(under subclass 76) Devices comprising a clamp for gripping the track which secure a hoisting carriage of a cable hoist in a fixed position during hoisting or lowering operation and thereafter release it for traveling movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78+, 83+, 87+, 94+, and 97+, for this type of carriage holder in combination with other elements.
SEE OR SEARCH CLASS
188, Brakes,
43, and 44 for track-clamping devices of general application.