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AssigneeWestern Electric Company, Inc.
InventorsRobert Wayne Rake, Albert Sanford Tingley, Thomas Arthur Walter
Estimating the term…
A cable core, the interstitial spaces within which are being filled with waterproofing compound in a semi-fluid state as it passes through a compound-applying or filling chamber into which the compound is introduced under pressure, is advanced through a wiping die in a constricted passageway and into another chamber into which similar compound is pumped. The compound in the second chamber is at a substantially lower temperature than the compound in the filling chamber and exerts pressure radially on the cable core being filled to form a sheath or coating of the lower temperature compound around the filled core to seal the first compound in the core. The core is thereafter passed through a sizing die into a cooling chamber which solidifies the compound in and around the core. The cable core is thus conditioned for the subsequent application of sheathing materials thereto, for example, core wrapping and/or armor sheathing.
An apparatus for applying a waterproofing compound to a cable core consisting of a plurality of stranded conductors having interstics therebetween, which comprises:
The apparatus of claim wherein the waterproofing compound is a single component compound of petrolatum, and further including means for maintaining said compound in said first chamber in the temperature range of 170.degree. - 200.degree. F, and including further means for maintaining the temperature of said additional compound in said second chamber in the temperature range of 110.degree. - 140.degree. F.
Dependencies are inferred from the claim text.