Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Patent
1992-06-12
1994-08-23
Stodola, Daniel P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
242583, 2426131, B65H 7518
Patent
active
053400518
ABSTRACT:
A wound spool (10) of film strip (24) of the type having a full width portion (26.sub.b), a reduced width lead end (26) and a transition portion (26.sub.a) extending between the full width and reduced width portions, the spool including a core (12,14) to which the lead end is attached, a pair of radially extended end flanges (18) at respective opposite ends of the core and a pair of circumferentially and axially extended shoulders (16) between the end flanges and the core for supporting the longitudinally extending edges of the full width portion. Each of the shoulders has an axially extended, essentially cylindrical portion (16.sub.b) adjacent a respective one of the end flanges for supporting one of the edges of the full width portion; an axially extended frusto-conical portion (16.sub.a) extended from the cylindrical portion toward the core for supporting the edges of the transition portion; the length (l.sub.2) of the core between the frusto-conical portions and the diameter (d.sub.1) of the core being sufficient for winding the lead end about the core between the shoulders; and the axial length (l.sub.3) and cone angle (.phi.) of the frusto-conical portions being sufficient for winding the transition portion about the frusto-conical portions and for radially spacing the full width portion from contact with the lead end and with a strip of tape (22) attaching the lead end to the core.
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Dunn Eileen A.
Eastman Kodak Company
Snee, III Charles E.
Stodola Daniel P.
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