Model: T13 Compound Rack and Pinion Parallel Guide of Redtenbacher
A circular ring near the base of Model T-13 is constrained to vertical motion by four sliding constraints at the base. The ring is made to move vertically or parallel to itself by four ganged rack and pinion pairs that are actuated by a single crank at the top of the model. Model T-13 is part of a set of three similar mechanisms including T-11 and T-12. Reuleaux’ use of the German term Schutzenzug in the Voigt Catalog does not translate clearly in 20th Century German-English dictionaries. Ferdinand Redtenbacher was an important German professor of mechanical engineering at the University of Karlsruhe. He was also the professor of Reuleaux as well as Karl Benz of automotive fame. (See a biographical sketch in KMODDL)

Francis Moon 2004-07-00

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