US PATENT SUBCLASS 400 / 270
.~.~ Mounted on type-bar support (e.g., guide pin, type-bar-segment, etc.)

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

251  DF  CASE-SHIFT MECHANISM {14}
268  DF  .~ For shifting type-face or type-bar {2}
270.~.~ Mounted on type-bar support (e.g., guide pin, type-bar-segment, etc.) {3}
270.1  DF  .~.~.~> Ring hanger support
270.2  DF  .~.~.~> Including ball-bearing support
270.3  DF  .~.~.~> Including pivoted-lever support (e.g., cantilever spring, etc.)

DEFINITION

Classification: 400/270

Mounted on type-bar support (e.g., guide pin, type-bar-segment, etc.):

(under subclass 268) Subject matter wherein the typewriter is provided with structure that sustains the type-bar* members in an operative relationship to enable the type-bars, and the type-face* elements carried by the type-bars, to move from rest position to print-point* position as each type-bar is selected to impact its type-face against the record-medium*, which structure also enables movement of the type-set-assemblage* that is sustained on the structure, the movement of the type-set-assemblage being for the purpose of effecting case-shift*.

(1) Note. In some of the typewriters of this subclass the type-bars are mounted on a type-bar-segment* which moves so that a chosen type-face of the selected type-bar will impact the record-medium.