Abstract: A no-back arrangement is disclosed for use in applying a braking load to a rotary actuator member, the no-back arrangement comprising a no-back device operable to apply a braking load to the rotary actuator member when the rotary actuator member is subject to a tensile loading, and limit means operable to limit the magnitude of the applied braking load.

Abstract: A torque limiter device comprises a rotatable input 10 having an input flange 20 associated therewith, a rotatable output 12 having an output flange 22 associated therewith, the input flange 20 and the output flange 22 having opposing transmission pockets 26a, 26b formed therein, a torque transmission element 28 locatable within the opposing transmission pockets 26a, 26b of the input and output flanges 20, 22 to transmit torque therebetween, at least one disengagement pocket 32 arranged to receive the torque transmission element 28 when the torque transmission element 28 is in a disengaged position in which torque is not transmitted between the input flange 20 and the output flange 22, and resilient biasing means 34 biasing the torque transmission element 28 towards a transmission position in which it is located within the opposing transmission pockets 26a, 26b.

Abstract: A torque limiter device comprises a rotatable input 10 having an input flange 20 associated therewith, a rotatable output 12 having an output flange 22 associated therewith, the input flange 20 and the output flange 22 having opposing transmission pockets 26a, 26b formed therein, a torque transmission element 28 locatable within the opposing transmission pockets 26a, 26b of the input and output flanges 20, 22 to transmit torque therebetween, at least one disengagement pocket 32 arranged to receive the torque transmission element 28 when the torque transmission element 28 is in a disengaged position in which torque is not transmitted between the input flange 20 and the output flange 22, and resilient biasing means 34 biasing the torque transmission element 28 towards a transmission position in which it is located within the opposing transmission pockets 26a, 26b.

Abstract: A clutch arrangement, especially adapted for use in an aircraft nose wheel landing gear steering arrangement, includes a rotatable drive input, a rotatable output, and an epicyclic gear arrangement, and a carrier upon which the planet gears are mounted, the drive input being connected to the ring gear of the gear arrangement or the carrier, the output being connected to the other of the ring gear or the carrier, and a clutch operable to control relative rotation between the ring gear and the sun gear and to direct the major portion of the torque being transmitted therethrough the first of two transmission paths.

Abstract: An actuator is described which comprises a rotatable actuator member (14, 114) and a lock arrangement (28, 128) operable to lock the actuator member (14, 144) against rotation, the lock arrangement (28, 128) comprising an axially movable lock member (30, 130, 230a, 230b), the lock member being movable between a locked position in which it co-operates with a stop (34, 136) to resist rotation of the actuator member, and a released position, and an actuation device (62, 162) operable to move the lock member towards its released position.

Abstract: A no-back arrangement is disclosed for use in applying a braking load to a rotary actuator member, the no-back arrangement comprising a no-back device operable to apply a braking load to the rotary actuator member when the rotary actuator member is subject to a tensile loading, and limit means operable to limit the magnitude of the applied braking load.

Abstract: An actuator is described which comprises a rotatable actuator member (14, 114) and a lock arrangement (28, 128) operable to lock the actuator member (14, 144) against rotation, the lock arrangement (28, 128) comprising an axially movable lock member (30, 130, 230a, 230b), the lock member being movable between a locked position in which it co-operates with a stop (34, 136) to resist rotation of the actuator member, and a released position, and an actuation device (62, 162) operable to move the lock member towards its released position.

Abstract: A clutch arrangement comprises a rotatable drive input, a rotatable output, and an epicyclic gear arrangement comprising a ring gear, a series of planet gears meshing with the ring gear, a sun gear meshing with the planet gears, and a carrier upon which the planet gears are mounted, the drive input being connected to one of the ring gear and the carrier, the output being connected to the other of the ring gear and the carrier, and a clutch device operable to control relative rotation between the ring gear and the sun gear. The invention also relates to a nosewheel landing gear steering arrangement including such a clutch arrangement.