Improvements in Beer Containers, and Means for Exerting Pressure on the Liquid with Carbonic Acid Gas.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Beer Containers, and Means for Exerting Pressure
on the Liquid with Carbonic Acid Gas.
I, FRIEDRICH WILHELM MINCк, of 8 Neuenburgerstrasse, Berlin, in the
Empire of Germany, do hereby declare the nature of this invention to be as
follows:-
With previous delivery-containers of this kind the carbonic acid gas holder,
which must take up a considerable amount of space, has been placed inside the
beer-container whereby not only has the formation of rust, and pollution of the
beer been effected, but a large part of the beer bolding space is lost, so that a
correspondingly larger container must be made in order to hold the necessary
quantity of beer. Furthermore, previous apparatuses lacked a reliable pressure
regulating arrangement which could be minutely adjusted, and it has not therefore
been possible to pour the beer out quickly and free from froth or without an
excessive amount of froth. Finally another defect. may be pointed out in that
the whole mechanism of such apparatuses is exposed and may therefore be easily
damaged in transit or by carelessness on the part of the consumer.
The present invention obviates these disadvantages by placing the whole pouring
out arrangement in the upper closing cover, and also by the use of a highly sensitive
regulating apparatus.
In one form of beer supply container constructed according to this invention the
container proper is fitted with a hollow cover detachably secured thereto and acting
as a carbonic acid gas holder with attached chambers for receiving the carbonic
acid gas filling inlet and pressure regulating arrangements. The draw off tap is
fitted to the side of the cover and connected to a pipe which projects nearly to the
bottom of the container. The gas filling and inlet cock serves both for filling and
for the inlet of the carbonic acid gas to the regulating arrangement and comprises
a reversible plug constructed with a central bore, internal back stroke valve, side
bore and half round groove, and a casing in which the said plug is held in position
by a spring and back plate. The casing is bored with holes which in one position
of the plug put the carbonic acid gas container in communication with the carbonic
acid gas flask for the filling operation and in the other position with the beer
container for the outlet. The pressure regulating apparatus comprises a casing
communicating with the casing of the inlet cock, a valve for closing the com-
munication, a lever attached to the valve and adjustably connected by a vertical
rod to a flexible membrane contained in another casing and held in position by a
spring. The two casings of the pressure regulator are connected together by a
small tube which surrounds the vertical rod aforementioned. The action of the
regulator is as follows:-Carbonic acid gas flows into the regulator and passing
through the small tube comes against the underside of the flexible membrane
raising the same and with it the vertical rod and valve lever which raises the valve
gainst its seating stopping the supply as soon as the desired pressure is obtained.
When beer is drawn out the pressure is reduced and the flexible membrane returns
o its normal position under the action of the spring lowering the rod and valve
ever, and thereby opening the valve and allowing the gas to enter until the pressure
s re-established when the valve closes as before. The valve lever is adjusted

page_text: roughly for closing the valve according to the size of the vessel, before screwing
on the cover and a more accurate adjustment is afterwards effected by the spiral
spring on, which pressure is exerted by a screw cap. The casing containing these
parts of the regulator is in communication with the exterior of the container and
covered by a removable lid.
Dated this 27th day of November 1896.
WHEATLEY & MACKENZIE,
Agents.
Improvements in Beer Containers, and Means for Exerting Pressure
on the Liquid with Carbonic Acid Gas.
I, FRIEDRICH WILHELM MINCK, of 8 Nenenburgerstrasse, Berlin, in the
Empire of Germany, do bereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The present invention refers to a beer delivery container with carbonic acid
gas outpouring arrangement and is characterised by a very sensitive pressure
regulating apparatus and also by a combination carbonic acid filling and outlet
cock.
In the accompanying sheet of illustrative drawings
Fig. 1 shows a vertical section of an apparatus constructed according to this
invention..
Fig. 2 is a sectional end elevation of the carbonic acid gas cock.
On the top of the beer container a (preferably made of enamelled sheet iron)
with the upper edge a¹ is detachably fastened the closing cover b with the edge b'.
