Tape spool

Details Tape spool Tape spool

1974-04-18

1976-11-23

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 5519A, B65H 1748, B65H 7518

Patent

active

039932621

ABSTRACT:
A tape spool for supporting an endless magnetic tape in a magnetic tape cartridge is cold formed from a single piece of flat plastic stock with upstruck hub segments of a predetermined configuration. The spool also is formed with a central bent configuration including a cylindrical portion for journaling the spool for rotation on a spindle in the cartridge. The preferred hub segments are upstruck from an annular platform which supports a coil of magnetic tape and leave openings in the platform. Each of the hub segments is bent to have an arcuate curvature and collectively define a cylindrical guiding surface for the tape having an upper diameter larger than a collective diameter defined by the lower portions of the hub segments joined to the platform at bent hinge areas.

REFERENCES:
patent: 2089787 (1937-08-01), Goldberg
patent: 3617010 (1971-11-01), Coy
patent: 3718297 (1973-02-01), Eagle
patent: 3753533 (1973-08-01), Lyman
patent: 3796387 (1974-03-01), Zielke

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