Safety control apparatus for coke oven batteries

Claim 1

INTERLOCKING CONTROL APPARATUS FOR A COKE OVEN BATTERY, COMPRISING: (A) A PUSHER CAR MOVABLE ALONG ONE SIDE OF THE BATTERY; (B) A PUSHER ON THE PUSHER CAR MOVABLE INTO AN OVEN TO EXPEL COKE THEREFROM ON THE OPPOSITE SIDE OF THE BATTERY FROM THE PUSHER CAR; (C) A COKE GUIDE CAR MOVABLE ALONG SAID OPPOSITE SIDE OF THE BATTERY; (D) A COKE GUIDE ON THE GUIDE CAR; (E) QUENCH CAR MEANS INCLUDING A QUENCH CAR ADAPTED TO RECEIVE HOT COKE AND MOVABLE ALONG A PATH ALONGSIDE THE PATH OF THE COKE GUIDE CAR AND ON THE OPPOSITE SIDE THEREOF FROM THE BATTERY; (F) A DISCHARGE DOOR ON SAID QUENCH CAR, SAID DOOR BEING OPENABLE TO DISCHARGE COKE THEREFROM; (G) INTERLOCKING MEANS RESPONSIVE TO THE DISCHARGE DOOR ONLY IN ITS CLOSET POSITION, AND TO ALIGNMENT OF THE PUSHER, THE COKE GUIDE AND THE QUENCH CAR WITH THE SAME OVEN, AND EFFECTIVE TO INHIBIT MOVMENT OF THE PUSHER INTO AN OVEN UNTIL: (1) THE PUSHER AND THE COKE GUIDE ARE ALIGNED WITH THAT OVEN; (2) THE QUENCH CAR IS ALIGNED WITH THE COKE GUIDE; AND (3) THE DISCHARGE DOOR ON THE QUENCH CAR IS CLOSED.