US PATENT SUBCLASS 400 / 342
.~ Margin-regulator (e.g., adjustable margin-stop) mechanism

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
342.~ Margin-regulator (e.g., adjustable margin-stop) mechanism {7}
343  DF  .~.~> With intermediate margin-stop
344  DF  .~.~> With other typewriter function controlled by margin-stop (e.g., signal, line-space) {2}
347  DF  .~.~> With multiple-pitch selector
348  DF  .~.~> With release of margin-stop
349  DF  .~.~> Conjointly set or centrally spring biased
350  DF  .~.~> On record-medium table or paper-finger
351  DF  .~.~> Margin-stop structure, per se

DEFINITION

Classification: 400/342

Margin-regulator (e.g., adjustable margin-stop) mechanism:

(under subclass 283) Subject matter wherein the carriage* is caused or enabled to be moved in either a character-space* direction or an opposite direction, and wherein significance is attributed to a margin-stop* for controlling the movement of the carriage in either of said directions by stopping the carriage at a preset point, which point is adjustable relative to the typewriter, and which point corresponds to either the left margin* or the right margin of the record-medium* that is being typed on.

(1) Note. In most typewriters the right-hand margin regulator (i.e., of a typewriter that imprints successive character* symbols from left to right) is usually combined with a mechanism to prevent further typing on the print-line*, although the preventing mechanism may be disengaged at the will of the typist to enable imprinting of several additional characters on the same print-line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

671+, for a lock responsive to the end of a type print-line.