US PATENT SUBCLASS 400 / 165.2
.~.~.~.~ Including type-head movable to print-point by actuator common to all type faces

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


400 /   HD   TYPEWRITING MACHINES

139  DF  INCLUDING TYPE-SET-ASSEMBLAGE MOUNTED ON CARRIER AND RELATIVELY MOVABLE FOR SELECTION AND FOR IMPACT OF TYPE-FACE {11}
160  DF  .~ Imprint by pivoting of type-head-carrier and type-head against record-medium {7}
162  DF  .~.~ Type-head movable for selection of type-face {14}
165.1  DF  .~.~.~ Via manually powered actuation other than by key-board (e.g, stylus selection) {1}
165.2.~.~.~.~ Including type-head movable to print-point by actuator common to all type faces {1}
165.3  DF  .~.~.~.~.~> Selection by rotatable dial

DEFINITION

Classification: 400/165.2

Including type-head movable to print-point by actuator common to all type-faces:

(under subclass 165.1) Subject matter wherein said mechanism includes a type-head* that is moved from a rest position to the print-point* position by a member that causes only such movement, and wherein selection or choice of the type-face* element that is to be impressed against the record-medium* is made by a hand of the typist.

(1) Note. In most typewriters that include a type-head having a type-set-assemblage* thereon, depression of a key* element causes at least two movements of the type-head. One such movements is for selection or choice of the type-face that is to be impressed, and another movement is for moving the type-head against the print-point; therefore an actuator for each key element is required. In a typewriter of this subclass, selection is made by a typist who moves the type-head manually, and movement of the type-head to the print-point is made by a single actuator that only moves the type-head to the print-point. A typewriter with this kind of mechanism is often called a "toy" typewriter.

(2) Note. In this subclass (165.2) selection of the particular type-face may be made by rotating the type-head manually or with the aid of a rack and pinion that is manually powered.