US PATENT SUBCLASS 74 / 366
.~.~.~.~.~ Single key


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
325  DF  .~ Interchangeably locked {11}
*  DD  .~.~ Slidable keys or clutches {3}
*  DD  .~.~.~ Single clutch shaft {3}
*  DD  .~.~.~.~ Progressive {2}
366.~.~.~.~.~ Single key {2}
368  DF  .~.~.~.~.~.~> Clutch and ratchet
369  DF  .~.~.~.~.~.~> Spur gears {3}


DEFINITION

Classification: 74/366

(under subclass 325) Transmissions wherein there are constant mesh gears, some of which are rotatably mounted on a shaft and adapted to be clutched to the shaft by a single clutch or key which is manually shifted to provide progressive changes in gear ratio.

SEE OR SEARCH THIS CLASS, SUBCLASS:

337.5, for cam operated controls for interchangeably locked gears.