US1033804A - Stop-motion for twisting-machines and the like. - Google Patents

Description

T. J. KELLY. sToP MOTION FOR TWISTING MACHINES AND THB LIKE.

APPLICATION FILED SEPT. 10| 1910.

1,033,804. v Patented July so, 1912.

2 sHNETs-sHENT 1. O O

T. J. KELLY.

STOP MOTION FOR TWISTINGMAGHINBS AND THE LIKE.

APPLIOATION FILED SEPT. 10, 1910.

1,033,804. Patented July 3o, 1912.

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COLUMBIA PLANDURAPM co..wA5HlNTON, D. C.

ETE@ STATTENT FFIGE.

TIMOTHY J". KELLY, OF PASSATO, NEW JERSEY, ASSIGNOR TO BRIGHTON MILLS, OF PASSATO, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

STOP-MOTION FOR TWISTING-MACHINES AND THE LIKE.

Specification of Letters Patent.

Patented July 30, 1912.

Application led. September 10, 1910. Serial No. 581,350.

and the Like, of which the following is a.

specification.

The object tion of an attachment such as twisting machines, spinning machines, looms, beam winders, spoolers, or the like, in which the mechanism alone, or the mechanism and yarn together will.l be stopped in the event of the breakage or running out of a yarn or the overrunning of a bobbin.

A further object is to produce a device which may be used upon an apparatus employing a plurality of spools, in which, if a single yarn breaks leading` to any spool, the mechanism of that spool alone will be stopped, while the others will continue in motion.

These and further objects will appear from consideration of the embodiment of my invention set forth in the following specification and accompanying drawings, in which,

Figure 1 is I have in view is the produca front elevation of a portion of a twisting frame of a Brownell form of twister, embodying my invention. Fig. 2 is a section on the line 2-2 thereof. Fig. 2a is a detail plan view of a latch. Fig. 2b is a section on the line b-b'of Fig. 2a. Fig. 3 is a section on the line 33 of Fig. 2. Fig. 4 is a diagraphic view of the twisting and winding mechanism in plan. Fig. 5 is a sectional View of the same. In Figs. 4 and 5 the parts are spaced to be in operative position. Figs. 6 and 7 are views similar to views 4 and 5, respectively, but showing the parts in stopped position. Fig. 8 is a diagraphic view of an embodiment of my invention applied to a ring twister.

In all of the views, like parts are designated by the same reference characters.

In Figs. 1 and 2, which showtwo elements of a Brownell twister, the following portions areof the well known type: 1-1 are the bobbins, 2 the spool, 3 the flier arms, 4 the spool spindle, 5 the twisting tube, 6 the flier head carrying the pinion 7 8 is the pinion on the twisting tube. On the lower end of the twisting tube 5 is the pinion arm for textile machines 9, carrying the sheaves 10, such sheaves being supported on small shafts mounted in bearings in the pinion arm 9. The upper extremities of these small shafts carry gears 11, which engage with a pinion 12 on the flier head 6. The flier head is loosely mounted on the twisting tube, and carries a skirt which surrounds the gears 11 and incloses the latter. The gears and pinions 7 and 3 are actuated by gears 13 and 14, respectively, through the intermediary of gears 15. The gear 13 is rotated by bevel gearing shown in Fig. 2, from a shaft 16, while the gear 14 is rotated by bevel gearing from the main drive shaft 17. These two shafts extend across the frame. The gears 13 and 14 rotate in the same direction but at different rates of speed, as depends upon the size of the spur gears 18 and 19, on the shafts 16 and 17, respectively, such gears determining the relative rate of speed of the shafts 16 and 17 The twisting tube 5 passes through a lock sleeve 20, supported in the main frame 21. This lock sleeve 20 is in the form of a block, having an opening for the twisting tube eccentrically within it, as shown. The lock sleeve lies within a round opening in the frame, and is free4 to turn therein, Ybut the turning movement is resisted by mechanism about to be described. This block is supported upon the upper face of the pinion 8, and i's so mounted that it will have a tendency to rotate within the opening in the main frame. This tendency to rotate is resisted by means of a device which comprises an arm 22 projecting from the sleeve 20, which lies above the main frame and normally engages with a latch 23 mounted on a shaft 24.

The shaft 24 extends the entire length of the machine, and the latches 23 are each provided with a slot 23al in which works a pin' 24EL carried on the shaft. When the shaft 24 is rotated by hand in one direction or the other, all of the latches are either thrown out of or into engagement with their coperating arms 22. This is for use in starting and stopping all the spools.

The preceding description applies to the ordinary Brownell twister.

