US757127A - Cord-knotter. - Google Patents

Description

PATBNTBD 11111.12, 1004.

E. M. KELLOGG. CORD KNOTTE-R.

APPLIOATION FILED JULY 23.1000.

WWF

/NYEN Ton N0 MODEL.

H/S A T (ORA/Ears PATBNTBD APB. 12, 1904. 1

' B. M. KELLOGG.

CORDv KNOTTBR.

APPLIGATION FILED JULY 23, 1900.

N0 MODEL. v

3 SHEETS-SHEET 3.

vcommenced their movement.

UNITED STATES,4

Patented April 12, 1904.

lPATENT OFFICE.

EDWIN M. KELLOGG, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-HALF TO WILLIAM O. THOMPSON, OF CHICAGO, ILLINOIS.

CORD-KNOTTER.

SPECIFICATION formingpart of Letters Patent No. 757,127, dated April 12, 1904.

Application filed July 23, 1900.

To all whom it may concern,.-

Be it known that I, EDWIN M. KELLOGG, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Cord-Knotters. of which the following is a specification.

The purpose of this invention is to provide a cord-knotter for grain-binders which while adapted and having some advantages for use with any sort of binding-twine is by reason of the speciiic features ofconstruction especially adapted to overcome some difficulties encountered in the use of grass twine.

Figure 1 is a rear side elevation of a knot-` ter embodying my invention, comprising in the View the breastplate and a portion of the parts of the binder which sustain it. Fig. 2 is a section at the line 2 2 on Fig. 1. Fig. 3 is a section at the line 3 3 on Fig. 1. The foregoing figures show the parts at the position of rest during the accumulation of the bundle. Fig. 4 is a view similar to Fig. 2, but showing the parts at the position occupied after the second cord is laid by the needle and the knetter-bill and holder have both Fig. 5 is a detail edge elevation of the holder with the shoe removed, showing the parts in the same position as in Fig. 4 looking in the direction of the arrow 5 on Fig. 4. Fig.` 6 is a detail sectional plan of the holder, showing the cords therein in the position occupied after the second cord is carried to the shoe, section being made in proper plane to disclose the cords. Fig. 7 is an edge or side elevation of the revoluble element of the holder, the shoe being removed, the position being the same as in Fig. 6. Fig. 8 is a view similar to Fig. 6, showing the parts at the position occupied just before the cord is severed. Fig9 is a side or edge elevation of the holder with the shoe removed looking in the direction of the arrow 9 on Fig. 8. Fig. 10 is a section at the line l0 10 on Fig. 4. Fig. 11 is a detail plan view of the holder in the position occupied after the cord is severed and the knot discharged and when the holder has about half completed its return to rest posi' Serial No. 24,482. (No medel.)

tion. Fig. 12 is a detailsection at the line 12 12 on Fig. 11. Fig. 13 is a detail view showing the relation of the knotter-bill pinion to the gear and delay-surface,rwhich actuate and control it at a certain part of the action.

A is the knetter frame or bracket.

B is the breastplate.

C is the knotter-actuating gear-wheel. c is its shaft. A

l) is the knotter-bill. Z is its shaft.

The knotter-actuating wheel O has the gearsegment C for engaging the knotter-pinion D and the segment C2 for engaging the holderpinion H2.

C3 is the delay-surface which controls the halt or rest of the knotter-bill, the same being cut away at c3 to permit it to be reversed for stripping the knot in a manner which is familiar.

The operation of the knotter-bill is that which is familiar in a considerable class of knotting mechanisms. The gear-wheel and knotter-pinion have their gear-segments and delaysurfaces cooperatively constructed to cause the knetter-bill to receive one complete positive revolution, starting and coming to final rest in the position shown in Figs. 1 and 2, the bill standing across the plane of the cord and needle path and the delay-surface C3 of the wheel C being cut away at c3 to permit the bill to be reversed through an angle amounting to from thirty degrees to forty-five degrees under the stress of the discharge action, so as to strip the knot from the bill in an oblique direction toward the discharge side, the bill being restored to final rest position by the shoulder O30 of the delay-surface. A lever K, pressed by a spring Ii', is pivoted to the frame A in suitable position to permit the free end of said lever to move in and out in respect to the knetter-bill axis at the side opposite that at which the jaws stand at rest and, being encountered by the roll G2 on the heel of the knotter-bill as the latter revolves, close the jaws at the proper time. VThis lever K is provided at its free end with the hook K2, adapted toseat the roll G2 and check the rotation of the pinion when there is no cord on the bill to check it at the proper point, to be engaged by the delay-surface C3 after the recess c3 is passed. rlhis featureis not claimed in this application.

