Patent GB-190508002-A (GB)
Title: Improved Construction of Apparatus for Winding Coils and Bobbins for Electrical and other purposes.
Inventor: BOURNE HARRY
Filed: 1905-04-14
Granted: 1906-03-08
Abstract: 8002. Bourne, H. April 14. Wire.-In apparatus for winding wire into coils or bobbins, means are provided for automatically disconnecting the driving- pulley after a predetermined number of layers, or length, or weight of material has been wound. The standard C, Fig. 1, holding the material to be wound, is secured in a groove B in the bed-plate A, and is provided with a special holding frame having slotted arms F carrying adjustable rods G which fit the inside of the coil of wire D. A pedestal H mounted in the groove B carries a guidepulley I and also bearings in which is arranged a swinging bracket J supporting a second guide-pulley K. The bobbin' or reel X, Fig. 5, is mounted on a spindle W fitting in brackets V and driven by toothed or friction gearing Z, T. A pressure roller N, Figs. 1 and 5, is supported in uprights L having a long base M which slides in the groove B and is controlled by a spring or weight P. An adjustable piece Q on one of the uprights L is provided with a projection U which rides along one arm of a bell-crank lever S, the driving-pulley T being pivoted in the other arm. As the coil on the bobbin or reel X increases in thickness, the pressure-roller N is moved further and further away, until the projection U leaves the lever S, thereby allowing the pulley T to drop out of gear with the member Z. The other upright L drives a scale-drum a, Fig. 3, by means of a rack R and pinion b. The drum a may be divided up into a number of small cylinders e, each representing a thickness or gauge of wire, which is indicated on a scale c. The gauge divisions are in turn provided with circumferential divisions which represent the numbers of layers wound upon the bobbin, and are read off by the aid of an indicator d. Alternatively, a series of disks for the different gauges may be placed side by side on the same shaft. In operation, the drum a is turned until the zero division in the particular gauge is opposite the indicator d, and the piece Q is adjusted so that the projection U will leave the lever S when the number of layers required appears opposite the indicator d. To ensure an equal wrapping of the wire at the ends of the bobbin, a post e carrying a forked arm f frictionally controlled by a spring g and nut h is secured to each upright L. One of the prongs i is adjustable to suit the thickness of the wire being wound. The wire passes between the two prongs, and carries the arm with it as it travels along the bobbin. In the modification shown in Fig. 5, the guide-pulley K is carried by a swinging arm q having a lug r maintained in contact with a cam u by means of a spring. The cam is rotated from the bobbin spindle W by means of a toothed disk v, worm m, and gear wheels n, p, the whole being supported on a bracket k formed on the uprights V. For different gauges of wire, the' cam and gear wheels are correspondingly altered. The wire passes directly from the standard C to a pulley w on the arm q, and thence by way of the pulley K to the bobbin.