Brake actuating mechanism

Claim 1

IN A BRAKE ACTUATING MECHANISM, A SPIDER RIGID WITH A VEHICLE AXLE AND PROVIDED WITH A HOLLOW BOSS THE AXIS OF WHICH IS GENERALLY PARALLEL TO THE AXIS OF THE AXLE, A TUBE ADAPTED FOR ENDWISE INSERTION INTO SAID BOSS, COOPERATING MEANS ON ONE END OF SAID TUBE AND SAID BOSS FOR NON-ROTATABLY HOLDING SAID TUBE AT ONE END ON THE SPIDER IN ANY OF A PLURALITY OF DIFFERENT ROTATIVE POSITIONS OF THE TUBE SO THAT THE TUBE PROJECTS RIGIDLY AWAY FROM SAID SPIDER, A CAMSHAFT EXTENDING THROUGH SAID TUBE WITH ONE END OF THE SHAFT PROJECTING FROM THE TUBE TO MOUNT A BRAKE ACTUATING CAM AT THE SIDE OF THE SPIDER OPPOSITE TO THAT FROM WHICH THE TUBE PROJECTS, A MOTOR MOUNTED ON AND NEAR THE OTHER END OF SAID TUBE, A LEVER RIGID WITH THE OTHER END OF SAID SHAFT WHICH PROJECTS THROUGH SAID TUBE, MOTION TRANSMITTING MEANS CONNECTED BETWEEN THE MOTOR AND LEVER SO THAT ENERGIZATION OF THE MOTOR ROCKS THE SHAFT, AND COAXIAL BEARINGS AXIALLY FIXED IN SAID TUBE ROTATABLY MOUNTING SAID CAMSHAFT, SAID BEARINGS BEING SLEEVES MOUNTED INTERNALLY OF SAID TUBE, ONE OF SAID SLEEVES BEING LOCATED WITHIN ONE END OF THE TUBE SO AS TO BE SURROUNDED BY SAID SPIDER BOSS AND THE OTHER SLEEVE BEING LOCATED WITHIN THE OTHER END OF THE TUBE ADJACENT THE MOUNTING FOR SAID MOTOR, AND SEALING MEANS BETWEEN THE AXIALLY OUTER END OF EACH SAID BEARING SLEEVE AND THE ADJACENT END OF SAID TUBE.