US PATENT SUBCLASS 400 / 274
.~ For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.)

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

251  DF  CASE-SHIFT MECHANISM {14}
274.~ For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.) {2}
275  DF  .~.~> For locking platen in fore-and-aft position (e.g., by overcenter spring, etc.)
276  DF  .~.~> For locking shift-key lever in depressed position {2}

DEFINITION

Classification: 400/274

For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.):

(under subclass 251) Subject matter wherein said relative movement effects a rearrangement of parts on the typewriter

to at least two locations relative to the typewriter frame, and wherein significance is attributed to means for maintaining the particular arrangement of parts as desired by the typist until another location of said parts is desired.

(1) Note. In the typewriter of this subclass, the case-shift* mechanism is held by a cam, or is prevented from rebounding out of position into an undesired position. Also included herein is a typewriter wherein the platen* is locked in a raised position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

663, for other locking mechanism in a typewriter.