Improvements in "Seltzogenes" or Syphons for Aërated Liquids.
Year: 1891

page_text: Date of Application, 7th Nov., 1891
Complete Specification Left, 24th Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in "Seltzogenes" or Syphons for Aërated Liquids.
I, EUGENE GERAUT, of 1 and 2, Corporation Buildings, Farringdon Road, in
the City of London, Manufacturer, do hereby declare the nature of this invention
to be as follows :-
My invention relates to ordinary "seltzogenes" or "syphons," in which aërated
liquids such as soda water are kept under heavy pressure and are drawn off as
required through a suitable tap.
It is important in such seltzogenes or syphons that the aërated liquid contained
in them should not come in contact with metal, and the object of my invention is to
make the valve and seat through which the liquid is discharged as required of
vulcanized or hard india rubber, vulcanite, celluloid, or other material of the like
kind which is not liable to affect the aërated liquid, arranged in such manner that
the latter when passing through the discharging valve only comes in contact with
such materials.
Seltzogenes or syphons of the kind described are of two sorts, viz. :-those in which
the valve is kept closed by a strong spring which is raised from its seat by pressing
upon a comparatively short lever when it is desired to draw off any part of the
contents, and those in which the valve is kept pressed upon its seat by the pressure
of the aërated liquid and is opened by means of a long lever pressing it down
against the pressure in the vessel.
In the first case, I arrange and fix upon the upper end of the glass tube which
descends in the usual way nearly to the bottom of the vessel a flange of the material
above described having upon its upper surface a short projecting tube or hollow
cone which serves as a seat for the valve which is pressed down upon it by a strong
spring contained in the upper part of the apparatus in the usual way. In the metal
socket which is screwed upon the top of the seltzogene or syphon I form a recess
in which fits the flange upon the upper end of the glass tube just described which
is held firmly in position upon the upper edge of the neck of the vessel by the
metal cap which is screwed down upon it, with the intervention if necessary of an
india rubber ring.
Above the recess and flange is a lateral opening communicating with the usual
discharge tap. Into the lower end of the spindle which is forced down by the
spring and raised when desired by the lever, I screw a pin or stud the lower end of
which is formed into a more or less spherical shape having a rounded flange above
it, and over this sphere and flange I fit a covering of india rubber sufficiently
elastic to be stretched over them and held in position by its elasticity. The india
rubber covered sphere forms the valve which is pressed down by the spring upon
the seat fixed, as already described, upon the upper end of the glass tube.
It will be seen that the liquid in the syphon vessel can only come in contact
with the india rubber or other material of the kind described, and not with metal.
Instead of india rubber other suitable material of suitable kind may be fitted or
formed round the syphon to form the valve.
Where the valve is kept closed by the pressure in the vessel, and is pressed down
to open it, I fix upon the upper end of the glass tube a short tube of material such
as described of larger diameter than the valve so that the latter can descend into it
when pressed down, leaving an annular space for the liquid to pass up, and I make
a flange upon the upper end of this short tube by which the latter is held in place
in manner already described. Into a recess in the metal screw cap of the seltzogene
or syphon I fit a flange formed upon the lower end of a short tube of the material
already described, the lower face of the flange round the central opening forming

page_text: the seat for the valve and being held in its place by the screw cap in the way
already described against the flange at the upper end of the glass tube.
Through the side of the short tube is an opening communicating with the usual
discharge tap.
A spindle which can be depressed by the handle and is raised by a spring,
passes freely down through the tube and its lower end is screwed into the upper
end of a metal or other plug having a more or less hemispherical top whilst its
lower part is cylindrical and of less diameter. Round and over the hemispherical
top I fit a piece of india rubber or other sufficiently elastic suitable material
which is contracted round the lower edge of the hemispherical top and descends for
a sufficient distance down and round the cylindrical part.
Round the cylindrical part of this india rubber and round the lower part and
bottom of the central cylindrical plug I make a coating of vulcanite or other
suitable material the outer diameter of which is equal to and forms a prolongation
of the india rubber hemispherical coating forming the valve, such diameter being
sufficiently small to allow it to pass freely into the short tube upon the upper end
of the glass tube, as already described, when the valve is opened by forcing it
downward. It will be seen that in this arrangement also the liquid in the vessel
does not come in contact with metal, but only with the uninjurious material
described.
The shape and proportions of the several parts may be varied more or less as
may be found advisable and the whole apparatus is simple, cheap, clean, and
durable, and the india rubber or other parts described, which are unaffected by the
liquid, made so that they can be readily removed and replaced or renewed as
required.
Dated this 7th day of November 1801
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in "Seltzogenes" or Syphons for Aërated Liquids.
I, EUGENE GERAUT, of 1 and 2, Corporation Buildings, Farringdon Road,
in the City of London, Manufacturer, 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 and accompanying
drawing, that is to say :-
"
My invention relates to ordinary "seltzogenes or "syphons," in which aërated
liquids such as soda water are kept under heavy pressure and are drawn off as
required through a suitable tap.
It is important in such seltzogenes or syphons that the aërated liquid whilst
contained in them should not come in contact with metal, and the object of my
invention is to make the valve and seat through which the liquid is discharged as
required of vulcanized or hard india rubber vulcanite, celluloid, or other material
of the like kind which is not liable to injuriously affect the aërated liquid, arranged
in such manner that the latter when passing through the discharging valve only
comes in contact with such materials.
Seltzogenes or syphons of the kind described are of two sorts, viz. :-those in
which the valve is kept closed by a strong spring which is raised from its seat by
pressure upon a lever of sufficient length and power when it is desired to draw off
any part of the contents, and those in which the valve is kept pressed upon its seat
by the pressure of the aërated liquid and is opened by means of a lever pressing it
down against the pressure in the vessel.
The accompanying drawing is in illustration of my invention, Figure 1 being a
section through the upper part of a syphon in which the vessel is kept closed by a

