US PATENT SUBCLASS 400 / 521
FOR TYPING ON CARD IN CARD HOLDER

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

521FOR TYPING ON CARD IN CARD HOLDER {11}
522  DF  .~> Flexible holder fed around platen with single card
523  DF  .~> On card pierced or indented to aid holding
524  DF  .~> Holder movable responsive to case-shift
525  DF  .~> Card holder carrier by platen {5}
531  DF  .~> Including line-spacing of holder or card {3}
535  DF  .~> Including support engaging bottom edge of card
536  DF  .~> Card holder mounted on typewriter frame {3}
541  DF  .~> Including a feed-roller
542  DF  .~> Card holder mounted on platen-carriage frame
543  DF  .~> Including gripper or means urging card against platen
544  DF  .~> Backing for stencil cutting (e.g, celluloid strip, etc.)

DEFINITION

Classification: 400/521

FOR TYPING ON CARD IN CARD HOLDER:

(under the class definition) Subject matter wherein significance is attributed to a typewriter provided with means for supporting or retaining a relatively stiff piece of record-medium* material while the typewriter is being used to imprint character* symbols on the record-medium.

(1) Note. Due to the stiffness of the record-medium (i.e., card) it does not readily conform to the periphery of the cylindrical platen* around which the card is partially wrapped during typing. This causes problems, especially during the typing of a print-line* near the top or bottom

edge of the card. Other problems in typing on a card are due to the size of the card, which is often smaller in length and width than a sheet. Disclosures in this and the indented subclasses are directed to means for over-coming the problems caused by typing on a card. This subclass provides for a retaining means that may be removed from and replaced on the typewriter easily.