(under subclass 5) Gyroscopes combined with mechanism to hold the rotor axis fixed, when the rotor is not spinning, or if spinning, when it is desired to take the gyroscope out of useful operation.
(1) Note. The rotor axis may be positively held with respect to the gyroscope support, or it may be heavily weighed to hold the rotor axis fixed with respect to the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.44, where the force of gravitation, acting upon a weight, and reacting against the rotor axis erects an operative gyroscope.
