US PATENT SUBCLASS 400 / 580
.~ Including forming indicia on record-medium during typing to find next line to be typed

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

578  DF  SHEET OR WEB (E.G., RECORD-MEDIUM FEEDING MECHANISM) {13}
580.~ Including forming indicia on record-medium during typing to find next line to be typed {1}
581  DF  .~.~> To find last-produced slit or hole or notch in sheet

DEFINITION

Classification: 400/580

Including forming indicia on record-medium during typing to find next line to be typed:

(under subclass 578) Subject matter wherein significance is attributed to (a) the imprinting or formation of a mark on the record-medium* while a print-line* is being typed thereon, and (b) the use of said mark during a subsequent reinsertion of the record-medium into the typewriter, the mark effecting the stopping of the feed of the reinserted record-medium in a position proper for the imprinting of a new print-line.

(1) Note. In the typewriter of this and indented subclasses, a typist will usually type one print-line of text, remove the record-medium from the typewriter, and then will reinsert the record-medium to continue the typing of one (or more) print-lines. Each occasion for removal and reinsertion of the record-medium will be reason to imprint or form a mark which will subsequently be used to stop the feed of the record-medium when the record-medium has been fed to the position where a new print-line is to be typed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

583.3, for a programmed-control-system* wherein indicia on the record-medium are part of the program to control the feeding of the record-medium.