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28

THE

COMPLETE

PRACTICAL

DISTILLER.

almost

placed

in

immediate

contact

with

the

steam

pro-

duced

by

the

still.

To

this

effect

the

steam

meets

with

obstacles

in

falling,

and

presents

itself

multiplied

obsta-

cles

to

the

ascension

of

the

steam,

which

this

body

cannot

conquer

without

passing

through

the

wine;

by

these

means

the

latter

is

divided,

and

so

perfect

a

contact

is

established,

that,

in

a

very

short

time,

the

analysis

is

com-

pleted.

In

fact,

the

wine

arrives

almost

boiling

in

the

column, through

the

conduit

D

E,

without

having

lost

any

part of

its

alcohol

;

and

the

more

it

descends

toward

the

still

A,

the

more

it

is

deprived

of

it,

until

it

falls

in

the

still

in

a

state

of

spent-wash.

The

contrary

takes

place

with

the

vapours

supplied

the

still

A

;

on

leaving

it

they

are

quite

watery,

and

they

arrive

at

the

point

C

of

the

column

in

a

very

rich

state,

although

this

richness

is

always

proportionate

to

that

of the

wine

operated

upon.

The

little

tube

c

d

is

a

level

necessary

for

the

purpose

of

observing

and

conducting

the

work.

It

will

thus

be

seen

that

this

column

of

distillation,

little

elevated

as

it

is,

fills

the

same

functions

as

a

multiplicity

of

stills.

It

offers

better

results

and

greater

effects,

with

much

less

copper,

and

presents

the

advantage

attached

to

the

system

of

continuity.

III.

The

Rectifier.

This

is

that part

of

the

apparatus

which

is

marked

c

G

;

it

surmounts

the

column,

of

which

it

is

only

a

continuation,

and

contains

the

same

mechan-

ism.

The

spirituous

vapours,

such

as

they

are,

supplied

by

the

column,

pass

through

the

rectifier,

by

the

conduit

H,

into

the

wine-warming

condenser,

which

will

be

imme-

diately

spoken

of.

There

they

are

rendered

richer

in

alco-