Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-03-27
1976-07-06
Smith, Robert I.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 76, G11B 2304
Patent
active
039677885
ABSTRACT:
Improved endless loop film cassettes which allow film to be unwound and rewound about a common reel by removal of the innermost convolution of film from the center of the film pack without scrubbing and returning the same to the outermost convolution of the film pack. Two embodiments are disclosed, both capable of operation at any angle between horizontal and vertical.
REFERENCES:
patent: 3088687 (1963-05-01), Martin
patent: 3227508 (1966-01-01), Bavaro
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