rl`he frame'A has an arm A', in which the shaft /i of the holder is journaled. This holder comprises a revoluble element H, which -is a short cylinder or thick disk, hereinafter termed the holder-cylinder. Said holdercylinder H is secured at its center to the shaft L, whichprotrudes from'the lower end of the bearing A'. The axis of the holder is inclined to that of the knotter-bill, and the holder-cylinder is enough farther from the axisof the shaft Z so that the plane of the rotation of the holder-cylinder H is oblique to the cord drawn over the bill1 onto the holder-cylinder, which thus appears tilted upward at the side remote from the knotter-bill, as seen in Fig. 1. In the upper face of the holder cylinder or diskthe face toward the cord-tliere is formed a cord-receiving recess H', which extends nonradially ,withv respect to the disk and sloping or oblique as to its bottom with'respect tothe plane of rotation or upper surface of the disk, said recess commencing at said upper surface and deepening toward the periphery and extending thereto and constituting a gap therein, but preferably not extending across the entire periphery, so as to constitute a complete notch in its edge. The holder comprises besides said revoluble element H the clamp M, said clamp being pivoted at m to the frame A and adapted to swing about its pivot in ardirection substantially radial to the shaft L, its lower end being expanded into a shoe M', which bears upon the outer periphery of the holder-cylinder'` H and vextending thereabout on the side of the cord and needle path opposite the plane in which the axes of the knotter and holder shaft liel for a distance which may be one-third the circumference, more or less.

N is the holder tensionespring. It is coiled around the stud N', screwed into the arm A' of the frame A, and extended through an aperture in the suspending arm of said pivoted clamp M and provided with a head N2 and adjustable by screwinginto 'and out with respect tothe post to modify thetension of the spring at will. The boss n', in' which the stud N' is screwed, is above the path of the needle, which is thus permitted to play under the same above the holder shoe and cylinder and between the bearing A' and the clamp-arm. The shoe'M' is extended above the plane ofthe upper face of the holder-cylinder H, forming a sloping cord-guiding rib or flange M10 on the side toward the knotter-bilhits slope adapting it to guide the cord laid by the needle inward toward the knotter-axis. At the side remote from the knotter-bill the shoe has a guard-lug Mu, which overhangs the margin of the cord holdercylinder H, and the upper edgeof the shoe at this side is also sloped, so as to guide the cord laid by the needle inward toward the axis of the holder as it is carried down along said edge. The gear-segments and the delay-surfaces of the gear-wheel C and the pinion H2, by which the holder-cylinder is rotated, are arranged to cause the same to come to rest at the side remote from the knotter-bill and the direction of the cord stretched from the end of the holder-shoe back over the knotterbill, and at this position of rest of the holder, as shown in Fig. 2, the lug M11 of the shoe overhangs the edge /L' of said gap, the cylinder coming to rest immediately after said edge has passed inside the shoe and under said guard-lug M11 and while said recess is still uncovered. As the cord laid by the'needle is guided downalong the sloping edge of the shoe at the farther side and runs off from the lug M11 it comes into said recess. In order that the Vcord may not hang on the edge of said recess, but may pass down into the same deeply .enough tovbe properly engaged and carried to the shoe, the edge 7L' of the gap at the peripheral end of the recess thus overhung is cut away, forming an undercut at la, into which the cord thus guided down the slope of the shoe and over the lug M11 readily drops as it passes off the shoe into this gap. L is a rigid bar or blade which may be provided with a cutting edge, but which whether thus provided or not constitutes one of the two elements necessary to the severing of the cord. The other element is the edge H10 of the recess H. Since this latter is the moving element and the bar or blade L is the fixed element, I call said bar or blade the cordstop, but this is merely a convenient designation, since it may be and is shown as a knife having an acute cutting edge. It is secured to a boss B' on the breastplate B and extends over the upper face of the cord holder-cylinder in a direction transverse to the plane of the vpath of the cord and past said plane on the side of the axis of the holder toward the knotter-bill, so that the cords laid by the needle into the recess H' are laid over and immediately upon said cord-stop. Its edge remote from the knotter-bill, which isvthe cord-encountering edge and the cutting edge when it has such an edge, stands close above the path of the edge Hwof the recess H', so that it is in position to cooperate with said edge to sever the cord when the holder-cylinder H, revolving, causes said edge of the recess, crowdingthe cord before it, to pass by the edge of said cord-stop L. .Either of said cooperating edges may be a cutting edge,or both of them may be so acute as to operate as cutting edges, and preferably the cord-stop L is so situated as to stand in a distinctly shearing relation to the edge H10, so that cutting action shallnot impose any additional tensile strain on the cord.

