Patent GB-191201437-A (GB)
Title: Improvements in and relating to Split Drum Winding Machines.
IPC: B65H54/28
Filed: 1912-01-18
Granted: 1913-01-20
Abstract: 1437. Soc. E. & G. Brabant & Vandier. Nov..3, 1911, [Convention date]. Winding-machines; tension arrangements; stopmotions; stop apparatus, non automatic.-In splitdrum winding - machines, a tube is interposed between the bobbin and the drum so that the line of contact and the line of winding are the same and the path of the axis of the bobbin is arranged in the plane containing this line and the axis of the split drum. Each winding-head comprises a pair of standards 1 having machined faces 3 upon which rest the ends of the spindle 4 carrying the bobbin 5 on which the thread is to be wound and which receives motion by contact with the intermediate tube 6, one end of spindle 8 of the tube 6 resting on one of the faces 3 and the other being bent at right-angles and engaging with a recess 9 in the other face. A shaft 2 carries two sectors 10 having slots 11 in which the ends of the bobbin spindle engage, the depth of the slots being such that the ends of the spindle are not lifted from the faces 3 during their travel along the same; there is a number of slots 11 so that the initial pressure between the bobbin and tube can be adjusted. A grooved pulley 34 fixed to the shaft 2 has a series of recesses 35 in one of which is lodged a crosspiece 36 on a cable &c. 37, the other end of which is fixed to a block 27 adjustable along a rod 26 freely mounted on a shaft 18 ; another block 29 adjustable along the rod carries a bent wire 30 having an horizontal portion 30' parallel to the axis of the split drum. The block 27 has an arm 28 which passes underneath a rod 22 freely mounted on the shaft 18 and normally resting on a stop 25. An adjustable block 38 on the rod 22 supports an horizontal rod 39 around which is a coiled wire 40 terminating at one end in an eye 41 and at the other supporting a rod 43 passing through a slot 44 in the rod 22 and hanging above a rotating shaft 45 carrying projections 46. A projection 12 on one of the standards supports a spindle 13, on which is freely mounted a pendulum 14 having a handle 17 and ending in two arms 15, 16, the arm 16 normally bearing against an arm 24 on a block 23 adjustable along the rod 22. The thread passes over a roller 42, through the eye 41, and under the wire 30<1>, to the drum and bobbin. As the bobbin grows, the spindle 4 moves along the faces 3 and causes the sectors to rotate, thus moving their centres of gravity nearer to the axis 2 and consequently gradually decreasing the pressure of the bobbin against the tube 6. The rotation of the sectors causes the pulley 34 to rotate, and consequently the wire 30 rises, thus increasing the angle between the parts of the thread at the wire 30<1> and gradually decreasing the tension of the thread. When the bobbin has attained its full diameter, the arm 28 encounters the rod 22 and raises it, thus relieving the pendulum arm 16 from the arm 24 ; the pendulum rocks to the left and a curved part 14<1> thereon bears against the tube 6, brakes it and shifts it angularly to stop the winding. When a thread breaks, the rod 43, which is heavier than the upper part of the wire 40, descends and comes into the path of the rotating projections 46 which cause the rod 22 to rise and stop the winding as before. The shaft 18 carries a handle 32 and a lever 31, and when a knot is required to be made, the bobbin is withdrawn by pressing the handle down, the lever thus raises the sector until the end thereof engages a notch 33 in one of them. To start the head, the handle 17 is moved so as to free the arm 24 from the arm 16 and allow the end thereof to be brought back against the arm. The shaft 18 extends through all the heads of the machine and has a handle 20 and lever 19 fixed thereto between each pair of standards; to stop all the heads simultaneously, one of the handles is operated to cause pins 21 or the lever 19 to lift the rods 22; motion of the handle 20 in the opposite direction lowers the levers 19 which act on the arms 15 of the pendulum, and restores the parts to their normal position. To stop an individual head, a handle 22<1> attached to the rod 22 is operated.