Rolling mill control system

Claim 1

IN A ROLLING MILL APPARATUS INCLUDING A FRAMEWORK AND A PAIR OF ROLLS ROTATABLY AND SLIDABLY MOUNTED WITHIN SAID FRAMEWORK; A MILL ROLL GAP CONTROL SYSTEM FOR SAID APPARATUS COMPRISED OF A ROLL PUSHUP MEANS INCLUDING A FIRST ACTUATOR OPERATIVELY CONNECTED TO SAID FRAME WORK AND ONE OF THE ROLLS FOR APPLYING SELECTED PUSHUP LOADS TO SAID ROLLS AND A FIRST FLUID CIRCUIT FOR SAID FIRST ACTUATOR; A ROLL BENDING MEANS INCLUDING A SECOND ACTUATOR OPERATIVELY CONNECTED TO A ROLL FOR APPLYING BENDING LOADS THERETO AND A SEONCD INDEPENDENT FLUID CIRCUIT FOR SAID SECOND ACTUATOR; A FIST CONTROL MEANS FOR CONTROLLING SAID FIRST FLUID CIRCUIT AND FOR OPERTING THE ACTUATOR OF SAID ROLL PUSHUP MEANS; A SECOND CONTROL MEANS FOR CONTROLLING SAID SECOND FLUID CIRCUIT AND FOR OPERATING THE ACUTATOR OF SAID ROLL BENDING MEANS; MEANS INCLUDING ELECTRO-LOAD SENSING MEANS INTERLOCKING SAID FIRST AND SECOND CONTROL MEANS, SAID FIRST AND SECOND FLUID CIRCUIT AND SAID FIRST AND SECOND ACTUATORS IN AN INTERDEPENDENT RELATIONSHIP WHEREBY A PREDETERMINED ACTUATION OF ONE OF SAID ACTUATORS CAN PRODUCE A PRESELECTED ACTUATION OF THE OTHER ACTUATOR IN ORDER TO REESTABLISH AND MAINTAIN AN ESTABLISHED ROLL GAP SETTING.