G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
G05G1/085—Crank handles
G—PHYSICS
G05—CONTROLLING; REGULATING
G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
G05G1/082—Controlling members for hand actuation by rotary movement, e.g. hand wheels having safety devices, e.g. means for disengaging the control member from the actuated member