US489096A - Knotting mechanism for grain-binders - Google Patents

Description

(Model.)l 3 Sheets-Sheet 1.

G. SCHUBERT.

KNOTTING MBGHANISM POR GRAIN BINDBRS.

No. 489,996. Patented Jan. 3, 1893.

56. HAm/EsTEnS,

(Model.)

3SheetsSheet 2. G. SCHUBERT. KNGTTING MEGHANISM FOR GRAIN BINDERS. No. 489,096.

Patented Jan. 3, 1893.

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(Model.) v 3 Sheets-Sheet 3.

G. SCHUBERT. KNO'ITING MEGHANISM POR GRAIN BINDERS.

Patented Jan. 3. 1893.

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UNTTED STATES PATENT OFFICE.

GEORGE SCHUBERT, OF WALNUT, TEXAS.

KNOTTING MECH'ANISIVI FOR GRAIN-BINDERS.l

SPECIFICATION forming part of Letters Patent No. 489,096, dated January 3, 189 3.. Application filed .Tune 2, 1890. Serial No. 354.075. (Model.)

To al whom, t may concern: Y

Be it known that I, GEORGE SCHUBERT, a citizen of the United States, residing at Valnut, in the county of Bosque and State of rlexas, have invented certain new and useful Improvements in Knotting Mechanism for Grain-Binders; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a grain binding attachment of the low down order, for harvesting machines, and has especial reference to the knotting mechanism constituting part thereof.

The object of said attachment is to automatically and successively gather cut grain into a gavel, to encircle it by a cord, to bind the latter firmly around the grain, to knot the binding cord, to sever it near the knot, and finally to discharge the bound sheaf leaving the machine ready to repeat the operation. The several constituent parts employed for this purpose are a pair of gathering arms, a needle for carrying the binding cord, a knetter, a take-u p or tension device,

` shears and cord clamp for cutting and clamping thecord, and discharging-arms, all designed and arranged to co-operate and deliver grain in bound sheaves without the intervention of an operator.

In the accompanying drawings which form part of this-specification: Figure 1, represents a front elevation of the binder attached to the cutter-bar of a harvester. Fig. 2-a central vertical section with the gatheringarms in a closed position. Fig. 3, a fragmentary rear view. Fig. Ll, a top plan view.

Figs. 5, 6, 7, and S, sectional views taken on the planein which the needle moves showing y needle, knetter, cord-clamp, take-up, and

cord in the various stages of forming a knot. Fig. 9, an enlarged view of the completed knot and binding loop. Fig. 10, an inverted perspective view of the guard-plate with cordclamp, shears, take-up, and springs for operating them attached. Fig. 1l, an end view of the guard showing take-up and shears open. Fig. 12, a side view of the knetter opened, and a perspective of its pivotedljaw.

Fig. 1'3, a perspective vieivof theknotter and (l the balance of whic .its shaft and block, with an end view'r of the latter. Fig. lli, a perspective and sectional view of the needle detached, and Fig. '15, a rear view ot' the operating or master-wheel.

Reference being had to the drawings and letters and figures thereon A represents the cutter-bar of a harvesting machine, A a metallic brace or support therefor, and A2 a platform attached to the cutter-bar.

A3 A4 are vertical standards secured at their lower ends to the cutter-bar A; and A5 is a similar standard secured to brace A.

A6 A7 are cross-bars framed into the standards A3 A4; and A8 a brace connecting inlike manner standards A4 A5. A9 is also a vertical standard, secured to the rear sill A10 of platform A2.

A11 is an inclined brace framed into sill A10, standard A9, and, at its upper end into a crossbar A12, the latter connecting thei upper ends of brace A11 and standards A4 A5. Said standards, cross-bars, braces, cutter-bar, and platform constitute the frame of the binder.

Two gathering arms arc provided which serve to compress the gavel to be bound when fed to them by a sweep-rake, a belt, or other well known form of conveyor, one of said arms carrying the needle, and one the knotting mechanism, and as a matter of convenienceI term these the needle-bar B, and knetter-bar C. The needle-bar Bis attached to a rockshaft D having its bearings in brackets a a secured near the upper ends ot standards A3 and A9. ln a similar manner the knotter bar C is attached to rock-shaftE finding bearings b b in cutter-bar Aand the inner en d of platform-sill A10. A

To the front end of each shaft D and Eare rigidly secured arms F G respectively, for operating said shafts as will hereinafter appear, the arm F being the shortest, to move the needie bar through a larger arc of space than that of the knotter bar.

To theface of standard A4 is fixed a bracketH which aords ajournal bearing for one end of a short shaft @the oppositeend of which bears in cross-bar A, and keyed thereon is a master- 'heel I. The rear face of this wheel is provided with cogs d extending entirely aro-und its inner edge, and immediately inside of these a series of cogs e forming an arc of a circle h is flush until the face of.`

the wheel is atf, and at stated intervals serves as a delay surface. The opposite side or front of wheel I is provided with an internal track 'J having a small inward projection or lug K thereon, while about one half of the outer edge of said track (same being part of the periphery of wheel I) forms a delay surface L and the remainder is devoted to cogs g.

Above wheel I is a pinion M provided with teeth h and delay shoet'secu red to ashaf t forming a double-crank j, lo, journaled in bracket H and a bearing attached to standard A4. The cranks j and la which communicate with arms F, G through connecting-rods Z, m, respectively, are operated through the medium of wheel I and pinion M; and the crank j acts upon the needle-bar B through its intermediate mechanism, slightly before the crank 7c acts in a similar manner upon the knotter- Vbar C, as will hereinafter appear.

A revolving shaft N is journaled in bearing O near the upper end of standard A3 and at its opposite end is loosely seated in cross- 'bar A5. Just above this point apinion P is keyed thereon the latter being provided with teeth n and a delay-shoe o adapted to receive motionfrom wheel I, said delay shoe o being more prominent than the cogs n, and the cogs e are more prominent than the delay surface f on the wheel I, which causes the pinion P to properly engage with the cogs. This arrangement of depressed delay surfaces and raised cog, or prominent shoe and depressed delay-surfaces is old, well understood, andin general use. Shaft .N terminates in a crank Q, and connected to this by a ball and socket joint is a rod R, which in turn is joined in like manner to a double crank S loosely secured in brackets T, U, on the back of the needle-bar B.

At the lower end of the needle bar is located a curved needle V, pivoted near its center of curvature, and provided with a circumferential groove p to receive the binding cord, also eyelets q to retain the cord therein, and an eye r through its free end. On its under side is a c am groove s, and teeth t and u; while in its upper surface is set a switch W, controlled by leaf-spring c, and its end is recessed or cut away at w, as and for a purpose that will hereinafter appear. Needle V receives its motion from the crank Sthrough the medium of connecting-rod Z pivoted loosely to both.

The knotter-bar C is recessed as shown at Fig. 2-which recess is covered by a metallic guard-plate X thus aording protection for certain parts contained therein action of which would otherwise be impeded by an accumulation of chaff or other foreign matter.

The knotter-head Y, as shown by Figs. 12 and I3 consists of a rigid and a pivoted jaw land 2 respectively, the latter being pivoted on the former, and retained normally'in a closed position by action of a spring within a pocket formed in part'l. Both jaws are 'ure of said spring 25.

provided with transverse notches 3, 4 which register only when the jaws are wide open. The bottom of the notch 3 is flush with the adjacent upper surface of the foremost projection formed by the notch 4, thus the cord can be carried forwardby the notch 3 as the jaw 2 closes, and the rigid jaw l is further provided with a small lug5 on the outside of its extremity to prevent jaw 2 passing the positionillustrated by Fig. 13 when closed.

To knotter-head Y is rigidly secured on a shaft 6 extending rearwardly througha suit- 'able bearing constituting the front end-wall of recess w, the opposite end of said shaft being journaled in a similar bearing-within the recess.

Fixed to the shaft 6 between its bearings is a block 8 provided with cogs 9, lO, and a bolt ll having an upwardly projecting pin 12 actuated by the spring 13 and cam groove S and adapted to engage a recess in the rear edge of bearing 7. The spring 13, is short and its only mission is to move the locking bolt l1, far enough to engage the stud 12, with the cam-groove S, as the needle retreats.

Near the front end of the knotter bar C, and at one side of the knotter-head Y is pivoted aniupwardly extending stud oriinger 14 and integral therewith. is a trigger l5, the same being retained normally by tension of a pocketed spring 16 in such position that the stud 14 may be engaged by the under side of pivoted knotter jaw 2 for the purpose of opening the latter as shown by Fig. l2, and disengaged through the medium of triggerl.

Near the central rear side of guard-plate X is pivoted take-up arm I7 provided with depending stud I8 just beyond which, said arm makes a right angular bend and terminates in a barbed hook i9 overlappin g the end of plate X. The rear extremity of arm 17 is provided with a horizontally moving bellcrank lever having arms 2O and 2l the latter being in contact with leaf spring 22 by which said arm is retained in a closed position, though permitted to make a lateral movement when in the operation it becomes necessary as shown by Fig. 10. Still nearer the end and on the rear side of plate X is journaled a rock-shaft 23 carrying a vertically moving bell-cran-k lever 24 one arm of which engages a stout leaf-spring 25, and the other is adapted to be engaged by arm 2O of the bell-crank 20 2l, for the purpose of overcoming the press- To the opposite or outer end of shaft 23 are permanently secured the cord-clamping and cutting mechanisms; the former consisting of a trough IOO IIO

shaped clamping jaw 26 arranged to inclose a downward projecting flange 27 formed by an angle in the end of guard-plate X; and the latter a knife edge 28 securedl to the outer side of clamping jaw 26, which, together with a similar cutting edge 29 located on the outer side of fiange 27, constitute a pairl of shears. Discharging arms 30 are 1on1-Illy journaled on shaftD at either side of the needle-bar B, and a Y shaped connecting rod 3l joins them by hinge joints to a depending arm 32 rigidly secured to a rock-shaft .33 having bearings in brackets 3l near the upper ends of standard A4 and brace All.

To the front end of shaft 33 is attached a lever 35 the long arm of which is operated upon bya spring 36, a counter-weight or other mechanical equivalent, to elevate the discharging arms 30; while the shrt arm of said lever is provided with an operating rod 37 having a terminal hook 3S riding on internal track J of wleel I, and periodically engaging lug or projection K thereon for the purpose of castingoii` a bound sheaf of grain, after which sa'id hook frees itself from lug K when the latter in the course of its movement assumes an angle to allow spring-36 to exert its power upon rod 37 for the purpose of returning same to its normal position.

The platform A2 is provided with a recess in size about equal to knotter-bar C for the purpose of allowing the latter when at its lowest point to sink nearly flush with its surface` And the sidewalls of recess a: in the knottenbar C, are cut away near their outer ends thusallowing the needle to pass freely beneath that end of guard plate X. The side of such cut-away portion which the needle first enters is beveled as at 39 to facilitate an entrance should the needle and knotterbars be not irmlyseated. However to insure .a proper joint between said bars B and C, the latter is provided with a V shaped recess 40 and the former with a corresponding projection 4l, by which arrangement the parts are directed and when closed areheld in their proper relative positions, while 'adjacent to projection 4l on the lower front edge of bar B is a beveled or cut away portion for the express purpose of allowing lever 15 to retreat when acted upon by the point of needle V.

