System and apparatus for controlling the unwinding of coiled mat

Details System and apparatus for controlling the unwinding of coiled mat System and apparatus for controlling the unwinding of coiled mat

1982-06-23

1984-08-07

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

33132A, B65H 2500

Patent

active

044639139

ABSTRACT:
System and apparatus for controlling of coiled material in a rolling line or in a process line, in which an instruction signal is produced at a predetermined moment to decrease the unwinding speed when the coiled material is to be unwound, the system and apparatus of the invention directly measuring the remaining number of turns n of coil on the mandrel without relying upon a circumferential difference which usually assumes a small value whereby precision in timing for initiating the deceleration can be increased.

REFERENCES:
patent: 3161365 (1964-12-01), Johnson et al.
patent: 3421708 (1969-01-01), Nicholson et al.
patent: 3553992 (1971-01-01), Harbaugh
patent: 3663806 (1972-05-01), Drankhan et al.
patent: 4021002 (1977-05-01), Meihofer
patent: 4089482 (1978-05-01), Mooney et al.
patent: 4151403 (1979-04-01), Woolston
patent: 4337903 (1982-07-01), Kessler et al.

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