French Patent # 962,355 - Simplex

French Patent 962,355 - Simplex main image

Simplex started its life as a manufacturer of cheap, simple, racing, derailleurs. Cyclo was the doyen of the quality, touring, derailleur market. Simplex always had a slightly troubled relationship with the touring derailleur, and this patent is evidence for this. What in heavens name is going on in here? These designs look simply crazy.