Improvements in and connected with Apparatus for Concentrating Sulphuric Acid and other Liquids
Year: 1896

page_text: Date of Application, 29th Dec., 1896.
Complete Specification Left, 28th Oct., 1897-Accepted, 4th Dec., 1897.
"Improvements in and connected with Apparatus for Concentrating
Sulphuric Acid and other Liquids."
I, THOMAS GEORGE WEBB, of Market Street, Manchester, in the County of
Lancaster, Glass Manufacturer, do hereby declare the nature of this invention to be
as follows;
This invention relates more particularly to that type of apparatus for concentrating
sulphuric acid and other liquids, known as the "continuous process" or wherein a
number of concentrating vessels are arranged wholly or partly on a stepped surface
inside a beating chamber, for instance such as described in Specification belonging to
Letters Patent No. 2343 of 1891 granted to me.
The fuel hitherto used for generating the required heat has been coal; coke or coal-
gas which method of heating causes a great deal of dust and dirt, is not expeditious
enough, wasteful and thus expensive.
The object of my invention is to so construct and provide the said type of apparatus
with means that water gas can be used for the generation of the heat required.
To this end, in lieu of generating the heat, as formerly in all other known
concentrating apparatus, at the higher end, I generate and directly introduce the
heat at the lower or delivery end of the apparatus only, which is of great advantage,
as no heat will be wasted and thus less fuel required: For this purpose I form at the
lower or delivery end of the heating chamber a number of slots or openings which
communicate with side chambers and the latter with à gas flue. The amount of
water-gas admitted into this gas flue is controlled by a valve which is in communica
tion with the supply pipe of the water-gas generator. The latter may be of any
suitable type and situated as may be found most convenient.
By means of the said valve the whole process of concentration is brought under
proper control, as the heat generated can be maintained uniformly and at any desired
degree which greatly facilitates the concentration of the various kinds of acids.or
liquids and prevents also breakage of the vessels which frequently occurred formerly
through overheating or irregular firing.
In connection with the said gas flue I form an air channel adapted to supply the
said side chambers with air which mixes with the water-gas therein and thus creates
combustion, from whence the hot gases pass through the said slots or openings into
the heating chamber of the apparatus. In connection with the said gas flue I form a
channel which serves for the reception of the products of combustion and allows of
readily removing the same.
By the method of heating described, a great amount of labour and 'fuel is saved,
the heat required can be generated in much less time and the whole process is
rendered free from dust and dirt which hitherto has been a great source of trouble
in coal or coke firing.
Dated this 98th day of Dec 1800

page_text: 16
Improvements in and connected with Apparatus for Concentrating
Sulphuric Acid and other Liquids."
I, THOMAS GEORGE WEBB, of Market Street, Manchester, in the County of
Lancaster, Glass Manufacturer, do hereby declare the nature of this invention and
in what manner the same is to be perforined, to be particularly described and
ascertained in and by the following statement:-
This invention relates more particularly to that type of apparatus for concentrating
Bulphuric acid and other liquids, known as the "continuous process" or wherein a
number of concentrating vessels are arranged wholly or partly on a stepped surface
inside a heating chamber, for instance such as described in Specification belonging
to Letters Patent No. 2343 of 1891 granted to me.
The fuel hitherto used for generating the required heat has been coal, coke or coal-
gas which method of heating causes a great deal of dust and dirt, is not expeditious
enough, wasteful and thus expensive.
.. The object of my invention is to so construct and provide the said type of apparatus
with means that water gas can be used for the generation of the heat required.
To this end, in lieu of generating the heat, as formerly in all other known
concentrating apparatus, at the higher end; I generate and directly introduce the
heat at the lower or delivery. end of the apparatus only, which is of great advantage,
as no heat will be wasted and thus less fuel required.
And in order that my invention may be more fully understood. I have caused to be
appended hereunto two sheets of drawings marked with letters of reference indicating
like parts in the various figures, Figs. 1 & 2 being longitudinal sections respectively
at lines A-A and B-B of Fig. 5, sheet II, Fig. 3 an end view, Fig. 4 a sectional
end view at line C-C of Fig. 1 and Fig. 5, 6 & 7-sectional plans at lines D-D,
B-E and F-F of Fig. 2, sheet I, of my improved apparatus.
In carrying out my invention and referring to the figures generally, which show a
double apparatus, I form in each side at the lower or delivery end of the heating
chamber a a number of slots or openings b which communicate with side or
combustion chambers c and the latter with gas flues d. The amount of water-gas
admitted into the gas flues d is controlled by valves e, Fig. 4, which by means of the
flues fare in communication with the supply pipe g of the water-gas generator h, see
Figs. 1 & 4. The water-gas generator may be of any suitable type and situated as
may be found most convenient for instance in the body of the apparatus at the supply
or higher end.
In connection with each side or combustion chamber c I form an opening in the
end wall of the apparatus, see Fig. 2, covered by a slide k which provides access to
the said chamber for cleansing and observation purposes.
In connection with each of the gas flues d I form an air channel controlled by
slides m and adapted to supply the side or combustion chambers c with air which
mixes with the water-gas at x, Fig. 2, and thus creates combustion, the hot gases
passing-from the side or combustion chambers c through the slots or openings b into
the heating chamber a of the apparatus.
In order to permit of readily removing the products of combustion from the. gas
flues f, f, I provide each outer end thereof with a door n, as shown in Fig. 4.
By means of the valve e, e, the whole process of concentration is brought under
proper control, as the heat generated can be maintained uniformly and at any desired
degree which greatly facilitates the concentration of the various kinds of acids or
liquids and prevents also breakage of the concentrating vessels which frequently
occurred formerly through overheating or irregular firing.

page_text: By the method of heating described, a great amount of labour and fuel is saved,
the heat required can be generated in much less time and the whole process is
rendered very free from dust and dirt which hitherto has been a great source of
trouble in coal or coke firing.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim, is-
let. In and connected with apparatus for concentrating sulphuric acid and other
liquids, the generation of heat from water-gas and air and introduction of the same
into the heating chamber at the lower or delivery end of the apparatus all substantially
as set forth.
2nd. In an apparatus as specified in the preceding claim, slots or openings 6 in
the sides of the lower or delivery end of the heating chamber a, in combination with
side or combustion chambers c and a gas and air flue d & respectively, the said side
or combustion chambers communicating with the said gas and air flues and the gas
flue with a water-gas generator, all substantially as and for the purpose set forth.
3rd. In an apparatus as specified in the preceding claims, the employment of a
valve e between the water gas supply f and the gas flue d, all substantially as and for
the purpose set forth.
Dated this 27th dex of 1907
F. BOSSHARDT & Co.
4, Corporation Street, Manchester, Agents to Applicant.