US PATENT SUBCLASS 400 / 61
INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED CONTROL-SYSTEM (E.G., INPUT TYPEWRITER)

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

61INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED CONTROL-SYSTEM (E.G., INPUT TYPEWRITER) {7}
62  DF  .~> Including means for responding to input program or incoming signals and providing output program or signals representing typing operations (e.g., output typewriter)
63  DF  .~> Including editing or revision system
64  DF  .~> Including right-hand margin control system
65  DF  .~> Including typing of graphical representations
66  DF  .~> Including baseplate attachment with electromagnets for input or output operations
67  DF  .~> Separate interrelated programs {1}
69  DF  .~> Type-face selection via magnetic program tape

DEFINITION

Classification: 400/61

INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED-CONTROL-SYSTEM (E.G., INPUT TYPEWRITER):

(under the class definition) Subject matter wherein a programmed-control-system* governs the operation of a typewriter so as to control the format of the text to be imprinted on a record-medium* and so as to impress selected or chosen type-face* elements against the record-medium.

(1) Note. The term "format" refers to physical appearance. As used in the typewriter art the term refers to the appearance of a page* of text of typewritten character* symbols. Control of format involves (a) movement of the record-medium in the line-space* direction (i.e., the "Y" direction of a graph) to locate the record-medium at a desired print-line* location and (b) movement of the carriage* (e.g., a platen* carriage or a type-head* carriage) in a character-space* direction (i.e., the "X" direction of a graph) to locate the first-imprinted-character symbol of the

print-line along that print-line. Format control also governs such function* operations as carriage return (Found, per se, in subclass 313), tabulation (found, per se, in subclass 284), subsequent line-spacing* (found, per se, in subclass 545), or record-medium feeding (found, per se, in subclasses 578), (these functions being only exemplary) so that the entire format of the printed text on the record-medium is controlled. In some typewriters having format control the typewriter or the program is capable of being modified to change the format as desired. For example, a paragraph of text comprising six print-lines, each print-line having approximately 70 characters thereon, may be changed to a paragraph comprising 12 print-lines, each print-line having approximately 35 characters thereon; or the distance between successive print-lines may be varied as desired to compress or expand the typed text to fit a page.

(2) Note. In the typewriter of this and indented subclasses, the programmed-control-system also governs the operation to select or choose the type-face elements that are to be used to imprint the characters in sequence. The difference between "select" and "choose" as to type-face, is discussed in the glossary under definitions such as case-shift*, type-face-carrier*, type-head, and type-head-carrier*. Briefly, a particular type-face is selected from among the many available from a type-set-assemblage, whereas an upper-case* form of letter (As distinguished from a lower-case* form of the same letter) is chosen from the forms available on one key* element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, for selection of type-face by a programmed-control-system.

76, for control of format by a programmed-control-system.