US PATENT SUBCLASS 400 / 649
.~ For movement of platen other than for line-spacing

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

648  DF  PLATEN OR PLATEN-MOVING MECHANISM {5}
649.~ For movement of platen other than for line-spacing {4}
650  DF  .~.~> Cylindrical platen adjustable to facilitate compactness
651  DF  .~.~> Cylindrical platen axially adjustable
652  DF  .~.~> Platen movment conjointly with type-face movement
653  DF  .~.~> By eccentric mounting for platen

DEFINITION

Classification: 400/649

For movement of platen other than for line-spacing:

(under subclass 648) Subject matter wherein a platen* is moved for a purpose other than to effect a line-space* distance.

(1) Note. The movement of the platen is the typewriter of this subclass is often to enable an extra-thick "manifold set" to be inserted between the platen and the apron* associated therewith, or to move the platen so that typing on the record-medium* may be more readily seen by the typist, or to enable adjustments to be made to the record-medium relative to the platen, etc.