US787426A - Knotting attachment for twisting or spinning machines. - Google Patents

Description

PATEN'IED APR. 18, 1905.

H. G. BEEDE. KNOT'IING ATTACHMENT FOR TWISTING 0R SPINNING MACHINES.

APPLIOATION FILED D30. 3, 1903.

4 SHEETS-SEEET 1.

llilllllllllllll Lm i LL 1) NIH! PATENTED APR. 18, 1905.

H. G. BEEDE. KNOTTING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLICATION FILED D110. 3, 1903.

4 SHEETS-SHEET 2.

PATENTED APR. 18, 1905.

H. G. BEEDE. KNOTTING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLIOATION FILED 1330.3, 1903.

4 SHEETS-SHEET 3.

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G. Beads 6/: itlprngm No. 787,426. PATENTED APR. 18, 1905. H. G. BEEDE. KNOITING ATTACHMENT FOR TWISTING OR SPINNING MACHINES.

APPLICATION FILED DEC. 3, 1903.

4 SHEETS-SHEET 4.

' 1 g IIIIIIIIIIIII? I T a I! II: I I. I ,I N d f I I I I 1" LL I725 era 05; IIIIIIIIII I III IIII Q Q figfi e UNITED STATES Patented April 18, 1905.

PATENT @FFICE.

HERBERT (,ir. BIIIGDE, OF PAIVTUUKFI, RIIODE ISLAND.

SPECIFICATION formingpart of Letters Patent No. 787,426, dated April 18, 1905.

Application filed December 3, 1903. Serial No. 183,681.

1'0 rzJ/ IU/HHH/ it may concern.-

Ile it known that I, HERBERT (l. BIGIGDIG, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Knotting Attachments for Twisting or Spinning Machines, of which the following is a specification.

My invention relates to twisting or spinning machines, and more particularly to a knotting attachment for said machines for making nubs or knots, loops, and spiral twists in the twisted yarn.

A knotting attachment for making knots, &e., in the twisted yarn consists of two or more sets of rolls and a thread-guiding mechanism to feed and direct the threads to the twisting mechanism of a twisting-machine of any usual and ordinary construction.

In order to produce an uneven twist when two or more ends or strands of yarn are twisted together into a single twisted thread, one or more ends or strands of yarn are fed between the upper rolls and directly in front of the threzul-guide to the ring and spindle of the twisting-machine, and one or more ends or strands of yarn are fed between the bottom rolls and pass through the thread-guide and are twisted around the first-mentioned thread by the twisting motion of said thread. If the thread-guide bar is allowed to remain stationary and the bottom rolls feed the yarn more rapidly than the upper rolls feed the yarn, then the yarn from the bottom rolls is drawn or twisted around the yarn from the upper rolls and spirally-twisted yarn is produced. If the thread guide bar is allowed to remain stationary and the upper rolls are operated to feed the yarn intermittently while the bottom rolls are operated to feed the yarn continuously. a nub or knot is produced at predetermined intervals on the yarn from the upper rolls. If the thread-guide bar is allowed to remain stationary and the upper rolls are operated to feed the thread intermittently and the bottom rolls are also operated to feed the thread intermittently, a nub or knot is produced alternately first on the thread from the upper rolls by the winding on of the thread from the lower rolls and then on the thread from the bottom rolls by the winding thereon of the thread from the upper rolls. In this case neither strand of yarn passes through the guide, but both pass under it alternately. If the thread-guide bar is operated by its mechanism to guide the yarn fed between the bottom rolls onto the yarn fed between the upper rolls, various forms of nabbed or knotted yarn are produced, according to the movement of the thread-guide bar and according to the ratio of feed of the upper and bottom rolls,as will be well u nd erstood by those skilled in the art. I f at the same time that the threadguide bar is operated either or both of the upper and bottom rolls are operated intermittentl y synchrmious with the movement of the thread -guide bar and its mechanism, then twisted yarn with spirals, nubs, or knots of various forms is produced.

