RUNNING THE WIRE

177

|ust before it is held by the suction boxes. Dandy rolls that are too short and
have prominent discs on their ends are a source of trouble. Cracks on the
edges of the wke are often caused by the 'spades' of the guide roll stick.

Setting and Running the Wire.—After a new wire has been put on, and all

\Jatnes Bertram and Sons Ltd.
FIG. 62.—AUTOMATIC WISE GUIDE

fittings have been replaced, it is necessary to tension and 'set' the wire, so
that it will answer to the guide (Figs. 62 and 63), keep in the centre of the
machine, and make an equally couched and uniform sheet. With the stretch
roll swinging freely and the top couch roll with equal weight on both sides, the
new wke should run for a few minutes and be worked by hand guidance to the

[Jmcs Bertram **So*s Ltd.
FIG. 63.—AUTOMATIC Wots Gun*

centre of the rolk The guide-bar spades are then fixed dose to the edges of
the wke. There is no need to leave any space for the wke to move, unless
it has an irregular or a waved edge, when sufficient is left to keep die edges