Turbine propulsion installations for controllable pitch propellers
US2987123A
Arrangement in propellers with variable pitch blades
US2870848A
Pitch adjusting gear for controllable pitch propellers
ES215436A3
A provision of maneuvers for propellers of boats, pumps or turbines with servomotor for the modification of the position of adjustable pads (Machine-translation by Google Translate, not legally binding)
ES215437A3
Improvements in the construction of cubes for boat propellers or turbines with rotating spheres (Machine-translation by Google Translate, not legally binding)
ES215438A3
A maneuvering device for propellers of boats, pumps or turbines with variable pads and with a servomotor for the variation of the same (Machine-translation by Google Translate, not legally binding)
