Counter balanced sheave assembly with multiple pulleys
Counter-balanced sheave
Crane assembly
Crane hook block
Crane motion compensator
Crown block dead line anchor
Deflectable trunnion assembly
Device adapted to facilitate the simultaneous transportation of
Device and process for spreading optical fibers emerging from a
Device for changing the rigging of the pulley blocks of a crane
Device for guiding at least a flexible elongated element...
Device for keeping constant the tensile stress in a cable
Device for raising and lowering loads
Directional tree falling aid and method of applying same
Drive sheave of elevator
Dual purpose crane block
Dump block for dragline bucket
Electric wire changing device for wire replacing works on...
Electric wire removing roller for LP insulator and power...
Elevator sheave for use with flat ropes