Sheet material coil counter

Details Sheet material coil counter Sheet material coil counter

1994-05-17

1995-06-27

Voeltz, Emanuel T.

Boots, shoes, and leggings

364563, 377 8, 377 28, G06M 710

Patent

active

054285577

ABSTRACT:
A method apparatus for determining the length of a roll of sheet material, including a side surface at which the edge of each of the plurality of layers of sheet material is exposed wherein the side surface of the roll of sheet material is exposed to a source of radiation and the radiation reflected from the edges of the roll is scanned in a radial direction to establish a first signal indicative of the reflected radiation and the number of edges of layers of sheet material. The length of the roll of sheet material is calculated using the sensed number of layers of sheet material in the roll. The method and apparatus are similarly adapted to determine the number of layers of sheet material in a stack of sheet material.

REFERENCES:
patent: 3835306 (1974-09-01), Bills et al.
patent: 4232218 (1980-11-01), Kenton et al.
patent: 4323768 (1982-04-01), Uchida
patent: 4475163 (1984-10-01), Chandler et al.
patent: 5005192 (1991-04-01), Duss

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