Traversing hoists – Overhead – Cable
Patent
1975-12-05
1977-09-27
Werner, Frank E.
Traversing hoists
Overhead
Cable
212 14, B65G 700
Patent
active
040505898
ABSTRACT:
A pipe laying machine for laying large diameter pipes such as gas and oil pipelines, comprising a pair of self-propelled trucks carrying frames supporting a bridge which is adjustable in span and inclination and which carries a lifting device drivable across the bridge.
REFERENCES:
patent: 732908 (1903-07-01), Thomson
patent: 1975840 (1934-10-01), Geiger
patent: 3090494 (1963-05-01), Thiele
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