Bi-directional tape transport apparatus

Winding – tensioning – or guiding – Strand tensioning device – Tortuous course

Patent

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Details

242210, B65H 7534, G03B 104, G11B 1560

Patent

active

039484645

ABSTRACT:
A simplified tape transport apparatus employs a pair of capstans each associated with one of the two rolls of tape in the transport. Means are provided for driving the two capstans to rotate their respective rolls to feed tape from the supply roll to the take-up roll. The driving means includes individual belts coupling a drive spindle with capstan support spindles so as to introduce a twist in the belts whereby their ends will naturally shift from one position to another axially of their respective supporting spindles in response to reversing the rotation of the drive spindle. In the foregoing manner, the ends of the belt associated with the capstan driving the take-up roll will normally be disposed about spindle portions which cause the take-up roll capstan to drive the take-up roll at a greater rate than the supply roll capstan drives the supply roll, thereby introducing tension into the tape. Upon reversing the drive spindle, however, the ends of the two belts shift axially on their supporting spindles so as to relocate the ends of the belts for operation by other spindle portions which serve to drive the newly designated take-up capstan at a rate greater than the newly designated supply capstan so as to tension the tape during reverse feeding of the tape. The foregoing action occurs as the natural result of the manner in which the belt is arranged.

REFERENCES:
patent: 3802644 (1974-04-01), Maiershofer

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