Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Patent
1990-08-06
1994-07-26
Stodola, Daniel P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
G11B 2302
Patent
active
053321723
ABSTRACT:
A reel spring for use in a magnetic tape reel cassette, having a longer longitudinal axis and a shorter transverse axis is disclosed. The reel spring includes two arms joined at the central transverse axis which has the smallest transverse width of the reel spring. The arms extend longitudinally from the central transverse axis to respective ends, and increase uniformly in transverse width toward the ends to form a bow-tie shape. The reel spring also includes transverse crimps which define a central base portion and two end portions extending at an angle from the central base portion to provide a biasing force. Two openings are formed in the central base portion to mount the reel spring in the cassette. The openings are spaced from the transverse axis on opposite sides of the longitudinal axis.
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Article from Mechanical Springs, by A. M. Wahl, Chapter XVI, "Flat and Leaf Springs" (pp. 286-288), 1949.
Griswold Gary L.
Kirn Walter N.
Levine Charles D.
Minnesota Mining and Manufacturing Company
Nguyen John Q.
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