Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1984-04-20
1985-05-21
Christian, Leonard D.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
242 76, 226194, G03B 104, G11B 1532
Patent
active
045181349
ABSTRACT:
A Phillips-type magnetic tape cassette in which widthwise motion of the tape is restricted. The cassette has rotary guide rollers arranged at both ends of the front part of the cassette for guiding the running of the magnetic tape. A shaft supporting each rotary guide roller is cylindrical and has a slit extending in the axial direction and a circumferential annular groove formed in the outer wall in a middle region. Each rotary guide roller has circumferential engaging protrusions extending from the inner wall thereof, which are inserted into the annular groove so that the rotary guide roller is pivotally mounted on the supporting shaft.
REFERENCES:
patent: 2930080 (1960-03-01), Haw
patent: 3829040 (1974-08-01), Nelson
patent: 3848265 (1974-11-01), Biery et al.
patent: 4403720 (1983-09-01), Grant
Oishi Kengo
Suzuki Osamu
Christian Leonard D.
Fuji Photo Film Co. , Ltd.
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