US PATENT SUBCLASS 400 / 323.1
.~.~.~ In selected direction (e.g., for Semitic language, etc.)

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
319  DF  .~ Carriage-feed mechanism (e.g., escapement, etc.) {14}
323  DF  .~.~ Carriage-feed in two directions (e.g., continuous typing in both directions) {1}
323.1.~.~.~ In selected direction (e.g., for Semitic language, etc.)

DEFINITION

Classification: 400/323.1

In selected direction (e.g., for semitic language, etc.):

(under subclass 323) Subject matter wherein one of said first or second directions is chosen for the primary or significant direction of carriage* movement.

(1) Note. The purpose of this mode of operation is to imprint successive character* symbols in a character-space* direction that is opposite to that which is used in the usual typewriter. In most typewriters, characters are imprinted from left to right to conform to most European languages, therefore a platen carriage that moves the record-medium* effects movement of the platen carriage from right to left whereas a type-head carriage that moves a type-head-carrier effects movement of the type-head carriage from left to right. Certain Semitic languages, e.g., Arabic and Hebrew, are written from right to left, therefore in the typewriter of this subclass, the carriage movement feed direction is selectively changed to be reversed from the directions referred to above.