The preferred embodiment of my invention applied to this well known apparatus is as follows:

According to my invention, I provide means for automatically moving each latch 23 out of the path of movement of the arm when a yarn runs out or breaks or a bobbin overruns. Vhen this latch 23 is moved out of the path of the arm 22, the lock sleeve 2O will rotate, owing to the friction of the sleeve on the upper face of the pinion 8. As the bearing in the sleeve 20 is eccentric, it is apparent that the rotating of the sleeve will move the shaft and the twisting tube 5 to one side and will disengage the teeth of the pinions 8 and 9 from the gears 15. This will stop that particular flier and spool. The particular means chosen for illustration for moving the latch comprises arms, which are pivotally connected to the latch and have loops or hooks under which the yarns pass, the arms being thereby held elevated above a constantly rotating` tripping` device. The details are as follows: The latch 23 is loosely carried upon the shaft 24 which is mounted in suitable bearings as described, and said latch is provided with a crank 25 by means of which the latch may be turned on the shaft and the end of said latch lifted out of the plane of the path of the arm 22. This crank has an extending arm 26 parallel to the shaft 24 and carrying a plurality of thin arms 27 which are pivoted upon said arm 26 and extend out to one side. The crank 25 thus serves as a movable or rocking pivotal support for the arms 27 These arms 27 are best made of sheet metal, and have openings for the passage of the extendingarm 26 and are separated by washers, as shown. The number of these arms 27 is kproportioned according to thenumber of yarns which are twisted in that particular element of the twister. Each of these arms is provided at its other extremity with a loop 28, under which the yarn passes, and by means of which the arm is held elevated. A bar or abutment 29 is located at a fixed point and is provided with vertical rods or separators 30, which form guides for the arms 27. Each separate yarn 31 passes down from its bobbin l under a loop 28, there being, as explained, a separate loop and arm 27 for each yarn. The yarns are then concentrated to a hook 32, and then pass around the knob 33 and guide pulley 84.

Reference being had to Fig. 2, it will be seen that there are two sets of loops 28|, 28, arranged at different distances from the points of pivoting of the arms 27 The drawings represent the loops 28 as staggered, or arranged inward and outward on alternate arms, in order to get a sufficient amount of space, the loops being wider than the arms. The yarns engaging with the loops 28 will hold the arms 27 in elevated position, as shown. The tripping device 35 is in the form of a fluted roller of the cro-sssection shown, being analogous to a ratchet wheel. This roller is mounted upon a shaft 36,v which is provided with mechanism for rotating it continuously, at considerable speed, in the direction of the arrow. The arms 27 are each provided with a depending finger 37, of such a size and so arranged that when an arm isallowed to drop, the linger will come within the path of movement of one of the wings of the tripping device and will be engaged thereby. The arms are normally held suspended by the tension of the yarns, but should any one yarn run out or break, or any one bobbin overrun, that particular arm 27, with which the yarn engages, will drop, and the finger 37 on that arm will be engaged by one of the wings of the tripping device. The effect of this will be to flip or suddenly and quickly move the arm 27 to the right, and move the extending arm 26 of the crank 25 also to the right, as shown in broken lines in Fig. 2. This will move, as will be evident, all of the other arms 27 which are supported on that particular crank. These arms will be thrown against the fixed abutment 29 and their upper ends will be elevated and their lower ends lowered to the position shown, and at the same time the crank 25 is turned past its center. The tension upward exerted by all the other yarns and the weight of the arms 27 acting on the extending arm 26 will hold the crank in this position. This will have the effect of elevating the latch 23 and will permit the arm 22 to turn as hereinbefore described, thereby disengaging and stopping the iiier and spool mechanism.

Due to the arms 27 resting against the abutment 29 and due to the tension of the yarn in the upward direction, the fingers 37 will be held clear of engagement with the tripping device after the latch 23 has been disengaged from the arm 22. The effect of the operation will be almost instantaneous and the flier will be arrested before the broken yarn has passed over the guide pulley 345. The break can be repaired or a new bobbin substituted, and the flier and spool then started up simply by turning the lock sleeve 2O backward until the arm 22 strikes against a stop 22EL and the pinions 7 and 8 engage with the gear l5, and by then turning the crank 2 5 back to its normal position.

Then the flier and spool mechanism will be started and the twisting and winding will continue. The positiveness and certainty of operation is increased owing to t-he toggle effect of the partial rotation ofthe arm 26, around the shaft 24, from the position shown in Fig. 5 to that shown in Fig. 7. When in the latter position, the weight of t-he arm 26, together with the weight of the arms 27 is utilized in keeping the lever 25 in the disengaged position.

