Le moteur centripète
A French-language technical pamphlet on a proposed centripetal motor, written by Eraste d'Odet d'Orsonnens and printed in Ottawa in 1899 for engineers and patent readers. The plates are line-engraved mechanical diagrams: flywheels, spoked gear wheels, chain drives and weighted levers, each part tagged with italic letters and set inside a ruled frame, useful as sources of clean wheel and chain geometry, hub detail and technical lettering.
