US PATENT SUBCLASS 400 / 303
.~ For varying carriage feed

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
303.~ For varying carriage feed {3}
304  DF  .~.~> For kerning or overlap imprinting
305  DF  .~.~> By force-feed or screw-feed mechanism
306  DF  .~.~> Proportional to variable widths of imprinted characters {4}

DEFINITION

Classification: 400/303

For varying carriage feed:

(under subclass 283) Subject matter wherein the carriage* is caused to be moved in a direction that enables the character* symbols to be imprinted in succession (i.e., the character-space* direction), and wherein the movement in said direction is regulated to occur in irregular or unequal increments of movement, the increments corresponding to variable character-space distances or variable word-space* distances.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10, for a variable carriage-feed mechanism used in a "justification" typewriter.