Abstract:
A laminated tie bar or coupling particularly adapted to interconnect a helicopter rotor arm and rotor blade is provided with a pair of spaced-apart end bushings interconnected by an endless belt. A pair of annular clips encircle the belt adjacent the bushings to draw opposite sides of the belt into parallel alignment. Each clip abuts an associated transverse bar or pin extending between the belt sides and attached to an adjacent end bushing by a layer of flexible strands or wires wound around the end bushing and bar or pin. The bars or pins hold the clips apart and permit twisting of the coupling about an axis extending through the end bushings.
Abstract:
A brake adjuster and reset device particularly adapted for multiple disc aircraft disc brakes and provided with telescoping first and second cylinder portions containing concentric first and second crushable tubular portions, respectively, the first of which crushable tubular portions is compressed axially by a piston actuated brake applying pressure plate to provide a first range of adjusted brake positions thereof and the second of which crushable tubular portions is compressed axially by the first cylinder telescoping relative to the second cylinder to provide a second range of adjusted portions of the pressure plate. A first stop member is engaged by the second cylinder portion in a brake applying direction and a spring bearing against second cylinder portion urges the same off the first stop member into engagement with a second fixed stop member spaced apart from the first fixed stop member when the brake is released to establish a predetermined brake reset or running clearance.
Abstract:
A laminated tie bar or coupling particularly adapted to interconnect a helicopter rotor arm and rotor blade is provided with a pair of spaced apart end bushings interconnected by an endless belt. A pliable material interposed between the belt and each end bushing provides a bearing surface therebetween which deforms under unequal pressure or load distribution as a result of angular movement of an end bushing causing a bending moment on the belt which deformation redistributes and equalizes the pressure or load imposed on the belt.