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118
THE
COMPLETE
PRACTICAL
DISTILLER.
receive
the
fecula;
the
sieve
is
suspended
on
the
upper
part
of
the
tub
with
ropeS;
so
as to
be
immersed
in
the
water
a
to-and-fro
movement
is
given
to
it,
by
which
means
the
pulp
is
freed
from
its
fecula,
which
falls
to
the
bottom
of the
tub.
After
this
operation,
the
pulp
is
entirely
ex-
hausted
by
merely
sprinkling
a
small
quantity
of
water
over
it.
This
is
but
a
modified
disposition,
which
is
thought
useful,
and
which
does
not
in
the
least
alter
the
mode
of
working.
The
fecula,
thus
separated
from
the
pulp,
sinks,
after
an
hour's
rest,
to
the
bottom
of
the
tub,
when
the
depth
of
the
tub
does
not
exceed
60
or
70
cen-
timetres,
and
forms
a thick
and
solid
sediment.
Holes
made
in
the
sides
of
the
tub
are
then
opened
;
that
near-
est
the
top
of
the
sediment
included.
The
water
runs
off,
and
the
fecula
is
left
in
the
bottom.
If
the
latter
is
to
be
made
in
solid
pieces,
it
is
drained
in
the
following
manner.
DRAINING.
For
this
purpose,
an
apparatus
called
a
drainer
is
made
use
of.
It
is
a
wooden
chest,
open
on
one
side,
widening
m
the
shape
of
a
cone
toward
the
opening.
The
sides
and
bottom
of
this
chest
are
filled
with
an
infinity
of
small
holes
;
the
exterior
part
is
covered
with
a
cloth
of
strong
linen
or
hemp.
This
drainer
must
be
placed
above
the
tub
destined
to
receive
the
water
that
is
to
be
drained
the
fecula
is
then
placed
in
the
drainer,
and
in
the
course
of
twenty-four
hours
it
loses
all
the
superfluous
water
which
it
retained,
and
is
found,
it
is
true,
in
a
state
of
humidity,
bat
it
is
sufficiently
solid
to
be
transported
without
being