Improvements in Apparatus and Mode of Holding or Containing Bi-carbonate of Soda for Generating Carbonic Acid Gas to be Used in Aerating and Causing to Flow from the Barrel Draught Ale or other Beverages.
Year: 1886

page_text: Date of Application, 25th Mar., 1886.
Complete Left, 23rd Dec., 1886.
Complete Accepted, 15th Feb., 1887.
Improvements in Apparatus and Mode of Holding or Containing
Bi-carbonate of Soda for Generating Carbonic Acid Gas to be
Used in Aerating and Causing to Flow from the Barrel Draught
Ale or other Beverages.
WILLIAM ALDER How, Gentleman Burlington Road, New Malden Surrey, do
hereby declare the nature of this invention to be as follows:-
As stoneware draining pipes or tubes of suitable size pass from the draining pipe
machines in which they are formed I attach bottoms to them so that they become tubs
or jars capable of receiving gasometer bells they thus become combined generators
and gasometers such as I require for aerating and causing to flow from the barrel
draught ale and other beverages. To the top or other suitable part of the gasometer
I fix a tap so that air may be admitted if at any time there should not be a sufficient
supply of gas to cause the beverage to flow from the tap. The gas and air are
conveyed to the barrel by pipes. Another part consists in putting Bi-carbonate of
Soda into any suitable textile perforated or slit material, so that the material will have
a seive like action by allowing acid to come in contact with the Bi-carbonate and so
that the contact will not be too much or too little in order to get an even supply of gas.

page_text: Improvements in Apparatus and Mode of Holding or Containing
Bi-carbonate of Soda for Generating Carbonic Acid Gas to be
Used in Aerating and Causing to Flow from the Barrel Draught
Ale or other Beverages.
I, WILLIAM ALDER How, Burlington Road, New Malden, Surrey, Gentleman do
hereby declare the nature of my invention for GENERATING CARBONIC ACID GAS
TO BE USED IN AERATING AND CAUSING TO FLOW FROM THE BARREL DRAUGHT ALE
OR OTHER BEVERAGES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
In order to form a tub or jar I select sanitary stoneware draining pipes or tubes of
suitable size either plain or having socket flanges and attach ends or bottoms thereto,
and in this or other suitable manner form a receptacle, capable of resisting the action
of acids and the effects of effervescence, which when fitted with a bell or other inverted
vessel therein, and other appliances form generators and gasometers for the production
of carbonic acid gas from bi-carbonate of soda in the manner hereinafter described.
Near the top of such tub or jar a hole or holes are formed to be used for fastening
down the bell by means of a pin passed through a wedge so that such bell shall not
rise by force of gas pressure.
On the bottom of the tub or jar under the bell I place a stand or suspender on or
attached to which is to be placed bicarbonate of soda in a textile bag or wrapper;
or such bicarbonate of soda is to be placed under the said bell in a holder of perforated
slit or sievelike material.
On the top or other suitable part of the bell I attach an air tap and one or more
taps to which pipes are attached for the admission of gas to the barrel containing the
beverage, the object of the air tap being to permit air to enter the barrel through the
gas pipes and exert pressure on the carbonic acid gas therein, if at any time there
may not be sufficient pressure to cause the beverage to flow by reason of the partial or
complete exhaustion of the bicaronate of soda.
An important part of my invention consists in the mode of holding or containing
bicarbonate of soda for generating carbonic acid gas by placing the same in any suit-
able textile perforated or slit material so that the same will have a sievelike action and
allow acid in solution to come into contact with the bicarbonate of soda by penetrating
or soaking through numerous small openings interstices meshes pores or the like in
such manner as to avoid violent frothing or sudden eruption of gas but yet have
sufficient penetration or permeation to produce an even and plentiful supply of gas and
for this purpose I prefer any suitable texile material such as muslin or, the like to form
bags wrappers or parcels holding or containing suitable charges of bicarbonate of soda
ready to be at once placed or suspended in the generator as hereinbefore described
rendering any other holder or receptacle unnecessary. I also make other holders or
containers of any suitable material such as lead glass stoneware or the like having
numerous small sievelike openings.

page_text: The apparatus as used by me is shown in the drawing accompanying,
Fig. 1. is a sectional elevation.
Fig. 2. is a sectional half plan through line C. C.
Fig. 3. elevation of perforated holder.
In Fig. 1. A. is the tub or jar. B is the bell. D the stand. E the air tap. F. F. gas
taps. G the textile holder or container charged with bicarbonate of soda. H the
wedge for keeping down the bell. I. the pin passing though the tub and wedge.
In Fig. 2. J. half plan of textile holder. K. K. stand. I the bell. M. the tub.
Fig. 3. O. perforated holder or container.
MODE OF ACTION.
The bag wrapper holder or container charged with bicarbonate of soda is placed
within the bell and tub as shown in the drawing. The taps are closed and the
bell held down by the wedge and pin. Water is poured into the jar until it
rises to about three inches from the top. Sulphuric or other suitable acid is now
mixed with the water in sufficient quantity for the saturation of the
bicarbonate of soda, and the generation of carbonic acid gas. A tap is now
opened, the air will rush out of the bell and the water charged with acid
will enter and come into contact with the bag wrapper or holder and will soak_or
penetrate to the soda and carbonic acid gas will be immediately generated. The
tap should now be closed, when the gas pressure will cause the acid water to
recede from the holder and gas will cease to be generated.
The pipe may now be attached to the barrel or other vessel containing the
beverage, and the gas tap opened, and as the beverage is drawn the acid water
will return to the bicarbonate automatically and fresh gas will be generated until
the beverage is withdrawn or the ingredients exhausted.
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. The use and adaptation of sanitary stoneware draining pipes either plain or having
socket flanges into tubs or jars which when fitted with a bell or inverted vessel therein
and other appliances form generators and gasometers for the production of carbonic
acid gas from bicarbonate of soda contained in texile bags or wrappers or other holder
having a sievelike action to be used in aerating and causing to flow from the barrel
draught ale or other beverages, substantially as herein described.
2. The use of a pin and wedge for fastening down the bell so that such bell shall
not rise by force of gas pressure substantially as herein described.
3. The use of a stand or suspender on or attached to which is to be placed
bicarbonate of soda in a textile bag or wrapper substantially as herein described.
4. The use of the method of holding or containing bicarbonate of soda in a textile
bag or wrapper or the like suitable material for generating carbonic acid gas to be
used in aerating and causing to flow from the barrel draught ale or other beverages.
5. The use when desirable of a holder of lead glass stoneware or the like having
perforations slits or sievelike openings for placing bicarbonate of soda therein for
generation of gas.
6. The use of an air tap to permit air to enter the barrel through the gas pipes to
exert pressure on the carbonic acid gas therein at any time there may not be sufficient
gas pressure to cause the beverage to flow substantially as and for the purposes herein
described.
7. The use and combination of the foregoing claims with the gasometer bell or
inverted vessel to be used in generating carbonic acid gas for aerating and causing to
flow from the barrel draught ale or other beverages, substantially as and for the
purposes herein described.
D
TOY
WILLIAM ALDER HOW.