Apparatus for installing lines in multiple conduit

Details Apparatus for installing lines in multiple conduit Apparatus for installing lines in multiple conduit

B - Operations, Transporting

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B65H 59/00 (2006.01) B66F 19/00 (2006.01) G02B 6/44 (2006.01) H02G 1/08 (2006.01)

Patent

CA 1056362

APPARATUS AND METHOD FOR PNEUMATICALLY RODDING MULTI-PASSAGE CABLE HOUSING CONDUITS Abstract of the Disclosure: Cable pull lines are pneumatically rodded through underground cable housing conduit comprising joined multi- passage sections by attaching the free end of the pull lines to individual foam carriers inserted into each passage at one end of the conduit and forcing air through a manifold into said passages behind the foam carriers to simultaneously drive the carriers to the open exit end of the conduit. The pull lines have been previously uniformly wound on a reel and a brake is used to tension the reel as the pull lines unwind therefrom to keep the foam carriers in phase as they advance through the conduit and thereby to prevent air bypassing the leading foam carriers through gaps at the conduit section joints with resultant loss of driving pressure.

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