Improvements in Apparatus for Aërating Liquids and Raising Beer.
Year: 1889

page_text: Date of Application, 21st Feb., 1889
Specification Accepted, 1st June, 1889
COMPLETE SPECIFICATION.
Improvements in Apparatus for Aërating Liquids and Raising Beer.
I, ALEXANDER JAMES ELI, of the firm of Hughes, Eli & Hughes, of 76 Chancery
Lane, London, in the County of Middlesex, Patent Agents, do hereby declare the
nature of this Invention, a communication to me from abroad by Ferdinand Graef,
of Aichach, in the County of Upper Bavaria, and Kingdom of Bavaria in the German
Empire, Manufacturer, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This Invention relates to improvements in apparatus for aërating liquids and raising
beer or other liquids from one level to a higher one.
In the accompanying drawings Fig. 1 is an elevation of the apparatus for aërating
liquids in bottles, and Fig 2 a partial section thereof.
The apparatus consists of a hollow piston a capable of working to and fro in a
cylinder 6 provided at each end with a stuffing box, such boxes being indicated by the
letters d&e. A lever passing through a slotted yoke c at the end of the piston
furnishes a means for working same. The piston is provided with a small lateral
opening f, which, when it is pushed beyond the stuffing box d allows for the passage
of a charge of gas from the receiver or generator g which is provided with a controlling
valve h. When the lever C is released the pressure of the gas in the vessel g is
sufficient to force the piston back and the charge can then escape from the opening f
down the flexible tube k which is connected with the bottle holding apparatus, the
pressure of the gas being registered at the same time by the indicator i. A definite charge
is thus conveyed to the bottle at each stroke, which charge can be varied by using
pistons of different capacities.
By conducting the conduit hose of the extracted carbonic acid to a rocking
apparatus, on which is placed between an india rubber plate m and a screw n, a
bottle o having an automatical closing glass globe, and the rocking apparatus is then
subjected to a rocking movement and the liquor in the bottle will become impregnated
with carbonic acid and by a repeated pushing in of the lever at the same time
observing the pressure gauge and continually rocking, a liquor of any desired degree
of impregnation may be produced; on taking off the bottle, the rocking apparatus

page_text: must be so placed that the opening of the bottle will be directed downward and the
pressure of the carbonic gas in the bottle, will have the effect of pressing the globe p
against the india rubber ring 9 of the bottle & thus close the same.
Instead of using only one bottle, several bottles may be arranged on a larger
rocking apparatus; in this case the parts into which the carbonic gas enters are
connected by a communicating tube.
When charging larger vessels such for instance as beer barrels the repeated working
of the piston would be troublesome and to dispense with this the piston may be pro-
vided with a second opening so that a continuous current of gas may pass through
until the handle C is released when the piston will be forced back and the supply cut
off as before described. During the operation of charging the apparatus / must be
kept rocking until the desired pressure is indicated by the gauge i.
If this pressure
be exceeded, a safety valve will "blow off."
?'
For raising beer or other liquids the apparatus may be connected to the cock or
other part of the barrel and the liquid will be raised to a height corresponding to the
pressure.
Having thus 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. A hollow piston passing through two stuffing boxes and which by means of a
small lateral opening can be filled with carbonic acid returning automatically and
conducting the carbonic acid in a quantity according to the capacity of the hollow of
the piston to the communication hose which leads to any desired quantity of bottles
placed on a rocking apparatus.
2. In an apparatus such as described the hollow piston for producing a continuous
current provided with a second opening and which piston when the lever is left free
will automatically return and close itself.
Dated this 21st day of February 1889.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C.,
Agents for the Applicant.