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CPC Subgroup
G01C 19/46

Erection devices for restoring rotor axis to a desired position

Full Title

Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects > Rotary gyroscopes > for indicating the vertical > Erection devices for restoring rotor axis to a desired position

4 direct subcodes

Child Classifications

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  • G01C 19/48 operating by electrical means (G01C19/54 takes precedence)
  • G01C 19/50 operating by mechanical means (G01C19/54 takes precedence)
  • G01C 19/52 operating by fluid means (G01C19/54 takes precedence)
  • G01C 19/54 with correction for acceleration forces due to movement of instrument