US PATENT SUBCLASS 83 / 240
.~ Means to change tool position, or length or datum position of work- or tool-feed increment

Current as of: June, 1999
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83 /   HD   CUTTING

202  DF  TOOL ENGAGES WORK DURING DWELL OF INTERMITTENT WORKFEED {40}
240.~ Means to change tool position, or length or datum position of work- or tool-feed increment {2}
241  DF  .~.~> With means to vary magnitude of work-feed increment {4}
248  DF  .~.~> With means to vary magnitude or base position of tool stroke

DEFINITION

Classification: 83/240

(under subclass 202) Device wherein means is provided for (a) adjusting the work-feed means to alter the amount fed in each increment, or (b) changing the position of the work relative to the work-feed means, or (c) changing the position of tool or work-feed means relative to the device as a whole, or (d) changing the location of one or both of the limits of travel of a tool in its cutting or retracting stroke, without necessitating replacement of any machine part to bring about such variation.

(1) Note. This does not include pattern-controlled adjustments of tool or work-feed, for which see subclass 71, supra.

(2) Note. This does not include temporary disturbance of cycle by manual intervention, for which see subclass 57, supra.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57, and see (2) Note, above.

71, and see (1) Note, above. 209+, and 211+, for work-moving or work-stopping means controlled by work-sensing means in a machine of subclass 202 type.

234, for means to vary number of work-feed increments between cuts.

249, for means enabling the shift of work relative to a work-feed means by an operator.

252, for means capable of producing an additional work-feed increment by intervention of an operator.

268+, for work-feed increment limited or determined by work stop.

657, 677, 696, 699.51+, for adjustable tool or tool support.