The arrangement of parts being substantially as shown and described the operation of my invention is as follows: Binding cord from a reel or receptacle secured in any convenient position is led through eyes on the needle-bar to the needle, and entering circumferential groove p in the latter passes through eyelets q, the eye of the needle o", and

from thence to the cord-clamp 26 where the end is held. Wheel l is revolved continuously from left to right by power from the driver wheel of the harvester applied through the agency of cogs d or in any other suitable manner Delay shoe i of pinionM in the meantime rides upon delay-surface L of wheel I until the adjacent cogs g are reached;.when the first of pinion teeth h drops into gear with said cogs g, and power is communicated to the cranks j, lo, which, operating through the-intervening rods and arms before derectio'm the'cranksj, and 7c, (in the present instance) are constructed in one plane.

'ffilnamachine of a high frame, as the one shown inlthe .drawings 'the cranks j, and-k,-

scribed, rock shafts D and E in opposite di can be constructed on one plane, butin a machine of a low frame, and with the arms F, and G long, to attain more power, which would bring their free ends close to each other or even past each other, the planes of the cranks.

j, and lo should be constructed on dierent planes accordingly, so as` to operate the needle bar ahead of that of the knotter bar. Needle V having beenl withdrawn to the position shown in Figs. 5, and 8,and the knotter being in the position shown in the sameviews, the needle bar retreats slightly before the knotter bar starts and the needle having thus carried the cord y below the knotter head Y ascends with the needle bar B, and the parts assume the position illustrated by Fig. Lthe cord extending from the cord-clamp out under the knotter and thence to the needle. Grain is now fed to the binder automatically or by hand the eifect of which. isto lay a continuation of cord 'y back over the knotter-head as at fg. The needle bar B, descending, moves in advance and the knotter bar t meets the needle bar B at the moment that the crank 7c, (operating said knotter bar) passes its dead center, thus the grain is finally compressed by the knotter bar; which being operated by the long arm Grhas ample power for that purpose. Thus the gavel to be bound is gathered, is encircled by a loop of binding cord marked y2, and the point of the needle passing below the gavel, and above the knotter-head Y, places the cord again across the knotter as shown at ys Fig. 5, when the needle and knotter bars are in a closed position. At this point in the operation pinion M, controlling the 'needle and knotter bars, is delayed by its shoe 1l engaging the delay surface L of master-wheel I. The pinion P then goes into action being started by the first of its teeth n coming in contact with the first of slightly raised cogs e on the rear of wheel l, and through intermediate connections before described, the needleV is projected' forward passing its cord beneath the end y, as shown by Fig. 6. Entering thus below guard-plate X, groove s on under side of needle V throws bolt 1l by engaging its pin 12 and the knotter is unlocked. The cord being formerly drawn by the needle around below the knotter, and pressed back and upward over the knotter by the grain, and drawn firmly around said gavel to be bound will tend to draw or turn the knotter upward to a vertical position from' its original or inverted position; the position of the cord on the knotter is always to turn the knotter' to a vertical position or to a right angle to its.

- ter is thus turned upward by the cord, the

teeth 9, 10, on the block 8, are engaged with Lillie teeth tontheunderside of the needle,

