Patent GB-191317230-A (GB)
Title: Process of and Machine for Producing Folded and Bound Skeins of Thread or Yarn usually called "Dolls" or "Echevettes".
IPC: B65H54/56
Filed: 1913-07-28
Granted: 1914-07-28
Abstract: 17,230. McGee & Son, W., and Walls, A. G. July 28. [Cognate Application, 5189/14.] Reeling-machines.-Relates to the production of folded and bound skeins of yarn or thread, usually called "dolls or Úchevettes." The yarn from a bobbin 12, Fig. 1, passes over guide rollers and through a tubular guide 10, disposed between the parts of an endless chain 7, to a guide eye 9 which is carried by the chain and by which the yarn is laid over the upper and lower pegs 40, 42 of the folding - apparatus. The chain 7 is carried by sprocket-wheels 6, 8, the wheel 6 being driven from a counting-shaft 2 geared to a shaft 100 carrying fast and loose pulleys. The counting- shaft is arranged to stop in its initial position, after a predetermined number of turns have been wound on the pegs 40, 42, by being geared, through a change-wheel, to a disk 17 having a peripheral notch 18 into which a lever 19 falls during the last turn of the counting-shaft. This movement of the lever allows a projection on the belt-fork slide 20 to escape and another projection 93 on the slide to encounter the lever 19 ; this allows a spring to shift the belt 92 partly on to the loose pulley 94. The counting-shaft is thus driven with difficulty so that on the last turn being completed, the lever 19 drops into a notch 21 in a disk 22 on the fast pulley and liberates the projection 93, the spring shifting the belt entirely on to the loose pulley and stopping the machine without shock. The completion of the movement of the belt-fork sets into operation a one-revolution mechanism, such as is used in metal-punching machines, which actuates a well-known device 25 to cut and hold the end of the yarn from the bobbin 12. The carriage 28, which carries two sets of pegs, is then swivelled by a rack and pinion 26, 27 to bring the front set of pegs opposite an adjacent winding-apparatus, and the. operator actuates a second one-revolution mechanism which drives a cam 29 of the folding- apparatus. The upper peg 40 and another peg 41 midway between the ends of the skein are mounted on pivoted arms 38, 39 while the lower peg 42 and a peg 43, midway between the pegs 41 and 42 are fixed, the axles of the arms 38, 39 being provided with torsion springs and connected by cords 36, 37 with levers operated, through links and levers, from the cam 29. The motion of the cam causes the arm 38 to fold the skein over the peg 41 and bring the peg 40 against the peg 42, and then causes the arm 38 to double the folded bank over the peg 43 until the peg 41 comes against the peg 42, Fig. 4, after the folded skein has been removed, further motion of the cam allowing the pegs to resume their extended position. The folded skeins are each placed in a clamping-device 44 between a fixed and a spring-controlled jaw and the projecting ends of the skeins are bound with several turns of thread by flyers 50, 51 carried in braced rails 52, 53 which are driven by four cranks 54 journaled in fixed rails, the two cranks 57 being driven from a shaft 60 geared to an intermittent wheel 62 driven from the cam 61 of the binding-apparatus. The cam 61 is driven by a third one-revolution mechanism, and, after the flyer frame has made a definite number of turns, the intermittent gear remains at rest and the cam 61, through suitable levers &c., operates the levers 64, 63 controlling the thread holding and cutting and sewing devices. Each thread holding and cutting device comprises a reciprocating frame 67 carrying swivelling heads 65, 66 and hooks 68, 69 sli3able in the heads and connected to a reciprocating slide 70. The ends of the binding-threads 71, Fig. 6, are clamped, while the ends of the skeins are being bound, between the hooks 68, 69 and springs 75. The lever 64 moves the slide 70 downwards, the frame 67 being held in its guides by a spring until the hooks assume a parallel position ; they then release the ends of the binding-threads and a projection on the slide meets a stop on the frame which thereupon moves with the slide. The lever 63 meanwhile pushes up the carriage 76 of the sewing-device so that the needles 73, 74 pierce the skein ready to receive the ends of the binding - threads. The slide 70 then moves upwards, the frame remaining at rest so that the hooks are withdrawn into the heads 65, 66, thus drawing the threads 71 into the needles and cutting the threads from the flyer eyes against knife-edges on the heads ; the carriage 76 thereupon descends and the needles sew the severed threads into the skein. The cut ends of the thread from the flyer eyes are clamped between the hooks and springs by the continued upward movement of the slide, ready for binding the succeeding skein, and a projection on the slide meets a stop on the frame, which is thus carried to its initial position.