Coiling machine for incandescent lamp filament - has equal moment of inertia masses coupled by planetary gears and rotatably mounted on sleeve around winding spindle

摘要

The coiling machine for the filament of incandescent lamps maintains a constant tension on the filament even if the spooling speeds of the winding appts. changes. A sleeve (3) is mounted on the spindle. A wire deflecting roller (11) is mounted on a support (14) rotatably mounted on the sleeve. Mount and sleeve form a mass (A) with a moment of inertia equal to that of a second mass (B) also rotatably mounted on the spindle. The two masses are coupled by a planetary drive. The mounting shafts (16) for the planetary gears (15) are fixed to the inner surface of a housing fixed to the sleeve.