Patent GB-235908-A (GB)
Title: Improvements in and relating to traverse mechanism for yarn winding machines
IPC: B65H54/14
Filed: 1925-06-19
Abstract: 235,908. Boesch, A. June 19, 1924, [Convention date]. Winding-machines; stop-motions; spindledriving apparatus; stop-apparatus, non-automatic; tension arrangements.-In a machine for winding yarn, thread, or like material, including wire, comprising independent spindles and guides oscillated about a shaft moved longitudinally of the spindles, the guides are oscillated by a member articulated on at least one oscillating member actuated by a cam. Means are described for stopping the spindle if the yarn breaks and when the bobbin is fully wound, and for regulating the tension of the yarn in accordance with the diameter being wound. The thread guide arm 26 is oscillated by an articulated rail 24 carried by coupled levers 21, 23 actuated by one of a series of cams 19, and is moved longitudinally of the spindle by a feeler or progression wheel device 48 connected to the guide carrier 25<c>. A double roller 25<d>, Fig. 3, on a rod 25 connected to the guide arm is operated successively by a lever 24<b>, not shown in Fig. 1, and the rail 24, to which the lever 24b is pivoted. The coupling-rod 22 of the levers 21, 23 is adjustable in the lever 23 to vary the inclination of the rail 24, and the lower end of the lever 24<b> rests on a roller in a block 24d adjustable on pins 24<f>, 24<i> on an adjustable support 24e. The amplitude of the oscillation of the arm 26 increases continuously during the formation of the bobbin. If the winding of a preliminary cone is not necessary the roller 25<d> may be adjusted so as to be operated initially by the part 24<a> of the rail 24. The screwed rod 50 of the progression wheel device is carried at one end in an adjustable slide-block 65, and at the other on a rod 69 adjustable in a nut 71 ,resting on a cam 73 on a shaft 74. The feeler 48 is fixed on a sleeve 49, Fig. 7, connected by a sheath 58 with the carrier 25<c> and provided with two rings 55, 55<a> between which two clutches 54 engaging the screwed rod are held. The sheath is connected to the carrier 25<c> by a sliding rod 59, and guides and stops ensure the rectilinear displacement of the carrier: a limited angular movement of the carrier about the rod 59 is allowed to prevent the jamming of the clutch. At the beginning of the winding, the contact of the feeler 48 with the bobbin is maintained by means of a screwed member 78 containing a plunger 78a which contacts with an adjustable incline 76 and is spring-controlled so as to compensate for any small variation in the diameter of the tubes. The cam-shaft 18 or series of cams 19 is moved longitudinally so as to bring any one of the series of cams into action by means of a lever 136, and the lever 21 is raised, so as to remove the bowls 20 from the cams during this operation, by a finger 119 which is operated to lift the rail 24 by means of a handle 125 on a shaft 126 and a rod 124, an interlocking eccentric being mounted on the shaft 126 to allow movement of the lever 136 only when the handle 125 is operated. The spindle 7 is mounted in ball bearings 27<a>, 27<b>, on sleeves 32, 37, and is driven by a friction wheel 6 provided with teeth 43 engaging recesses in a collar fixed. to the sleeve 37. The wheel 6 is moved longitudinally against a spring 45 to disconnect the spindle by means of a lever 82 connected by a rod 85 to a three-armed control lever 79, fixed to the cam 73 and retained in normal working position by a catch 81. Upon completion of the bobbin, the shaft of the yarn guide engages a stop 91 on a rod 89 which, by means of a lever 86 lifts the catch 81 and releases the lever 79, whereupon a spring 93 operates the lever 82 and disconnects the spindle. Simultaneously the cam 73 is turned and allows the slide block 65 to fall and remove the feeler 48 from the bobbin. A coarse adjustment for the stop 91 is effected by inserting it in one of a series of holes in the rod 89 and a fine adjustment by varying its inclination. The rod 89 is also moved to stop the spindle when an end breaks by means of a lever 117 operated by an arm 110, Fig. 10, secured to a shaft 111 carrying an arm 109 engaged by the yarn. The arm is controlled by a, torsion spring 114 adjustable by rotating a disc 113, which is held in position by the engagement of a pin 115 with one of a series of holes 116. The yarn passes around a tension pulley 96 pressed against nuts on its supporting shaft bv a spring 98, the tension of which is varied during each chase by a nut 100, which is rotated on a threaded sleeve 99 by a rod 101 connected by lever mechanism 107, 108 to the lever 21. The initial tension is adjusted by turning the sleeve 99, which is secured by the engagement of a pin 104 with one of a series of holes in the flange 106. In place of the pulley 96 discs pressed by the spring 98 may be used. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also arrangements wherein the rail may be articulated on a pivoted arm and on a lever actuated bv the cam, or may lie on a fixed part and on a lever operated by the cam or may lie on a straight arm, which may be the lever 24<b>, and on a cranked lever. This subject-matter does not appear in the Specification as accepted.