to a wooden
centre as it emerges from the bowls of the calender, measured as well,
and the winding-on mechanism is of a friction drive somewhat similar
to that mentioned in connection with the dressing machine. Cloths
for this purpose are often made up to 600 yards in length; indeed,
special looms, with winding appliances, have been constructed to
weave cloths up to 2,000 yards in length. Special dressing machines
and loom beams have to be made for the latter kind. When the
linoleum backing is finished at the calender, both cloth and centre
are forwarded direct to the linoleum works. The empty centres are
returned periodically.
Narrow-width cloths are often made up into a roll by means of a
simple machine termed a calenderoy, while somewhat similar cloth,
and several types of cloths of much wider width, are lapped or
folded by special machines such as that illustrated in Fig. 46. The
cloth passes over the oblique board, being guided by the discs shown,
to the upper part of the carrier where it passes between the two bars.
As the carrier is oscillated from side to side (it is the right hand
side in the illustration) the cloth is piled neatly in folds on the
convex table. The carriers may be adjusted to move through different
distances, so that any width or length of fold, between limits, may
be made.
Comparatively wide pieces can be folded on the above machine, but
some merchants prefer to have wide pieces doubled lengthwise, and
this is done by machines of different kinds. In all cases, however,
the operation is termed "crisping" in regard to jute fabrics. Thus,
Fig. 47, illustrates one type of machine used for this purpose, and
made by Messrs. Urquhart, Lindsay & Ca., Ltd., Dundee. The
full-width cloth on the right has obviously two prominent
stripes--one near each side. The full width cloth passes upwards
obliquely a triangular board, and when the cloth reaches the apex it
is doubled and passed between two bars also set obliquely on the left.
The doubled piece now passes between a pair of positively driven
drawing rollers, and is then "faked," "cuttled," or pleated as
indicated. The machine thus automatically, doubles the piece, and
delivers it as exemplified in folds of half width. In other
industries, this operation is termed creasing and, rigging. Some of
the later types of crisping or creasing machines double the cloth
lengthwise as illustrated in Fig. 47, and, in addition, roll it at
the same time instead
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