dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature

Advancing or retarding electric ignition spark; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions > using mechanical means > dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature

Advancing or retarding ignition; Control therefor > automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions (dependent on position of personal controls of engine F02P5/02) > using mechanical means > dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature