(57) A device for the inspection and repair of a roll of web material includes an unwind
mandrel, a rewind mandrel, an inspection area and a splice area. A flaw in the web
is detected at the inspection area, whereupon the web is braked to a halt. Where the
splicc area is adjacent to or coincident with the inspection area, the flawed portion
of the web can pass well beyond the splice area before the web comes to a halt. Provided
herein is a web-indexer device that includes a reciprocating indexer shuttle having
idler rolls mounted thereon, with further idler rolls mounted to the machine such
that the web material can be strung between them in a substantially boustrophedonic
configuration. Control means are provided to allow the operator who has caused the
web to be braked to a halt upon detecting a flaw, to move the indexer frame so as
to retrieve a portion of the web so as to bring the flaw back to the splicing station
for repair, without having to reverse the rotational direction of the unwind mandrel
or the rewind mandrel.
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