B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 43/08 (2006.01) B41J 29/393 (2006.01) B41J 29/48 (2006.01) B65H 26/00 (2006.01) B65H 26/02 (2006.01)
Patent
CA 2212056
A control device (3) for monitoring the travel of two superimposed paper webs (1, 2) in a paper processing machine has a thin stationary plate (4) arranged at the edge of the paper webs (1, 2) that extends between both paper webs in the direction of travel of the paper. Reflection-sensitive photoelectric sensors (5, 6) are arranged on opposite sides of the plate (4) so that the light rays (5a, 6a) from both sensors are projected from opposite directions upon the corresponding paper web (1, 2) and the plate (4) located behind the paper web.
Ce dispositif de contrôle (3) du déplacement de deux bandes de papier superposées (1, 2) dans une machine de traitement du papier comprend une mince plaque stationnaire (4) située au bord des bandes de papier (1, 2) qui s'introduit entre les deux bandes de papier et qui s'étend dans la direction de déplacement du papier. Des capteurs photoélectriques (5, 6) sensibles aux reflets sont montés sur des côtés opposés de la plaque (4) de sorte que les rayons de lumière (5a, 6a) émis par les deux capteurs soient projetés en sens opposés sur la bande correspondante de papier (1, 2) et sur la plaque (4) située derrière la bande de papier.
Bowe Systec Ag
Marks & Clerk
LandOfFree
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