Patent GB-704719-A (GB)
Title: Improvements in or relating to a winding machine
IPC: B65H63/036
Filed: 1952-03-21
Abstract: 704,719. Winding yarn &c. EATON MANUFACTURING CO. March 21, 1952 [March 24, 1951], No. 7342/52. Class 120(2) A yarn &c. winding machine comprises a winding spindle 14 driven through a clutch 48 actuated by a magnetic coil 57, a brake 52 engageable with the' spindle, such brake being actuated by a magnetic coil 62, an electric control circuit including the coils 57, 62, means for alternately energizing and de-energizing the coils 57, 62 and.switch means 94 controlled by the tension of the yarn &c. being wound for bringing the alternating action of the coils 57, 62 into operation. The clutch comprises a loose member 46, driven by the prime power source: through a belt 70, and a plate 20 splined .to the spindle 14, whereas the brake comprises a fixed member 50. Friction linings 68, 70 are secured upon the plate 20. A belt 40 driven by the spindle 14 drives the traverse cam 30 through a gear box 38. Yarn 72 to be wound passes through a tension gate 74, thence about a pulley 80 on a lever 88 and thence about a guide pulley 82 influenced by a tension spring 138. When a tangle in the yarn reaches the tensioning devices, the yarn tension increases and the lever 88 closes the switch 94. This completes (a) a circuit through contacts 120, 122 of switch 116 and the heater element 142 of switch 102 to ground, and (b) a parallel circuit through the coil 146 of the relay 108 to ground, and (c) a further parallel circuit through the heater element 150 of the main switch 104 to ground. Circuit (b) above moves a clapper in the relay 108 to separate contact 130 from contact 128 to break the circuit to the clutch coil 57 and move the contact 130 into' engagement with the contact 132 to energize the brake coil 62. The clapper, in its further movement. opens the switch 134 to break the circuit 152 in which it is arranged. After the passage of say 2-5 seconds depending on the setting of the heater element 142, the contacts 156, 158 close to make the circuit 154 to the coil 160 which opens contacts 120, 122 (to disrupt the circuit to the heater 142) and closes contacts 118, 120 to maintain the coil 160 energized. The contacts 162, 164 of the switch 124 are also moved apart to assure, further, the disruption of the circuit to the heater 142. ,With the opening of contacts 120, 122, the coil 146 is de-energized and switches 126, 134 are tripped reversely so that the clutch coil 57 is re-energized and the brake. coil circuit 152 is opened. The 'switch 134 is also remade thus again supplying movement to the coil 146 whereby the cycle of energizing the coils 57 and 62; and deenergizing them, is'repeated. If this intermittent tugging action upon the tangle in the tension mechanism is successful in eliminating it and passing it through that mechanism, the switch 94 is opened and the "on and off" relays are restored to the Fig. 5 position, the clutch coil 57 being maintained through the contacts 128, 130 and the line 136. If, however, in the period of setting of the heater switch 104, the tangle is still. not removed, the contacts 166, 168 open and the machine is stopped. In a modified form, the clutch and brake device comprises an eddy-current clutch element which will slip to. allow constant linear speed of winding. The electrical control system may be modified to include. a trip switch in place of. the main switch 104 which trip switch when the yarn. tension becomes excessive, completes a direct circuit to the brake coil 62.