US452843A - Grain-binder - Google Patents

Description

4 sheets-sheen 1. A P. HANSON. GRAIN BINDER (No Model.)

No. 452,843. Patented May 26,1891.

4 Sheets-Sheet 3. P. HANSON. GRAIN BINDER (No Model.)

Patented May 26, 1891.

(No Model.) 4 Sheets-Sheet 4.

P. HANSON. GRAIN BINDER.

No. 452,843. Patented May 26, 18N.

@k-eww.' W l p /f/WM @zum @f/ZW i NrTnn STATES APATENT FFICE.

PAUL HANSON, 0F ST. PAUL, MINNESOTA.

GRAIN-BINDER.

SPECIFICATION forminglpart of Letters Patent No. 452,843, dated May 26, 1891. 1

Application filed July 14, 1886. Serial No. 207,977. (No model.)

T0 all whom t may concern:

Be it known that I, PAUL HANSON, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesoia, have invented certain new and useful Improvements in Grain-Binders, which are fully set forth in the following specification, reference being had to the accompanying drawingsg forming a part thereof.

The purpose of this invention is to simplify the construction of the cord-knotting mechanism of grain-binders; and it relates to the construction and operation of both the cordlooping device, commonly called the bill, and the cord-holder, which I give also an adadditional new function.

In the drawings, Figure 1 is a perspective View from the front inner quarter, the parts being in the position of rest in the intervals of binding. Fig 2 is a similar view with some parts broken away, showing the parts in position after the needle has laid the second strand over the looper and into the holdernotch and the looper has made one-quarter revolution. Fig. 3 isa similar view with some parts broken away after the looper has made nearly one full revolution. Fig. 4 is a rear elevation showing theposition afterthelooperhas made one and three-quarters revolution. Fig. 5 is a perspective from the rear inner quarter, showing the position of the parts when the looper has made'one revolution and the cord is about to be severed. Fig. 6 is a direct sectional plan of the breastplate and holder. Fig. 7 is a reverse plan of the same parts. Fig. 8 is a perspective of the cord-holder segment and' its rock-shaft separated from the remaining mechanism. Fig. 9 is a perspective of the cam on the cord-holder rock-shaft. Figs. 10 and 11 are perspectives of a form of the cordholder cam slightly modified in order to render it adjustable on the cord-holder rockshaft. Fig. 12 is a perspective of an intermediate piece used in making such adjustable connection. Fig. 13 is a detail plan of the holder and clamp and the holder-actuating cam. Fig. 14 isa sectional elevation of the saine parts, the section being taken at the line 0c x on Fig. 13 and the View looking in the direction indicated by the arrow-head, the looper and the needle being also partly shown with the cord, the position of the parts being as at the commencement of the knot. Fig. 15 is a discharge side elevation of the holder and clamp and actuating-cam. Fig. 16 is a detail plan of the clamp, the cutter being also shown in dotted line. Fig. 17 isa detail plan of the holder and its actuatingcam and rock-shaft. Fig. 18 is a detail plan of the clamp and part of the holder and the cutter, the position being as at the finish of the knot. Fig. 19 is a perspective of the looperpinion detached.

A is the breastplate, which is illustrated and preferably constructed integral with the frame which has the bearings of the knotter mechanism, commonly called the knotterframe. I have claimed such integral construction in my application now pending, filed August 13,1885, Serial No. 174,275. The said knotter-frame comprises the hangerA,which terminates at the upper end in the sleeve A10, which is placed on the main shaft of the binder B, which thereby sustains the knotterframe and mechanism in the customary manner.

C2 C3 is the cord-looper or knetter-bill. It is journaled in the lugs A11A12 on the hanger A', having between said lugs the mutilated pinion C', whereby it receives motion from the knotter-actuating wheel D, as more fully hereinafter explained in detail.

