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Priority to NL51030ApriorityCriticalpatent/NL26094C/xx
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Publication of NL26094CpublicationCriticalpatent/NL26094C/xx
B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
B—PERFORMING OPERATIONS; TRANSPORTING
B61—RAILWAYS
B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
B61K5/00—Apparatus for placing vehicles on the track; Derailers; Lifting or lowering rail vehicle axles or wheels