Riser-tensioner
Riveted structure for a pulley seat
Roller assembly for a lifting device for a...
Rope grip apparatus
Rope guiding device with pivotal guide roller for rope winches
Rope pulley construction
Rope-guiding device
Rotatable hitch for securing a lift sheave to a frame element
Rubber-lagged sheave
Safety device
Safety device for lowering persons and loads
Safety enhancement device for well-logging cable sheave wheels
Safety system for hoist apparatus
Scooter jack
Self-aligning cable guide assembly
Self-camming pulley
Self-elevating offshore drilling unit legs
Self-propelled airplane dolly
Self-straining bolts
Sheave and sheave system