Apparatus for extending and retracting telescoping booms and...

Details Apparatus for extending and retracting telescoping booms and... Apparatus for extending and retracting telescoping booms and...

B - Operations, Transporting

67

D

214/20, 212/28,

B67D 7/40 (2010.01) E21B 43/26 (2006.01) F16L 3/01 (2006.01) F16L 27/12 (2006.01)

Patent

CA 1191836

Abstract of the Disclosure A telescoping boom assembly having novel and inexpensive apparatus for extending and retracting the boom assembly and for extending and retracting an articu- lated pipeline mounted on the boom assembly. A total of three winches can be used to move a multiple section boom assembly between a retracted position and an extended position regardless of the number of movable boom sec- tions, and the same three winches can independently move the articulated pipeline between a folded and an extended position.

432034

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