IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF HYDRO-OXIDE OF CARBON FOR COMMERCIAL PURPOSES BY THE DIRECT INTRODUCTION OF LIQUID PROTOXIDE OF HYDROGEN
Year: 1879

page_text: LETTERS PATENT to Walter Alfred Barlow, of 6, St. Paul's Churchyard,
London, Patent Agent and Engineer, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR THE MANUFACTURE OF HYDRO-OXIDE OF CARBON FOR
COMMERCIAL PURPOSES BY THE DIRECT INTRODUCTION OF LIQUID PROTOXIDE
OF HYDROGEN."
Paris, France.
A communication from abroad by Gabriel Dehaynin, of
PROVISIONAL SPECIFICATION left by the said Walter Alfred Barlow at
the Office of the Commissioners of Patents on the 12th November 1879.
WALTER ALFRED BARLOW, of 6, St. Paul's Churchyard, London, Patent Agent
and Engineer. " IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF
HYDRO-OXIDE OF CARBON FOR COMMERCIAL PURPOSES BY THE DIRECT INTRO-
DUCTION OF LIQUID PROTOXIDE OF HYDROGEN." A communication from abroad
by Gabriel Dehaynin, of Paris, France.
This apparatus consists of one or more cylindrical tubes or retorts, made of iron
or brass, enclosed in a brick or metal furnace. This tube or retort is placed hori-
zontally in the furnace, and is connected at the back by a siphon, through which
is introduced the liquid protoxide of hydrogen. The cylindrical retort carries in
front a head provided with an ascension tube; this head is also provided with a
movable cover, held in position by a clamp and bolt. On the top of the furnace in
which is mounted the retort or retorts a rectangular opening is provided, through
which the necessary combustibles for heating are introduced; this opening is closed
by a movable cover. At the lower part of the furnace is the fire bars with their
supports, as well as a fire door. The part between the fire bars and the foundation
of the furnace is the ash pit.
To work the apparatus the retort or retorts is or are made red hot, and a certain
quantity of carbon is then introduced, and the head is closed by means of the cover

page_text: and clamp. The liquid protoxide of hydrogen is then introduced into the retort by
way of the siphon, which fulfils the following conditions:-
First. Permits the entrance of the liquid into the apparatus.
Second. Causes an equilibrium to be made by the liquid itself against all
pressures which may arise in the manufacture of the gas.
The liquid after passing through the siphon goes on to the hot part at the bottom
of the retort and is immediately converted into vapour. These vapours in rising
are decomposed by the red carbon and are transformed into hydro-oxide of carbon.
The bottom of the retort may then be called the "evaporating chamber."
The hydro-oxide of carbon gas once formed is carried into a washer by means of
the ascension tube at the head of the retort, and from there into a gasometer.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Walter Alfred Barlow in the Great Seal Patent Office on the 12th
May 1880.
"
WALTER ALFRED BARLOW, of 6, St. Paul's Churchyard, London, Patent Agent
and Engineer. IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF
HYDRO-OXIDE OF CARBON FOR COMMERCIAL PURPOSES BY THE DIRECT INTRO-
DUCTION OF LIQUID PROTOXIDE OF HYDROGEN." A communication from abroad
by Gabriel Dehaynin, of Paris, France.
This apparatus consists of one or more cylindrical tubes or retorts, made of
iron or brass, enclosed in a brick or metal furnace. The said tube or retort is
placed horizontally in the furnace, and is connected at the back by a syphon
tube, through which is introduced the liquid protoxide of hydrogen. The cylindrical
retort carries in front a head provided with an ascension tube, which head is
also provided with a movable cover, held in position by a clamp and screw
bolt. On the top of the furnace in which is mounted the retort or retorts a
rectangular opening is provided, through which the necessary combustibles for
At the lower
heating are introduced; this opening is closed by a movable cover.
part of the furnace are the fire bars with their supports, as well as a fire door
and ash pit below.
In the Drawings Fig. 1 is a back view, Fig. 2 a front view, and Fig. 3 a vertical
longitudinal section of apparatus according to the Invention.
A is the cylindrical tube or retort in iron or brass; B, the head; C, the clamp ;
and D, the screw bolt of same; E, syphon tube for the introduction of the
protoxide of hydrogen; F, the furnace enclosing the tube or retort A; G, movable
cover for the introduction of combustibles; M, furnace bars with their supports P ;
O, ascension tube for the leading off of the gas; Q, furnace door; R, the tap
supplying the liquid protoxide of hydrogen to the syphon tube; S, ashpit door of
the furnace; and T, smoke pipe of the furnace.
To work the apparatus the retort or retorts A is or are made red hot, and a
certain quantity of carbon is then introduced therein, and the head is closed by
means of the means of the cover and clamp C, D. The liquid protoxide of hydrogen
is then introduced into the retort by way of the syphon E, which fulfils the
following conditions :----
First, provides for introduction of the liquid protoxide of hydrogen into the
apparatus; and, second, effects an equilibrium by the liquid itself against all
pressures which may arise in the manufacture of the gas.
The liquid after passing through the syphon discharges upon the hot part of the
bottom of the retort A and is immediately converted into vapour, which vapours in
rising through the heated carbon are transformed into hydro oxide of carbon.
This chamber A may therefore be called the "evaporation chamber."
The bydro-oxide of carbon gas once formed is conducted into a washer or scrubber
by means of the ascension tube O at the head of the retort, and thence into a
gasometer.
Having now described the nature and particulars of the said Invention in such
wise that the same may be readily carried into practical effect, I claim, the improve-
ments in apparatus for the manufacture of hydro-oxide of carbon for commercial
purposes by the direct introduction of liquid protoxide of hydrogen, consisting of
the retort A, one or more, carried and heated in the furnace F, fitted with the

page_text: syphon supply tube E and ascension gas tube O, with the subsidiary parts, con-
structed and operating substantially as and for the purpose herein specified and
described in reference to the accompanying Drawings.
In witness whereof, I, the said Walter Alfred Barlow, have hereunto set
my hand and seal, this Eleventh day of May, in the year of our Lord One 5
thousand eight hundred and eighty.
WALTER A. BARLOW. (L.S.)