Certain of the features of my improved knotter, and particularly of the cord-holder,

with the gap or peripheral end of the recess H' with the recess extending approximately in' IOO IlO

ISO

are designed in order to adapt it to operate toy strength to serve the purpose of grain-binding, is composed of vegetable laments whose structure is easily broken down by being bent abruptly over a sharp angle or being grasped tightly between hard surfaces, especially. if one of them is angular. All the devices and structures designed to operate withthat'twine must therefore be soy constructed as to avoid thus crushing or breaking the ber until after the knot is fully formed. In view of this circumstance it is necessary to provide, in the first place, that the cord which extends from the holder over the knotter-bill down through the breastplate to the eye of the needle while the bundle is being accumulated and which is subjected to more or less severe strain during such vaccumulation is not drawn over any sharp angle nor in any position where it is particularly liable to be chafed by any lateral movement to which it may be subjected by the swaying of the bundle during its accumulation. In binders designed to use a band of material heretofore customary a finger has usually been provided in the breastplateslot, over which the cord is drawn and held tightly during the accumulation of the bundle and from which the bundle is in a measure suspended while it is being encircled by the cord as the needle rises, such finger being located below the position of the Vknotter-bill, so that the cord runs from the bill onto the finger. Such finger would be extremely liable to cause grass twine to become chafed and cut off by being folded over as the bundle is packed. I thereforedispense with such nger as a cord-stop, providing, however, in the breastplate-slot a mere deiiecting prominence B10, by which the cord is guided over toward the shank of the knotterbill and caused to be lodged on the bill. Such deiecting prominence, however, does not extend to the line of the axis of the bill, and the cord guided by it toward that axis does not remain lodged against it, but, on the contrary, passes by the end of it, as seen in Fig. 1. The absence of this cord-supporting finger in the breastplateslot leaves the bundle suspended by the cord directly from the knotter-bill while it is accumulated and encircled with the band. If the knotter bill stood, in the ordinary position, pointing directly across the slot,without the finger to assist in supporting the cord,the stress of the bundle would very often cause the cord to slip off the bill, losing'the bundle.

` This I prevent by the formation of the clampshoe, the edge of whose flange M11 is so situated that the cord laid by the needle and guided by this edge is carried so far aside from the planeof the cord-path toward the plane of the axes of the bill and holder that from this point the cord extends across the bill in a direction making an obtuse angle with the bill, and for the same purpose and to increase the angle I locate the bill on its shaft with respect to the delay-surface of its pinion, so that at its position of rest said bill trends somewhat back toward the incoming needle, away from a direction at right angles to the cordpath, as seen in Fig. 2. By considering said Fig. 2 it will be observed that the cord held in the holder at the side remote from the knotter-bill and passing thence by the edge of the iiauge M1o of the shoe to the knotter-bill will require slack to be drawn from the bundle in order to swing laterally about the point of lodgment on the ange of the shoe,so as to escape over the end of the bill-that is to say, the distance from the point mi, at which the cord is lodged on the shoe, to the point at which it lodges on the bill in proper position, as seen in Fig. 2, is less than the distance from the same point m10 to the extremity of the bill which the cord must pass in order to escape from the latter. With the weight of the bundle and the further pressure tending to draw the cord tightly onto the bill (and it is this pressure which, if anything, would cause it to slip off from the bill) it will be seen that no slack will exist and that all the presi sure and weight therefore tend to hold the cord on the bill and prevent it from coming off. By reason of the characteristics of grass twine, as above explained, it may be understood that if the `cord when first laid by the needle in the recess of the holder-cylinder and carried by the edge of the recess inside the shoe were to be immediately pinched hard between the periphery of the cylinder and the face of theshoe, as necessary ultimately in order to hold it during the accumulation of the bundle, the strain upon the cord produced by the action of the knotterbill in laying the knot would break it off at the point where it is thus pinched, since it would not bear the strain of rendering through the holder the amount needed for laying' the loops of the knot. For this reason I form in the periphery of the cylinder H, commencing at the edge of the gap formed by the peripheral end of the recess H', a groove H4, which at the margin of the gap is nearly deep enough to completely accommodate the cord, but which extends through only about one-sixth of the circumference of the cylinder, becom- IOO IIO

