Workpiece carrier means for surface grinding machine

Claim 1

A workpiece carrier for a surface grinding machine having spaced, opposed grinding wheels, comprising a revolving workpiece holder revolvably installed adjacent a tip end of a carrier arm for rotation on said carrier arm around the axis of said workpiece holder; a plurality of workpiece pockets passing through said workpiece holder, said pockets being equally spaced from the axis of rotation of said workpiece holder on said carrier arm and equally spaced from each other around said axis of rotation; said carrier arm being movable in a rockable manner within a range from a grinding position between said grinding wheels to a setting position spaced from said grinding wheels; an automatic limited revolution mechanism for stopping the revolution of said workpiece holder at a specified angular spot in said setting position of said carrier arm; a rockable loading arm and a rockable unloading arm each having plural workpiece holding members in an arrangement corresponding to a workpiece pocket arrangement at said specified angular spot; and plural workpieces simultaneously loaded on and unloaded from said workpiece holder in said setting position by means of said loading arm and said unloading arm, respectively.