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Publication of BE673632ApublicationCriticalpatent/BE673632A/xx
B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
B66B9/025—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by screw-nut drives
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16H—GEARING
F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
F16H25/20—Screw mechanisms
F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
