.~ For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.) {2}
275
.~.~ For locking platen in fore-and-aft position (e.g., by overcenter spring, etc.)
DEFINITION
Classification: 400/275
For locking platen in fore-and-aft position (e.g., by overcenter spring, etc.):
(under subclass 274) Subject matter wherein the platen* of the typewriter during case-shift* is in a direction that extends between the front and rear of the typewriter and substantially parallel to the bottom of the typewriter, and said two locations are the extreme front and rear of the extent of movement of the plate, and wherein significance is attributed to means for maintaining the platen in its extreme front or rear location until another location is desired by the typist.
