Patent GB-114737-A (GB)
IPC: B65H63/036
Abstract: 114,737. Wade, H., (Universal Winding Co.). July 10, 1917. Winding - machines; stop motions; stopapparatus non - automatic; thread-gudies.- In a drum winding- machine, the cop or package being wound is supported in a frame which is pivotally mounted to swing towards and away from the driving roll. A stop-member is mounted adjacent to the cop and concentrically with the frame and is prevented by dogging-means from moving towards the driving-roll. The copholder is normally urged towards the stop member away from the driving roll by yielding means, but is prevented from engaging with the stop member by detent means, which is released when the yarn breaks or runs slack to allow the cop to be lifted from the driving-drum and braked. The cop-tube or mandrel B is supported between centres V, V<1> in a pivoted frame U. One centre V<1> is withdrawn by the lever J to allow a key v<1> on the other centre to be inserted in a cross slot b. The yarns y are led through tension grids 45 over the ends 55 of drop wires 51 and a guide-bar 56 to the traversing guide G. The guide G is curved to lie close to the periphery of the driving-drum D and is carried by two rods r, r<1> and traversed by engagement with the cam U. The frame U is pivoted on a cross rod u and is substantially rectangular in shape, the side arms being connected by pieces 2, 3. A brake arm N also is pivoted on the rod u and carries a brake shoe n adapted to engage a brake disk M on the centre V which rotates with the cop. The arm T of the frame U has pivoted to it a hand-lever z<1>, the lower part 4 of which is substantially triangular in shape and is pivoted to a lever Q which hangs loosely from the arm N. The lever z<1> is controlled by a spring I which is anchored to a finger hold Z<1> on the arm T and tends to raise the frame U relatively to the arm N to bring the disk M against the brake n. When the machine is winding, a spring detent 10 sliding along the arm T engages a notch 7 in the arm. 4 of the lever z<1> to loch the frame U and arm N together with the brake out of action. The detent 10 is connected by a bell-crank lever 15 to a slide bar 16, supported by a pin 18 engaging a V-slot 19. This bar carries, at its outer extremity, a knock-off lever 22 in channel form connected to the drop wire devices 51. This lever is pivoted at 23 and is partly cut away at 24 to form a cross-bar 25 adapted to engage with the teeth of a ratchet wheel 26 on the cam shaft S. To prevent undesirable movement of the frame U and cop B towards the driving drum, the spring 27 controlling the detent 10 is attached to a lever 28 secured to a rod 29 pivoted in the brake arm N and having a wedge-shaped extension 30 sliding in the groove of a fixed quadraut 32. The lever 28 has an extension 35 bevelled at 37 and adapted to be engaged by a latch member 38 on the pivot 5 of the lever z<1>. The latch 38 is bent double at 42 and provided with a stop 43 resting against the lever z<1> and a counterweighting arm 44. This latch is adapted to move over the end 35 of the lever 28 as the hand-lever z<1> is operated and temporarily to release the extension 30 from the quadrant 32 to allow the cop and the frame U to move towards the driving-drum, in preparing the machine for winding. The drop wires 51 are pivotally mounted on a rod 46, forming part of a rectangular frame adapted to pivot about the axis of the rod 46, and having an extension 60 which normally rests against a stop 61 under the influence of a spring 62. Beneath the drop-wires is a bail 66 pivoted on the rod 46 and having an extension 69 to which is hooked a link 72 connecting it to the knock-off lever 22. When an end breaks or runs slack, the drop-wire 51 falls on to the bail 66 and tilts it, to raise the outer-end of the lever 22 and to cause the ratchet 26 to engage the cross bar 24. This draws forward the rod 16, and operates the lever 15 to withdraw the detent 10 from the notch 7 in the lever z<1>. The lever z<1> then swings under the action of the spring I to move the frame U relatively to the arm N and, as the arm N is held by the dogging-mechanism 30, 32, the cop is lifted from the driving- drum and the brake disk engages the shoe n. The knock-off lever 22 can be operated by hand if desired. The outer end of the bar 16 is forked and engages the end of a rod 82 connected to a threadlifter 80. As the bar 16 is moved, the pin 18 raises it and causes the thread-lifter to raise the yarn out of the guide, which continues its movements. To re-start the machine, the hand-lever z<1> is depressed far enough to cause the detent 10 to engage a notch 8. This frees the cop tube from the brake to allow the threads to be readily attached, but as the catch 38 is not thereby moved far enough to release the dogging mechanism, the cop is still held out of contact with the driving drum D. Further movement of the hand-lever z<1> releases the dogging-mechanism and the cop tube is lowered on to the drum D the detent 10 then engaging the notch 7 as in normal winding. Further movement still carries the extension 39 into contact with the end 35 of the lever 28 and releases the dog 30. The thread-guide head g is so shaped that in its reciprocation it rides in under the threads lowered by the lifter 80 and is threaded automatically. Reference is made to Specification 10813/14.