E is the cord-holder. It is xed on the inner end ot' the short rock-shaft E, whichis journaled in the knotter-frame parallel to the main shaft of the binderB below the knotteractuating wheel Dwand extends beyond the planes ot' both faces of said wheel and has rigidly fixed to it at its outer end the cam E2, which is engaged by suitable devices on the front face of the wheel D, as hereinafter explained, and thereby communicates miotion to the cord-holder. The said holder E is in form substantially a sectoral flange on the rock-shaft E and in action a lever-arm of said shaft. At its outer periphery it has the lateral flange E10, which is the arc of a cylinder Whose axis is that of the rock-shaft E. Said fiange E10 has the notches e100, alternating with the-teeth or lugs E100 and E101 for the purpose of engaging the cord, as hereinafter explained. The Ijange E10 is extended inward and expanded laterally on both sides of the plane of the sectoral ange of the holder IOO and forms the lip or blade which, from its function, I call the cord-bridge7 E111. Said holder, besides the lateral lianges, has also the lugs E12 E13 projecting laterally on the same side as the flange E10, but within the arc of the latter, to serve purposes, respectively, which will hereinafter be explained.

F is the cord-holder clamp, which is in the usual saddle form, having the lips or wings F F2, forming between them the groove F3, in

which the holder-flange E10 reciprocates andby its teeth or lugs E010 and E10l carries the cord. The clamp is pivotcd on the lug A12 of the knotter-frame, and is thereby adapted to oscillate toward and from theholder to clamp the cord more or less closely, and the spring F4 is placed back of said clamp between it and the lug`A13 on the frame to force the clamp yieldingly toward the holder-flange E10. The screw F40, set through lug A13 against the spring F4, serves to regulate the pressure of the latter upon the clamp, as found needful.

To the upper side of the cord-holder clamp is secured rigidly the cord-cutter or knife G. It is fastened to the clamp by a screwg and rendered more secure by a slight projection g from the clamp g, which stops the cutter from turning on the screw g. This cutter is an L-shaped blade, of which the arm Gr projects across the vertical pla-ne of the cord above the upper lip F of the clamp, and has the edge sharpened by being beveled on the under side.

The looper-pinion C has the delay-surfaces 010 C11, and the Wheel D has on its rear face the longer gear-segment comprising` two partsD and D2, separated by ashort delay-su rface d and a shorter segment D10 and two delay-surfaces d2 and d10, separating said gearsegments, which cause the pinion C to make two full revolutions in three stages separated by intervals, for purposes which will fully hereinafter appear.

The holder-cam E2 comprises two arms E20 and E21 of the nature of lever-arms of the rock-shaft E and has formed on it also two gear-teeth e2 and 620. The wheel D has on its forward face the incomplete annular flange D3, which forms a delay-surface for the/cam E2, and at the interval between the ends of said incomplete flange the said wheel has two teeth d3 and (130 and at one end of the flange the stud and roll D4, which engage the cam and its gear-teeth, as hereinafter explained.

The looper C has the customary rigid jaw C2 and the vibrating jaw C3, provided with a heel carrying the roll c3, which is engaged by the cam -surface a on the frame A and causes the jaws to open at proper time.

K is a spring secured to the bearings of the looper C andl projecting downward into position to engage the roll c3 on the outside and force the jaws shut at proper time. This spring, as will hereinafter appear, is merely precautionary, and is not needed for the purpose when the knotter is in actual operation with the cord. The upper vibratin g jaw C3 is made longer than the lower rigid jaw and projects beyond it and is curved or hooked downward over the end of said rigid jaw. The purpose and effect of this extension are hereinafter explained. Said upper jaw has also a barb e30 on the under edge for the purpose of assistingthe process of putting the end of the cord through the loop in finishing the knot.

H is the forward discharger, which is secured rigidly to the shaft B in front of the sleeve A10.

H' is the rear discharger, secu red to the rear face of the wheel D.

J Jare bundle-strippers, for which the loopsockets ASA3 are provided on the breastplate, said strippers beinginserted through the tops and secured at the inner end by the removable bolt or pin J to the lugs A4 A4 on vthe breastplate. Vhen not in use, in order to reduce the compass of the machine, the bolt J being' Withdrawn, the strippers J J may be removed, and, if desired for convenience, they may be fastened again to the lugs A4 by reinserting the bolt, but Without being inserted through theloops. They willthus hangdown out of the Way.

