A NEW OR IMPROVED STILL OR BOILER FOR DISTILLING LIQUIDS CONTAINING AMMONIA
Year: 1882

page_text: LETTERS PATENT to Walter Alfred Barlow of 6 St. Pauls Churchyard in
the city of London Patent Agent and Engineer for an Invention of A
NEW OR IMPROVED STILL OR BOILER FOR DISTILLING LIQUIDS CONTAINING
AMMONIA A communication to him from abroad by Jacob Gäreis of Deutz
Prussia Engineer
PROVISIONAL SPECIFICATION left by the said Walter Alfred Barlow at
the Office of the Commissioners of Patents on the 4th July 1882.
WALTER ALFRED BARLOW of 6 St. Paul's Churchyard in the City of London
Patent Agent and Engineer. "A NEW OR IMPROVED STILL OR BOILER FOR
DISTILLING LIQUIDS CONTAINING AMMONIA a communication to me from abroad
by Jacob Gäreis of Deutz Prussia Engineer
This Invention relates to new or improved apparatus for distilling liquids con-
taining ammonia and the apparatus consists of four distinct vessels or receivers
two whereof contain the liquid to be distilled and one of the other vessels contains
besides the liquid to be distilled an addition of milk of lime which is introduced
from a superposed Vessel, the last of the four before referred to. The top of the
first vessel is open and reaches nearly to the bottom of the second vessel which is
arranged above the first vessel with a cylindrical Jacket attached to and projecting
downward serving as a bell cover to the first vessel-
The apparatus is set into a brickwork setting with fire grate below and the
lower chamber is heated directly by the flame from the grate the gases of
combustion passing by a pipe or duct directly into a chimney or flue.
The vapours and gases developed from the liquid in the first vessel flow between
the cylindrical jacket and said first vessel up against the bottom of the second
vessel, the liquid in said second vessel to which milk of lime has been added is
thereby caused to boil and is continuously agitated so that the heavy particles of
lime cannot settle to the bottom,
The vapours and gases arising from the second vessel ascend by a tube in the
bottom of the third vessel thence through another bell cover tube fixed in the
upper part of the third vessel and said vapours and gases will escape from below
[Price 6d.]

page_text: the mouth of the bell cover tube with the liquid in the third vessel to the bottom
thereof and partly heat the liquids in said third vessel aqueous vapours being in
part condensed and the remaining vapours pass an outlet tube from the said third
vessel to be worked up into sal-ammoniac, sulphate of ammonia and so forth.
When by continued boiling all the ammonia has been eliminated from the liquid
in the second vessel the said vessel is emptied by opening an outlet cock provided
on a discharge pipe.
The liquid contained in the third vessel is then admitted into the first vessel by
means of another discharge cock and its tube leading to the bottom of the first vessel
whereby the liquid already contained in said vessel flows over the top of said first
vessel under the tubular jacket bell cover into the second vessel, the outlet cock
whereof having previously been closed. When the second vessel is sufficiently full
the inlet cock is also closed; then by opening a second outlet cock at the top of
the second vessel as much hydrate of lime is admitted from a fourth vessel into the
second vessel as experience will show to be sufficient for liberating the ammonia in
the quantity contained in. the liquid in the second vessel.
Before recommencing the evaporation the third vessel is refilled with fresh liquid
for distillation from a reservoir placed at a higher level and the whole process is
repeated as above described.
A lid is provided and serves for convenience in cleaning the first vessel or
receiver. The small hand holes provided in the walls of the second vessel around
the same serve for cleaning said second vessel.
- For cleaning the third vessel the fourth vessel is to be unscrewed whereby access
is had. In place of the tube at the bottom of the third vessel two or more may be
used according to the size of the apparatus.
According to a modification of the whole system the fourth vessel is used
separately from the third vessel and the latter connected with the former by a pipe.
Instead of the heating device described any other heater may he used under the
first vessel or receiver.
The sectional form of said vessels may be round oval or angular, and gauge
glasses are provided to allow the height of the liquids within to be ascertained
Bm the outside
"

