O BARBER-COLMAN COMPANY, OF ROCKFOR D, This invention relates to knotters, being manual operation, being herein shaped and.
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5 5 25 30 35 45 50 UNITED STATES FATENT OFFICE. CHARLES LEA, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY VIESNTE ASSIGNITIENTS, O BARBER-COLMAN COMPANY, OF ROCKFOR D, iTOS, LLINOIS, A. CORPORATION OF KNOTTER, 354,668. Application filed November 2, 1911. To all whom, it may concern. Be it known that i, CHARLEs LEA, a citi Zen of the United States, and a resident of Boston, county of Suffolk, State of Massa chusetts, (whose post-office address is 195 Freeport street, Dorchester, Massachusetts,) have invented an improvement in Knotters, of which the following description, in con nection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. This invention relates to knotters, being intended to provide a relatively simple form of implement by means of which knots can be rapidly and effectively tied. The em bodiment of my invention herein shown is intended more particularly for tying spool ers knots in textile mills, but the inven tion may be applied to other uses than the one herein disclosed, as well as embodied in other forms of implements intended for the Sale Se. The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more partie ularly pointed out in the appended claims. in the drawings: Figure 1 is a side elevation of a knotter embodying one form of the invention, show ing the manner in which it is held and ma-. nipulated, and showing the position of the parts after the coil has been formed; Fig. 2 is an end view of the knotter shown in Fig. 1; Fig. 3 is a side elevation partly broken away and in partial section on a somewhat larger scale showing the parts in a second or intermediate position; Fig. 4 is a similar view showing the parts in their final position just prior to stripping the knot; Fig. 5 is a detail end view showing the threads and the holding hook in a position correspondingto Fig. 4 just as the end has been severed; Fig. 6 is a similar view showing the knot, as it is being stripped; w Fig. 7 is a section taken through the bar rel showing the spit forming end or nose, the thread-engaging hook contained therein, and its operating plunger; and Specification of Letters latent. Patented (Oct. 5, 920. Serial No. 658,104; Fig. 8 shows the other half of the split forming end. Referring to the drawings and to the illustrative embodiment of my invention therein shown, the knotter includes a barrel or body portion 1 the midportion of which is fastened to the collar 2, as by means of a set, screw, the collar being secured to any suitable member whereby it may be held by or fastened to the hand of the operator such as the bracket 3 having two loops 33 by which the knotter is adapted to be car lied upon the index and middle finger of the hand. This may be the right hand or left hand, the knotter being herein shown as applied to the right hand, merely for illustrative purposes. The forward end of the barrel terminates in a coil-forming end or nose 4 having a generally beveled or tapered shape as shown, whereby a coil may be formed thereon, as will hereinafter be more fully described. Located within a slot in the nose 4 is a movable and herein reciprocatory strand engaging member 5 having such a movement and formation as to enable it at the same time to hold back the coil as it is formed and also to effect the crossing of the ini tially wound strand of the coil over the suc ceeding strand. Its formation is also such that after seizing the strand to be crossed and crossing the same it draws it into the slotted end of the nose where it severs the strand and holds the severed end permitting 55 66 . 65 70 8. 35 the coil to be slipped over the held end and the thus knotted end to be stripped from the tip of the coil-forming nose: As shown more fully in Figs. 7 and 8, the slot which contains the strand-engaging member is provided by splitting the form ing end of the barrel, the part 6 (see Fig. 8) being cut back at 7 (Fig. 7) to receive the strand-engaging member 5 and provide split nose portions 4 and 4*. The latter is piv oted for reciprocating movement upon a pin 8 fixed in the recess 7 but has a slot, 9 in which works a pin 10 secured to the axial plunger 11, the latter extending back through the barrel. The plunger at its rear end is forked to receive the beii crank iever 12 pivoted at 13, one arm of the lever hav ing the double-acting cam silot, 14 in which works a transverse pin 15 carried by the 90 GC
