US Patent No. 3,516,601 for a high-speed punching apparatus, granted June 23, 1970 to Herbert Behrens, assignor to Olympia Werke AG. A reciprocating drive is coupled to selected punches by turnable coupling members with non-circular cross sections, which electromagnetic selectors rotate during the return stroke. The document has three drawing sheets (Figs. 1-6), the specification with background, summary and embodiments, and 23 claims. It is about punched record-carrier equipment and has no weaving content.