An Improvement in Taps.
Year: 1890

page_text: Date of Application, 23rd Apr., 1890
Complete Specification Left, 23rd Jan., 1891-Accepted, 28th Feb., 1591
PROVISIONAL SPECIFICATION.
An Improvement in Taps.
I, FREDERICK WALTER, of 47, Hassett Road, Homerton, in the County of
Middlesex, Mechanical Draughtsman, do hereby declare the nature of my invention
to be as follows:-
My invention relates to taps for the withdrawal of liquids or gases and mor
especially to those used with liquid under high pressure, where the operation of
snifting is necessary in order to relieve the superfluous air or gas in the vessels being
filled.
My invention consists in the construction and arrangement of parts of such a tap
so as to render it perfectly tight between the inlet and outlet orifices, special means
being provided for taking up wear in a simple manner no gland being required for
the spindle or stem of the tap as the pressure is not in communication therewith, it
can also be quickly and cheaply repaired and manufactured.
In order to carry my invention into effect I form a flat seating in the body of
the tap and a passage leading from the centre of this seating to the neck or shoulder.
containing the outlet passage.
I arrange another passage upon the said seating communicating with the inlet
passage of the tap situated preferably halfway between the centre or outlet passage
and the outside of the seating. I may arrange upon the seating a washer of leather
or other suitable material having orifices corresponding to the passages.
This washer may be prevented from turning upon the seating by forming the
face of the said seating with a chequered surface.
Upon this said washer presses the end of the plug or valve which has a passage
running from its centre to a point eccentric therewith on the face, the distance
from the centre being the same as that of the inlet passage in the seating.
The plug or valve is kept down upon the seating by means of a cap or nut
preferably screwed into the body of the tap, the face of the cap or nut bearing
upon a shoulder formed upon the stem of the plug or valve.
When the requisite amount of pressure has been applied upon the top of the
shoulder of the plug or valve the said cap or nut may be prevented from turning
by means of a lock nut or other equivalent locking device.
In cases where my improved tap is used for filling vessels from which the
superfluous air or gases have to be relieved or snifted, I provide a further passage
upon the flat seating at a point preferably at right angles to the inlet
passage.
This passage is situated at the same radial distance as the others and communicates
with the atmosphere.
The operation of my tap is as follows when the plug or valve is turned into a
position so that the eccentric passage in the plug is over the eccentric or inlet
passage in the seating, communication exist between the inlet and outlet passage to
the vessel and the liquid can pass, should it now be necessary to relieve any
accumulation of air or gas consequent upon the vessel being filled, the plug or
valve is turned about its axis until the eccentric passage in the plug is over the
passage leading to the atmosphere in the seating, through which the air or gas
escapes from the vessel.
My taps may be used when a number of branches or pipes are to be served from
one source, one at a time.
30 1
1 1000
FELL & WILDING,
1, Queen Victoria Street, E.C., Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improvement in Taps.
1, FREDERICK WALTER, of 47, Hassett Road, Homerton, in the County of
Middlesex, Mechanical Draughtsman, do hereby declare the nature of this inven
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
My invention relates to taps for the withdrawal of liquid or gases, and more
especially to those used with gaseous liquids under high pressure; where the operation
of snifting is necessary in order to relieve the superfluous air or gas in the vessel
being filled, it being therefore particularly applicable to bar fountains for the
discharge of acrated liquid from a main reservoir.
My invention consists in the construction and arrangement of parts of such a
tap so as to render it perfectly tight between the inlet and outlet orifices special
means being provided for taking up wear in a simple manner, no gland being
required for the spindle or stem of the tap as the pressure is not in communication
therewith, the tap can also be cheaply manufactured and quickly and cheaply
repaired.
Further any convenient number of branches or pipes can be served from one
source one at a time through the medium of my improved tap.
In order that my invention may be the better understood I now proceed to
describe the same in relation to the drawings hereunto annexed, reference being
..had to the letters and figures marked thereon. Like letters refer to like parts
in the various figures.
Figure 1 is a sectional view of one form of tap according to my invention.
Figure 2 is an end view of the same.
Figure 3 is a plan of the face of the valve.
Figure 4 is a plan of the valve seating.
Figure 5 is a plan of my tap arranged for the withdrawal of aërated liquid from
a bar fountain.
Figure 6 is a view of the face of the valve for the same.
In reference to Figure 1 in which I show one form of tap according to
my invention I arrange in the body of the tap A, a flat seating B, and a
passage C, leading from the centre of the seating B, to the neck or.
shoulder D, containing the outlet passage E. I arrange another passage. "F
upon the said seating B communicating with the inlet passage 'G of the tap
situated eccentric to the seating and preferably about half way between the
centre or outlet passage C and the outside of the seating' B. Upon the seating B
I provide a washer H of leather, vulcanite, or other suitable material having orifices
corresponding to the passages in the seating. This washer H may be prevented
from turning upon the seating B by forming the 'face of the said seating-with a
checkered surface, or preferably by means of a screw h (Figure 4).
Upon the said, washer H presses the end of a plug or valve' I which is provided
with a passage running from its centre to a point eccentric therewith on
its face. The distance of this passage from the centre being. the same as that of
the inlet passage G, in the scating B.
The plug or valve I, kept down upon the seating B, by means of a cap or
mut K, preferably screwed into the body of the tap A.
The face of this cap or nut K, bears upon a shoulder formed upon, the stem of
the plug or valye I.
When the requisite amount of downward pressure' has been applied upon the
upper face of the plug or valve I by the said cap or nut K"being screwed down
upon the same the cap or mut may be prevented from turning by means of a locking
nut L, or other equivalent locking device. In cases where my improved tap is used
for filling vessels from which superfluous air or, gases have to be relieved or snifted