ing shallower all the way until it runs out entirely. This causes the cordas it is carried under the shoe to be compressed gradually and with a pressure extending over considerable distance before the pressure becomes hard or amounts to a positive grip. The result is that the cord is under control from the moment it is encountered bythe edge of the recess and carried to the shoe,and by such control is prevented frombecoming slack, so as to uncoil from the bill or prevent the laying of the knot, but is nevertheless held so mildly that there is no danger of abrading the fibers or causing the c ord to be weakened to such extent as to give way under the strain. Moreover, the cord being thus gradually pressed by the rotation of the cylinder H behind the shoe has opportunity to Hatten out, and thus is not subjected to nearly such severe pressure on any particular fiber as it would be if the rst grip of the shoe upon it were the full and complete grip, which is finally obtained beyond the groove H4. This feature of construction adapts my knotter to operate with grass twine, which is entirely unmanageable with an ordinary cord-holder. Another special advantage of the groove H4 in the periphl ery of the cylinder H is not confined to the use of grass twine, but is of equal importance whatever be the character of twine employed.

In the absence of such groove or any equivalent feature of construction, if the portion of the second cord laid in the notch or recess of the revoluble element happens to be of greater diameter than the portion which is already clamped between the periphery of the cylinder and the shoe, or if said second-cord at the point where it is carried inside the shoe contains a knot or thick place, it will-be seen that the shoe will be forced out by said thicker portion of the thick place or knot of the twine andthe held end or first cord may thereby be released, so that it will slip out, and the bundle will be lost. This is a fruitful cause of missing bundles in all knotters now in use with any twine which is not perfectly even, and it is this which" creates the imperative necessity for great uniformity in twine which is used for binding.4 When, however, the groove H4 is formed in the cord-seating periphery of the revoluble element or carrying element it will bek seen that a wide variation in the diameter of the cord is provided for and can be accommodated without danger of releasing the held end, because by the time the cord-carrying element has moved so far inside the shoe that the end of the groove has reached the shoe and the cord is clamped between the full' face of said periphery and the shoe the knotting operation has proceeded so far that'the knot is fully laid on the knotterhook, and the release of theY held end of the cord would cause no damage. By reason of thesame peculiarity of the grass twine it is necessary to avoid causing it to be drawn or folded tightly over the edge of the knife, which, nevertheless, must extend across the cord-path and under the cordso that the first cord is laid over it when the needle retreats and the second cord is also laid over it Awhen the needle advances. To this end .theupper surface of the holder-cylinder H is given such a slope that the cord running in a straight line from the top ofthe recess H to the bill extends at an'angle to the upper surface of the cylinder, and in this angle the knife L is accommodated, so that it does not either by its forward or rear edge constitute a defiection for the cord. This slope of the upper surface of the cylinder is mainly obtained by the inclination of the axis; but .as a matter of economy of space and in order to get all the parts in the best working relation 1 obtain the desired angle between the upper surface of the cylinder H and the cord by slightly hollowing said upper surface,as most perfectly seen in Fig. 3, causing the knife to be deflected or depressed' to correspond with such hollowing. In order to avoid folding the cord karound a sharp corner at the point where it passses from the recess H around into the groove H4 when it is carried behind the shoe, I round the corner of the gap which the recess makes-at the periphery of the holder in the zone of the groove H4, and this causes an undercut' to be formed, as seen at z, in the side of the recess H. This undercut is of itselfof value and may be formed independently of the purpose of rounding the corner in order that the cord which is laid in the recess bythe needle and which by the rotation of the cylinder is to be carried tothe shoe may be provided with an overhanging guard-lip IL10 to prevent it from slipping up out of the recess and escaping. This is especially important in view of the fact that the recess is a sloping one and that the cord extends in that recess up to its shallower end and Would therefore be liable to be pried out by the rotation of the cylinder if the edge of the recess which advances toward it should encounter it first at the shallow end of the recess and before it became overhung in any manner at the deeper end. This may be best understood by considering Fig. 4, which shows the cylinder in the position occupied as it is just about encountering the second cord to carry it to the shoe. It will be seen by comparing-this .view with Fig. 2 (the latter being the position of rest) that the direction of the recess,V or particularly the advancing edge thereof, with respect to the line in which the cord is laid by the needle or in which itis drawn, which extends drawn from the corner of the shoe to the position on the bill, is such that the outer end of the driving side of the recess reaches the cord before the inner or shallower end. Notwithstanding this, if it were not for the undercut the cord might sometimes be pried up; but the overhanging lip lilo, produced by the undercut reaching and overhanging the cord before the edge H10 of the recess H at the shallow end encounters it, retains it securely while it is carried to the shoe.

The fixed `element or shoe M of the cordholder has a recess or pocket oir/,into which the end of the cord-severing stop L protrudes where it extends beyond the periphery of the rotary element of -the holder, as indicated'in dotted line in several of the figures. The purpose of this construction is to guard the end of the cord-stop to prevent the cord which is IOl lodged thereon from -passing by that end, and so becoming engaged on the wrong side of it, as is liable to happen if the cord is frayed.

l. In a knotter for a grain-binder, in combination with a suitable knotting-hook, a cordholder comprising two elements, one revoluble and the other non revoluble, between which both ends of the cord remain lodged during the laying of the knot; means for rotating the revoluble element in direction to carry the side at which the cord is lodged toward the knotterbill during the wrapping of the cords on the bill by the rotation of the latter, said elements of the holder being relatively formed at the surfaces which constitute the lodgingplaces respectively of the holder end of the cord and of the needle end of the same so as to clamp such holder end firmly and to eXert only mild pressure on the needle end during a substantial portion of the wrapping of the cords about the bill to form the knot.

2. In a knotter foragrain-binder, the combination of a knotting-hok with the cordholder comprising two elements, one revoluble and the other non revoluble, between which both ends of the cord are lodged during the knot-laying operation, the cooperating surfaces of said elements being relatively formed at the portion which forms thelodging place of the holder end so as to clamp said end, and at the portion which forms the lodging place of the needle end so as to adord said end lodgment with mild pressure fromthe lodgment of the cord vbetween said elements throughout a substantial portion of the period of wrapping the cords on the bill to form the knot; and means for operating said revoluble element in a direction to carry the lodging places of both ends toward the knotting-hook during said knot-laying operation.

3. In a knetter for a grain-binder, in combination with the knotting-hook, acord-holder comprising two elements: one having movement with respect to the other; means for moving the former to cause the cord to be lodged between said elements and to carry the cord thus lodged toward the knotting-hook,

said cord holder elements being relatively formed at the portion of their cooperating surfaces which forms the lodging place of the holder end of the cord so as to clamp said end, and at the portion which constitutes the lodg-v ing place of the needle end so as to afford said end lodgment with mild pressure-from the time said needle end is lodged between said elements throughout a substantial portion of the period of wrapping the cords on the bill toform the knot. i

4. A cord-knotter for a grain-binder provided with means for engaging the cord running from the needle tothe knotting-hook and an element of a holder onto which the cord is drawn lengthwise and lodged and on which it is retained by said cord-engaging means, said parts being relatively formed to cause and permit such carrying lodgment and retention with only slight pressure on the cord during the portion of the knot-laying operation next following said engagement and lodgment of the latter.

5. A cord-knetter for a grain-binder comprising two elements of a holder, one of which has movement past orl along the length of the other, said moving element being adapted to engage the cord running from the needle to the knotting-hook to lodge it on the other element, said elements being formed respectively to cause and receive such lodgment with only slight pressure on the cord; and means for operating the moving element in direction to carry the lodgment of the cord thereon t-oward the knotting-hook during the knot-laying operation. i 6. In a cord-knotter, a holder having a suitable cord-clamping shoe, and means for engaging the needle-cord and carrying it lengthwise toward the knotting-hook and between the walls of the holder without affecting the pressure of such clamping-shoe on the holder end of the cord during the greater part of the operation of wrapping the cords on the bill to form the knot.

7. A cord knetter; a holder comprising means for engaging the loose end or needlecord and lodging it between the walls of the holder and simultaneously carrying it with only slight pressure toward the knotter-hook, in combination with means for gradually releasing the held end of the cord while under pressure during the knot-layingpperation.

8. In a knotter for a grain-binder a cordholder comprising two elements, oneof Which moves relatively to the other to engage and carry the cord between said elements toward the-knotter-bill during the rotation of the latter to form the knot, said holder elements having cooperating surfaces between which the cord is lodged, one of said elements having said surface provided with a long recess back of the cord-encountering point, affording lodgment for the needle-cord in which said cord is held with only mild pressure, said recess extending for a distance approximately equal to the movement of the moving part occurring while the cords are wrapped around the `bill for forming the knot.

9.V In a knotter for a grain-binder, a cordholder comprising two elements between which the cord is grasped, one of which carries the cord to the other in direction toward the knetter-bill during the formation of the 4knot on the bill, said carrying element having its face on which the cord is first received, provided with a recess extending back with respect to the direction of rotation from the cord-encountering point, said recess being of gradually-diminishing depth to accommodate the cord; whereby the cord is held by only `mild pressure in said recess, the length ofI IOO IOS

suoli recess being approximately equal to the movement which said cord-carrying element makes while the bill is wrapping the cords about it for the-knot.