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and as the needle advances' the knetter is turned over or inverted, and with it the cords 'y' and ys; thus the position et the knetter is reversed at the first forward movement of the needle, and held in saidA position by reason of the needle being in contact with the flat side of the block S. The pivoted jaw 2, engaging the stud 14, is opened as shown in Fig. 12.' At this position the cord y iS above, resting n the transverse notches 3, 4, and the cords y and ys cross the knetter below. In this position with its jaws ajar, and level with the plane of the needle, it waits for the latter to deliver the cord within its jaws. A slight further movement of the needle causes it to move against the trigger 15, and through it, trips stud 14, allowing the pivoted jaw 2 to close on cord g4 as seen in Fig. 7.. In so closing notch 3 on the j awA 2 serves to carry cord 'y-which togetherwith cord y forms a' loop around the knetter-forward toa peint where said loop readily slips 0H the knetter, when reversed, over a loop formed by the cord y4 around the extreme end of the rigid' jaw as the needle retreats; the cordfrom around the sheaf being around beneath the knetter will tend to draw the knetter upward and as the needle retreats the cogs uen theunder side of the needle are engaged by the cogs 9, 10, on the block 8, turning the knetter to its original position, and as the point of the needle carrying the cord g4 passes below the guarde: iinally draws the cord g4 firmly in the cord clamp and shears, as the needle nears its homeward movement asl shown in Fig. 8. Switch W then engages stud 18 which is thereby conducted to the back of needle V the cam-like ferm of which serves to open the take-up-arm 17 as shown in Figs. 8 and 10, and hook 19 having caught cords y and if* the loop formed byparts y y is drawn taut around the loop formed by parts g4. A still further movement serves to engage bellcrank lever 24 by arm 2O of bell-crank lever 20--21, rocking the shaft 23 and opening the cord-clamping and cutting mechanisms and withdrawing the end of cord y at the same time cord g4 is drawn more snugly into the shears. The tooth throws the knetter over on the advance movement, before the point of the needle reaches the vertical plane of the knotter, and the needle then continues to advance at the same time laying the cord over the rigid jaw, until the point of the needle is considerably past the knetter and until the tooth u also passes the teeth 9 10, on the block 8. This permits the teeth u to throw the knetter back at the beginning of the retreat of the needle so that the cord now passes below the rigid jaw of the knetter. The pin 12, is pressed toward the needle by the spring 13,

.and thus caused to engage with the groove s,

and is then operated upon by groove sin the needle toithrow` bolt 1l as before, and the knetter is again locked; the stud 18 then reaches switch W of the needleand is freed fromengagement therewithl and springs elf?,

25 exerting their force upon the cuttingl and clamping mechanism sever cord y, one end thereof being firmly retained, while the other is drawn through the jaws of the knetter leaving the cerdas shown by full lines in gathering arms secured to said shafts, oscillatory discharging arms journaled on said upper shaft, a binding mechanism carried by the gathering arms, and a master wheel with intermediate connections for operating the 'gathering and discharging arms.

2. I-n a binding attachment for harvesters, the combination with oppositely arranged pivoted gathering arms, of a binding mechanism carried by the gathering arms, oscillatory discharging arms, a rock-shaft having a dependent arm connected with the discharging arms, a lever secured to said shaft, an operating rod attached to the lever having a hookedv lower end, a master wheelhaving an internal track obstructed by a lug adapted to be periodically engaged by the hooked rod, and a spring for returning the gathering arms to their normal. position.

3. In a binding attachment for harvesters, the combination of a knotting mechanism, a hooked take-up-arm havinga depending lug, aneedle4 having a switch normally projecting at an angle to its edge and adapted to engage the lug on said take-up for the purposeof opening it, a spring for returning the latter toits normal position, and suitable means for operating the needle.

4. Inaknotting mechanism for grain binders, the combination with a frame, of oppositely moving gathering needle and knetter bars, one carrying a pivoted needle, and the other a knetter, upper and lower rock-shafts to which said needle and knetter bars respectively are secured, upper and lower operating levers of unequal length, connected to the rock-shafts, the former being the shorter, rods connected-.to the levers, a double crank shaft the arms of which are connected with said rods, a pinion mounted upon the latter shaft, and a master-wheel with which the pinion periodically engages whereby the gatherarranged to place the movement of the nee- Fig. 9, and the bound sheaf is then removed vers of unequal length, oppositely moving ing needle and knetter bars are operated, all.

Therefore I by no IOO IIO

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dle-bar ahead ofthe movement of the knetter' bar, a knetter journaled in the knotter'bar,y j with its free endabove the plane of the nee-4" die when the needle bar and knetter bars are closed and the knetter in its normal position, and a cord carrying needle pivoted on the needle bar, said cord being clamped on the knetter bar-and taken out beneatlrthe knotter substantially as described.