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O 15 20 25 30 35 40 45 50 55 2 forked end of the plunger 11, The other arm 16 of the lever is arranged for suitable manual operation, being herein shaped and located to be pressed by the thumb of the operator’s hand which holds the knotter. The lever is normally thrown to the position shown in Fig. 1 by the spring 17, the latter being coiled about the pivot 13 and having one end bearing against the lever 16 and the other end ‘seated against the side of the barrel. The spring permits the lever to be moved to the position shown in Fig. 4, which movement is accompanied by a com plete reciprocation of the strand-engaging member 5, that is to say, for a half stroke of the thumb lever the member 5 first moves back to the position shown in Fig. 3 and then again forward to the position shown in Fig. 4. When the strand engaging member has been placed in position upon the pins 8 and 10, the removable section 6 may be placed over the same, the pin 8 serving as a dowel pin to position the section 6. The latter is then fixed in position by slipping over the end of the nose the removable collar 18, such collar being pushed to a seat against a shoulder, 19 and held in place by a set Screw. The beveled edge of the collar is slotted at 20 to permit the full throw of the reciproca tory member 5. In order to hold the initial strand of the formed coil within the path of the strand engaging member 5, strand-guiding means are employed. These may consist of any suitable guiding devices, but herein this function is performed by the hook-shaped strand guide 21 which is held fixed with ref erence to the nose and slightly at one side of the slot therein. Herein the guide is fixed upon the collar 18 by means of the set Screw 22 which latter, however, passes through a slot in the thread guide so that the guide may be adjusted to different positions. As the coil is farmed it may be held back by any suitable means which may either be a part of, or independent of the member 5. Herein such coil-holding means is provided by the detent or hook 23 formed on the mem ber 5 and which in the normal position of the parts, as shown in Fig. 1, projects from the nose through the slot at the side opposite the thread guide 21. To effect a crossing of the initially wound strand, or the strand which is first applied to the forming end in the formation of the 80 coil, over the succeeding strand the tip of the member 5 is formed into the strand crossing hook 24 immediately back of which is provided the notch 25 for holding back the succeeding strand while the hook 24 is draw ing the initial strand across the same. One edge 26 of the hook on the side adjacent the thread guide is sharpened so that in con 1354,668 junction with the coöperating edge of the nose it forms a shearing device. The oppo site edge of the jaw and the corresponding edge of the nose are blunt and somewhat beveled so as to pinch a strand drawn be tween these edges without cutting the same. Spoolers’ knots are used to unite two threads 70 while the latter are held side by side. The description of the tying of such a knot will serve to show the manner in which the illus trated embodiment of the invention is used. It is to be understood, however, that the in vention is applicable to the tying of a knot in one or any number of strands and whether the latter consist of thread, yarn, wire or any other flexible filaments. In the operation of uniting two threads with the described form of implement, the latter is held in either hand as represented in Fig. 1. If this be the right hand, as shown, the free ends of the two threads to be united are grasped by the fingers of the hand holding the knotter, this being merely to anchor or tension the ends. The two threads held in the remaining hand are then wrapped about the forming end, the on coming or initial strand of the coil being first laid in the hooked end of the thread guide 21. – The thread guide, as shown in Fig. 2, being offset toward the side from which the thread is wound on the end, the initial strand of the coil is drawn down across the path through which the thread engaging hook 24 passes when it emerges from the slot. The side of the thread-forming nose from which the hook 24 emerges is slightly grooved under the thread guide at 6* so that when the operator wraps the thread about the same, the initial strand passes diago nally from the guide to the side of the form ing end, but the succeeding strand of the coil tends to settle into the groove. As the strands are wrapped about the forming end, the hook 23 projects at such a point and angle that the operator naturally lays the thread back of the hook and the coil is thereby prevented from slipping off from the end until after the hook has been with drawn. Having wrapped on the coil by giving the threads one turn about the nose, the thumb lever is pressed, which throws the thread engaging member 5 from the position shown in Figs.1 and 7 to that shown in Fig. 3. This withdraws the coil-retaining hook 23 within the nose so that that side of the coil is free to slip toward the end of the nose and, under the slight tension which the op erator maintains upon the threads, slips out toward the position shown in Fig. 3. As the thread hook 24, however, emerges from the slot in the nose co-incident with the withdrawal of the coil-holding hook 23 75 8 85 90 95 00 0. 1. 12 2