Hereto'forc the knotting mechanism of the class above referred to has been made a part of-the twisting-machine and when not in use has been left on the machine.

The object of my invention is to make the knotting mechanism detachable from the ordinary twisting-machine and also to improve upon the ordinary construction of the knotting mechanism.

My invention consists in certain novel features of construction of my improvements, as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a front view of one end of a detached portion of a twistinganachine, showing some of my improvements applied thereto. Fig. 2 is a detached sectional detail of the brake mechanism for the upper and bottom rolls, taken at a point indicated by line 2 2, Fig. 8. looking in the direction of arrow a, same figure. Fig. 3 is a section on line 3 3, Fig. 1, looking in the direction of arrow [1, same figure. Fig. at shows, on an enlarged scale, one of the knotting-guides shown in Fig. I. Fig. 4 is a section on line t t, Fig. 4, looking in the direction of arrow g, same Iigure. Fig. 5 shows a modified construction of the knottingguide shown in Fig. &. Fig. 6 shows the front view of a centrally-pivoted link pivotally attached at each end to the upper and lower guide-wire rod. Fig. 7 is a section on line 7 7, Fig. 6, looking in the direction of arrow 0, same figure. Fig. 8 is asectional end view of the parts shown in Fig. 1 looking in the direction of arrow (Z, same figure, and showing the knotting-motion rocker-lever and some parts not shown in Fig. 1. Fig. 9 is an edge view of the rocker-lever shown in Fig. 8. Fig. 10 shows the upper-roll stand and the stand for the guide-wire rod secured thereto with the shoe and the rod held therein detached. Fig. 11 shows the detachable connection of a supporting-arm of the knotting guide-bar. Fig. 12 shows an end view of the chain of gears shown in Fig. 14 for driving the upper-roll gear, the bottom-roll gear, and the rocker-lever gear. The inclosing case is shown in section. Fig. 13 shows, on an enlarged scale, a detached portion of one of the gears with pointed teeth and mutilated. Fig. 1 1 is a front view of the gears shown in Fig. 12 and of the driving-gear looking in the clirection of arrow f, same figure. The front part of the inclosing case is not shown. Fig. 15 is a section on line 15 15, Fig. 12, looking in the direction of arrow 6, same figure; and Fig. 16 shows a modified construction of a portion of the gearing shown in Fig. 1 1.

I have only shown in the drawings sufficient parts of a machine for twisting yarn of well-known construction, with my improvements combined therewith, to enable those skilled in the art to which my invention belongs to understand the construction and operation of my improvements.

In the accompanying drawings, 1 is a portion of the frame of the twister.

2 is the lower-roll stand, having a bearing 2 for the end or journal 3' on the lower roll 3. The stand 2 has a stand 1 thereon (see Fig. 8) for the top roll 5.

6 is the guide-wire traverse-rod stand (see Fig. 8) for the traverse-rod 7, carrying the guide-wires 8 and adapted to have a traverse motion communicated thereto in the ordinary way by mechanism of ordinary construction. (Not shown.)

Said mechanism may be similar to the mechanism shown and described in my Patent No. 661,301.

The above-described parts are common and well known in ordinary twisters for twisting yarn.

Heretofore in case the twister has mechanism for knotting the thread it has been customary to have this mechanism a permanent part of the twister, and when the twister is operated as a simple twister these parts are left on the twister, but are not used.

In the ordinary use of twisters the mechanism for knotting the thread is used only a small portion of the time, and one object of my improvements is to make the knotting mechanism independent of and readily detachable from the ordinary twisting mechanism.

In the ordinary construction of a twister with the knotting mechanism there is a rollstand which carries both the upper and bottom rolls, making a special machine. In my improvements I provide a separate stand for the upper rolls, which stand is preferably so constructed that at its lower end it straddles the regular lower-roll stand withoutinterfering in any way with the simple twister parts and can thus be readily attached and detached.

The upper-rollstand 9 is shown detached in Fig. 10. It is made yoke shape at its lower end 9, as shown, to straddle the base 2 of the lower-roll stand 2 and is detachably secured to the frame by bolts 10. The upper end of the stand 9 has a bearing 9 for the journal of the upper roll 11 and also a socket 9 for the lower end of the bracket 12 of the top roll 13.

