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40

THE

COMPLETE

PRACTICAL

DISTILLER.

the

water

which

passes

in

the

state

of

steam

out

of

the

still

A

is

to

be

replaced,

and

as

it

is

indispensable

that

this

water

should

be

very

hot,

it

is

drawn

from

the

worm-

tub

E

through

00

0]

before

it

enters

the

still

it

passes

through

G,

where

the

matter

is

boiling

hot.

Cock

No.

4

regulates

the

quantity

of

water

which

is

to

be

introduced.

When

all

the

matter

has

been

pumped

out,

the

process

is

continued

for

about

a

quarter

of

an

hour,

for

the

pur-

pose

of

exhausting

the

matter

left

in

the

column.

The

fire

is

then

drawn

off

3

cock

No.

1,

fixed

on

the

tube

a

a

a,

is

opened,

as

also

cock

No.

3,

which

is

fixed

to

the

tube

K

on

the

lower

part

of

the

column.

The

next

day

the

ope-

rations

are

recommenced

in

the

same

way.

The

column

and

the

condensers

are

left

filled

with

matter.

There

is

another

system

of

continuous

distillation

which

will

here

be

described

;

it

possesses

the

advantage

that

it

can

be

applied

(the

distilling

column)

to

the

neck

of

the

still.

See

fig.

4,

on

the

opposite

page.

Description

of

the

Apparatus.

A,

double

still,

having

a

copper

partition

in

the

middle,

which

divides

it

from

top

to

bottom

)

there

is

a

hole

at

the

lower

part of

the

partition,

so as

to

establish

a

communication

between

the

two

stills.

B,

first

distilling

column.

C,

second

distilling

column.

Each

of

these

columns

contain

an

evaporator

in

the

form

of

a

double

vice

of

Archimedes.

D

is

a

common

capital

or

head

belonging

to

the

first

column.

E,

I

capital

or

condenser,

for

the

purpose

of

makings

strong

spirits.