Year: 1898

page_text: I, THOMAS CLEGHORN FLEMING, Architect, of 6, Viewforth Square, Edinburgh,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in aerated water syphons or bottles and
has for its object to provide means for preventing the explosion of the said
syphons from the pressure of the gases therein.
For this purpose I provide the neck of the syphon with a spring safety-valve
regulated to permit of the escape of the gases when they reach a certain pressure.
The said safety-valve is fitted to and passes through the india-rubber washer
fitted to and supporting the central tube of the syphon. It also passes through
the metal washer or disc fitted above to the rubber plug fixed to the said tube, and
the rear of the valve may be formed in the said metal washer or disc, the valve
spindle extending down through the perforations in the washers and being fitted
with a coiled spring for keeping the valve closed and permitting of its being
opened when the gases within the syphon exceed a certain pressure. The gases,
after escaping past the valve may pass through the spout of the syphon or through
a special passage or opening formed in the head.
DL 2011
A 1000
J. B. FLEURET,
5, Hatton Garden, Holborn Circus, London, E.C.,
Agent for the Applicant.
I, THOMAS CLEGHORN FLEMING, Architect, of 6, Viewforth Square, Edinburgh,
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 fol-
lowing statement.
This invention relates to improvements in aerated-water syphons and has for
its object to provide means for preventing the explosions of the said syphons by
the action or pressure of the gases therein.
For this purpose the neck or upper end of the syphon is provided with a spring
safety-valve so regulated as to permit of the escape of the gases when they reach
a certain pressure.
The said safety-valve is fitted to and passes through a small opening or perfora-
Price 8d1

page_text: tion formed in the india-rubber washer fixed to and supporting the central tube
of the syphon.
The seat of the valve is formed in the metal washer or disc fitted above to the
rubber plug fixed to the said central tube, for which purpose the said washer or
disc is perforated and recessed for receiving the head of the valve, which may
be of a spherical conical, or other suitable shape.
The valve spindle passes downwards through the perforations in the said washers
and is provided with a coiled spring for keeping the valve closed to its seat,
under ordinary conditions, but which permits of the valve being opened by the
gases within the syphon when their pressure exceeds a certain amount the valve
again closing when the pressure of the gases is reduced to its normal condition.
The gases, after escaping past the valve, pass through the spout of the syphon,
or through a special passage or opening formed in the head.
And in order to fully understand my invention reference is made to the accom-
panying sheet of drawings in which Fig. 1 is a central vertical section of an
aerated-water syphon fitted with my improved safety-valve and Fig. 2 is a view
of the upper part of the central tube to a larger scale shewing the supporting
washers in section and the valve applied to the same.
a is the syphon bottle of ordinary construction and 6 the central tube thereof,
e is the india-rubber washer and c¹ the metal washers fitted to the said tube, d is
the safety-valve of globular or circular shape fitting into a seating formed in the
upper washer c¹ and whose spindle d¹ passes vertically through the perforations in
the washers as shewn.
This spindle is fitted with the spiral spring e bearing at one end against the
lower washer c¹ and at the other end against the adjusting nut f. The metal or
other head of the syphon is provided with the small hole or passage g for the
escape of the gases after passing the valve d.
The spring e keeps the valve closed under ordinary or normal pressures but
should such pressure increase the valve will be lifted from its seat and the gases
will escape through the small hole g thereby preventing the explosion of the
syphon.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same it to be performed, I declare that what
I claim; is:-
(1) The improvements in aerated-water syphons comprising a spring safety
valve carried in the neck or upper part of the syphon for freeing the latter from
any desired pressure of the. gases within substantially as described.
(2) In aerated-water syphons the combination with the syphon or bottle a,
central tube band washers c, c¹, of a safety valve d having its seat on the upper
washer and whose spindle passes through perforations in the said washers,
the spiral spring e and adjusting nut f fitted to the spindle, and the hole or pas-
sage in the head h of the syphon substantially as described and for the purposes
specified.