To the rear side of the upper end of the stand 9 is removably attached by a bolt 1 1 the stand 15 for the upper traverse-rod 16, having the guide-wires 17 thereon.

The rod-stand 15 is preferably made as shown in Fig. 10. The upper end of the stand is made with the hook portion 15, into which extends the projection 18 on the shoe 18, attached to the rod 16. as is customary. (See Fig. 8.) A roll 19 in the lower part of the stand 15 furnishes a bearing for the shoe 18 on the rod 16.

By moving the rod 16 lengthwise sufficient to disengage the projection 18 on the shoe 18 from the hook 15' on the stand 15 the shoe 18 and rod 16 may readily be removed or dis connected from the stand 15 without removing the guide-wires 17 This is not the case in the ordinary construction.

The construction of the lower-rod stand 6 and the shoe on the rod 7, as shown in Fig. 8, corresponds in this instance to the construction of the upper stand 15 and rod 16, above described.

The upper traverse guide-wire rod 16 is preferably rigidly connected with the lower guide-wire rod 7, to have a traverse motion with it, by a plate or bar 20, which is hook shape at its upper end and extends over and is secured to the top of the upper rod 16 by screws 21 and is fork shape at its lower end and extends over the upper part of the lower rod 7 and is removably attached to the rear thereof by a screw 22. (See Fig. 3.)

Instead of attaching the traverse guide-wire rods 16 and 7 together by the plate or bar 20 they may be attached together by a bar or lever 23, centrally pivoted on a stud 24 and pivotally connected at each end by a screw 23 with the rods 16 and 7, as shown in Figs. 6 and 7. By this construction a traverse motion communicated to the lower rod 7 will, through lever 23, be simultaneously communicated to the upper rod 16, only in a different direction.

To the rear edge and at the lower part of the upper-roll stand 9 is removably attached a box or bearing (see Fig. 10) for the rockershaft 26 of the knotting-bar 27. The knotting guide-bar 27 (a detached portion of which is shown in Fig. 1) is intended to extend the length of the machine and is supported and secured in the outer ends of arms 28, (only one of which is shown.) The inner end of the arm 28 has preferably an open-end slot 28 therein, which fits onto and is secured to the rocker-shaft 26 by a set screw or bolt 29. (See Figs. 8 and 11.)

The knotting guide-bar 27 has a series of recesses or notches 27 in its lower edge, and in front of each notch extends a thread-guide 30, which preferably consists of two parallel strands of wire'connected together at one end by an eye to receive an attaching-screw 31. One of the strands has its other end bent and extending through the bar 27 and secured thereto, and the other strand has its end free, so that the thread can be passed under it. (See Figs. T and 4?.)

Instead of the wire guide 30, above described, I may use a plate 32, riveted to the bar 27 and slotted centrally, with one end of the slotted portion free and bent to allow the thread or yarn to be passed under it. (See Fig. 5.)

It will be understood that one, two, or more of the knotting guide-bars with the guides thereon may be used, arranged one above the other, according to the numbers and variety of knots or nubs required. The thread or yarn from the upper rolls 11 and 13 passes in front of the guides on the guide-bar 27, while one or more threads or yarns from the lower rolls 3 and 5 pass through the notches 27 in the knotting guide-bar 27 and through the guides 30 thereon to the thread in front of the guides, to form a nub 0r knot thereon, as shown in Fig. i, by being drawn or twisted around the thread or yarn from the upper rolls.

