Device for double encasing a strand of material containing one or more waveguides
AssigneeSiemens Aktiengesellschaft
InventorsGuenter Einsle, Ernst Mayr, Gernot Schoeber, Wolfgang Schrey
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Abstract
A device for encasing a rope-like strand containing one or more light waveguides, which device includes two extruders situated one after the other characterized by a fluid cooling device positioned between the two extruders for applying a cooling fluid to the external surface of a first layer applied by the first extruder to cool it prior to extruding a second layer thereon. The cooling device enables increasing the rate of travel of the rope-like strand during the extruding operation.
Claims13
In a device for double encasing a rope-like strand containing one or more light waveguides, said device utilizing first and second extruders situated one after the other to apply successive first and second layers of sheath material onto the strand, the improvements comprising cooling means being positioned between the first and second extruders to externally apply a cooling liquid on the outer surface of the first layer to cool the first layer and extraction means being positioned betweeen the cooling means and second extruder to remove residue of the cooling liquid from the first layer before the second layer is applied.
Dependencies are inferred from the claim text.