Year: 1888

page_text: [Communicated from abroad by EVAN ROWLANDS, of No. 116, Collins Street, West,
in the City of Melbourne, and Colony of Victoria, Aerated Water Manufacturer.]
I, OLIVER IMRAY, of No. 28 Southampton Buildings Chancery Lane, in the County
of Middlesex, Fellow of the Institute of Patent Agents, do hereby 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
,
This invention of improved apparatus for drawing aerated liquid from fonts or
reservoirs has been designed to enable it to be supplied to a drinking vessel in a
comparatively quiescent state notwithstanding that it is drawn from a font or reservoir
in which it is retained at a high pressure. This is accomplished by allowing the
aerated liquid to flow into an intermediary chamber in which the excess of pressure
in the liquid beyond atmospheric pressure is allowed to blow off before it is drawn off
into the drinking vessel. By this means it retains a greater percentage of gas than
if it were delivered under pressure into an open vessel as from an ordinary syphon.
The main feature of this invention therefore is the introduction of an intermediate
chamber for the reception of the aerated liquid after it leaves the font or reservoir
and before it enters the drinking vessel.
In this specification I have shewn the two best apparatus known to me which
illustrate my invention but I do not confine myself to these as it would be comparatively
easy for persons skilled in the art to which this invention relates to construct other
apparatus which would embody my invention.

page_text: The form of apparatus which I prefer is one in which the intermediary chamber
takes the form of a glass or metal sphere or cistern and is placed on the top end of a
vertical stand pipe which at its lower end is attached to the font-supply pipe. This
stand pipe is furnished with a spout and three valves one of which governs the supply
from the font the second governs the blow-off of the surplus pressure from the
intermediary chamber and the third governs the supply from the intermediary chamber
to the tap or spout. These valves are all controlled by the one hand wheel which is
arranged on the spindle of the said latter supply valve.
A modification of this form of apparatus is to make the intermediary chamber of
two spheres one above the other and connected together by a neck in which a valve is
arranged as hereinafter explained.
In order that my invention may be well understood I will now proceed to describe
it with reference to the accompanying sheet of drawings in which
Figure 1 is a side elevation of one form of my apparatus shewing in section the
connection between a glass spherical intermediary chamber and the stand pipe and
also the connection between a glass spout and the stand pipe.
Figure 2 is a central vertical section of the essential parts of Figure. 1 shewing
the intermediary chamber and the delivery spout as constructed of metal.
Figure 3 is a central vertical section on line a. a. Figure 2 and shewing the spray
tap connected to the branch piece A of the stand pipe.
Figure 4 is a transverse section on line b, b, Figure 2 shewing the blow-off valve
in its altered position.
Figure 5 is a transverse section on line c, c, Figure 2.
Figure 6 a transverse section on line d, d, Figure 1, while
Figure 7 is a plan of the inner face of the hand wheel shewing the extent of the
cam-face thereon.
Figure 8 shews a modification of my apparatus with an alternative construction of
intermediary chamber in the form of two glass spheres or globes instead of one as in
Figures 1 and 2.
The stand pipe or pillar is made in two parts, A and A', the lower part A¹ having a
screwed lower end A³ for connecting its central hole A3 with the supply pipe leading
from the font or supply reservoir. Above the upper end of the central hole A3 a
winged valve A' is arranged and the stop for this valve consists of a perforated disc A³
which is screwed in position as shewn. A is an annular chamber formed in the
pillar A¹ to receive the blow-off from the intermediate chamber and convey it to the
waste pipe A. Parts A and A¹ are screwed together as shewn and in the lower part
of A is another winged valve A8 which governs the supply leading from the font to
the intermediary chamber B. This valve A is opened and closed by the cam C
secured on the trunk or hollow end of the spindle C which has at its end the valve C²
which governs the opening leading to the delivery spout A°. The neck or spindle of
valve is arranged in the trunk end of the spindle (and is secured therein by the
pin C³ the point of which passes into a recess in the neck of the valve. Spindle C¹
is screwed at C and such screw fits in the nut C³ screwed into a suitable branch at
the side of the pillar A and the outer end of this nut is furnished with a stuffing box
and gland C as shewn to make a good joint around the spindle C¹. A10 is a coiled or
spiral spring arranged to press upwards the valve As. B is the blow-off or vent
pipe leading from near the top of the intermediary chamber to the elbow A" formed
in the interior of the upper part A of the pillar and this elbow leads to the chamber A¹
in which a valve B2 is arranged which is pressed against its seating by a coiled or
spiral spring B³. The stem of this valve extends outwards through its bearing piece A¹³
and is acted upon by a cam face D' on the inner face of a hand-wheel D which is
secured on the before-mentioned screwed valve spindle C. A branch pipe B leads
from a passage under the valve B2 and the lower end of this pipe is led to the annular
chamber A formed in the pillar A¹. When the intermediary chamber B and spout A
are formed of metal they are connected to the part. A as shewn in Figure 2 but when
constructed of glass as in Figure 1 the intermediary chamber has a neck B³ with a
recess in it and in this recess is fitted a screwed coupling piece B6 (made in halves)

