(under subclass 325) Transmissions either (1) wherein the drive from the prime mover to the transmission is through a manually selected one of a plurality of concentric drive shafts, each of which has a clutch for engagement with the engine clutch; or (2) wherein the drive from the transmission to the propeller shaft is by means of a manually selected one of a plurality of concentric driven shafts each of which has a clutch for engagement with a clutch on the propeller shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
336+, for automatic speed responsive interchangeably locked gearing.
363+, for spur gear type, progressive multiple key, single clutch shaft interchangeably locked gearing.
SEE OR SEARCH CLASS
192, Clutches and Power-Stop Control,
48.1+, for plural clutch-assemblages, 52.1+ for a progressive engagement clutch, and 103+ for a speed-responsive clutch.
