Patent GB-721466-A (GB)
Title: Improvements in textile twisting and winding apparatus
Inventor: THOMAS PACIFIC JAMES
IPC: D01H13/16
Filed: 1952-01-21
Abstract: 721,466. Yarn twisting and winding apparatus-stop motion. U.S. TEXTILE MACHINE CO. Jan. 21, 1952, No. 1680/52. Class 120 (2). A yarn winding and twisting machine of the multiple deck type has a supply spindle, a yarn receiving spool and a yarn breakage detector means in close relationship, spring means for yieldingly holding the yarn supply spindle when in operative position against a spindle drive, spring means for holding the yarn receiving spool in operative position and a movable operating member controlled by the yarn breakage detector means and is characterised in that the operating member extends between, and positively connects the spring holding means of the yarn supply spindle and the yarn receiving spool, for effecting substantially simultaneous release and movement of the yarn supply spindle and the yarn receiving spool from an operative position to an inoperative position in its movement in one direction, and effect movement of the yarn supply spindle and yarn receiving spool from their inoperative to their operative position in its movement in the opposite direction. As shown a control wire 6a is so arranged that when the yarn 4 breaks, the yarn guide element 6 will move from between the legs of a U-shaped yarn guide 7 and swing downwardly to the position shown in Fig. 5. In doing so it will bring a trip stud 71 into contact with leg 68 of tripping rod 67 so that the latter is pulled upwardly in a lengthwise direction. This causes swingable latch 61 to be turned upwardly about pivot stud 62 to disengage the trip pin 63 from the notch 64 on the bar 38 and will permit the crank arm 53 to be swung downward by the action of the tensioned spring 55 thus rotating the shaft 52 and the gear wheel 51 which through engagement with the rack section 38a will cause the bar 38 to move downwardly. This action releases the tension of the spring 55 and permits the slide bracket 57 to move downwardly so as to disengage the spindle 1 from the drive belt 2 and bring it into contact with the brake member BM. The sliding movement of the bar 38 causes the threearm member 35 to be partly rotated about pin 34 so that a roller 36 will force the arm 40 connected to the yoke 13 carrying the yarn receiving spool 10 and thus move said spool or the yarn package thereon away from the driving drum 11. The apparatus may be reset by the resetting knob 49. For leading the yarn on to the receiving spool 10 an arm 20 (Fig. 11) having a guide 8 is provided. The arm 20 is pivoted on a support pin 21 fixed in a bracket 22 in turn pivotally mounted by a stud screw 22a to a rail which reciprocates along axis x-x (Fig. 11.) To the bracket 22 is fixed on an extension 22b a roller 30 which rides in a stationary but adjustable track 31 so that the roller 30 is constrained to move along axis z-z (Fig. 11). Thus reciprocation of the arm 20 by the rail 23 (Fig. 5) will cause the arm to swing about the pivots 22a to the extreme positions shown in dash-dot lines in Fig. 11 and since the arm 20 can also be swung upwards about axis y-y a package with tapered ends will be built the degree of taper on the ends being determined by the angle between the axes x-x and z-z.