.1 will now describe the rocker-lever of my improved construction attached to the rockshaft '26 to communicate a rocking motion thereto. The rocker-lever has a swingingor pivotal adjustment to vary the vertical position of the knottingguide-bar 27. The rockerlever has also a longitudinaladjustment to vary the up-and-down movement of the knotting guide-bar 27. The rocker-lever preferably consists of three parts-the lever proper 3%, (see Figs. 8 and 9,) which has a hub 3st secured on the rock-shaft 26; the adjustingpiece 33, which has a hub 26 loose on the shaft 26 and is adjustably connected to the part 34: by a bolt 35, extending through a slot or opening 33 in the part 3i, and the engaging end 36, which is adjustable longitudinally on the part by a bolt 37, extending through a slot 3%" in the part 33. The engaging end 36 of the lever carries a pin 38, adapted to travel on the periphery of a cam 39, mounted on a stud it) and secured to the face of a gear 41 by a pin 4:), also loosely mounted on the stud 40. The position of the cam 39 and the gear a1 is adjusted to correspond to the adjustment of the parts of the rocker-lever by moving the attached end of the stud 40 in a slot i3 on the supporting frame or stand. (See Fig. 12.) The amount of the adjustment of the stud 40 is regulated by the position of the open-end slot 36 in the end 36 of the rocker-lever relatively to the end of the stud 40, on which the cam 39 is mounted. By means of the adjustment of the end 36 on the part of the rockerlever the amount of motion of the rockerlever can be varied, and by the use of different cams different movements can be communicated to the rocker-lever and through said lever to the knotting-guide-bar-supporting arms 28 and the knotting guide-bar 27.

As a part of my improvements 1 have com bined with the upper roll a brake mechanism, as shown in Figs. 1 and 2. The brake may be applied directly to the journal of the roll or to a shell or collar on the journal. 1 have shown it in the drawings applied to a shell on the journal. The shell i-L (see Fig. 2) is in this instance mounted in a box or bearing to, secured to the outer side of the upper-roll stand 9 at its upper part. The box has an extension 45' thereon with an opening 45 therein to receive a friction-shoe *6, which bears against the shell H, and a spiral spring 47, which bears against said shoe, and is compressed by a set-screw 4S,turning in a threaded hole in the cap piece or plate 49, secured by bolts to the top of the box 4:5. (See Fig. 2.) By turning the screw etS in or out the friction of the shoe 4:6 on the shell H is regulated. A similar brake mechanism may be used on the lower roll 3, if desired, and may be applied directly to the journal of the roll instead of on the shell, as above described. The shell or collar H has the driving-gear 59 splined thereon and drives the roll 11 through the connection between the roll-journal 11 and the collar H, which connection is a key 11, in this instance on the journal 11, extending into and having a clearance in a keyway H in the collar H. (See Fig. 12.)

By means of the keyway 44 the sudden stopping of the gear 59 and the collar 4-]: will not simultaneously stop the rotation of the roll 11; but the impetus acquired by said roll in its rotation will continue to rotate said roll until the key 11" reaches the end of the keyway 4A. In this way the sudden stoppingof the roll 11, with the gear 59, is prevented, and there is an opportunity also for any backlash or movement of the roll 11.

I will now describe the chain of gears shown in Figs. 12 and 1%, which may be used in connection with my improvements. 5L is the main driven gear, fast on the outer end of a short shaft 52, journaled in suitable bearings 53 on the frame or casing. (See Fig. 14:.) On the inner end of the shaft 52 is fasta gear 54, which meshes with a gear 55, loose on a stud 56, supported in and removable from a slotted bearing 57. (See Fig. 12.) Fast on the hub of the gear 55 is a change-gear 58,

which meshes with a gear 59, splined on the shell 44 on the journal 11 of the roll 11. On the end of the journal of the lower roll 3 is fast a gear 60, which meshes with and is driven by a change-gear 61, fast on the hub of the gear 64, loose on the stud 62, which is supported in and removable from a slotted bearing 63. (See Fig. 12.) The gear 64 meshes with and is driven by a gear 65, fast on a shaft 66. The gear meshes with and is driven by the gear 54 on the shaft 52. Said gear 54 thus communicates, through gear 65, gear 64, and gear 61, rotary motion to the gear 60 of the lower roll 3. (See Fig. 12.) The gear 41 for operating the cam 39 of the rocker-lever meshes with and is driven by a changegear 67, fast on the hub of a gear 7 O, which is loose on a stud 68, which is supported in and removable from a slotted bearing 69. (See Fig. 12.) The gear meshes with and is driven by a gear 71, fast on the shaft 72. The gear 71 meshes with and is driven by the gear 65, which in turn meshes with and is driven by the gear 54 on the shaft 52. Said gear 54 thus communicates, through gear 65, gear 71, gear 70, and gear 67, rotary motion to the gear 41, operating the cam 39 of the rocker-lever. (See Fig. 12.)