page_text: which fits in the socket B' screwed or otherwise attached to the top end of the piece A.
The spout when constructed of glass has a flange A¹ formed at its upper end and this
is grasped by a metal coupling A which is screwed to the part A. Suitable insertions
are provided between the glass and the metal to make a joint and these constructions
are shewn in Figure 1.
The
When the intermediary chamber is formed in two parts as shewn in Figure 8 and
constructed of glass the lower sphere B has an upper neck B³ as well as a lower one
and this upper neck is connected as described for the lower neck to the coupling
piece F to the top of which another sphere F' is secured in a similar manner.
blow-off pipe B extends to near the top of the upper sphere and around it in the
centre of the coupling F is a narrow annular passage F2 and beyond this passage an
india-rubber valve F3 arranged on a perforated seating F. These spheres if desired
may also be constructed of metal.
The spray tap for taking off the aerated liquid at its full pressure may or may not
be attached to the apparatus. Figure 3 shews it attached to the part A, a branch E
springing therefrom at a position at right angles to the spout A and the end of this
branch is furnished with a valve chamber and valve E¹ which is opened and closed
by a small hand-wheel E2 the spindle of which is furnished with stuffing box and gland
as shown. E is its downwardly projecting nozzle or spout.
The mode of operation is as follows, the apparatus being arranged say in the bar
of an hotel and its lower branch A² connected to the supply pipe leading from the
font or supply reservoir which contains the aerated liquid. Now when it is wished to
draw off a supply the hand-wheel is turned in the direction indicated by the arrow,
its first effect being to allow the supply valve AB to close by rotating the cam C clear
of its top end and this is done while the outer stem of blow-off valve B² is in the
gap
between the cam face D¹ of the hand wheel. Then, immediately such valve A³ is
closed the blow-off valve B2 is opened by the cam face D¹ passing under its stem and
so forcing it inwards to open the valve. The excess of pressure now blows off through
parts marked B and A to the waste pipe A' and when the hand-wheel has performed
about a third of its revolution the pin C³ attached to screwed spindle C¹ comes into
contact with the shoulder on the stem of valve C² and so opens it to allow of the
supply quietly falling out through the spout A'to the drinking vessel. The back face
of the cam contacting with the inner face of the nut C forms a stop to regulate
the travel of the hand-wheel. After the requisite supply is taken from the apparatus
the hand-wheel is re-turned back, when the supply is again cut off and the apparatus
assumes its normal condition with the blow-off passage closed and the supply valve
from the font open. When a spray of aerated liquid for mixing purposes is required
the valve E' is opened which admits of the outflow of the liquid under pressure.
When the intermediary chamber is formed of two spheres as shewn in Figure 8 the
liberated gas and foam gather in the upper sphere and are blown off therefrom through
the pipe B as before, the lower chamber being thus retained full of the aerated liquid,
in readiness for being discharged when the supply is cut off from the font and the
valve governing the outlet spout A³ opened.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
First. In apparatus for drawing off aerated liquid from fonts or reservoirs, the use
of an intermediary chamber into which the liquid under pressure is led and while
therein allowed to blow out its excess of pressure before being drawn off into a drinking
vessel substantially as herein described and explained.
Second. Constructing such intermediary chamber in one or two parts and of either
glass or metal and securing it to the stand pipe of the apparatus above the operating
valves, substantially as herein described and explained and as illustrated in Figures 1,2
and 8 of my drawings.
Third. In apparatus for drawing off aerated liquid from fonts or reservoirs, the
arrangement of the three valves controlled by the revolution of the one hand wheel

page_text: and designed to govern the blow-off from the intermediary chamber the supply from
the font and the supply leading to the spout substantially as herein described and
explained and as illustrated in my drawings.
Fourth. In an apparatus for drawing off aerated liquid from fonts or reservoirs the
general combination and arrangement of the stand pipe the intermediary chamber
the three valves above claimed and the hand wheel and either with or without the
small tap at the side of the stand pipe for drawing off liquid under pressure
substantially as herein described and explained and as illustrated in my drawings.
Dated this 21st day of January 1888
ABEL & IMRAY,
Agents for the Applicant.