GB272934A - Improvements in and relating to basing machines for electric incandescent lamps and similar articles - Google Patents

Abstract

272,934. British Thomson-Houston Co., Ltd., (Assignees of Fagan, J. T., and Malloy, J. J.). June 16, 1926, [Convention date]. Caps.-In machines for connecting caps to bulbs and having an indicating device to facilitate accurate adjustment of the bulb in relation to the filament, e.g. as described in Specification 266,380, the bulb-holders are adjustably mounted and images of the filament taken from different angles are projected upon a screen to facilitate this adjustment. The caps 12 are located in each head by their pins engaging shoulders 33, 34, Fig. 5, and the bulbs are supported by cups 17 carried by rods 19 pressed upwards by springs. To allow lateral sliding movement of the cups 17 in all directions, they are secured by a nut 21 engaging a flange 22 to provide a frictional grip thereon. Jaws 35, 36 hold the caps 12 and are operated to release them at the loading and unloading positions by levers 39, Fig. 1, provided with rollers adapted to ride on a fixed cam 37. At the adjusting position B the filament is lighted by the leading- in wires 15, 16, Fig. 10, being seized by grippers 47, 48 connected to the electric supply. The two pairs of jaws are pivoted on a slide, 50 which is rionnally raised out of the path of the bulb. As the slide is lowered by a lever 84, toggles 77, 78 cause the grippers to closed on to the wires. Two systems of lenses and reflectors 66 - - 69 and 72 - - 75, Fig. 1, throw images of the filament from different angles upon a screen 62, as shown at 65, 71, Fig. 9, and the bulb cup 17 is moved by the operator until both images coincide with ruled lines. The remainder of the machine may be constructed as described in Specification 247,923. Specification 268,361 also is referred to.