Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1981-05-15
1983-07-26
Griffin, Donald A.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 711, G03B 1726, G03B 104
Patent
active
043951074
ABSTRACT:
A film cassette for multi-exposure film strips has a body part with an inner compartment for a film strip and at least one opening for passage of the film strip therethrough between an initial position before exposure and a final position after exposure, and elements for preventing unintentional withdrawal of the film strip from the body part in at least one of these positions, the preventing elements arranged between the body part and the film strip. The preventing elements can be arranged so that they prevent unintentional withdrawal of the film strip in both positions. The preventing elements include a recess provided in one of the film strip and the body part, and a projection provided in the other of the film strip and the body part and engageable in the recess.
REFERENCES:
patent: 2176507 (1939-10-01), Nagel
patent: 2521956 (1950-09-01), Wallace et al.
patent: 2662696 (1953-12-01), Nerwin
patent: 2894141 (1959-07-01), Kollock
patent: 3690582 (1972-09-01), Duvall
patent: 3722387 (1973-03-01), Walther
patent: 4176938 (1979-12-01), Weiss et al.
Engelsmann Dieter
Hackenberg Hubert
Hoffacker Franz
Kovacic Guido
Luhrig Hermann
Agfa-Gevaert AG
Griffin Donald A.
Striker Michael J.
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