It will thus be seen that by the arrangement of gears above described and shown in Figs. 12 and 14 motion is communicated from a chain of three gears 54, 65, and 71, through a separate spur-gear and a changegear, to each of the three driven parts-the upper roll, the lower roll, and the cam of the rocker-lever. This arrangement of gears allows the speed of the upper roll and of the lower roll and of the cam of the rocker-lever to be regulated independently of each other and to be controlled uniformly, as desired, according to the size of the change-gears. In this way the speed of the upper feed-rolls may be increased or diminished relative to the speed of the bottom rolls and the speed of the cam, and the speed of the bottom rolls may be increased or diminished relative to the speed of the upper rolls and the speed of the cam, and the speed of rotation of the cam may be varied relative to the upper rolls or the bottom rolls, as desired. By making the change-gears 58 or 61 mutilated an intermittent feed of the thread and also an intermittent movement of the lower rolls and an intermittent feed of the thread is obtained.

In Fig. 16 is shown a modified construction of the chain of gears which may be used for certain forms of yarn. In this construction the gear 59 of the upper roll 11 and the gear 60 of the lower roll 3 are both driven through the double gear 73, which is preferably a mutilated gear, for giving intermittent motion,

through the gears 39 and 60, to the upper and lower rolls, fast on the hub of the gear 55, which is loose on the stud 56.

I prefer to make the gears 59 and 60 on the rolls 11 and 3 and the change-gears 58 and 61 with sharp or pointed teeth, as shown at 74, (see Fig. 13,) to obtain a sure meshing of the gears when the change-gears 58 and 61 have a part of the teeth removed to obtain an intermittent motion, making them mutilated gears, as above referred to.

It will be understood that the details of construction of my improvements may be varied, if desired.

I have particularly described herein my improvements in connection with twisting-machines or machines for twisting yarn; but they may also be used in connection with spinningmachines or machines for spinning yarn.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a twisting or spinning machine, the combination with the lower-roll stand, of a removable upper-roll stand carrying the upper rolls, and having its lower end yoke shape to straddle the foot of the lower-roll stand, substantially as shown and described.

2. In a twisting or spinning machine, the combination with the lower-roll stand, of a removable upper-roll stand carrying the upper rolls, and having its lower end yoke shape to straddle the foot of the lower-roll stand, and adapted to be secured to the same beam as the lower-roll stand, substantially as shown and described.

3. In a twisting or spinning machine, the combination with the lower-roll stand, of a removable upper-roll stand carrying the upper rolls, and having its lower end yoke shape to straddle the foot of the lower-roll stand, and having the rocker-shaft bearing attached to said upper-roll stand, substantially as shown and described.

4. In a twisting or spinning machine, the combination with the lower-roll stand, of a removable upper-roll stand carrying the upper rolls, and having its lower end yoke shape to straddle the foot of the lower-roll stand, and a bearing for the rocker-shaft detachably connected with said upper-roll stand, substantially as shown and described.

5. In a twisting or spinning machine, a removable upper-roll stand, carrying the upper feed-rolls and having a yoke-shape foot to extend over the foot of the lower-roll stand, and be secured to the same beam, of a guide-wire traverse-rod stand attached to the upper-roll stand, substantially as shown and described.

6. In a twisting or spinning machine, a removable upper-roll stand, carrying the upper feed-rolls, and having a yoke-shape foot to extend over the foot of the lower-roll stand, to be secured to the same beam, of a guide-wire traverse-rod stand detachably attached to the upper-roll stand, substantially as shown and described.