10. Ina knotteryfor a grain-bindera cordholder comprising two elements between which the cord is clamped; meansfor causing relative movement between said elements in direction to cause the cord to be drawn lengthwise between them, the cord-pressing face of one of said elements being shaped with respect to the direction of' movement to cause it to approach the corresponding face of the other element as said movement progresses lengthwise with respect to the cord, so gradually and slightly as to cause only mild pressure on the cord during the greater part of the period of wrapping the cord about the bill to form the knot.

11. In a knotter for a grain-binder, a cordholder comprising two elements between which the vcord is clamped, one of which draws the cord lengthwise into contact with the other, the cord-pressing face of such drawing element being shaped with respect to its path of movement so as to approach the corresponding face of the other element as it advances lengthwise with respect to the cord along said other element from the cord-encountering point, so gradually and slightly as to produce only mild pressure on the cord during the greater part of the wrapping of the cords about the bill to form the knot.

12. In a'knotter for a grain-binder, va cordholder comprising a fixed element and a moving element which draws the cord lengthwise into contact with the fixed element, the cordpressing face of said moving element being shaped with respect to its path of movement so as to approach the opposite face of the. fixed element as it advances lengthwise of' the cord along' said fixed element from the cord-en countering point, so gradually as to exert only mild pressure on the cord during the greater portion of the wrapping of the cords on the bill to form theA knot.

13. In a knotter for a grain-binder, a cordholder comprising a fixed element and a moving element which draws the cordlengthwise into contact with the fixed element, the moving elementliaving a groove in its cord-pressing face which is deepest at the cord-encountering point and extends, gradually diminishing in depth, backwithrespect to the direction of movement from cord encountering point so-gradually as to exert only mild pressu re :on the cordduring the greater portion of the wrapping of the cords on the bill to form the knot. f

14. vIn a knotter for a grain-binder, a cordholder comprising a revoluble element having itsface, which is transverse to the axis, provided with a cord-receiving recess, which at the position of rest of said element, extends in said face substantially in the plane of the cord-path from a point within the periphery to said periphery, forming a gap therethrough, 'in combination with a shoe which presses toward the periphery to hold the cord thereagainst; said revoluble element having in the peripheral face on which the shoe presses, a

groove leading from the gap formed in the periphery by the cord-receiving recess, back with respect to the direction of rotation, affording space within which the needle-cord is received, and relieved from the pressure of the shoe, said groove extending'in said periphery for a distance corresponding to a substantialv portion of the period of formation of the knot by the bill.

15. In a knotter for a grain-binder, a cordholder comprising a revoluble element having its face which is transverse lto the axis provided with a cord-receiving recess extending in said face non-radially with respect to the axis of rotation from a point within the periphery to the periphery, and forming a gap therethrough, in combination with a shoe which presses toward the periphery to hold the cord thereagainst, said revoluble element having in the peripheral face on which the shoe seats, a cord-receiving groove which commences at and merges in the gap which the -cord-receiving recess in the transverse face forms through the periphery, and extends from said gap back with respect to the direction of rotation for a distance corresponding to a substantial portion of the period of formation of the knot; whereby the cord received in said groove is relieved of the pressure of the shoe so as to be held only mildly thereby during such portion of 'the rotation.

16. In a knotter for a grain-binder a cordholder comprising a revoluble element having its face which is transverse to the axis provided with a cord-receiving recess which extends in said face from a point within the periphery to the periphery, forming a gap therethrough, in combination with a shoe which vpresses toward the periphery of the revoluble element to hold the cord thereon; a cord-receiving groove in the peripheral face of' the revoluble element on which the shoe seats, commencing at the gap and merging therein,

`and extending therefrom back with respect 'to the direction of rotation; and `mechanism` which gives such revolubler'eleinent one coinplete revolutionl for each knotting operation, bringing it to rest with said recess in the transv verse face extending substantially in the plane' of the cords path.

17. In a knotter for a grain-binder, a cordholder comprising a revoluble cylinder having one face transverse to its axis provided with a cord-receiving recess which extends from a point within the periphery to said periphery, forming a gap therethrough; a shoe which presses toward the periphery to hold the cord thereon; means for rotating the revoluble element to cause one edge of' the gap to carry the cord lodged in the recess under or behind the shoe; and a cord-stop Whose cord-encountering edge extends over said transverse recessed face in cord-severing relation to one of the edgesv in said face, of said recess.

