(under the class definition) Subject matter wherein the means for transmitting power from the power source to the electrode moving mechanism includes a fluid transmission system and a motor actuated by the fluid.
SEE OR SEARCH CLASS
60, Power Plants,
325, for combined pump and motors, the pump supplying fluid pressure to the motor.
91, Motors: Expansible Chamber Type, for single motors of the expansible chamber type with the fluid control systems therefor.
251, Valves and Valve Actuation,
12, for fluid actuated valves. 303, Fluid-Pressure and Analogous Brake System,
6.01+, for plural motors with fluid control systems therefor.
415, Rotary Kinetic Fluid Motors or Pumps, appropriate subclasses for fluid actuated rotary motors, per se.
418, Rotary Expansible Chamber Devices, for rotary expansible chamber devices, per se.