The fastening can for example be effected by means of three bow pieces c attached
by pivots on a', and the broadened ends of which clamp over 6 and encircle screw
bolts d fixed on b' so that they can be tightened on by means of a wing nut e, whereby a
rubber ring f between a¹ and 6' makes the joint gas and air tight. Above the cover bis
the carbonic acid gas holder g with the side draw tap h which is connected with the
riser tube i reaching to the bottom of a. On the other side and inside the container g
is fixed a specially constructed carbonic acil gas cock, which serves both for filling
and for the inlet of the carbonic acid gas to the regulating arrangement.
double object the cock plug is provided with the central bore and the back
enlargement m, the back stroke valve n movable therein, the side bore o and the
half round groove p, which can be seen more clearly in Fig. 2. The plug is kept
in position in the chamber s by a spiral spring 9 and a back plater screwed on.
The chamber is provided with connecting screw threads and also the side
borings o p p 2 corresponding to the boring o and the groove p. The outer
end of the plug k forms a square head k' with two uses in different positions.
In the one position, Fig. 1 the borings o and o' communicate together whilst pl
or p2 is brought opposite the groove p. If now for the purpose of filling the
carbonic acid flask is connected by screwing a tube into the thread s', the carbonic
acid gas flows through Imo and o¹ into the container g whilst the back stroke
valve n prevents its return. After the filling the plug k is reversed by a key so
that both borings pl and p2 communicate with the half round groove. The carbonic
acid gas now flows out of 9 through pl pp2 the tube t and the cover opening b 2
into the beer container a, having to pass through the regulating valve u. This
valve is seated on a lever v which is pivoted at v and the forked end v2 of which
encloses the thin screw end w¹ of a rod w, resting on a small curved disc.r¹ adjustable

page_text: by means of a nut x. The rod to projects upwards through a small tube y and is.
fastened at the top by means of a screw and small underlaying discs 2 to a
rubber membrane i which is pressed down by a spiral spring 2. The latter can be
more or less compressed by means of a screw cap 3. The action is also known:
The carbonic acid gas flows through the small tube y against the underside of the
membrane 1, curves this outwards and thus raises the rod w and lever v and closes
the valve u as soon as the desired pressure is attained. If beer is drawn out, the
pressure is reduced, we and vagain descend, the.valve u opens and carbonic acid
gas flows again until the pressure once more attains the former level. The
adjustability of the valve lever by means of the adjusting nut is herein of
importance, since thereby according to the size of the beer container (2, 5, 10 or
more litres) before screwing on the cover a rough adjustment of the lever can be
made; the close adjustment taking place afterwards by means of the cap 3 and the
spiral spring 2. It is thus possible with the same apparatus to draw beer to the
last drop from containers of different sizes, either completely free of froth or with
more or less froth as desired.
The upper and lower parts of the regulating apparatus are fitted in chambers 4
and 5 respectively within the carbonic acid gas container g. The adjusting nut
is accessible by means of a cover 6 which can be unscrewed. The openings in
the chambers s and 5 may be closed by means of covers 7 and 8 respectively
which can be unscrewed so that the whole head of the container remains plain
and other than the draw tap h possesses no projecting parts liable to damage.
Having now particularly described and ascertained the nature of my said inve.i-
tion and in what manner the same is to be performed, I declare that what I
claim is :
1. In beer supply containers having carbonic acid gas outpouring apparatus,
pressure regulating apparatus characterised by the valve lever v adjustably con-
nected by the rod w to the membrane 1 for the purpose of alteration of pressure.
for large and small beer containers.
2. In the beer supply container as in Claim 1, a combined carbonic acid gas
filling and inlet cock, characterised by a reversible plug k with a central bore I m
back stroke valve n, side bore o and half round groove p which in one position puts
the carbonic acid container g in communication, by means of the case borings o' pp2,
with the carbonic acid gas flask for the filling operation, and in the other position.
with the beer container a for the outlet.
Dated this 18th day of March 1897
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.