Web roll amount detecting apparatus

Details Web roll amount detecting apparatus Web roll amount detecting apparatus

1982-01-15

1984-01-24

Myracle, Jerry W.

Measuring and testing

Sheet, woven fabric or fiber

33142, G01B 704

Patent

active

044268831

ABSTRACT:
An apparatus for detecting the length of web wound on a bobbin. The apparatus detects the amount of rotation of the bobbin and the amount of feed of the web and detects the amount of roll by an operation on the basis of the detected amounts. The amount of rotation of the bobbin is detected by the pulses generated in response to the rotation of the bobbin and counted by a first counter. The amount of feed of the web is detected by the pulses generated in response to the feeding of the web and counted by a second counter. The amount of roll is calculated by an operation device on the basis of the count values of the first and second counters.

REFERENCES:
patent: 4052599 (1977-10-01), Whiteley et al.
patent: 4151403 (1979-04-01), Woolston
patent: 4159572 (1979-07-01), Nunes

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