Improvements in Apparatus for Mixing Liquids and Gases.
Year: 1894

page_text: Date of Application, 31st Oct., 1894
Complete Specification Left, 6th June, 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Mixing Liquids and Gases.
I, AUGUST BLOCH, of Elberfeld, in the Empire of Germany, Inspector of Baths,
do hereby declare the nature of this invention to be as follows:-
My present invention relates to that class of apparatus, covered by my British
Patent No. 8646 of 1893 for mixing liquids and gases and more particularly for
making up certain kinds of baths such as carbonic acid baths in which the water is
previously impregnated with carbonic acid.
In the apparatus of the Patent above mentioned water was sprayed into a
receptacle exhausted by means of an injector and was then by means of a second
injector drawn from the said receptacle impregnated and returned to receptacle
again. Two injectors were employed, one to expel the air from the reservoirs or
receptacles into which the water was sprayed and the other for impregnating the
water with gas.
The object of the present invention is to dispense with one of the injectors and
to perform the whole operation with the aid of one injector. I also advantageously
employ only one tank instead of two. This I accomplish by providing the injector
with a double supply pipe system by means of which steam and gas may be
alternately supplied to the same. The said injector has also two connections from
the interior of the tank or receptacle, one of which opens into the receptacle at a
point near the top and the other near the bottom, both said connections being in
communication with the suction side of the injector. The opposite or pressure side
of the injector is connected by means of pipes, which may be employed indepen-
dently of each other with the upper interior of the receptacle and with the
atmosphere or other receptacle.
Thus by closing the pipe connection from the pressure side of the injector to the
interior of the receptacle and from the suction side to the lower part of the tank
and opening that from the upper part of the tank to the suction side and from the
pressure side to the air and actuating the injector by means of steam or the like,
the tank may be exhausted and by closing the above connections and opening
the gas connection to the injector, the upper inlet to the tank from the pressure
side and the lower outlet from the tank to the suction side of the said injector the
liquid may be drawn from the tank, impregnated with the gas and forced back into
the said tank.
Whilst the tank is exhausted the liquid is sprayed into the same as described in
my Patent above referred to.

page_text: Improvements in Apparatus for Mixing Liquids and Gases.
I AUGUST BLOCH of Elberfeld, Brausenwertherplatz, Germany Municipal
Bathing Inspector do hereby declare the nature of this invention and in what
manuer the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
My invention relates to new and useful improvements in apparatus for mixing
liquids with gas, the process of which is described and claimed in my Letters
Patent No. 8646/93.
The new arrangement has generally for its object to simplify the apparatus in
such a manner that for deaerating the liquid and mixing it with gas only one and
the same extractor or sucking apparatus may be used.
On the accompanying drawing the device is shown in combination with one
vessel which is represented in Figure 1 in a vertical section and in Figure 2 in a
plan.
Similar letters of reference relate to similar parts in the drawing.
P is the vessel of cylindrical form which is everywhere closed. It is provided
with a water pipe a coming from the water supply. i represents the air extractor
which deaerates the liquid and causes the mixing of the same with gas.
c¹
For this purpose the extractor is connected with the cylinder by a pipe
running upwards in it and reaching over the water level. By a pipe gi the
extractor is joined with the steam or water power supply and further on it carries a
vertically arranged pipe ƒ¹.
Now the named pipes are all provided with the valves g, c and which when
they are opened allow the working of the extractor for deaerating purposes, which
being actuated by steam or water power entering through y sucks the air from the
cylinder P and presses it through the valve and the pipe f¹ in the open air as
shown by the arrows.
The extractor is beside the described pipes connected with the cylinder p by a
pipe drunning down to the bottom of it and being fitted with a valve d.
From the pipe f¹ goes a pipe b' provided with a valve b to the vessel where it
plunges with its orifice into the liquid, and a third pipe ¹ having a valve h is
connected with the extractor i and the gas supply.
Now when the mixing of liquid and gas should be done the valves gc and must
be closed and the valves h, d and b opened. The extractor being now worked by
the gas for instance carbonic acid entering at h¹ presses the gas into and through
the liquid as will be understood from Figure 1 in the direction of the arrows and the
mixing of the liquid is obtained in a very simple and good manner.
At the side of the cylinder may be arranged a vessel 9 containing solutions of
salt and the like which as addition to the liquid may be sucked from the vessel
into the cylinder by a pipe q' whilst a water gauge q² serves for showing the
quantity of said additions.
From the bottom of the cylinder runs a pipe fitted with a valve e which has for
its object to let off the mixed liquid.
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.
1. In combination with an apparatus for mixing liquids and gases the arrange-
ment and use of one extractor which deaerates air from the liquid and serves also
for mixing the liquid with gases.

page_text: 2. The combination of the claimed extractor i with the mixing apparatus p by
pipes g, c, and valves g c and ƒ for deaerating purposes and the pipes h, d
and valves hd b for mixing purposes.
The whole as and for the purpose set forth.
Dated this 1st dex of June 1805
AUGUST BLOCH,
By A. Daumas.