Hydraulic feeder device for workpieces of machine tools

Claim 1

A HYDRAULIC FEEDER AND TAKE-OFF DEVICE FOR SETTING A WORKPIECE IN PLACE ON A MACHINE TOOL HAVING A ROTATING SPINDLE, SAID FEEDER DEVICE COMPRISING A FIXED FRAME INTEGRAL WITH SAID MACHINE TOOL, CHARGING MEANS AND DISCHARGING MEANS FOR SAID WORKPIECE DISPOSED ADJACENT SAID ROTATING SPINDLE, AN OSCILLATING MEMBER ANGULARLY DISPLACEABLE BETWEEN TWO EXTREME ANGULAR POSITIONS, A FIRST CATCHER MEMBER RIGIDLY MOUNTED ON SAID OSCILLATING MEMBER, A SECOND CATCHER MEMBER CARRIED BY SAID OSCILLATING MEMBER AND ANGULARLY SPACED APART FROM SAID FIRST CATCHER MEMBER AT AN ANGLE EQUAL TO THE ANGLE BETWEEN SAID TWO EXTREME ANGULAR POSITIONS, SAID SECOND CATCHER MEMBER BEING RADIALLY DISPLACEABLE WITH RESPECT TO SAID OSCILLATING MEMBER BETWEEN A RETRACTED POSITION AND A FORWARDED POSITION, SAID FIRST CATCHER MEMBER REGISTERING WITH SAID CHARGING MEANS AND SAID SECOND CATCHER MEMBER REGISTERING WITH THE AXIS OF SAID SPINDLE WHEN SAID OSCILLATING MEMBER IS IN ONE OF SAID TWO EXTREME ANGULAR POSITIONS, SAID FIRST CATCHER MEMBER REGISTERING WITH THE AXIS OF SAID SPINDLE AND SAID SECOND CATCHER MEMBER REGISTERING WITH SAID DISCHARGING MEANS WHEN SAID OSCILLATING MEMBER IS IN THE OTHER EXTREME ANGULAR POSITION, AND HYDRAULIC ACTUATING MEANS FOR CONTROLLING THE ANGULAR RECIPROCATING MOVEMENTS OF SAID OSCILLATING MEMBER BETWEEN SAID TWO EXTREME ANGULAR POSITIONS AND THE RECTILINEAR RECIPROCATING MOVEMENTS OF SAID SECOND CATCHER MEMBER BETWEEN SAID RETRACTED POSITION AND SAID FORWARDED POSITION.