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2,354,668 therein, the threads constituting the second or outer strand of the coil slip into the slot 25 and are held back by the neck of the hook 24, which latter passes back over and 0. 20 above the same. As the thread hook 24 passes over the outer strand it Snaps past and under the first or initial strand of the coil which leads diagonally down from the thread guide 21 to the side of the forming nose, so that on its subsequent forward movement, which immediately follows, such initial strand is drawn down by the hook and carried into the slotted portion of the nose as represented in Figs. 4 and 5. This results in severing the strand at the edge 26 of the hook on the thread-guide side thereof and at the same time in pinch ing the strand between the opposite edge of the hook and the edge of the slot so that a slight pull on the threads heid in the free hand of the operator is required to free 25 30 35 40 45 50 50 the pinched or held end. The result is that as the hook reénters the slot, the slotted portion 25 leaves the coil, whereby the coil is entirely freed so that the tension main tained by the operator on the threads draws the coil over the pinched and severed end and strips it off from the nose, thereby forming and tightening the knot as shown in Fig. 6. In actual practice the thumb-actuated movement of the thread hook can be so timed with the wrapping of the threads about the forming end that the hook is moved to seize and cross the strand, sever it and pinch it with no appreciable interval between the formation of the coil and the stripping of the knot, the continued tension applied by the operator in wrapping the loop about the forming, end being utilized in drawing and stripping the simultane ously knotted threads. It will be seen that the knotted ends are left in the free hand of the operator while the waste ends are left in the hand holding the implement. In the embodiment of the invention illustrated the knot is tied with out the introduction of the usual twist which is given the strands near the knotted ends. Such twist which accompanies the tying of two strands where the loop is formed, the strands crossed and the knot. completed, all by the rotation of a tying bill, is often a serious objection resulting in forming a snarl. In the illustrative embodiment of the in vention the implement is greatly simplified and its rapidity of operation in no material degree lessened in having the operator him self wrap the strand or strands about the forming end while the latter is held fixed in the hand, as well as in having the oper ator slip the loop over the crossed end to complete the knot by the manual draft on the held threads, all instead of forming the knot automatically although other means may be had both for forming the coil and the knot. While I have herein shown and described for purposes of illustration one specific form of my invention, it is to be understood that the same is not limited to the constructional details of the parts herein disclosed, but that extensive deviations may be made from the illustrated embodiment without depart ing from the spirit of the invention. Claims. 1. In a knotter, the combination with a forming end upon which a coil may be formed from the inner toward the outer end thereof, a guide for the initial strand of the coil, means to convey the initial strand over and across the succeeding strand toward the end of the forming member after the formation of the coil, and means thereat to hold and sever the same permitting the coil to be stripped thereover. – 2. In a knotter the combination with a 70 75 30 coil-forming end of means to carry the ini tially wound strand of the coil over and across the next succeeding strand from the inner end toward the outer end of the form ing end after the formation of the coil, sev ering means to sever said crossed strand and holding means to hold the same in crossed position. – 3. In a knotter, the combination with a coil forming end of means for holding the same in fixed position upon the hand of the operator, manually actuated means for con veying the initially wound strand over and across the succeeding strand of the coil, and means for there holding the same. 4. In a knotter, the combination with a coil-forming end, movable strand-crossing means, and coil-retaining means for said end movable with said strand crossing means. 5. In a knotter, the combination with a coil-forming end, strand-crossing means adapted to move through a path on one side of said forming end, and means to retain R coil at the opposite side of said forming eC. 6. In a knotter, the combination with a coil-forming end, of strand-crossing means adapted to move through a path at one side of said forming end, and means to retain the coil at the opposite side of said forming end, said means comprising a coil retaining detent adapted to be withdrawn into said forming end on movement of said strand CrOSSling means. 7. In a knotter, the combination with a slotted coil-forming end, of a reciprocatory Strand-engaging and strand-crossing hook movable lengthwise in the slot thereof, a Strand guide, and means for reciprocating said hook. S. In a knotter, the combination with a slotted coil forming end, of a reciprocatory 90 100 105 10 5 20 25 : 3. C
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O 5 strand engaging hook therein, a strand guide and means for reciprocating said hook, said hook having a shearing edge on one side and a holding edge on the opposite side to coöperate with the edges of the slotted forming end. 9. In a knotter the combination with a forming end, a strand engaging and crossing member, a barrel, means for holding the barrel upon the hand of the operator with the forming end fixed, whereby the operator may form a coil thereon, a thumb lever at the opposite end of the barrel, and a con nection between the thumb lever and the strand engaging and crossing member. 10. In a knotter, the combination with a forming end, a reciprocatory strand engag 20 25 30 35 40 45 50 55 60 ing hook therein, a thumb lever at the oppo site end of the knotter, an actuating mem ber for the hook, said thumb lever having a double-acting cam slot for moving said ac tuating member. 11. In a knotter, the combination with a forming end of a strand engaging member, a manually actuated operating member, and means for effecting a complete reciprocation of the strand engaging member through a half reciprocation of the manually operated member. 12. in a knotter, the combination with means adapted to be held in one hand whereon the operator may wrap a strand with the remaining hand, of means, oper able by the hand holding the implement, for crossing, severing and holding the strand while the operator with the remaining hand strips the formed knot over the held and severed end. 13. In a knotter, the combination with a forming end upon which a coil may be formed, of means for crossing, severing and holding a strand while the forming end re mains fixed, to permit the formed knot to be stripped over the same. 14. In a knotter, the combination with a coil-forming member about which a strand may be wrapped, means for engaging the initially wound inside strand of the coil after the formation of the latter and draw ing the same toward the end of the forming member, and means for severing and holding it to permit the stripping of the coil there OWe. 15. In a knotter, the combination with a coil-forming end of means outside the coil for seizing the initially wound strand on the inside thereof after the formation of the coil and conveying it toward the forming end, severing means and holding means per mitting the f to be stripped over the held severed end. 16. In a knotter, the combination with a beveled forming nose about which a coil may be wrapped, a hook reciprocatively 1854,668 mounted in said nose, a guide to hold a strand of said coil across the path of move ment of said hook, and means for actuating said hook to cause the same to reach across the formed coil to seize said strand and carry the same across the coil and toward the end of the nose whereby the coil may be slipped over the same to form the knot, 17. In a knotter, the combination with a tapered forming end about which a coil may be wrapped, a reciprocatory strand en gaging member in said end having a nor mally projecting coil retaining portion on one side thereof, a strand-engaging mem ber adapted to be projected from the oppo site side of said end outside of the formed coil to seize the strand and draw the same toward the forming end, means for guiding said strand within the path of movement of the hook, and means for severing and hold ing the strand thus seized to permit the coil to be stripped over the same. 18. In a knotter, the combination with a slotted tapered forming nose about which a coil may be formed, a reciprocatory strand-engaging member movable in the slot, said member having a hook adapted to emerge from said slot outside of the formed coil and reach across the same to seize a strand, means for moving the hook to seize said strand and draw the same across the coil toward the end of the nose, a guide to hold the initial strand of the coil across the path of the strand-engaging hook, a retain ing hook on said movable member to hold back the opposite side of the coil on the nose, said hook being withdrawn on move ment of the strand-engaging hook, means to sever the seized strand, said means com prising a shearing edge on said hook coöp erating with an edge of the slotted nose, and means to hold the severed strand to permit the coil to be slipped over the same com 65 70 75 80 85 90 95 00 05 prising a pinching edge on the opposite side of the hook to coöperate with an edge of the beveled nose. 19. In a knotter, the