Tilted spindle grinder

Claim 1

A GRINDING MACHINE HAVING A ROTATABLE GRINDER SPINDLE ADAPTED TO BE INCLINED SLIGHTLY FROM VERTICAL IN THE DIRECTION OF GRIND COMPRISING A TILTABLE SUPPORT HEAD PIVOTALLY MOUNTED ON AN AXIS A TILTABLE SUPPORT HEAD PIVOTALLY MOUNTED ON AN AXIS TRANSVERSE TO THE DIRECTION OF GRIND, A GRINDER SUPPORT HEAD MOUNTED FOR RECIPROCATORY MOVEMENT ON SAID TILTABLE SUPPORT HEAD PARALLEL TO THE GRINDER SPINDLE AXIS, YIELDABLE MOUNTING MEANS PERMITTING LIMITED AXIAL MOVEMENT OF SAID GRINDER SPINDLE RELATIVE TO THE GRINDER SUPPORT HEAD, AND TILTABLE SUPPORT HEAD ARE TELESCOPICALLY MOVABLE RELATIVE TO EACH OTHER ALONG THE GRINDER SPINDLE AXIS, AND SERVO-CONTROL MEANS FOR MOVING SAID GRINDER SUPPORT HEAD AXIALLY RELATIVE TO SAID TILTABLE SUPPORT HEAD AND GRINDER SPINDLE SO AS TO VARY THE DEFLECTION OF SAID YIELDABLE MOUNTING MEANS IN ACCORDANCE WITH EXTERNAL CONDITIONS FOR MAINTAINING A PREDETERMINED GRINDING PRESSURE.