FAIL SAFE REDUNDANT DRIVE SHAFT APPARATUS INCLUDING ELECTRICALLY OPERATIVE FAILURE DETECTION

摘要

Disclosure 351-790060FAIL SAFE REDUNDANT DRIVE SHAFT APPARATUSINCLUDING ELECTRICALLY OPERATIVE FALILUREDETECTION MEANSABSTRACT OF THE DISCLOSUREDrive shaft apparatus includes driving (4C) anddriven members (8A) and primary torque transmittingmeans (2) coupling the members. Redundant torquetransmitting means (3) is rendered operative forcoupling said members in the event of a failure ofthe primary coupling means (2) and a failure detectorincluding electrical circuitry (18) arranged withthe redundant coupling means (3) detects the opera-tion thereof and provides a corresponding indication.