7. In a twisting or spinning machine, the combination with the knotting guide-bar, having recesses or notches therein, of a threadguide secured to said bar in front of a notch. and comprising a guide wire or bar attached at each end. and a second parallel guide wire or bar attached at one end and free at the other, substantially as shown and described.

In a twisting or spinning machine, the combination with the knotting guide-bar, of a tln'ead-guide for the knotting guide-bar, comprising two parallel strands of wire, connected at one end by an eye forming means of attachment for the guide, and disconnected at their other ends, with one end free to receive the thread thereunder, substantially as shown and described.

9. In a twisting or spinning machine, the combination with the lower guide-wire rod adapted to have a traverse motion, and the upper guide-wire rod adapted to have a traverse motion, of a rigid bar or plate detachably connected at each end to each of said rods intermediate the ends of each rod, to communicate the traverse motion of one to the other, substantially as shown and described.

10. In a twisting or spinning machine, the combination with the lower guidewire rod adapted to have a traverse motion communicated thereto, and the upper guide-wire rod adapted to have a traverse motion communicated thereto, of a connection intermediate said guide-wire rods, detachably connected at each end to each of said rodsintermediate the endsof each rod, to communicate the traverse motion of one to the other, substantially as shown and described.

11. In a twisting or spinning machine, the combination with the linotting guide -bar, supporting-arms therefor detachably connected with a rock-shaft, and said rock-shaft, of a rocker-lever for said shaft comprising three parts, a part fast on the shaft, a part having a pivotal adjustment thereon, and a part having a longitudinal adjustment, substantially as shown and described.

12. In a twisting or spinning machine, the combination with the knotting guide-bar, and a rock-shaft carrying the supporting-arms of said knotting guide-bar, of a rocker-lever for rocking the rocl shaft, comprising the lever proper fast on said shaft, a pivotal adjustingpiece having a hub loose on said shaft, and the engaging end adjustable longitudinally, substantially as shown and described.

13. In a twisting or spinning machine, the combination with the knotting guide-bar, and

a rock-shaft carrying the supporting-arms of said guide-bar, of a rocker-lever for said shaft, said lever made in three parts and adjustable as to its length and as to its rocking position, of a cam and gear for operating said lever, said cam and gear adjustable relatively to said lever, substantially as shown and described.

1%. In a twisting or spinning machine, the combination with a journal of the upper or lower rolls, of a shell or collar on said journal and connected therewith by a key and keyway, and having a clearance for rotary movement, for the purpose stated, substantially as shown and described.

15. In a twisting or spinning machine, the combination with a journal of the upper or lower rolls, of a shell or collar on said journal to drive the roll through the gear splined on said shell, said shell connected with said journal by a key extending into and having a slight rotary movement or clearance in a keyway, for the purpose stated, substantially as shown and described.

.16. In a twisting or spinning machine, the combination with the lower-roll gear, the upper-roll gear, and the lumtting-guide-baroperating gear, of a chain of gears for operating the same, comprising a spur-gear, and a change-gear for each of said parts, to regulate the speed of each part, substantially as shown and described.

17. In a twisting or spinning machine, the combination with the lower-roll gear, the upper-roll gear, and the knotting-guide-bar-operating gear, of a chain of gears for operating the same, comprising a spur-gear, and a change-gear for each of said parts, and an independent adjustment for each change-gear, and a chain of three gears for driving all the spur and change gears, substantially as shown and described.

18. In a twisting orspinning machine, three sets of gears for operating the upper and lower roll gears, and the gear of the knotting-guidebar mechanism, each set of gears operated from the same gear through a chain of three gears, and adjustable independently of each other, to vary the speed of the rolls, and of the knotting-guide-bar gear, independently, substantially as shown and described.

19. In a twisting or spinning machine, the gears of the upper and lower rolls, and the intermediate mutilated gears, all having sharp or pointed teeth, substantially as shown and described.

HERBERT G. BIGEDE.

\Vitnesses:

JOHN G. Dnwm', M. Haas.

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