Patent GB-190709686-A (GB)
Title: Improvements in Machines for Winding or Spooling Wire, Thread or the like
Filed: 1907-04-25
Granted: 1908-02-06
Abstract: 9686. British Thomson-Houston Co., [General Electric Co.]. April 25. Winding - machines.- Relates to electricallydriven machines, especially applicable for winding fine wire on to spools in. connexion with wire-insulating machines. T h e material is delivered from a spool or bobbin driven positively by belt gearing and adjustable friction gearing 15, 16, Fig. 2, from a motor 11, Figs. 2 and 9, such as a constant-speed motor of the shunt-wound type, and passes between tension rolls to the winding-spool 18, which is driven directly from a variable-speed, preferably a series-wound, motor 10, a constant feeding speed of the material at a practically uniform tension being thus effected. The material is laid on the spool by a guide 19 adjustably secured to an arm 44 pivotally mounted on a head 26 engaging a screw 27 which is rotated alternately in opposite directions by a friction disk 31 driven by bevel-gear from the spool spindle and arranged with clearance between disks 29, 30, Fig. 5, secured to a sleeve splined on the screw shaft. The rotation of the screw is controlled by solenoids 34, 35 acting on cores 36 linked to a pivoted lever 37 embracing and engaging a collar secured in ball bearings to the splined sleeve. A spring contact 64, Fig. 9, on the head 26 is arranged to slide against plates 61, 62 separated by an inclined insulating-rib 63, the contact with the plate 61 exciting the solenoid 34 so that its core is drawn down and the disk 29 lowered into contact with the disk 31. The screw 27 is rotated to depress the head 26 and guide 19 until the contactspring 64 springs across below the rib 63 into contact with the plate 62, when the solenoid 35 is excited and raises the disk 30 against the disk 31 so that the screw 27 is rotated in the opposite direction until the contact-spring escapes past the upper end of the rib 63 to the plate 61 again. The guide 19 works very close to the spool, and is moved outwards as the building proceeds by an electro - magnetic clutch, Fig. 7, comprising a screwed shaft 54 carrying a fixed disk 57<1> and a loose disk 53 provided with electro-magnets 52 and having an arm engaged by the core of a solenoid 51, Fig. 9. The screwed shaft works in a fixed nut and engages a rod 48, Fig. 5, fixed to an arm 49 formed with the arm 44 which is pivoted on the head 26 and bears on a spring support 47 having a tail end 45 embracing and sliding on the machine frame. When the electro magnets and solenoid are excited, the magnets on the disk 53 move up to the disk 57<1> and the core is drawn into the solenoid 51, thus rotating the disk 53 and thereby the disk 57<1> so as to set back the guide 19. The traverse is increased to produce taper-ended spools by making the insulating-rib 63, Fig. 9, in two parts, each of which engages a separate screwed shaft 69, Fig. 2, and each shaft receives a partial rotation at each complete reciprocation of the guide by means of electro-magnetic clutches, such as shown in Fig. 7, and solenoids. These clutches and solenoids are excited by a finger 86, Fig. 9, on the traversing head 26 engaging a flexible contact 87 so as first to complete the circuit through the three electro-magnetic clutches 53, 67, 68 arranged in parallel, and afterwards, by the deflexion of the contact 87 against other contacts 88, 89, through the corresponding solenoids 51, 71 or 51, 74 according as the head 26 is ascending or descending. The movement of the solenoid cores can be regulated to control the automatic adjustment of the rib and guide, and springs 69', Fig. 7, are provided to press back the magnetic clutches and return them to their original position when the circuit is broken.