US PATENT SUBCLASS 234 / 121
.~ Differentially positionable input element (e.g., lever)


Current as of: June, 1999
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234 /   HD   SELECTIVE CUTTING (E.G., PUNCHING)

120  DF  WITH INPUT MEANS OTHER THAN PATTERN SENSER TO CONTROL TOOL SELECTION {2}
121.~ Differentially positionable input element (e.g., lever)


DEFINITION

Classification: 234/121

(under subclass 120) Device wherein the responsive means comprises a member which is capable of adjustment to two or more positions, in each of which positions it generates a distinct signal or impulse effective to control the selection of tools to be actuated.

(1) Note. A differentially-positionable input element is typically a slide bar, a drum or a pivoted lever, by means of which a plurality of distinct tool-selection controls may be obtained, as distinguished from a simple key or pushbutton which has only one effective or control position.

(2) Note. The control signal or impulse of the subclass definition is to be distinguished from the input-impulse*

which effects adjustment of the movable input member.

(3) Note. In many cases, a visual guide such as a numbered scale, or a design to be reproduced, is associated with the positionable input device but does not of itself exert a control on the positioning of the input member (i.e., it is not a pattern*).

SEE OR SEARCH THIS CLASS, SUBCLASS:

40, for means to hold a picture or design to be traced by a manually-movable stylus controlling tool selections. 74, for a differentially-responsive pattern senser.