d finisher card are obviously due to the circular movement
of the pins since all these (with the single exception of those in
the draw-head mechanism of certain finisher cards) are carried on the
peripheries of rotating rollers. In the draw-head mechanism, the
pins move, while in contact with the fibres, in a rectilinear or
straight path. In the machines which fall to be discussed in this
chapter, viz., the "drawing frames," the action of the pins on the
slivers from the finisher card is also in a straight path; as a
matter of fact, the draw-head of a finisher card is really a small
drawing frame, as its name implies. Moreover, each row or rather
double row, of pins is carried separately by what is termed a
"faller." The faller as a whole consists of three parts:

1. A long iron or steel rod with provision for being
moved in a closed circuit.

2. Pour or six brass plates, termed "gills" or
"stocks," fixed to the rod.

3. A series of short pins (one row sometimes about
1/8 in. shorter than the second row), termed gill or
hackle pins, and set perpendicularly in the above
gills.

The numbers of fallers used is determined partly by the particular
method of operating the fallers, but mostly by the length of the
fibre. The gill pins in the fallers are used to restrain the
movements of the fibres between two important pairs of rollers.
There are actually about four sets of rollers from front to back of
a drawing frame; one set of three rollers constitute the "retaining"
rollers; then comes the drawing roller and its large pressing roller;
immediately after this pair is the "slicking" rollers, and the last
pair is the delivery rollers. The delivery rollers of one type of
drawing frame, called the "push-bar" drawing frame, and made by
Messsrs. Douglas Fraser & Sons, Ltd., Arbroath, are seen distinctly
in Fig. 17, and the can or cans into which the slivers are
ultimately delivered are placed immediately below one or more
sections of these rollers and in the foreground of the illustration.
The large pressing rollers, which are in contact with the drawing
roller, occupy the highest position in the machine and near the
centre of same. Between these rollers and the retaining rollers are
situated the above-mentioned fallers with their complements of gill
pins, forming, so to speak, a field of pins.

Each sliver, and there maybe from four to eight or more in a set,