L is the needle.

The operation of this mechanism is as follows: The parts being in the position of rest shown in Fig. l, one end of the cord secured in the holder and extending thence from the notch e100, over the lug E12, under the lug E13, thence inward over the looper-jaws, and down to the point of the needle, the binder being tripped into action, the needle rises, encircling the gavel, and lays the second strand of cord Y over the looper-jaws, thence onto the upper edge of the lugs E13 and E100,respectively,which by their slope cause it to slip past them and rest on the lug E12 and in the notch e100 and across the ends of the lips and slot F', F2, and F3, respectively. The gear-segment D on the wheel D now comes into engagement with the pinion C and revolves it to the position shown in Fig. 2. During the first part of this action the holder E has been held in the position of rest shown in Fig. l by the engagement of the arm E21 of the cam E2 with the delay-surface or ange D3 on the rearface of thewheel D, the position of the cam being as seen in Fig 4;, but at about the instant at which the looper began to be revolved by the gear-segment D the tooth d3 on the rear face of the wheel D became engaged between the teeth e2 and 620 of the cam E2 and rocked the holder on the rock-shaft E, carrying the lug E of the flange E10 toward the jaws of the holderclamp F, as seen in Fig. 2, and as the looper continues itsrevolution to the position shown in Fig. 3 (the jaws of the looper being meanwhile opened by the engagement lof the. roll c3 with the cam af) the holder is further rocked by t-he still-continuing engagement of the tooth d3 of the wheel D between the teeth e2 and 620 of the cam E2, and the lug E100is forced between the lips of the holder-clamp and se- IIO kan

curely binds both strands of the cord therein. The same movement of the holder brings the bridge E111 inward against the cords between the looper and the bundle. This position is shown in Fig. 3. The bridge E111 by thus obstructing the cords at this stage prevents the loop from being pulled out of the looperjaws, as would be liable to occur without such preventive, because the weight of the bundle tends to draw the cords off while the bill is pointing outward, and at a little later stage the pressure of the dischargers increases the same tendency. The movement of the holderflange between the lips of the holder-clamp, as just described, also carries the cord toward the knife G; but it is necessary to guard against cutting the cords at this stage, and for that purpose the lug E12 is provided, projecting from the flange E at a distance from the flange E10 sufficient to bring it above the knife G when the last-described movement of the holder occurs, so that, as seen in Fig. 3, the cord by lying over it is held off from the edge of the knife so long as the holder occupies that position. The looper, continuing its revolution, takes the ends of the cords between the open jaws, and after it passes again the position at which it started, as seen in Fig. l, the roll c3 runs off the cam d and allows the jaws to close, the strain of the cords over them compelling them to close as soon as permitted by the release of the roll e3 from the cam. As the revolution of the looper continues toward the position shown in Fig. 4, the tooth (130 on the rear face of the wheel D engages the tooth e2 of the caln and further rocks the holder, carrying the lug E12 from the position where it has been guarding the edge of the knife G, and so uncovering the latter and bringing the lug E13, which has a fiat under face and a sharp or angular corner @13, close over the edge of the knife and causing it to sever the cord. The cord at this stage being folded over the edge of the knife and being subjected to the strain due to the revolution of the looper, which is Winding u p the cord around its shank, would be severed without the co-operation of the lug E13;'but as a precaution in case the knife is dull I prefer to use said lug, and so get the shearing effect described. The cord now being severed and the loops fully formed on the looperjaws, the knot is ready to be stripped off, and while the looper is making the second and third quarters of its second revolution the cam-roll D1 on the rear face of the Wheel D engages the long arm E20 of the cam E2 and rocks the holder back to the position shown in Fig. 4t, (the position of the holder in that view being the same as in Fig. 1,) and thus withdraws thebridge E111 from the path of the cords. The discharger is now in position to act on the bundle and press it outward, and the looper having reached the position pointing outward (see Fig. 4) the said pressure of the discharger draws the loops off the jaws and completes the knot.

