US PATENT SUBCLASS 400 / 236.1
.~.~.~ By a pawl driving a ratchet on the spool or spindle

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

Internet Version by PATENTEC © 1999      Terms of Use


400 /   HD   TYPEWRITING MACHINES

191  DF  INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM {15}
223  DF  .~ Ribbon-feeding mechanism {13}
236  DF  .~.~ Drive applied directly to spool or spool spindle {2}
236.1.~.~.~ By a pawl driving a ratchet on the spool or spindle

DEFINITION

Classification: 400/236.1

By a pawl driving a ratchet on the spool or spindle:

(under subclass 236) Subject matter wherein the component secured to the cylindrical member is a ratchet*, and wherein

the motion-transmitting mechanism includes a pawl* for moving the ratchet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

220, for pawl-and-ratchet drive used with ribbon reversing.