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A friction brake assembly for use with axially aligned rotor brake discs that are interleaved with stator brake discs. The rotor discs have a plurality of circumferentially spaced slots along their inner periphery. The slots opposite side walls are beveled and are complimentarily engaged by the beve

A friction brake assembly for use with axially aligned rotor brake discs that are interleaved with stator brake discs. The rotor discs have a plurality of circumferentially spaced slots along their inner periphery. The slots opposite side walls are beveled and are complimentarily engaged by the beveled legs of a U-shaped insert. The inserts transfer the load and stresses to the full beveled faces of the slots while held in place by overlying clips which are fastened to the discs.

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An annular brake disc made from a carbon composite material having a plurality of circumferentially spaced slots around one periphery thereof, each of said slots having a bottom surface and two side walls, an insert located within each of said slots, a plurality of circumferentially spaced cap membe

An annular brake disc made from a carbon composite material having a plurality of circumferentially spaced slots around one periphery thereof, each of said slots having a bottom surface and two side walls, an insert located within each of said slots, a plurality of circumferentially spaced cap members mounted around said one periphery of said discs adjacent to said slots, each of said cap members overlying a portion of said slot to thereby confine said inserts in said slots, each of said side walls of said slots contains a pair of faces that taper towards the opposite side wall presenting a wedge shaped abutment, and the outer walls of said inserts are grooved to complimentarily engage said wedge shaped abutment.