G - Physics – 02 – B
Patent
G - Physics
02
B
118/2
G02B 6/44 (2006.01)
Patent
CA 1293166
ABSTRACT Disclosed is an apparatus for manufacturing cables comprising optical fibers and of the type comprising a core pro- vided on its outer surface with at least one groove in the form of an open helix which receives at least one optical fiber. The apparatus comprises a plurality of bobbins carrying the optical fibers and which rotate about their own axes and which are mounted on a fixed frame. A head to insert the optical fibers in the grooves of the core is provided with a through cavity for the passage of the core and with a plurality of extensions to be inserted in the core grooves and extending from the wall of the through cavity, the extensions each having a through hole for the passage of the optical fibers. A rigid tubular body inter- posed between the coil-holding frame and the head permits the passage of the cable core and supports the optical fibers on its outer surface. A mechanism is provided for the rectilinear advancement of the core and causing alternative rotational move- ment of the head. The apparatus has a first and a second optical system for each optical fiber. The optical systems each comprise at least one photoelectric cell system arranged transversely to the direction of advancement of the optical fiber. The first system provides signals determining an increase in the speed of the mechanism paying off the optical fiber and the second optical system provides signals determining a decrease in the speed of the mechanism paying off the optical fiber. An axial plane con- taining the catenary configuration of the optical fiber inter- sects the light received by the photoelectric cells.
560197
Lucchini Luigi
Seveso Cesare
Smart & Biggar
Societa Cavi Pirelli S.p.a.
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