.~ Centrifugal mass type (exclusive of liquid) {5}
58
.~.~ With fluid servo-motor
DEFINITION
Classification: 137/58
(under subclass 53) Control systems wherein the speed responsive means transmits its regulating motion to the valve or valves by means of a fluid type servo-motor mechanism.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
366, and 458 for speed governor operated expansible chamber motors.
251, Valves and Valve Actuation,
25+, for fluid pressure actuated valves of the pilot or servo-motor type, and see the search notes to subclass 25. 418, Rotary Expansible Chamber Devices,
40+, for speed controlled rotary expansible chamber devices.
