129 / 230
THE
BEET-RASP.
129
On
one
of
the
extremities
of
the
axis
of
the
cylinder
is
an
iron
pinion,
furnished
with
16
teeth,
working
those
of
a
wheel,
also
of
iron,
and
having
120
teeth
;
a
handle
of
18
inches
is
fixed
on
each
extremity
of
the
axis
of
this
wheel.
Under
this
cylinder
is
placed
a
kind
of
tank,
in-
clined
in
such
a
manner
as
to
send
the
pulp
obtained
into
a
bucket
filling
the
functions
of
a
recipient
;
on
the
same
face
of the
frame,
and
before
the
circumference
of the
cylinder,
is
adjusted
on
a
mobile
centre
a
kind
of
wooden
shutter,
which
receives,
from
the
axis of
the
pinion
and
by
the
aid
of
swing-gates,
a
to-and-fro
motion,
in
such
a
manner
as
alternately
to
open
and
close
the
interval
left
between
the
cylinder
and
that
same
shutter
for
the
pas-
sage
of the
beets
or
potatoes.
Nevertheless,
the
opening
is
limited
by
means
of
a
little
bar,
on
which
the
shutter
rests
in
its
back
motion.
All
the
parts
of
this
machine,
exceeding
the
frame,
are
enve-
loped
in
a
box,
surmounted
by
a
hopper
yielding
about
a
quintal
of
potatoes
or
beets.
From
this
kind
of
cage
it
results
that
the
trituration
is
efi'ected,
very
properly,
without
splashing
or
loss
of
matter.
2500
kilogrammes*
of
beets
or
potatoes
may
be
reduced
in
twelve
hours
by
this
rasp,
worked
by
only
two
men.
The
pulp
is
then
placed
in
bags,
w^hich
are
to
be
pil-
lared
and
submitted
to
the
action
of a
screwing
or
hydrau-
lical
press
:
this
kind
of
press
is
preferable
to
any
other,
because
it
possesses
the
greatest
force.
By
these
means
a
quantity
of
the
juice
is
obtained
proportionate
to
the
energy
of
the
machine
made
use
of.
With
a
cylindrical
*
A
kilogramme
is
about
two
pounds.