Self-closing Taps or Valves.
Year: 1893

page_text: Date of Application, 28th Sept., 1893
Complete Specification Left; 23rd Feb., 1894-Accepted, 14th Apr., 1894
PROVISIONAL SPECIFICATION.
Self-closing Taps or Valves.
JAMES JUDGE Dene Crescent Walker in the County of Northumberland
Engineer do hereby declare the nature of this invention to be as follows :-
This invention relates to certain improvments in self closing taps or valves the.
object being to provide a self closing tap or valve that will be capable of use for
pressure service; will be certain in action and will close without concussion the
shape of the tap or the description of the valve used in the tap to stop the flow of
liquid may be varied but the reduction of the concussion consequent upon the
action of closing is effected as follows, At the front of the tap or other part of the
tap or valve as convenient or desirable, I place a coarse pitched screw or spindle
which is connected with the closing tap or valve.
On the aforesaid screw or spindle I place a lever for opening and closing the
valve by lifting the lever to any angle up to a half a turn it opens the valve against
the pressure and allows the liquid to flow, when the lever is released it falls
automatically in consequence of the pressure acting on the valve and the weight of
the lever and the coarse pitched screw which has been moved less than half a turn
prevents concussion.
I can also open the valve or tap by means of an eccentric or cam with a small
lever which allows the valve to close gently when released, or I can accomplish
the above result by means of a hollow spindle with a piston on the end which is
larger than the valve opening by means of a rod through the hollow spindle with
a small valve on the end which when pushed down opens the orafice on the end of
the aforesaid spindle and allows the water to go up the inside of the spindle (to
the piston) which is larger than the valve and thus open it automatically with
its own pressure when released it closes without concussion.
Date 27th day Sontember 1892
COMPLETE SPECIFICATION.
Self-closing Taps or Valves.
I, JAMES JUDGE of Dean Crescent, Walker in the County of Northumberland,
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 :-
This invention relates to certain improvements in self-closing taps or valves
the object being to produce a self-closing tap or valve that will be capable of use
for pressure service will be certain in action and will close without concussion.
The shape of the tap or the description of the valve used in the tap to stop the
flow of liquid may be varied but the reduction of the concussion consequent upon
the action of the closing is effected as follows.

page_text: At the front of the tap or valve I place a coarse pitched screw or spindle which is
connected with the closing of the tap or valve; on the aforesaid screw or spindle
I place a lever or other suitable arrangement for opening and closing the valve;
by lifting the lever to any angle up, to half a turn it opens the valve against the
pressure and allows the liquid to flow; when the lever is relieved it falls
automatically and closes aided by the pressure acting on the valve; the weight of
the lever and the coarse pitched screw which has been moved less than half a turn
prevents concussion.
I will fully describe this arrangement with reference to the accompanying
drawings in which Figure 1 shows a sectional elevation with the lever and valve
in the open position Figure 2 being an end view of the same and in the following
description like marks of, reference designate like parts.
Referring to the drawings it will be observed that the tap is constructed in two
main parts A and B the screwed connection at the joint J giving access. to, the
valve and interior parts. A boss C is formed at the front of the tap or valve. in
which is arranged a coarse pitched, screw, or spindle S. on, which is mounted
a lever L which is of sufficient weight to close the valve as hereinafter
described.
The valve, itself V may be of flexible vulcanised or hard rubber or brass or
other suitable material according as it is intended for use with hot, or cold water
and it may be strung or threaded onto the spindle as shown.
A guide-piece E. secured. to the extremity of the spindle remote from the delivery
nozzle of the tap serves to preserve the rectilineal motion of the valve and spindle.
The lever L is designed to, vibrate through an angle of about 120 degrees at
both extremities of which range stops T T are formed on the tap as shown most
clearly in Figure 2.
The action is as follows:-To open the tap lever L is raised to position shown in
Figures 1 and 2, and this through the action of the coarse pitched screw. (which
may be right or left handed as desired) pushes valve V off its seat V and allows
water to flow past valve and out at the orifice. As long as the water is required
to flow the lever must be held up and as soon as it is desired to shut, the valve the
release of the weighted lever causes or allows it to fall (by gravity),
automatically close the valve.
and
The coarse pitched screw prevents the pressure of the water against the valve
closing it too rapidly whereby concussion is reduced..
To prevent animal or other solid matter passing through the tap or valve, a
perforated plate or strainer M may be situated as shown or the area of the inlet
end may be otherwise reduced for this purpose.
Alternatively the valve or tap may be opened by means of an eccentric or cam
as shown in Figures 3 and 4 which show end and side sectional views of the
arrangement.
In these figures a cam K is shown mounted or formed on a spindle K' of
weighted lever L in a chamber K' formed on the tap: the valve spindle S and
valve will thus be pushed back by the cam on.holding up lever L to open the
valve the pressure of water, acting to close the valve automatically when the lever
is released and falls by gravity as above described.
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 :-
1. In a self-closing tap arranging the combined lever, and spindle on which the
valve is secured with a coarse pitched thread or screw in such a manner that the
raising of the lever through a certain angle simultaneously rotates and moves
the valve off its seat the closing of the valve being automatically effected on the
release of the lever substantially as herein set forth, with reference to Figures 1
and 2.
2. In a self-closing tap the combination with lever L of spindle K' and cam K

page_text: arranged in a chamber K2 the several parts being constructed and combined so as
to cause actuation of the valve substantially in manner and for the purpose set
forth with reference to Figures 3 and 4.
Dated this 20th day of February 1894.
A. CRAWHALL CHAPMAN,
3, St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.