5. In a knetting mechanism fergrain binders the combination with a frame, of oppo- Y sitely moving gathering needle and knetter bars, one carrying a pivoted needle, and the other a knetter, upper and lower rock-shafts to which said needle and knetter bars respectively are secured upperand lower-operating levers of unequal length, connected to the rock-shafts, the former being the shorter, rods connected to the levers a double crankshaft arms of which are connected with said 'rods,a pinion mounted upon the latter shaft,

and a master-wheel with which the pinion periodically engages, whereby the gathering needle and knetter bars are operated, all arranged to place the movement et the needle bar, ahead of the movement of the knetter bar, a cord receiving shearing and clamping mechanism on said knetter bar a knetter' journaled in said knetter bar, with its free end above the plane of the needle when the needle bar and the knetter bar are closed and the knetter in its normal position a needle to deliver a cord to saidknotterbarand carry said cord out below the knetter, and means to operate said needle as described.

G. In a knetting mechanism foi-grain binders, the combination with a frame, of oppositely moving gathering needle and knetter bars, a cord clamping and cutting mechanism on said knetter bar, and a knotterjournaled in said knetter bar a needle journaled on the needle bar, having its pivot arranged transverse to the axes of its supporting needle bar, and adapted to carry a cord and to operate on the knetter, and operating mechanism to operate the needle,and` oscillate the needle, and knetter bars substantially as shown and described.

7. In a knotting mechanism forgrain binders, the combination with a frame, of oppositely moving gathering needle and knetter bars, upper and lower rock-shafts to which said needle and knetter' bars respectively are Secured, a guard plate carried by said knetter bar, projecting with its free end over the knetter shaft te near the knetter, a cord clamp and shears on the free end of said guard plate, a knetter j ournaled in said knotter bar, and a needle journaled on the needle bar, having its pivot arranged transverse to the axis of its supporting bar and adapted te carry a cord, and to operate on the knetter and cord clamp operating mechanism substantially as described.

8. In aknotting mechanism for grain binders, the combination with a frame, of oppositely moving gathering needle and knetter bars, upper and lower rock-shafts to which said needle and knetter bars respectively are secured a guard X en the knetter bar proj ecting with its tree end over the knetter shaft to near the knetter, a cord clamp and shears ou the free end et said guard, a knetter journaled in said knetter bar, -a cord carrying needle journaled on the needle bar, having its pivots arranged transverse to the axes of its supporting arm, and adapted to operate in a plane parallel to one side of the sheaf, te operate en the'knotter, and means to'eperate said needle substantially as described.

9. In a knotting mechanism for grain binders, the combination with a knetter j eurnaled in a knetter bar, a guard plate en said knetter bar, a `cord clamp on said guard plate, a needie pivoted near the center of its curvature en a supporting needle bar, having its pivot arranged transverse to the axis of its supporting arm, and vadapted to operate the knetter, and means for operating said needle asgdescribed.

I0. In a knotting mechanism for grain binders, the combination with,a knetter journaled in a knetter bar, a guard plate on said knetter bar, projecting with its free end to near the knetter, a downward projection 27 on said guard plate X, a rock shaft 23 journaled in said guard plate clamping jaws secured to said rock shaft, a bell-crank 24 en said rockshaft engaging a bell-crank on the pivot of the take up; a spring 25 to close the cord clamp, a needle piveted on the needle bar to operate the knetter and take up, and means to operate the needle, as and for the purpose described. f

1l. In a knetting mechanism for grain binders, the combination with a knetter journaled on a knetter bar,gnard plate X on said knotter bar, projecting with its free end to near the knotter,adownward projection 27 on said guard plate X, a rock shaft 23 journaled in said guard plate clamping jaws secured to said rock shaft, a bell-crank 24 on said rock shaft engaging a bell-crank on the pivot of the take u p, shears secured en said cord clamp having one blade secured to the pivoted jaw 26 with the other blade secured to the end et the guard plate X, springs to close said cord clamp and shears, a needle pivoted on the needle bar, to operate the knetter and take up, and means to operate the needle, as and for the purpose described.

