In 1979, S.I. Fishgal made his transmission, fluid-driven and impact rock crusher inventions for Joy Manufacturing Co. The crushers were Double-Acting, Eccentric, Cam Cone and Jaw, Coil Cone, Toothed Gyratory, Horizontally Fed Single and Dual Swing Jaw, Roll Jaw, Multi-Roll, Multi-Eccentric Jaw, Hydraulic Cone, Fluid-Actuated Gyratory and Jaw, Expansionary Actuators, Blasting Jaw, Combustion, Electric Steam, etc. The author's other engineering books are "Applied Mathematics in Inventions", "Applied Cavitation Inventions", "Applied Hydro-Impact Inventions", "Automotive Inventions", "Highways and Concrete Inventions", and "Military Cable Layers-Extractors Inventions." Fishgal's intriguing truthful historical novels are "Piddler on the Hoof", "Kosher Hooks", and "Mein Krampf". His horse sense, crisp and funny language, topsy-turvy idioms, and plays of words are striking. Hopefully, he is neither the worst novelist of inventors, nor the worst inventor of novelists.