US PATENT SUBCLASS 83 / 288
.~.~.~.~ To vary an end-product "length" (e.g., "crop cut")

Current as of: June, 1999
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83 /   HD   CUTTING

284  DF  CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK {17}
285  DF  .~ With means to initiate intermittent tool action {2}
286  DF  .~.~ Tool moved in response to work-sensing means {4}
287  DF  .~.~.~ With means to vary "length" of product {1}
288.~.~.~.~ To vary an end-product "length" (e.g., "crop cut")

DEFINITION

Classification: 83/288

(under subclass 287) Device provided with means to alter the longitudinal dimension of the first product cut from a workpiece with respect to the longitudinal dimension of the remaining products cut from the same workpiece.

(1) Note. The work "crop" is an art term referring to that end portion of a workpiece which is so irregular in contour or composition as to be considered waste material. To produce regular sheets from a rolled slab, for instance, waste or "crop" may be trimmed from the leading and/or trailing end of the slab, the intermediate cuts producing the usable products which are usually of longer dimension than the crop and of similar dimension as between successive usable products.

(2) Note. Included herein are patents also disclosing means to change the length of intermediate products so that a short trailing "crop" end may be cut.