A two axes manipulating device is provided for the movement of work pieces between two arbitrary desired points in a plane. The device comprises a carriage with guide tracks for two axes disposed at a 90 degree angle relative to each other. The drive is provided under computer control via gear rack and...http://www.google.com/patents/US4600358?utm_source=gb-gplus-sharePatent US4600358 - Manipulating device operating in two directions
