Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1988-12-29
1990-05-08
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 55, 242105, B21C 4716, B65H 23185
Patent
active
049231383
ABSTRACT:
The flat undersurface of the turntable is supported on three idler casters. The disc is driven on the periphery by a gear motor which has a drive wheel attached. The direction of rotation of the turntable can be reversed by changing the direction of the motor electrically and by moving the position of the motor so that it tends to drive into the disc as it turns thereby increasing the wheel pressure and friction as the load increases. A spring biases the drive wheel towards this position so that when the power is turned off the motor and gear train acts as a brake. A pair of guide wheels act with the drive wheel to center the turntable. The motor speed is controlled by changing the resistance of a potentiometer on a variable speed motor controller. The potentiometer is converted from a circular motion to a linear motion by a capstan and cable arrangement. A slide moves, when pulled by the stock. The slide pulls a cable that is wrapped around a capstan which is attached to the speed control potentiometer. The cable is pinned to the capstan and is weighted at the other end to provide a constant tension but variable speed supply of stock.
REFERENCES:
patent: 4249705 (1981-02-01), Brooks et al.
patent: 4290561 (1981-09-01), Satzinger
patent: 4290563 (1981-09-01), Brooks et al.
patent: 4582271 (1986-04-01), Takahashi
patent: 4610408 (1986-09-01), Box et al.
patent: 4773610 (1988-09-01), Nordlof
Davis IV F. Eugene
duBois Steven M.
Levy Stuart S.
Norwalk Innovation Lab, Inc.
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