During this last action the looper is held stationary by the engagement of the pinion with the delaysurface (Z2 of the wheel D, and after the discharge has been effected the gear-teeth D10 engage with the pinion and complete its second revolution and bring it to rest in the initial position, with its jaws standing across the plane of the path of the needle, as seen in Fig. l.

Reviewing the above action, the following peculiarities should be observed: The movement of the holder to enter the clamp occurs simultaneously with the first revolution of the looper, and said movement ofthe holderbeing toward the looper affords to the looper the cord necessary to form the loop. This may be most easily understood by comparing the position of the cord in Figs. 2 and 3 and noting how much nearer to the looper is the lug E12 in the latter than in the former figure. The under wing or lip F2 of the holder-clamp has the tooth f2, which engages the cord as soon as it is pushed past it by the tooth of the flange E10 and prevents the end of the cord from being carried out of the clamp by the reverse movement of the holder.

The location of the teeth cl3 and CZ00 of the wheel D is such that the movement of the holder caused by the first ceases and leaves the holder stationary for an instant before the second engages the cam-tooth e2 and further rocks the holder. This interval is that in which the lug E12stands, covering the edge of the knife G, and the looper is making the last quarter of its first revolution. This is the time When the jaws are receiving and closing on the ends of the cord andare revolving away from the holder. The holder, being stationary, is yielding no cord to the looper, and the strain on the cords therefore caused by the revolution of the looper away from the holder tends to close the jaws, as is desired at this stage, and the cam a permitting the jaws to close they in closing yield as much cord as is required by the revolution of the jaws away from the holder. Vvvhen the jaws are closed, no more cord can be yielded by them, and at this point the short delay-surface d in the midst of the gear-segment D D2 reaches the pinion C', and the latter halts in its motion for an instant, and at that instant the tooth d30 on the rear face of the wheel D, engaging the tooth e2 of the cam E2, moves the holder a short distance and causes it to yield a little cord; but the cord being by .that slight movement brought to the edge of the knife the further movement of the holder at once takes up the little slack thus caused and it forms the bight of cord folded over the edge of the knife. The short delay-surface d havingv passed the pinion, the gear-teeth ofthe segment D2 again engage the pinion C and revolve the looper, which, Y having no slack cord to draw upon, pulls the bight of cord which lies over the knifeedge against said edge, as above described. The form of thelooper-jaws is adapted to dis- IOC IIC

pense with any necessity of a spring to close them when the machine isin actual operation with the cord. The upper jaw is elongated, so that its point hangs over the end of the lower jaw, and when the loop is being stripped off by the pressure of the dischargers against the bundle the loop which encircles the jaws clears the lower jaw before it clearsthe upper jaw, and the weight and pressure of the bundle are then wholly exerted on the upper jaw to hold it down on the lower jaw, thereby preventing the escape of the ends of the cord from between the jaws until the knot has been pulled tight. If by reason of the wearing of the barb on the vibrating jaw or for any other purpose the strain of the cord over the jaw should not be sufficient to insure the ends being held while the loop is stripped off, such deficiency shall be supplied by the spring.

The flange E10 has, besides the tooth E100, whose action has been described, a shorter tooth E101, which, when the holder is retracted, engages the looser end of cord, and at the next forward movement of the holder discharges the same from the clamp.

The cam E2 may be connected to the rockshaft E by means of the arm E3, which is suitably'made rigid on the end of the rockshaft and has near the end the slotted hole E20, through which the clamp-screw E31 is set into the face of the cam E2, and, being loosened, permits the adjustment of the cam to the limit of the slot E20.

I claiml. In combination with the needle and the looper, a cord-holder pivoted to the knotterframe on a pivot parallel to the needle rockshaft, and thereby adapted to oscillate in a plane parallel to the vertical plane of the needle, and having a notched flange projecting laterally across such plane, and the clamp secured to the knotter-frame and standing adjacent to the path of oscillation of the flange, whereby it co-operates therewith to hold the cord,substantially as set forth.

2. In combination with the needle and the looper, a cord-holder pivoted to the knotterframe on a pivot whose aXis is transverse to the plane of the path of the needle, said holder heilig located in the vicinity of the looper-spindle, whereby it is adapted to oscillat-e toward and from the looper, and a clamp secured to the knotter-frame and located adjacent to the path of oscillation of the holder, whereby it co-operates therewith to hold the cord, substantially as set forth.