page_text: spring, and Figure 2 a section through one in which the valve is pressed upon its
seat by the pressure of the aërated liquid.
In the first case, I arrange and fix upon the upper end of the glass tube a which
descends in the usual way nearly to the bottom of the vessel (which is not shewn
in the drawing) a flange, of the material above described having upon its upper
surface a short projecting tube or hollow cone which serves as a seat for the
valve d which is pressed down upon it by a strong spring e contained in the upper
part of the apparatus in the usual way but can be raised by a lever when required. In
the metal socket which is screwed down upon the top of the seltzogene or syphon
I form a recess in which fits the flange upon the upper end of the glass tube just
described which is held firmly in position upon the upper edge of the neck of the
vessel by the metal cap screwed down upon it, with the intervention if necessary
of an india rubber ring 9.
Above the recess and flange is a lateral opening / communicating with the usual
discharge tap i. Into the lower end of the spindle which is forced down by the
spring and raised when desired by the lever, I screw a pin or stud k (shewn
separately in Figure 3) the lower end of which is formed into a more or less
spherical shape having a rounded flange above it, and over this sphere and flange I
fit a covering of india rubber / sufficiently elastic to be stretched over them and
held in position by its elasticity. The india rubber covered sphere forms the alve
which is pressed down by the spring upon the seat fixed, as already described, upon
the upper end of the glass tube a. It will be seen that the liquid in the syphon
vessel can only come in contact with the india rubber or other material of the kind
described, and not with metal.
Instead of india rubber other material of suitable kind may be fitted or formed
round the end of the pin or stud k to form the valve.
Where the valve is kept closed by the pressure in the vessel (as shewn in
Figure 2) and is pressed down to open it, I fix upon the upper end of the glass
tube a a short tube 6 of material such as described and of larger diameter than the
valve c, so that the latter can descend into it when pressed down, leaving an annular
space for the liquid to pass up, and I make a flange d upon the upper end of this
short tube b by which the latter is held in place in manner already described by
screwing down the cap f. Into a recess in the metal screw cap of the seltzogene
or syphon I fit a flange formed upon the lower end of a short tube / of the
material already described, the lower face of the flange round the central opening
forming the seat for the valve c and being held in its place by the screw cap in the
way already described when the cap f is screwed down against the flange d at the
upper end of the glass tube.
Through the side of the glass tube is an opening communicating with the
usual discharge tap i. A spindle k which can be depressed by the handle m and is
raised by a spring n, passes freely down through the tube h, and its lower end is
screwed into the upper end of a metal or other plug o having a more or less
hemispherical top whilst its lower part is cylindrical and of less diameter. Round
and over the hemispherical top I fit a piece of india rubber or other sufficiently
elastic suitable material p which is contracted round the lower edge of the
hemispherical top and descends for a sufficient distance round and down the
cylindrical part.
Round the cylindrical part of this india rubber p and round the lower part and
bottom of the central cylindrical plug o I make a coating of vulcanite or other
suitable material r the outer diameter of which is equal to and forms a prolongation
of the india rubber hemispherical coating p forming the valve, such diameter being
sufficiently small to allow it to pass freely into the short tube b upon the upper end
of the glass tube a, as already described, when the valve is opened by forcing it
downward. It will be seen that in this arrangement also the liquid in the vessel
does not come in contact with metal, but only with the uninjurious material
described.
The shape and proportions of the several parts may be varied more or less as

page_text: may be found advisable and the whole apparatus is simple, cheap, clean, and
durable, and the india rubber or other parts described, which are unaffected by the
liquid are made so that they can be readily removed and replaced or renewed as
required, the materials which I use being preferably hard rubber, vulcanite,
celluloid, and the like. Instead of the seat of the valve in the arrangements
described being of hard material, the latter may be of the hard material and the
seat of the soft material.
The arrangements described may be applied to syphons or seltzogenes of all
kinds.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In seltzogenes or syphons for aërated liquids, the combination of the flange b,
having a valve seat on its upper surface, and the valve d consisting of a central
plug and an external covering 1, the whole constructed of the materials described,
and arranged and operating substantially in the manuer described and illustrated
in Figures 1 and 3.
2. In seltzogenes or syphons for aërated liquids, the combination of the enlarged
tube b and flange d, tube and flange g having a valve seat on its lower side,
valve c consisting of a central plug o screwed upon the spindle k, upper coating p
and outer lower coating r, the whole constructed of the materials described, and
arranged and operating substantially in the manner described and illustrated in
Figure 2.
Dated this 24th day of December 1891
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.