page_text: I provide a further passage M upon the flat seating at a point preferably at right
angles to the inlet passage.
This passage M is situated at the same radial distance as the other and com-.
municates with the atmosphere,.or by means of a pipe to any convenient.receptacle
as may be desired. The operation of my tap is as follows
When the plug or valve 1 is turned into a position so that the eccentric,passage. i
in the plug is over the eccentric or inlet passage F in the seating communication
exits between the inlet and outlet passage to the vessel by passing up the passage F,
round the passage i in the plug, and down through the centre passage C, to the
outlet passage E. When the plug of the tap is turned in any direction so that
the passage i is not in communication with any orifices concentrically arranged the
tap is shut off.
In cases where snifting is necessary, that is means have to be provided to relieve
any accumulation of air or gas consequent upon the vessel being filled the plug or
valve I is turned about its axis until the eccentric passage i in the plug is over the
passage M in the seating leading to the atmosphere through which the accumulated
air or gas escapes from the vessel.
It is obvious that this arrangement of tap permits of a number of branches being
controlled by one tap, from one source, one at a time by arranging any given
number of passages in the seating so that by turning the plug or valve so that its
passage i is over any particular passage in the seating communication exists between
the supply and delivery.
In Figure 5 I show a modified form of tap according to my invention which
is especially applicable to control the drawing off of aërated liquids from a main
source of supply especially in the case of apparatus known as bar fountains. The
particular object which is obtained by this tap is that the operation of filling an
intermediate chamber, snifting the accumulated pressure, and delivering the charge
from the intermediate chamber by means of a spout into an open vessel is effected
by simply revolving the valve through a quarter of the revolution each part of the
process being effected during the revolution of the said valve. This, I effect by
providing the seating with two extra passages O & P arranged concentrically in
the same manner as the others, O communicating to the atmosphere or waste vessel
and to the intermediate vessel.
G is the passage leading from the store vessel and the centre passage C com-
municating with the intermediate vessel.
The face of the valve or plug has a segmental circular recess R cut in it as shown
in Figure 6.
By the particular disposition of the passage in combination with the seg-
mental recess R the following cycle of operations is effected during the turning of
the plug I through a quarter of the revolution.
Supposing that the valve is so situated that the segmental recess R in the plug
is placed over the orifices P and G communication is made between the store vessel
and the intermediate vessel in order to fill the latter.
When this has been effected by revolving the valve through a quarter of a revo-
lution from left to right the segmental recess R first places the orifices O and P in
communication and shuts G thus allowing the back pressure in the intermediate
vessel to escape into the atmosphere, or into the waste vessel.
At the end of the movement, that is to say when the quarter of the revolution
has been completed the passage i in the plug is situated so as to make com-
munication between the passage E and E¹ by which the liquid is withdrawn from
the intermediate vessel.
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 :-
1st. The construction of a tap for liquids or gases consisting of a plug having a
passage from its centre to an orifice situated on its face at a distance from the

page_text: centre in combination with a facial seating having a centre passage and one or more
passages concentrically arranged at the same radial distance as the passage in the
said plug.
2nd. In combination with such a tap one or more circular segmental recesses on
the face of the plug of the said tap to permit of communication between two or
more of the passages arranged concentrically around the centre of the seating, sub-
stantially as described.
3rd. The construction and arrangement of a tap substantially as described and
illustrated in Figures 1, 2, 3, 4, 5 and 6.
Dated this 23rd day of January 1891
FELL & WILDING,
1, Queen Victoria Street, E.C., Agents for the Applicant.