US PATENT SUBCLASS 400 / 438
.~.~ With adjustment means (e.g., for "touch" control, ect.)

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

383  DF  TYPE-BAR-ACTION MECHANISM OR TYPE-FACE ON TYPE-BAR OR TYPE-FACE INKER {19}
436  DF  .~ Type-bar return spring connected to type-bar-action linkage {4}
438.~.~ With adjustment means (e.g., for "touch" control, ect.) {1}
438.1  DF  .~.~.~> Including an indicator

DEFINITION

Classification: 400/438

With adjustment means (e.g., for "touch" control, etc.):

(under subclass 436) Subject matter wherein a type-bar* member is moved from its rest position to its print-point* position, the movement being caused by the pressing of a key* element on a key-board* by a typist exerting force on the key, and wherein significance is attributed to changing the amount of force exerted by the typist for pressing the key element.

(1) Note. The "touch" control of this subclass is intended to modify the typewriter to the needs of various typists who might use the same typewriter. Some typists use a light or lesser touch, striking the keys with little force. The same typewriter, if subsequently used by a typist with a heavy touch who strikes the keys with great force, might have its platen* damaged. The touch control tends to prevent this.