US PATENT SUBCLASS 400 / 162
.~.~ Type-head movable for selection of type-face


Current as of: June, 1999
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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.~.~ Type-head movable for selection of type-face {14}
162.1  DF  .~.~.~> Via pulley and cord arrangement
162.2  DF  .~.~.~> Via shortest peripheral path
162.3  DF  .~.~.~> Via coded disc in electric or magnetic circuit (e.g., photoelectric)
163  DF  .~.~.~> Via stepping motor responsive to selection
163.1  DF  .~.~.~> Via electrical or electromagnetic means {2}
164  DF  .~.~.~> Via helical arrangement of projections
164.1  DF  .~.~.~> Via pneumatic actuation
164.2  DF  .~.~.~> Via setting elements actuating selector-command member(s)
164.3  DF  .~.~.~> Control arm connected to selection gear and movable to engage key-lever actuated abutment
164.4  DF  .~.~.~> Via stop pins actuatable by key-board
164.5  DF  .~.~.~> Toothed member connected to selection gear and slidable by key-lever movement
164.6  DF  .~.~.~> Selection gear rotated by key-lever movement
165  DF  .~.~.~> Simultaneous rotation and translation of type-head by manually powered actuation (e.g., helical shift)
165.1  DF  .~.~.~> Via manually powered actuation other than by key-board (e.g, stylus selection) {1}


DEFINITION

Classification: 400/162

Type-head movable for selection of type-face:

(under subclass 160) Subject matter wherein the typewriter is provided with selecting mechanism for moving the type-head* relatively to its type-head-carrier* to select or choose the particular type-face* that is to be impressed against the record-medium* by movement of the type-head toward the record-medium.

(1) Note. The difference between this subclass (162) and subclass 161.1 above is that in this subclass the type-head is movable for selection of the particular type-face, whereas in subclass 161.1 the type-head is mounted on a type-head-carrier that is movable toward the record-medium, and the type-head-carrier is mounted on a carriage* that is movable for character-space* distances.

SEE OR SEARCH THIS CLASS, SUBCLASS:

154.1, for selecting a mechanism in a typewriter having a hammer movable for imprinting.

161.1, and see (1) Note above.