POLENI'S MACHINE - Italy - 1709

"It ressembles a clock driven by a system of weights . This machine is the first multiplier which uses the principal of driver with a variable number of teeth. (Collection Museo Nazionale della Scienza e della Tecnica Milano) ."
Source: Guy Renard, @mis@ Association pour le musée international du calcul de l'informatique et de l'automatique de Valbonne Sophia Antipolis

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