18. .In a knotter for a grain-binder, a cordholder comprising a revoluble cylinder having a face transverse to its axis provided with a cord-receiving recess extending from a point Within the periphery to the periphery, forming a gap therethrough; a sho'eJ which presses upon the periphery of said element to hold the cord thereagainst; means for rotating said revoluble element to cause one edge of the gap in the periphery to carry the cord lodged in the recess of said transverse face'under or behind the shoe; a cord-stop Whose cord-encountering edge stands adjacent to said transverse recessed face of the cylinder in shearing relation to one of the edges in said face of said recess. Y v

19. In a knotter for a grain-binder, a cordholder comprising a revoluble cylinder having a face transverse to its axis provided with a cord-receiving recess commencing at a point Within the periphery and extending in said face to the periphery, forming a gap therethrough, said periphery having a face on Which a shoe may seat; a shoe which presses toward said face to hold the cord thereon; a cord-receiving groove cut back in said peripheral face, under or behind the shoe, commencing at and merging in the gap formed in the periphery by the recess in the transverse face, and extending from said gap back With respect to the direction of rotation, to afford the cord a long seat in Which it is relieved of the extreme pressure of the shoe and held only mildly thereby; mechanism for giving the cylinder one revolution for each knotting action, bringing it to rest With the recess in the transverse face substantially in the plane ofthe cords path, and with the gap which said recess forms in the periphery at the opposite side of the holder from the knetter-bill.

20. In a knotter for agrain-binder, a cordholder comprising a revoluble cylinder Whose plane o f rotation is transverse to the plane of the cords path, said cylinder having a face transverse to its axis and facing toward the cords path, recessed to receive the cord, such recess commencing Within the periphery and extending to and through said periphery, forming a gap; therethrough, in combination With a shoe pressing inward toward the periphery of the cylinder to hold the cord thereagainst; mechanism which. gives the holder one complete revolution for each lmottingaction and brings it to rest With the recess y1in the transverse face substantially in the plane of the cords path, and with the gap which said recess forms in the periphery at the opposite side of the holder from the knotter-bill; and a rigid knife Whose cutting edge extends over said transverse recessed face of the cylinder `brings it to rest With the gap substantially in the plane of the cords path, on the opposite side of the holder from the knotter-bill; and and a cord-stop Whose cord-encountering edge extends across the cords path, adjacent to the recessed face of the holder at the side of the axis of the latter toward the knotter-bill.

22. In a knotter for a grain-binder, a cordholder comprising a revoluble cylinder having at one face a sloping cord-receiving recess commencing in the surface of such face and extending deepening to the periphery and forming a gap therethrough; a shoe pressing in toward such periphery to clamp the cord thereagainst; a fixed cord stop extending across the plane of the cords path over the surface of the face of the cylinder in which said cord-receivingrecess is formed; mechanism Which revolves the cylinder and brings it to rest with the gap in the periphery'at the side remote from the lrnotter-bill, the sloping recess extending from such gap toward the knetter-bill; the cord-stop having a cord-severing edge, and said edge being between the surface in which said sloping recess is formed, and the direct line of the cord drawn taut from the bill to the top of said recess and in position to cooperate with one edge of the recess for cutting the cord.

23. In a knotter for a grain-binder a cordholder, comprising a revoluble cylinder Whose plane of rotation is transverse to the plane of the cord-path; a concentric shoe which presses in toward the periphery of the cylinder to `clamp the cord thereagainst, said cylinder having the face toward the cord-path provided With a cord-receiving recess which extends to the periphery and forms a gap therein, said periphery of the cylinder having a groove which merges in said gap at one side thereof diminishing in depth from the gap to the remote end of' thegroove; and mechanism Which revolves the cylinder to carry the groove behind the shoe, deeper end foremost.

IOO

24a. In a lnotter for a grain-binder, acordi holder comprising a revoluble cylinder having a face transverse -to its axis provided with a cord-receiving recess which commences Within the periphery and extends to the periphery, forming a gap therethrough; a shoe Which A presses toward the periphery to hold the cord lthereagainst; mechanism for giving the cylinder one complete revolution in each knotting operation to cause the cord laid in the recess in the transverse face to be carried by the edge of thegap toward the shoe, the side of the recess which faces the shoe as the holder thus revolves being undercut at the end toward the periphery. l

25. In a knotter for a grain-binder a cordholder, comprising-a revolu ble cylinder having one face provided with a' cord-receiving recess which extends to theperiphery forming a gap therein; a shoe pressing in toward said periphery to clamp the cord thereagainst; the side of' the recess which faces the entrance end of the shoe as the cylinder is revolved being undercut at the periphery, and the periphery having a groove which merges in said undercut forming a rounded corner; said groove diminishing in depth as it extends back from the recess to the remote end.

