US PATENT SUBCLASS 83 / 425
.~ Cut made parallel to direction of and during work movement

Current as of: June, 1999
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83 /   HD   CUTTING

401  DF  WITH MEANS TO CONVEY WORK RELATIVE TO TOOL STATION {18}
425.~ Cut made parallel to direction of and during work movement {12}
425.1  DF  .~.~> Including nonconcurrently acting tool
425.2  DF  .~.~> Including plural, laterally spaced tools {1}
426  DF  .~.~> Interrelated work-conveying and tool-moving means {4}
431  DF  .~.~> With means to press work to tool
432  DF  .~.~> Bevel cutting tool
433  DF  .~.~> Tool shiftable relative to work-conveying means
434  DF  .~.~> Tool in contact with surface of work-conveying means
435  DF  .~.~> Tool between laterally spaced work-conveying means
435.11  DF  .~.~> By rectilinearly moving work carriage {5}
435.2  DF  .~.~> By work moving flexible chain or conveyor
436.1  DF  .~.~> By feed roller {1}
436.2  DF  .~.~> Unattached manual work pusher

DEFINITION

Classification: 83/425

(under subclass 401) Device in which a cutter is located at a cutting zone in the path of moving work and whose cutting plane (as disclosed) is substantially parallel to said path and to the direction of movement of the work for constant cutting contact with said work, and including claimed means for moving the work to and through said cutting zone for constant cutting of said work.

(1) Note. This subclass includes tools known generally in the art as "slitters" as well as saws.

(2) Note. The word "constant" as used above does not preclude the operation of means to reposition the cutter out of (and thus, also, back into) the cutting zone in the absence of work thereat. The cutting is constant so long as (a) the cutter remains in its cutting position and (b) the work is moved toward and past it. The following conclusions flow from consideration of this qualification:

(i)

The cutter does not have a cycle of operation known as "tool

feed"), in that it does not move to and through the work during cutting. If the cutter has a movement, its movement is limited to: (1) a bodily movement of the cutter into a position wherein it will cut the work, or out of such cutting position, but in either such case while the work is absent from the cutting zone; or (2) an internal movement such as will present a fresh cutting edge to the work; for example, as by rotation of a rotatable circular blade or by reciprocation of a blade, but in either case while the cutting edge remains in contact with the work. If the cutter is moved into the work while the work is at the cutting zone, such movement is part of a cutting cycle, and a patent claiming such structure is not found herein. For such patent see subclasses 202+, 284+, and 350+.

(ii) The work may be, for instance, a succession of relatively closely-spaced articles, each of which articles is to be cut or slit longitudinally of the direction of article movement from the leading end to the trailing end of each article regardless of the orientation of the article. It also may be a web of indeterminate length, for instance, which is to be slit longitudinally of its length.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202+, 284+, and 350+, see (2) Note above.

469+, for a feature relating to a rotatable disc-blade cutter, alone or cooperating with a mating cutter.

651+, for a feature relating to fixed blade type of cutter, per se.

788+, for an endless band-knife cutter positioned for continuous engagement with moving work.