Tool storage magazine devices

A tool storage magazine device comprising concentric inner and outer annular magazins, each provided with a plurality of tool pots and a blind pot which are arranged on a circle, magazine driving means for independently rotating said inner and outer annular magazines to bring a tool pot containing a designated tool or said blind pot to predetermined tool pot indexing positions, a tool holding pot disposed on the outside of said outer annular magazine for temporarily holding a tool, said tool holding pot having a center on a line interconnecting the center of said inner and outer annular magazines and the tool pot indexing positions thereof, a saddle located near said center and supported to be movable in a direction perpendicular to the axis of said magazines, a tool transfer arm supported by said saddle to be movable along said line interconnecting said tool pot indexing positions, said tool transfer arm including a gripper for gripping a tool, and means for selectively positioning said gripper to a retracted position inside of said inner magazine, the tool indexing positions of said inner and outer annular magazines and to the position of said tool holding pot.