US PATENT SUBCLASS 400 / 323
.~.~ Carriage-feed in two directions (e.g., continuous typing in both directions)

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.~.~ Carriage-feed in two directions (e.g., continuous typing in both directions) {1}
323.1  DF  .~.~.~> In selected direction (e.g., for Semitic language, etc.)

DEFINITION

Classification: 400/323

Carriage-feed in two directions (e.g., continuous typing in both directions):

(under subclass 319) Subject matter wherein the carriage* is urged in a first direction and the movement in said first direction is regulated as defined in subclass 319, and wherein said carriage is alternately urged in a second direction that is opposite to said first direction and the movement in said second direction is also regulated as defined in subclass 319.

(1) Note. A "print-line*" is usually formed by imprinting successive characters* in the order in which they are read. However, some typewriters are capable of imprinting successive characters in reverse order, that is, the first character imprinted is the last character of the print-line, the second character imprinted is the next-to-last character of the print-line, etc. In the typewriter of this subclass the first print-line may be imprinted in regular order and the second print-line may be imprinted in reverse order, the text being imprinted alternately from left to right, and then from right to left in "continuous" typing action.