Method and means for the identification of a roll

Details Method and means for the identification of a roll Method and means for the identification of a roll

1982-06-10

1984-07-31

Pellinen, A. D.

Registers

Coded record sensors

Particular sensor structure

235161, 235154, 235167, 235385, G06K 714

Patent

active

044632517

ABSTRACT:
A method for the identification of rolls, in particular big paper rolls, by means of a code attached to or marked on the end surface of the roll. The code comprises several characters located side by side and is read by a combined signal optical beam transmitter-receiver, preferably a laser device, scanning a restricted angle in a plane (8). The scanning is adjusted to extend slightly over the end limits of the code at its both ends and the scanning plane is turned until at least one scanning over the enire code (4) is obtained.

REFERENCES:
patent: 3600556 (1971-08-01), Acker
patent: 3643068 (1972-02-01), Monan et al.
patent: 3931524 (1976-01-01), Herrin
patent: 3978317 (1976-08-01), Yamaguchi et al.
patent: 3988573 (1976-10-01), Hayosh
patent: 4057784 (1977-11-01), Tafoya
patent: 4192452 (1980-03-01), Hashimoto et al.
patent: 4193540 (1980-03-01), Dougados et al.
patent: 4224509 (1980-09-01), Cheng
patent: 4250405 (1981-02-01), Ashcroft et al.
patent: 4333006 (1982-07-01), Gorin et al.

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