12. In a knotting mechanism for grain binders, the combination with a knetter having a shaft journaled in the knetter bar, a block 8, on said shaft, having two [iat sides, cogs 9, 10, on the narrower edge, a guard plate X projecting over said block 8, a locking bolt in said block, having a stud projectingthere-A from, a needle pivoted en the needle bar teeth t, and u on said needle to operate said block IOO IIO

8 a switch te operate the locking bolt, and

in said bleek having a stud projecting therefrem,a spring 13 to move said studinte the cam groove s ef the needle for Ithe purpose 5 described, a needle pivoted en the needle bar teeth t and u. on saidneedle, cam groove s in the needle to operate en the stud of the lecking bolt 11 and means to operate the needle, as described.

14. In aknetting mechanism forgrain binders the combination with a knottershaft journaled in the knetter bar, a bleck'on said shaft,

pivoted in said guard plate, said cord clamp 6o projecting downward when opened and partly closing the passageway between the free-end of the guard plate and knetter bar, a cord carrying needle pivoted on the needle bar, and means te operate said needle, as described.

18. In aknotting mechanism for grain binders, the combination with a bleek ou the knotter shaft a needle pivoted near the center of its curvature te the needle bar, having its pivot arranged transverse te the axis ef its needle bar, depressed teeth t, and u, and a cam groove er switch s en said needle to oprerate en the locking bolt 11, in the block and teeth 9, l en the block and engaging teetht and u to operate the knetter for the purpose 75 described.

. 19. In a grain binder the combination of a knotterhavinga rigid jaw adapted te be closed by a spring and opened by a stud interposed in the path of the pivoted jaw 2, said knetter being provided with a notch L1 on the rigid jaw 1, to hold the cord, a notch 23,011 the pivoted jaw in position to register with the notch 4 when the jaws are open, the lower surface of the notch 3 being flush with the upper surface of the notch 4 te carry the cord out of the notch 4 as the pivoted jaw 2 is being closed, for the purposes described.

In testimony whereof I have ailixed my signature in'presence of two Witnesses.

GEORGEv SCHUBERT.

a knetter secured to the free and projecting end of said knetter shaft, pivoted jaw on said r 5 knetter,normally closed bya spring, the pivot of said-pivoted jaw being arranged parallel j with the pivot of the knetter, a stud'intert posed in the path of the pivoted jaw te be engaged by said jaw, for the purpose of opening ze said jaw, a cord carrying needle pivoted en a l needle bar having its pivot arranged transverse to the pivot et' the knetter, to operate said knetter, and means te operate said necdle, as described. v

15. In a knetting mechanism for grain binders, the combination with a knetter j ournaled in the knetter bar the pivoted jaws-on said knetter having its pivot parallel with that of the knetter, said pivoted jaw being normally 3o closed by a spring, a pivoted stud 14, interposed in the pathot the pivoted jaw te be f V engaged by said jaw, for the purpose of open ing said jaw, a trigger' 15 to trip said stud, a

spring te return said stud to its normal pesi- 3 5 tion, a cord carrying needle pivoted en a needle bar, having its pivot arranged transverse tothe pivot of the knetter, te operate said knetter and means to operate the needle as described.

16. In a knotting mechanism forgrain binders, the combination, with a knetter4 journaled in the knetter bar, a jaw on said knetter with its pivot arranged parallel with the knetter shaft, a stud 14 to engage with said jaw as the knetter is inverted, means to disengage said stud from said jaw, a guard plate projecting over the knetter shaft, a cord clamp Witnesses;

D. I-I. MAC-GARD, C. E. PEs'rEBIEDE.

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