Web transport device

Details Web transport device Web transport device

1983-10-27

1985-01-29

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

318 7, 318603, B65H 5938, G03B 102, G11B 1513

Patent

active

044961170

ABSTRACT:
A web transport device for transporting a web wound on a rotary member to another rotary member, provided with a first calculating unit for calculating the ratio of rotating speeds of the unwinding and winding rotary members at a regular interval, a second calculating unit for calculating the ratio of rotating speeds of the unwinding and winding rotary members at the end of web transport on the basis of the value calculated by the first calculating unit at the start of web transport, and a unit for controlling the rotation of the rotary members through the comparison of the values calculated by the first and second calculating units, respectively.

REFERENCES:
patent: 3564219 (1971-02-01), Mutziger
patent: 3834648 (1974-09-01), Rose et al.
patent: 4160195 (1979-07-01), Sakamoto
patent: 4172231 (1979-10-01), de Costemore d'Arc

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