inward from the fixed jaw L. and releases the end of the cord. The cam 11 oscillates on a pivot, 12, and has a downturned arm, v acted on by a spring, '0 tending to hold the arm in contact with the stop pin or stud 20 The arrangement is such that as the carriage is on its return or forward movement the cam turns on the pivotpin and allows the stud to pass, and then, under the influence of the spring '0 the cam resumes its position, ready to act on the stud, as'

described.

The shear 1' has ashank,r, working in guideplate w. The shank is surrounded bya spiral spring, r bearing against the inner side of the outer bearing, to, at one end and against a cross-pin, T of the shank. The tendency of the spring is to force the shear inward to sever the cord above the nipper-jaws L L. To allow the cord to enter between thejaws and to place the shear 1 into position for its active stroke the shear is drawn back by a cam, m. This cam works on a pivot, 00, and its outer end is forced inward by a spring. 09 The cam acts on a stud, 1', .upon the under side of the shank r. The arrangement is such that when the carriage commences its back or active movement the cam or acts on the stud r to draw out the shear and expose the jaws L L for the reception of the cord. Just after the jaws have closed upon the cord the stud passes the end of the cam, and, under the influence of the spring 1, the shear makes a rapid inward movement, severing the cord above the jaws. On the return or forward movement of the carriage the stud moves the cam out of its course, turning it on its pivot and compressing the spring as, and when the stud has passed the cam it resumes the position shown, (by action of the spring,) ready for action on the stud on the next rearward movement.

3 and y are rollers or wheels having respectively horizontal and vertical bearing on the bar or rail A of the bed-frame.

I claim as my invention- 1. The combination of the bearing X, wheel W, hook W, springs W W cam Y, sleeve a, pivoted claw Z, having cog-segment Z spindle I), having cog-rack b, and mechanism for reciprocating the spindle and the sleeve, substantially as and for the purpose described.

2. The combination of the shaftP, pinions P P, wheels 0 O, pitmen Q Q, carriage D, rails C 0, table B, cams g h 70, and spindle 12,

substantially as and for the purpose set forth.

3. The plates q q, having the notch (1 in combination with the nipping-lever n, having the finger n, and provided with the slot 11. the pin a and the bell-crank s 8 8 with its operating devices, substantially as and for the purpose described.

4. The cord-holder consisting of the fixed jaw L and movable jaw L, in combination with cutter 0", having shank 1" working in guideplate 20 upon the fixed jaw L, spring 1, and operatingmechanism, substantially as and for the purpose described.

5. The combination of spindle I), having rack b, sleeve a, claw Z, having cog-segment Z wheel W, hook W, cam Y, carriage D, rack R, spur-wheels T U V, holder L L, cutter r, the actuating-cams, and cord-carrier F, substantially as and for the purpose set forth.

6. The combination of the longitudinally-reciprocating spindle b, having the cog-rack, the reciprocating sleeve to, the claw having the cog-segment, the wheel WV, having hook WV, and the holder n q q, substantially as and for the purpose described.

7. The combination of the carriage D, operated substantially as set forth, table B, cams l 1" 1" r r w w, the cord-carrying bar F, and

g h k, spindle I), having rack b, sleeve a, claw I their actuating devices, all eonstrueted and ar- 10 Z, having cog-segment Z studs 61 d, springs ranged substantially as and for' the purpose" fl, wheel W, hook W, springs W W cam Y, set forth.

5 bearing X, cog-Wheels T U V, rack R, spring EDWIN DEWHURST MGLEAN.

S, bell-crank s 'ss stud 8 earn t, lever n, hav- Witnesses: ing finger n and slot 119, stud of, plates q q, SAML. KNIGHT, having notch g holder L L L L at u, cutter GEO. H. KNIGHT.

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