Tray dumping mechanism

Claim 1

APPARATUS FOR EMPTYING A TRAY OR THE LIKE COMPRISING A PAIR OF PIVOTED SPACED MEMBES INCORPORATING MEANS TO GRASP THE OPPOSITE SIDE EDGES OF SAID TRAY, MOTION RESISTING MEANS TO POSITION AND RETAIN SAID MEMBERS IN A STARTING POSITION AND COORDINATED THEREWITH A CYCLE SWITCH WHICH FUNCTIONS TO MAINTAIN MOTIVE POWER THROUGH A CYCLE OF MOVEMENTS OF SAID ARMS SO LONG AS SAID MOTION RESISTING MEANS IS OVERCOME, MEANS OPERATED IN RESPONSE TO MOTION OF SAID SPACED MEMBERS TO ACTUATE SAID CYCLE SWITCH, SAID MOTION RESISTING MEANS NORMALLY POSITIONING SAID MEMBERS IN A STRAIGHT POSITION TO RECEIVE SAID TRAY IN AN UPRIGHT POSITION, DRIVE MEANS TO MOVE SAID MEMBERS THROUGH A CYCLE INCLUDING MOVEMENT FROM SAID STARTING POSITION THROUGH A PATH FIRST TO OVERTURN SAID TRAY AT A SECOND POSITION, THEN TO SWING BACK A THIRD POSITION WHEREIN SAID TRAY FALLS FROM SAID GRASPING MEANS AND THEN TO RETURN TO SAID STARTING POSITION, AND MEANS OPERABLE TO MOMENTRALIY OVERCOME SAID MOTION RESISTING MEANS AND THEREBY ACTIVATE SAID CYCLE SWITCH.