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
4th January 1883.
WALTER ALFRED BARLOW of 6 St Pauls Churchyard in the City of London.
Patent Agent and Engineer " A NEW OR IMPROVED STILL OR BOILER FOR
DISTILLING LIQUIDS CONTAINING AMMONIA a communication to me from abroad
by Jacob Gäreis of Deutz, Prussia Engineer
"
This Invention relates to new or improved apparatus for distilling liquids con-
taining ammonia and the invention is illustrated in the accompanying sheet of
drawings wherein Fig. 1 is a transverse section of this improved apparatus and
Fig. 2 is a plan thereof. The apparatus consists of four distinct vessels or
receivers A, B, C, D two whereof A and C contain the liquid to be distilled and
one of the other vessels B contain besides the liquid to be distilled an addition of
milk of lime which is introduced from a superposed vessel D the last of the four
before referred to. The top of the first vessel A is open and reaches nearly to the
bottom of the vessel C which is arranged above the first vessel with a cylindrical
jacket E attached to the bottom F and projecting downward serving as a bell cover
to the first vessel A.
The apparatus is set into a brickwork setting with firegrate below and the
lower chamber A is heated directly by the flame from the grate the gases of
combustion passing by a pipe or duct n directly into a chimney or flue
The vapours and gases developed from the liquid in the first vessel A flow
between the cylindrical jacket E and said first vessel A. to the bottom of the
vessel B the liquid in said second vessel to which milk of lime has been added is
thereby caused to boil and is continuously agitated so that the heavy particles of
lime cannot settle to the bottom
The vapours and gases arising from the second vessel B ascend by a tube g
fitted in the bottom of the third vessel C thence through another bell cover
tube a fixed in the upper part of the third vessel C and said vapours and gases
will escape from below the mouth of the bell cover tube a into the liquid in the
third vessel C to the bottom F thereof and partly heat the liquids in said third
vessel, aqueous vapours being in part condensed and the remaining vapours pass
through an outlet tube h from the said third vessel C to be worked up into sal-
ammonia sulphate of ammonia and so forth.
When by continued boiling all the ammonia has been eliminated or given over
from the liquid in the second vessel B the said vessel is emptied by opening an
outlet cock i provided on a discharge pipe. The liquid contained in the third
vessel is then admitted into the first vessel A by means of another discharge pipe r
and cock k whereby the liquid already contained in said vessel A flows over the
top of said first vessel A under the tubular jacket bell cover E into the second
vessel the outlet cock i whereof having been previously closed
When the second vessel B is sufficiently full the inlet cock k is to be closed
then by opening the outlet cock 7 of the vessel D as much milk of lime (hydrate of
lime) is admitted from the said fourth vessel D into the second vessel B as
experience will show to be sufficient for liberating the ammonia in the quantity
contained in the second vessel B.
Before recommencing the evaporation the third vessel is refilled with fresh
liquid for distillation from a reservoir placed at a higher level through pipe m and
the whole process is repeated as above described.
A lid o is provided to neck of vessel A for convenience in cleaning the said

page_text: vessel or receiver. The small hand holes p provided in the walls of the second
vessel and around the same serve for cleaning said second vessel B.
For cleaning the third vessel the fourth vessel D is to be unscrewed whereby
access is had. In place of the tube g at the bottom of the third vessel two or
more may be used according to the size of the apparatus.
According to a modification of the whole system the fourth vessel D is used
separately from the third vessel and the latter connected with the former by a
pipe. Instead of the heating device described any other heater may be used
under the first vessel or receiver A.
The sectional form of said vessels may be round oval or angular and gauge
glasses, y are provided to allow of the height of the liquids within to be
ascertained from the outside.
Having now described the nature and particulars of the said Invention I
claim
-
The new or improved still or boiler with the subsidiary parts for distilling liquids
containing ammonia constructed and operating as and for the purpose herein set
forth and described in reference to and shown by the drawings.
In Witness whereof I the said Walter Alfred Barlow have hereunto set my
hand and seal this third day of January in the year of our Lord one
thousand eight hundred and eighty three.