Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-10-01
1977-01-18
Christian, Leonard D.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 56R, 242 673R, 226 92, 226110, B65H 1908, B65H 1920, B65H 1742
Patent
active
040035271
ABSTRACT:
A control means is provided for use with a roll sheet feeder in which a web is fed to a work station from either one of a pair of web supply rolls for partially withdrawing from the work station the web not being fed thereto to avoid interference with the other web being worked upon at the work station. First and second selectively driven rotatable members are provided for feeding a web to the work station. The control means comprises a first and a second friction brake means mounted on and rotatable with the first and the second members respectively, and stop means for arresting rotation of the brake means. As the first member is rotated in a direction to feed the web to the work station, the brake means thereon co-acts with the brake means on the second member to thereby rotate the second brake means and the second member through a predetermined distance in the opposite or reverse direction until arrested by the stop means. This reverse rotation of the second member is effective to partially withdraw from the work station a lead end of the web associated with the second member.
REFERENCES:
patent: 3688961 (1972-09-01), Becker
patent: 3850356 (1974-11-01), Abe et al.
patent: 3880372 (1975-04-01), Witte
Addressograph Multigraph Corporation
Christian Leonard D.
Goldstein Sol L.
Kondzella Michael A.
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