Remote control installations for a plurality of gate-valves with common source of operating fluid

Claim 1

A REMOTE CONTROL INSTALLATION FOR AT LEAST TWO GATEVALVES WHICH COMPRISES, IN COMBINATION, A COMMON SOURCE OF LIQUID UNDER PRESSURE, A DOUBLE-ACTING JACK LOCATED IN THE VICINITY OF EVERY GATE-VALVE AND OPERATIVELY CONNECTED THEREWITH TO ACTUATE IT, RESPECTIVELY, EACH OF SAID JACKS COMPRISING TWO CHAMBERS, THE FILLING OF EACH OF SAID CHAMBERS WITH LIQUID UNDER PRESSURE OPERATING SAID JACK IN ONE DIRECTION, A DISTRIBUTOR ASSOCIATED WITH EACH OF SAID JACKS RESPECTIVELY FOR OPERATING IT, SAID DISTRUBUTORS BEING GROUPED TOGETHER, EACH OF SAID DISTRIBUTORS COMPRISING A FIRST INLET AND A FIRST OUTLET ADAPTED TO BE PLACED IN COMMUNICATION WITH EACH OTHER FOR ONE POSITION OF SAID DISTRIBUTOR, SAID FIRST OUTLET BEING IN COMMUNICATION WITH ONE OF THE CHAMBERS OF THE CORRESPONDING JACK AND A SECOND INLET AND A SECOND OUTLET, TO BE PLACED IN COMMUNICATION WITH EACH OTHER FOR ANOTHER POSITION OF SAID DISTRIBUTOR, SAID SECOND OUTLET BEING IN COMMUNICATION WITH THE OTHER OF THE CHAMBERS OF SAID LAST MENTIONED JACK, INTRODUCTION OF FLUID INTO SAID OTHER OF THE SAID CHAMBERS PRODUCING CLOSING OF THE VALVE, PIPE MEANS ARRANGED TO CONNECT SAID COMMON SOURCE OF LIQUID UNDER PRESSURE WITH THE FIRST MENTIONED INLET OF EACH OF SAID DISTRIBUTORS, A PRESSURE REDUCING DEVICE HAVING AN INLET AND AN OUTLET, PIPE MEANS FOR PLACING SAID LAST MENTIONED INLET IN COMMUNICATION WITH SAID SOURCE OF LIQUID UNDER PRESSURE, AND PIPE MEANS FOR PLACING SAID LAST MENTIONED OUTLET IN COMMUNICATION WITH THE SECOND MENTIONED INLET OF SUCH OF SAID DISTRIBUTORS.