Improvements in or connected with the Ordinary (Screw-down) Tap.
Year: 1898

page_text: Date of Application, 26th Mar., 1898
Complete Specification Left, 23rd May, 1898-Accepted, 25th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Ordinary (Screw-down) Tap.
We, SEPTIMUS ALEXANDER PARKES, of "Holbrook," Park Road, Surbiton,
Surrey, and ORLANDO HENRY WAGNER, of S, John Street, Adelphi, Strand, London,
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention relates to a novel construction of tap, chiefly for domestic pur-
poses, whether for hot or cold water supply.
For the purpose of this invention, the tap has the exterior appearance of an
ordinary screw down tap, but a clear passage is made through from the lower to
the upper water chambers, which passage is provided with a nicely fitting tube
closed at both ends and having holes near the upper and lower ends close to which
ordinary washer valves can be fitted to bear upon seatings of the core both
above and below, if so desired.
"
**
"
The tube has preferably a flange at its lower end to carry its washer and can be
inserted into the core from the bottom of the tap's body which is closeable by
a screw or other plug.
The upper end of the tube is provided with the usual "stump hole" for the
bottom stem of the loose upper valve to enter, and its upper end has its stem to
fit a hole in the screw down stock, which passes upwardly through the usual gland
cap and packing.
"
"
In action, the screwing down of the stock by its top crutch forces the tube down
to lower the upper holes of the tube into the core and so close passages, but on
reversing the crutch, the upper valve rises from its seat and may either draw the
tube upwardly, or it will rise by pressure of water under its bottom flange to
uncover the top holes for the free flow of water, the bottom holes of the tube never
being covered, except when a fresh top valve is required at which time the tube
can be raised above its normal height and the lower washer brought up against
its seating to prevent escape.
Improvements in or connected with the Ordinary (Screw-down) Tap.
We, SEPTIMUS ALEXANDER PARKES, of "Holbrook," Park Road, Surbiton,
Surrey, and ORLANDO HENRY WAGNER, of 8, John Street, Adelphi, Strand, London,
[Price 8d.

page_text: Engineers, 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 relates to a novel construction of tap, chiefly for domestic pur-
poses, whether for hot or cold water supply by which the tap can be taken to pieces
and the washer renewed without taking the tap off the pipe or cutting off the
water supply.
:
For the purpose of this invention, the tap has the exterior appearance of an
ordinary screw down tap, but a clear passage is made through from the lower to
the upper water chambers, which passage is provided with a nicely fitting tube
closed at both ends, or it may have one open end, and holes' near the upper and
lower parts close to which an ordinary washer valve can be fitted to bear upon a
seating of the barrel partition or
core.".
"
The tube has a flange at its lower end which may carry a washer and can be
inserted into the " core from the bottom of the tap's body which is closable by a
screw or other plug.
Our invention will be clearly understood. by reference to the annexed drawings.
Figure 1 sectional elevation of a domestic or like water tap with the valve open
for the passage of water, as indicated by the arrows.
Figure 2 a similar elevation with the tube slightly modified and the valve
closed.
Figure 3 part sectional elevation of a tap barrel with the tube before referred
to slightly modified.
33
A, body or barrel. B, water inlet end. C, water outlet, here shown as a screw
down bib cock, but the invention is applicable to all forms of cocks, such as stop
cocks for either high or low pressures in which the screw down system is available.
D, the ordinary screw down stem controlled by the handle or crutch E, a portion
of this stem is in a packed socket G, and its threaded portion H with right or a left
hand screw thread operates in the ferrule I in a manner well known, the lower
portion of the stem being hollow for the stump or stalk J of the loose valve
dise K to ride up and down in and be free for the self adjustment of the washer L
when lowered onto the seating M. Nis the partition between the upper chamber l'
and the lower chamber Q, and on both faces of which, seatings are formed, one
seating being for the washer of the valve dise K to bear on, and one for the
washer or flange of the valve disc R of a short tube S to bear against when said
tube is forced up
66
the core or partition N by the inrush of water when the tap
is opened for flow, at which time by the pressure of water under the tube valve
disc R, the two slots or perforations T, T, with the tubular portion of $ constitute
the passage from B to C, the mid-travel of the tube S being sufficient for the full
flow, but which is capable of being reduced by raising the valve K by continuing
the turning of the crutch E, or by partially unscrewing the ferrule I after the
screw down stem D has been screwed up as far as possible until the passage of
water is completely shut off by the valve R bearing against the lower seating of
the "core" N, this being due to the pressure of water acting under the valve R,
and from the position of the lower slot or port T of the tube S being within the
core and so shut off. The ferrule I can now be completely unscrewed, and the
loose valve disc K taken out of the tap, and its washer L renewed without any
escape of water taking place, the disc K being then replaced, and the tap put
together again..
""
If the tube S be well fitted, the screw valve K, against which the
upper end of the tube S is always in contact, need only partially
be lowered, so that the upper port T of the tube S will be within the " core and
the passage closed, so that it is not absolutely essential that the valve K should
be on its seating, and which by the present system is so detrimental to the
efficiency of a water tap, the valve washer being often cut by unnecessary force
used in shutting down the valve, and after a short time causing a constant drip

page_text: and leakage, whereas by this invention a partial closing of the valve K will pre
vent drip, or a partial opening have the same effect.
U is a bottom plug or cap screwable into the barrel A, the removal of which
cap will enable the tube and its valve R to be inserted, and we prefer that said
tube S be guided by its stalk riding within the body of the plug or cap.
"
In action, the screwing down of the stock D by its top crutch E forces the
tube S down to lower the upper hole T of the tube S into the
core and so close passages, but on reversing the crutch E, the upper
valve K rises from its seat for the tube to rise by pressure of water under
its bottom flange R to uncover the top holes for the free flow of water, the bottom
holes of the tube never being covered, except when a fresh top valve, or ton valve
washer is required, at which time the tube can be raised above its normal height,
as before explained and described, and the lower washer be then brought up
against its seating to prevent escape.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what
we claim is:-
1. The herein before described improvements in or connected with screw down
taps consisting of a tube with slots and a valve and having free operation to close
the passage through the core by pressure of water unless controlled by the ordinary
valve.
2. Providing a screw down tap with a double seating core for the ordinary valve
to be forced on and for a supplementary valve of a tube to be pressed against, said
supplementary valve being portion of a slotted tube having free play in the core
and capable of regulation for opening the passage more or less, yet perfectly free
to entirely close the passage when uncontrolled by the ordinary screw appliances,
as set forth, the construction or arrangement being that substantially as represented
on the annexed drawings.
1000
І це кого uay 01 may 1000.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Septimus Alexander Parkes and
Orlando Henry Wagner.