necessary. This was done before he started the roller on its course.
Usually, not much straightening out was required, owing to the
semi-stiff nature of the skin: and, if there were small ragged pieces
not straightened out, he did not trouble about them ; they were of
no value. When the operator had got the skin into position for
pressing, most of it would still be lying on the feeder's shelf. Having
got the skin into position, the operator started the roller, and, when
it had reached the end of its course, thus pressing the part of the
skin nearest to himself, the operator pulled the skin further towards
himself in order that the roller, when returning, would press a further
strip of the skin; and so on until the skin was pressed throughout.
Directly the roller started on a journey the feeder's shelf and the
operator's shelf both automatically went up about 1} inches: and
when the journey was completed they dropped back automatically.
Whilst the shelves were up there would be less danger that the feeder
or the operator would put his hand or fingers in between the plate
and the strip whilst the roller was in motion. It would, at the begin-
ning of the roller's journey, be possible to put his fingers in, but it
seemed difficult to the trial judge to imagine that anyone, however
inexperienced, would be tempted to do so. But, if a hand was in
at the moment when the roller started, the raising of the shelf would
be likely to cause the hand to be held there: and if the roller was
not stopped in time the fingers would be squeezed between the plate
and the strip as the roller was coming along. And, if the feeder,
having his hand in that position at the moment when the roller
started moving, called out to the operator to stop it, the noise of the
shelves going up might prevent the operator from hearing the call ;
but his Honour thought that if the feeder was doing his work as he
should be doing it, his hand would not get into a position of danger.