Fig. 8 illustrates a modification of the invention applied to a twister of the ring type. In this form of twister, the yarn is fed to the spool by the engagement of two rolls. 3S is the constantly rotating roll. 39 is a roll which is rotated by frictional engagement with the roll 88, and holds the yarns between it and the roll 38, and 40, 40 are fixed guides for the yarn. The drawing illustrates only a single arm, but it is to be understood that the same number of arms 27 are employed as in the apparatus just described. The connection of the arm 27 is slightly diferent from that described in connection with the Brownell twister. It is as follows: Apivot4l carries an arm 42, upon which is a pin 43 which corresponds to the extending arm 26 of the preceding embodiment of the invention. Upon this pin are strung the arms 27. A vertical link 44 is also pivoted to the arm 42 and carries a weight 45. It also carries a pin 46. This pin engages between the tines of the forked extremity of a lever 47, pivoted at 48. This lever carries the bearings of the roll 89. The other end of the lever carries a link 49, the lower extremity of which engages with the under side of the spool. This form of twister has independent mechanism (not shown) for rotating the spool, and the purpose of the link 49 is to lift the spool out of engagement with this mechanism when the twisting ceases. It is to be understood that the constantly rotating roll 38 may continue across the entire frame, but there should be one roller 39 and lever 47 in connection with each spindle. The operation of the mechanism is as follows: When the parts are in the position illustrated, all of the arms 27 will be held out of engagement with the tripping device by the loops of the yarns, as described. Should one of these yarns break or an end appear, or should a bobbin overrun or become unwound, one of the arms 27 will drop as before, causing its finger to come into engagement with the wing 35 of the tripping device. This will turn the lever 42 toward the tripping device, thereby lifting the weight 45 and swinging the lever 42 past the center, and the weight in dropping will rotate the lever further in the clockwise direction. This will have t-he effect of sliding the pin 46 between the tines of the fork on the lever 47 depressing this end of the lever. This will lift up the roller 39 from contact with the roller 38, and will also lift up the spool, thus terminating the twisting and winding operation. A fixed abutment (not shown) similar to the abutment 29, may be employed. And in addition to the twister as described, the invention may be applied to a doubler or other textile machine, by appropriate modifications.

In accordance with the provisions of the patent statutes, I have described the principle of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative and that the invention can be carried out in other ways.

I-Iaving now described my invention, what I claim as new and desire to secure by Letters Patent, is

l. In a textile machine having a plurality of elements, means for controlling the operation of each element independently of the other elements, and a stop mechanism for each element comprising a plurality of thin arms, a common pivotal support for one end n of said arms operatively connected to said ycontrolling means, means on each arm for engagement with a yarn whereby t-he free ends of said arms are normally held suspended, and constantly moving means arranged to coperate with and pull any arm when the free end thereof is allowed to drop and to thereby move said pivotal support and operate the controlling mechanism for that element.

2. In a textile machine having a plurality of elements, means for controlling the operation of each element comprising a rotatable sleeve and a latch cooperating therewith, and a stop mechanism for each element comprising a plurality of arms, a pivotal support for Said arms operatively connected to said latch, means on each arm for engagement with a yarn whereby the free ends of said arms are normally held suspended, and constantly moving means arranged to coperate with any arm when the free end thereof is allowed to drop and to thereby move said pivotal support and operate the controlling means for that element.

3. In a textile machine having a plurality of elements, means for controlling the operation of each element comprising a rotatable sleeve and a pivot-ally supported latch coperating` therewith, and stop mechanism for each element comprising a plurality of arms, a pivotal support for said arms mounted on said latch, means on each arm for engagement with a yarn whereby the free ends of said arms are normally held suspended, and constantly moving means arranged to coperate with any arm when the free end thereof is allowed to drop and to thereby move said pivotal support and operate said latch.

4. In a textile machine having a plurality of elements, means for controlling the operation of each element independently of the other elements comprising a rotatable sleeve and a pivotal latch coperating therewith, and a stop mechanism for each latch comprising a plurality of thin arms pivotally supported at one end on said latch, means on each arm near the free end thereof for engagement with a yarn whereby the free ends of said arms are normally held suspended, and constantly moving means ar' ranged to coperate with and pull any arm when the free end thereof is allowed to drop and to thereby move said latch.

5. In a textile machine having a plurality of elements, means for controlling the operation of each element independently of the other elements comprising a rotatable sleeve'.

and a latch coperating therewith, and a stop mechanism coperating with each latch comprising aplurality of arms pivo-tally supported on said latch, means on each arm near the free end thereof for engagement with a yarn whereby the free ends of said arms are normally held suspended, said means on the different arms being stag-y arms, means on each arm near the free end thereof for engagement with a yarn whereby the free ends of said arms are normally held suspended, constantly moving means arranged to coperate with and pull any arm when the free end thereof is allowed to drop and to thereby move said pivotal support, and a fixed abutment beneath said arms arranged to support the latter' out of coperative relation to said constantly moving means after said pivotal support has been moved. l

7. In a stop mechanism. for textile machinery, a plurality of thin arms, a common pivotal support for one end of said arms, a lixed abutment beneath said arms, separating means carried by said abutment and extending between said arms, and means on each arm near the free end thereof for engagement with a yarn.

This specification signed and witnessed this th day of August, 1910.

TIMOTHY J. KELLY. Witnesses:

E. I-I. SEDGWIGK, W. A. SIGREES.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, 1). C.

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