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Publication of BE702513ApublicationCriticalpatent/BE702513A/xx
B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
B66B13/22—Operation of door or gate contacts
B—PERFORMING OPERATIONS; TRANSPORTING
B66—HOISTING; LIFTING; HAULING
B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
B66B13/02—Door or gate operation
B66B13/14—Control systems or devices
B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors