Roll depletion monitoring device for use in particular with wrap

Details Roll depletion monitoring device for use in particular with wrap Roll depletion monitoring device for use in particular with wrap

1995-11-27

1997-03-04

Jillions, John M.

Winding, tensioning, or guiding

Unwinding

With detector, indicator, or control

25055924, 356384, B64H 2608

Patent

active

056071213

ABSTRACT:
The depletion of a roll strip material onto a relative core and rotatable about its own axis, typically as in wrapping machines, is monitored by a device comprising light-sensitive optoelectronic transducers associated directly with the roll, mounted pivotably in such a way as to advance gradually closer to the core in a substantially radial direction as the strip decoils; the transducers respond to the color presented by a given area of the roll, and will generate a signal on sensing a hue or shade that matches a previously selectable reference value.

REFERENCES:
patent: 4239404 (1980-12-01), DeFilipps et al.
patent: 4913366 (1990-04-01), Andou
patent: 5212389 (1993-05-01), Wirtz

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