Improvements in Draught Tubes of Syphon Bottles.
Year: 1891

page_text: Date of Application, 6th Nov., 1891
Complete Specification Left, 8th Aug., 1892-Accepted, 1st Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Draught Tubes of Syphon Bottles.
I FREDERICK FOSTER of Niagara Works, Eagle Wharf Road, Hoxton in the
County of Middlesex Engineer do hereby declare the nature of this invention to
be as follows:-
The object of my invention is to so construct the draught tube of a syphon bottle
that the flow of aërated liquid into the bottle for filling purposes may proceed
without undue obstruction and that the outward flow when emptying the syphon
may be so restricted that the liquid pours steadily into the glass or other receptacle
held to receive it. By this means the gas with which the liquid is charged does
not escape so freely as in the case of emptying a syphon provided with an ordinary
straight draught tube, and overflow from the glass or other receiving vessel is
avoided.
For this purpose I provide the draught tube with a metallic or other suitable
cup or thimble cast or otherwise hermetically fixed thereon in the usual way to
obtain the necessary flange for securing the draught tube in the bottle by means of
the syphon top or tap screwed thereon. This cup or thimble I make in two parts
the one arranged to screw into the other in a manner to secure a washer of
vulcanized india rubber or other suitable flexible material between the two parts.
The lower part which is fixed upon the glass draught tube is made with a slight
shoulder to support the said washer the greater part of which bridges over a hollow
space formed in the said lower part. The upper part is flat upon its under side
which bears upon the washer and is perforated with a hole sufficiently large to
allow free passage for the aërated liquid passing the valve of the syphon in the
usual way. The flexible washer is perforated with a smaller hole which is
distended during the inward flow of aërated liquid for filling purposes; such liquid
under pressure bearing upon the washer which is supported only upon the shoulder
in the lower part of the cup or thimble extending to a short distance only
from the outer circumference of the washer. During the outflow of the liquid from
the syphon bottle the pressure is exerted upon the washer which is supported by
the flat underside of the upper part of the cup or thimble nearly to the edge
of the perforation through the washer, thereby preventing distention of the said
perforation and restricting the outward flow of liquid from the syphon in the
manner described.
Dated this 6th day of November 1891.
AYRTON & THOMAS,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Draught Tubes of Syphon Bottles.
I, FREDERICK FOSTER of Niagara Works, Eagle Wharf Road, Hoxton in the
County of Middlesex, Engineer, 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 :-
The object of my invention is to so construct the draught tube of a syphon bottle
that the flow of aerated liquid into the bottle for filling purposes may proceed without
undue obstruction and that the outward flow when emptying the syphon bottle
may be so restricted that the liquid pours steadily into the glass or other receptacle
Pin I

page_text: held to receive it. By this means the gas with which the liquid is charged does
not escape so freely as in the case of emptying a syphon provided with an ordinary
straight draught tube and overflow from the glass or other receiving vessel is
avoided.
"
I am aware that in order to restrict the outflow of liquid from a syphon bottle,
draught tubes, coiled to increase their length or twisted in other forms to obstruct
the passage of liquid therethrough have been employed but such means are not
applicable to syphon bottles for containing aërated liquids of small intrinsic value
first on account of the additional cost of making tubes of such forms and secondly
on account of the loss of time in filling syphon bottles ..tted with such tubes which
obstruct the inflow of liquid in the same measure as the outflow.
I make my improved draught tube in the manner shown by the accompanying
drawing in which
Figure 1 is a sectional view of the draught tube showing the deflection of the
obstructing washer during the inflow of the liquid.
Figure 2 is a sectional view of the draught tube showing the position of
obstructing washer during the outflow of the liquid.
Figure 3 is a plan of the upper side of Figure 2.
Figure 4 is a plan of an obstructing washer cut radially from the central
perforation.
Figure 5 is a vertical section showing my invention applied to a bottle.
The draught tube A is provided with a metallic or other suitable cup or thimble
cast or otherwise hermetically fixed thereon in the usual way to obtain the necessary
flange B.for securing the draught tube in the syphon bottle by means of the syphon
top or tap screwed thereon. This cup or thimble I make in two parts CD, the
part C being made to screw into the part D in a manner to secure in position
between these two. parts, a washer E of vulcanized india rubber or other suitable
flexible material. The lower part D which is fixed upon the draught tube A is
made with a slight shoulder F to support the flexible washer E, the greater part
of which bridges over a hollow space G formed in the said lower part D. The
upper part C is flat upon its underside which bears upon the flexible washer E and
is perforated with a hole H sufficiently large to allow free passage for the aërated
liquid passing the valve of the syphon in the usual way.
The flexible washer E is perforated with a smaller hole J which is distended as
shown in Figure 1 during the inward flow of aerated liquid for filling purposes such
liquid under pressure bearing upon the upper side of the flexible washer E which
is supported upon the shoulder F in the lower part D of the cup or thimble
extending to a short distance only from the outer circumference of the flexible
washer.
During the outflow from the syphon bottle the pressure of the aërated liquid is
exerted upon the underside of the flexible washer E, the upper side. of which is
backed by the flat underside of the upper part C of the cup or thimble nearly
to the edge of the perforation J in the flexible washer thereby preventing
distention of the said perforation and restricting the outward flow of liquid from
the syphon bottle in the manner described.
In Figure 41 have shown a form of obstructing washer perforated and cut
radially in several places. Such an obstructing washer may be made of less
flexible material than that which is to have its perforation distended. It may even
be made in thin metal such as hard rolled silver. The free passage in this case is
not produced by distending the perforation but by depressing the tongues which
radiate from the perforation.
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. A draught tube for syphon bottles having within its water way a perforated
washer or diaphragm capable of distention or depression in the direction of the

page_text: inflow and backed so as to avoid distention or upheaval in the direction of the
outflow substantially as and for the purposes set forth.
2. The combination of a draught tube for syphon bottles, a cup or thimble made
in two parts screwed together and a flexible washer or diaphragm distensive in one
direction only substantially as and for the purposes set forth.
3. The combination of a draught tube for syphon bottles, a cup or thimble made
in two parts screwed together and a flexible washer cut radially and depressive in
one direction only substantially as and for the purposes set forth.
4. A cup or thimble for draught tubes of syphon bottles made in two parts
screwed together enclosing an obstructive device restricting the area of the passage
in one direction only substantially as and for the purposes set forth.
Dated this 6th day of August 1892.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.