Web unwinder with core diameter measuring device

Details Web unwinder with core diameter measuring device Web unwinder with core diameter measuring device

1988-11-02

1990-04-03

Levy, Stuart S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

250561, 250571, B41J 2948, B65H 2608

Patent

active

049133667

ABSTRACT:
A web unwinder is provided with an arm movable in a direction parallel to the axis of a web roll according to the width of the web. Two position detectors are mounted on the arm; one is for detecting a position of one of the ends of the web roll, and the other is for measuring a diameter of a core of the web roll.

REFERENCES:
patent: 3971956 (1976-07-01), Jakeman et al.
patent: 4276910 (1981-07-01), Eichenberger
patent: 4657198 (1987-04-01), Shimizu et al.

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