26. In a knotter for a grain-binder, in combination with the knotter-bill a cord-holder, comprising a revoluble cylinder having its axis inclined to that of the knotter-bill to tilt the cylinder up on the side remote from the bill, such cylinder having its face toward the cordpath provided with a sloping, cord-receiving recess, which, in the direction of its greatest slope, trends non-radially with respect to the cylinder, deepening toward the periphery of the latter, and which forms a gap in said periphery; mechanism which gives the cylinder one revolution for each complete knotting action, and brings it to rest with said gap at the side remote from the knotter-bill, the trend of the taut cord from the shallow end of the recess tothe knetter-bill at the position of rest being slightly away from the recessed face of the cylinder; and a cord-Stop extending across the plane of the cord-path in the angle between said taut cord and Said face of the cylinder having its cord-encountering edge situated in cord-encountering relation to the edge ,of the cord-receiving recess as the cylinder revolves.

27. In a knotter for a grain-binder a cordholder, comprising a revoluble cylinder having one face pro vided with a sloping recess extend.- ing to the periphery and forming a gap therein; said recessed face 'of the cylinder being slightly hollowed, and a fixed knife extending over the said face, across the plane of the cordpath, `and inclined from its back to the cutting edgerto correspond tothe hollowing of said face; whereby its edge standsin'shearin'g relationfto the advancing edge off the recess and below orf back of the'line of the cordA drawn taut'fror'n the knetter-bill into said recess.

QSL In a knotter for a grain-binder a cordf holder, comprising a revoluble cylinder having one'surface' provided with a cord-receiving recess which extends to the periphery and forms a gap therein; a shoe which presses against the periphery to clamp the cord thereagainst; said shoe having a lug which overhangs the margin of the cylinderat the sidel remote from the knotter-bill, and having its edge at that side sloped to guide the cord in toward the axis of the cylinder; mechanism which revolves the holder and brings it to rest with said recess at the side remote from the knotter-bill and the advance edge of the recess just entering behindtheshoe; said side of said recess being undercut at the edge of the gapvwhere said edge is overhung by the lug of the shoe; whereby the cord drawn down along the guidingedge of theshoeinto the n gap is delivered into said undercut and Aprevented from ,hanging in the edge of the recess.

29. In a'knotter for a grain-binder, a cordholder,comprising a revoluble cylinder whose plane of rotation is transverse to the plane of the cord-path; a concentric shoe pressing in toward the periphery of the cylinder to clamp the cord thereagainst, said cylinder having its face toward the cord-path provided with a cord-receiving recess which extends to the periphery of the cylinder and forms a gap therein; said periphery being cut back from its cylindrical outline to form an eccentric face or seat for the lodgment of the cord which commences'at the gap and merges in the cylindrical outline a short distance therefrom, I around the periphery in the direction of rotation.

30. In a knotterrfor a grain-binder a cordholder, comprising a revoluble cylinder haV ing one face provided with a cord-receiving recess extending to the periphery of the cylinder; a shoe pressing in toward said periphery to clamp the cord thereagainst; a rigid stop for severing the cord, whose cord-encountering edge extends over the recessed face of the cylinder in cord-severing relation to one edge of the recess, such blade or bar terminating beyond the periphery of the cylinder and having a guard in which the end is received,to prevent the fibers of the cord passing by said end.

31. In a knotter for a grain-binder a cordholder, comprising a revoluble cylinder having one face provided with a cord-receiving recess extending to the periphery of' the cylinder; a shoe pressing toward said periphery to clamp the cord thereagainst; a rigid stop for severing the cord, whose cord-encountering edge extends over the recessed face of the cylinder in cord-severing relation to one edge of `the recess; such `blade or bar terminating beyond the periphery vshoe having a recess into which the end of ofV thecylinder; and the such bar protrudes, whereby the shoe guards IOO IIC

the end of' said cord-stop and prevents the :d

fibers of the cord passing by said end. K

82. In a knotter for a grain-binder, in combination with the knotter-bill av ,cord-holder comprising a revoluble cylinder; ashoe pressing on the outer periphery of the cylinder to clamp the cord thereagainst and extended above the cylinder on the side of' the cordpath opposite the knotter-bill axis; such shoe having an extension on the side of the holder my hand5 at St. Paul, Minnesota, in the presy toward the knetter-bill, such extension havence of tWo Witnesses, this 20th day of July,` IO

ing its edge sloped to guide the cord laid by A. D. 1900. the needle inward toward the knotter-bill axis;

5 and mechanism Which gives the cylinder one EDWN M' KELLOGG revolution for each complete knotting opera- In presence of tion. HENRY WOLFE,

y In testimony whereof I have hereunto set GUY CHASE.

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