Inertia trailer brake actuator

Claim 1

AN AUTOMATIC DEVICE FOR APPLYING THE BRAKES OF A TRAILER EQUIPPED WITH A BRAKING SYSTEM AND WITH MEANS FOR CONTROLLING SAID BRAKING SYSTEM AND COUPLED TO A TRACTOR VEHICLE, SAID DEVICE COMPRISING A CYLINDRICAL CASE SECURED ON THE FRONT END OF THE TRAILER, A SLEEVE MEMBER SECURED ON THE FRONT END OF SAID CYLINDRICAL CASE TO CONSTITUTE A CYLINDRICAL INLET DIRECTED INWARDS OF SAID CYLINDRICAL CASE, A RING SECURED IN SAID CYLINDRICAL CASE AND CONSTITUING A CYLINDRICAL PASSAGE THEREIN, A COUPLING MEMBER COMPRISING A FRONT PORTION ATTACHED TO SAID TRACTOR AND A TUBULAR REAR PORTION EXTENDING COAXIALLY IN SAID CASE SO AS TO SLIDE IN SAID SLEEVE MEMBER AND IN THE RING SECURED ON SAID CASE, A COLLAR SECURED ON SAID COUPLING MEMBER AND HOUSED WITH CLEARANCE IN SAID CYLINDRICAL CASE, A DRIVING RING OF RESILIENT MATERIAL SLIDABLY ENGAGING THE OUTER SURFACE OF SAID COUPLING MEMBER AND ENCLOSED IN SAID CYLINDRICAL CASE BETWEEN SAID SLEEVE MEMBER SECURED THERETO AND SAID COLLAR SOLID WITH SAID COUPLING MEMBER, A BUMPER SOCKET OF RESILIENT MATERIAL SLIDABLY ENGAGING THE OUTER SURFACE OF SAID COUPLING MEMBER AND ENCLOSED IN SAID CYLINDRICAL CASE BETWEEN SAID COLLAR SOLID WITH THE COUPLING MEMBER AND THE RING SECURED IN SAID CYLINDRICAL CASE, A MODERATOR SPRING HOUSED WITH RADIAL PLAY IN THE REAR TUBULAR PORTION OF SAID COUPLING MEMBER, SAID SPRING HAVING A FRONT END BEARING AGAINST THE FRONT PORTION OF SAID COUPLING MEMBER AND AN OPERATIVE REAR END, A BRAKE ACTUATING MEMBER HAVING A TUBULAR FRONT PORTION SLIDABLY ENGAGING SAID TUBULAR REAR PORTION OF SAID COUPLING MEMBER AND SURROUNDING THE FRONT END OF SAID MODERATOR SPRING, AND A REAR PORTION, A HYDRAULIC SHOCK-ABSORBER SECURED IN SAID CYLINDRICAL CASE BEHIND SAID BRAKE ACTUATING MEMBER AND CONNECTED TO THE REAR PORTION OF SAID BRAKE ACTUATING MEMBER, A PAIR OF TRUNNIONS EXTENDING LATERALLY FROM THE REAR PORTION OF SAID BRAKE ACTUATING MEMBER, A PAIR OF INERTIA CONTROL LEVERS PIVOTALLY MOUNTED ON A TRANSVERSE PIN CARRIED EXTERNALLY BY SAID CYLINDRICAL CASE, SAID LEVERS HAVING DRIVEN ENDS AND DRIVING ENDS, THE DRIVEN ENDS ENGAGING SAID CASING THROUGH AN APERTURE FORMED THEREIN AND HAVING THE SHAPE OF FORKS ENGAGING THE TRUNNIONS OF SAID REAR PORTION BRAKE ACTUATING MEMBER, SAID DRIVING ENDS BEING DISPOSED EXTERNALLY OF SAID CASING, A BRACING MEMBER RIGIDLY INTERCONNECTING SAID DRIVING ENDS, A TWO-ARMED LOOP ENGAGING SAID BRACING MEMBER AND A YOKE CONNECTING THE ARMS OF SAID LOOP FOR POSITIVELY OPERATING SAID CONTROL MEANS FOR ACTUATING THE WHEEL BRAKES OF THE TRAILER BRAKING SYSTEM.