combination with a coil-forming end adapted to be held in one hand whereby the operator may wrap a strand about the same with the remaining hand, of means operable by the hand hold ing the implement for seizing the initial strand of the coil and crossing the same over the remaining strand, and means for holding the crossed strand to permit the stripping of the knot from the coil-forming end. 20. In a knotter, the combination with a coil-forming end adapted to be held in one hand whereby the operator may wrap a strand about the end with the remaining hand, means for holding back the coil as it is formed, means operable by the hand holding the implement for seizing the initial strand of the coil and crossing the same over the G 5 2
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10 15 25 30 35 40 As 50 1,354,668 remaining strand and simultaneously with drawing the said coil-holding means. 21. In a knotter, the combination with a coil-forming end adapted to be held in the hand of the operator whereby the operator may wrap a strand about the said end with the remaining hand, and means for holding back the coil when formed, means operable by the hand holding the implement for cross ing the initial strand of the coil and holding the same while withdrawing the coil-holding means to permit the stripping of the knot. 22. In a knotter, the combination with a coil-forming end adapted to be held in one hand whereby the operator may wrap a strand with the remaining hand, of a single member operable by the hand holding the implement for crossing, severing and hold ing the initial strand while the operator with the remaining hand strips the formed knot. 23. In a knotter, the combination with means adapted to be held in one hand whereon the operator may wrap a strand with the remaining hand, of a single mem ber operable by the hand holding the im plement for holding back the coil when formed and crossing the initial strand of the coil for the formation of the knot, and means for holding the crossed strand. 24. In a knotter, the combination with a coil-forming end adapted to be held in fixed position by the hand of the operator where on the operator may wrap a coil with his re maining hand, and a movable member acting to both cross the initial strand of the coil s hold the same for the stripping of the Knot. . 25. In a knotter, the combination with a coil-forming end adapted to be held in fixed position by the hand of the operator where on the operator may wrap a coil with his remaining hand, a movable member acting to both cross the initial strand and to sever the same after the formation of the coil. 26. In a knotter, the combination with a coil-forming end about which a coil is adapted to be formed of a member movable within the coil forming end for crossing the initial strand of the coil. 27. In a knotter, the combination with a coil-forming end about which a coil is adapted to be formed of a member movable within the coil-forming end for crossing and holding the initial strand of the coil. 28. In a knotter, the combination with a coil-forming end about which a coil is adapted to be formed of a hooked member movable within the coil-forming end for crossing the initial strand of the coil. 29. In a knotter, the combination with a coil-forming end on which a coil may be formed, of means carried by said end for reaching from a position outside the coil across the outer strand of the coil and seizing the inner strand thereof to draw the same across the outer strand, actuating means therefor and means to hold the crossed strand. 30. In a knotter, the combination with a coil-forming end on which a coil may be formed, of means carried by said end for reaching from a position outside the coil across the outer strand of the coil and seizing the inner strand thereof to draw the same across the outer strand, actuating means therefor, and means to hold the crossed strand while the coil is stripped thereover. 55 60 65 70 75 31. A knotter having, in combination, an elongated body portion having a coil-form ing nose at One end, a strand-manipulating element in said nose, a thumb lever located at the opposite end of the body portion and operatively connected to said element, and a finger-engaging bracket Secured to the body portion intermediate the ends of the latter. 32. A knotter having, in combination, an elongated body portion having a coil-form ing nose at one end, a strand-manipulating element in said nose, a thumb lever located at the opposite end of the body portion and operatively connected to said element, a fin ger-engaging bracket projecting in one di rection from the midportion of the body, and a thread guide projecting in the oppo site direction from the body near the coil forming nose. In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses. – CHARLES LEA. Witnesses: a . . RoBERT H. KAMMLER, THOMAs B. BooTH. 80 85 90 95
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