Servo-motor

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Servo-motor \Ser`vo-mo"tor\ (s[~e]r`v[-o]*m[=o]"t[~e]r), n.
     [Sometimes erroneously spelt serro-motor.] [F. servo-moteur.
     See {Serf}; {Motor}.]
     1. (Mach.) A relay apparatus; specif.:
        (a) An auxiliary motor, regulated by a hand lever, for
            quickly and easily moving the reversing gear of a


            large marine engine into any desired position
            indicated by that of the hand lever, which controls
            the valve of the motor.
        (b) In a Whitehead torpedo, a compressed-air motor, for
            moving the rudders so as to correct deviations from
            the course.
            [Webster 1913 Suppl.]
  
     2. a motor which forms part of a {servomechanism}.
        [PJC]