US PATENT SUBCLASS 400 / 547.6
.~.~.~.~.~.~ Including relatively adjustable coaxial gear segments

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


400 /   HD   TYPEWRITING MACHINES

545  DF  FOR LINE-SPACING BY INCREMENTAL ROTATION OF PLATEN {15}
546  DF  .~ To facilitate condensed billing (i.e., by determining a desired limit or amount of retrograde or advance platen movement) {2}
547  DF  .~.~ Including stop structure (e.g, traveling stop, etc.) {1}
547.1  DF  .~.~.~ For arresting platen at limit of both retrograde and advance movement {2}
547.3  DF  .~.~.~.~ By lever or push-rod drive for platen {2}
547.4  DF  .~.~.~.~.~ Via gear drive {2}
547.6.~.~.~.~.~.~ Including relatively adjustable coaxial gear segments

DEFINITION

Classification: 400/547.6

Including relatively adjustable coaxial gear segments:

(under subclass 547.4) Subject matter wherein the connection of the movable arm to the platen* includes a rotatable toothed wheel coacting with an assemblage of toothed members, which assemblage comprises a plurality of toothed elements, each element being an arcuate portion of a toothed wheel, the elements being disposed side by side to rotate about a common axis and being repositionable one with respect to the other(s) about the common axis so as to vary the peripheral extent of the teeth of the assemblage that coacts with the rotatable toothed wheel, whereby the number of teeth of the assemblage that is in mesh with the toothed wheel may be varied to vary the platen rotation.