(19)
(11) EP 0 340 830 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.10.1990 Bulletin 1990/44

(43) Date of publication A2:
08.11.1989 Bulletin 1989/45

(21) Application number: 89200999.4

(22) Date of filing: 19.04.1989
(51) International Patent Classification (IPC)4: B65H 23/02
(84) Designated Contracting States:
CH DE ES FR GB LI

(30) Priority: 06.05.1988 IT 6741288

(71) Applicant: Bianco, Mario
I-12051 Alba (CN) (IT)

(72) Inventor:
  • Bianco, Mario
    I-12051 Alba (CN) (IT)

(74) Representative: Lotti, Giorgio 
c/o Ing. Barzanò & Zanardo Milano S.p.A. Corso Vittorio Emanuele II, 61
10128 Torino
10128 Torino (IT)


(56) References cited: : 
   
       


    (54) Equipment for the detection and correction of the sideways movement of a belt advancing along a processing line


    (57) An equipment for the detection and correction of the sideways movement of a belt (10) advancing along a processing line comprises a light source (13) and a receiver oriented toward said source and between them the advancing belt is interposed; the receiver is equipped with sensors (16) which generate signals in accordance with the quantity of light picked by said receiver and control the devices which restore the sideways movement of the belt; the receiver consists of at least one optical fiber (15) or similar device able to transmit the light towards the ends, extending substantially for the entire length of the light source and the sensors are located exclusively at the ends of said optical fiber.







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