US PATENT SUBCLASS 400 / 261
.~ Multiple-shift mechanism (i.e., for type-bar having three or more type faces thereon)

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

251  DF  CASE-SHIFT MECHANISM {14}
261.~ Multiple-shift mechanism (i.e., for type-bar having three or more type faces thereon) {2}
262  DF  .~.~> For shifting type-bar-segment
263  DF  .~.~> For shifting type-bar or type-face on type-bar {2}

DEFINITION

Classification: 400/261

Multiple-shift mechanism (i.e., for type-bar having three or more type-faces thereon):

(under subclass 251) Subject matter wherein the typewriter is provided with a plurality of type-bar* members, each type-bar having at least three type-face* elements thereon, only one of which type-face is to be impacted to form only one character* on record-medium* for each pressing of a character key* element, and wherein the case-shift* mechanism is arranged to cause relative movement between a record-medium and the selected type-bar that is at a print-point* into one of at least three positions, whereby a chosen one of the type-face* with respect to the type-bar* that carries the type-face, the movement being a turning motion.

(1) Note. This subclass provides for a typewriter wherein a platen* is shifted vertically, or horizontally, as in a bottom-strike or top-strike typewriter.