3. In combination with the needle, the looper, and the wheel which actuates the latter, the cord-holder formed as an arm of a rock-shaft journaled parallel to the needle rook-shaft and which has another arm engaged by suitable projections on the looperactuating wheel, said cord-holder having a lateral flange projecting into the plane of the path ofthe needle, and a clamp co-operating with the said flange to hold the cord.

Li. In combination with the looper-actuating wheel D, the cord-holder rock-shaft eX- tending transversely to the vertical plane of said Wheel and having the holder rigid with it located on one side of said plane, and having on the other side an arm which is engaged by the wheel D to actuate the holder rock-shaft and holder, substantially as set forth.

v5. In combination with the needle, the looper, and the wheel which aetuates the latter, the cord-holder clamp secured on the knotter-frame, the cord-holder having a rock-shaft journaled parallel to the needle rock-shaft and having a cord-engaging flange which cooperates With the clamp to hold the cord, and means, substantially as set forth, whereby the looper-actuating wheel rocks the holder positively in both directions.

(i. In combination with the needle and the looper, the cord-holder pivoted to the frame on a pivot parallel to the needle rock-shaft and located in the vicinity of the looper, whereby it is adapted to oscillate toward and from the axial line of the looper, and having an inward extension, as E111, expanded across the vertical plane of the needle and forming an obstruction across the path of the cord under the looper, substantially asset forth.

7. In combination with the cord-holder vibrating in a plane parallel to that of the needle and having the lateral flange notched to engage the cord, the stationary holder-clamp having its flange or lip provided with a tooth f2 to detain the cord during the retraction of the holder, substantially as set forth.

8. In combination with the vibrating cordholder having the notched flange to engage the cord, a clamp striding said flange and the knife rigidly secured to one lip of the clamp, said holder having a lug, as E12, projecting therefrom in position to vibrate over 1the edge of the knife, substantially as described.

9. In combination with the cord-looper, the needle, and the mechanism which revolves it twice for each complete action of the binder, the cord-holder having its rock-shaft journaled parallel to that of the needle and having the extension E111, forming an obstruction to the cord, and mechanism, substantially as described, which rocks the holder which moves and holds said projection between the looper and the bundle while the formeris receiving the cord between its' jaws, substanfially as set forth.

10. In combination, substantially as set forth, the needle, the looper, the wheel which actuates the latter, the cord-holder reciprocating in a plane parallel to the plane of the needle toward and from the looper, the stationary clamp co-operating Wit-h the holder, the looperstanding at rest, with its jaws transverse to the vertical plane of the needle, and the mechanism which moves the holder toward the looper while the latter makes one revolution, whereby the holder grasps the IOO IIO

cords and yields slack for the looper by the same movement.

11. In combination with the reciprocating cord-holder having the lateral notched flange E10 and the laterally-projecting lug E12, the stationary holder-clamp having rigid with it the knife G, located between the path of the lug E12 and that of the flange E10, substantially as set forth.

l2. In combination, substantially as set forth, the Wheel D and the holder having the rock-shaft parallel to that of the Wheel, the former having the gear-teeth d3 C230 and the lattgfr having the arm provided with the teeth e e 13. In combination, substantially as set forth, the Wheel D and the holder having its rock-shaft parallel to that of the Wheel, the

former having an abutment, as the stud and roll D4, and the latter having the cam provided With the arm, as E20, whereby the rockshaft is rocked in a direction opposite to that in which the Wheel revolves.

14. In combination with the breastplate having the loop-sockets, as A3 A3, the stripperarms relnovabl y inserted through such sockets and detaohablyvsecured to the breast-plate, substantially as set forth.

In testimony whereof I have hereunto set my hand, this Sth day of July, A. D. 1886, in the presence of tWo Witnesses, at St. Paul, Minnesota.

PAUL HANSON.

Witnesses:

J. H. RANDALL, A. J. GALBRAITH.

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