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Publication of FR493670ApublicationCriticalpatent/FR493670A/en
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16H—GEARING
F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
F16H55/32—Friction members
F16H55/36—Pulleys
F16H55/44—Sheet-metal pulleys
FR493670D1918-12-071918-12-07
Improvements to metal pulleys
ExpiredFR493670A
(en)