Overhead material handling system

Claim 1

IN AN OVERHEAD MATERIAL HANDLING SYSTEM INCLUDING AN ELECTRIFIED OVERHEAD MONORAIL TRACK AND A PLURALITY OF CARRIERS MOVABLE ABOUT SAID TRACK BY ELECTRIC MOTORS MOUNTED ON THE RESPECTIVE CARRIERS, AN APPARATUS FOR CUSHIONING THE IMPACT BETWEEN AND DISCONNECTING THE POWER TO THE DRIVING MOTOR OF A TRAILING CARRIER IN THE EVENT IT OVERTAKES A LEADING CARRIER COMPRISING FRAME MEANS ADAPTED TO BE SUPPORTED ON SAID TRACK IN ADAVNCE OF A CARRIER, RESILIENT MEANS HAVING ONE END OPERATIVELY CONNECTED TO SAID FRAME MEANS AND ITS OTHER END ADAPTED TO BE OPERATIVELY CONNECTED TO THE FRONT END OF SAID CARRIER, SWITCH MEANS CARRIED BY SAID FRAME MEANS AND ADPATED TO BE CONNECTED IN TKHE CONTROL CIRCUIT OF THE DRIVING MOTOR OF SAID CARRIER OF DISCONTINUING THE DRIVE FOR SAID CARRIER UPON ACTUATION OF SAID SWITCH MEANS, AN ABUTMENT MEMBER MOVABLY CONNECTED TO SAID FRAME MEANS AND POSITIONED TO ENGAGE AND BE MOVED IN ONE DIRECTION RELATIVE TO SAID FRAME MEANS BY A LEADING CRRIER UPON A CARRIE TO WHICH IT IS CONNECTED OVERTAKING ANOTHER CARRIER, MEANS ON SAID FRAME MEANS LIMITING MOVEMENT OF SAID ABOUTMENT MEMBBER IN SAID ONE DIRECTION, AND MEANS FOR ACTUATING SAID SWITCH MEANS UPON MOVEMENT OF SAID ABUTMENT MEMBER IN SAID ONE DIRECTIONS.