Year: 1886

page_text: Date of Application, 23rd Nov., 1886
Complete Left, 23rd Aug., 1887
Complete Accepted, 28th Oct., 1887
I WILLIAM BRADLEY of 18 Collegiate Crescent Broomhall Park Sheffield in the
County of York Gentleman do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to render taps more efficient in their action, and also
to obviate the wear and tear of the leather or other material used for the purpose of
making them watertight, and to provide means whereby the flow of water can be
automatically stopped when the valve is removed for repairs.
In carrying out my invention I construct a guide or guides whereby the valve of a
tap is prevented from turning round and can only move in a straight line when
opening and closing-so that its face is always kept in the same relation to the seat of
the valve.
I also provide a stop, or stops, for the purpose of preventing undue pressure being
placed upon the leather or other material used for making the valve joint watertight-
thus protecting such material from being injuriously compressed and thereby destroyed,
or rendered useless.
My invention also consists of a second valve, which has its seat against the under-
side of the ordinary valve seat, and has a guide pin and a guide on that side of it
against which the water flows and another guide pin on the opposite side thereto-
or on that side which comes into contact with the valve seat-this second pin is so
constructed that when the first or ordinary valve is taken out for repairs then this
second valve is brought into use by being forced against the under or opposite side of
the valve seat, to that against which the first or ordinary valve acts-thereby preventing
the flow of water until the first or ordinary valve is replaced.
Dated 20th day of December 1886.

page_text: I WILLIAM BRADLEY, of 18 Collegiate Crescent, Broomhall Park, Sheffield in the
County of York Gentleman 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 this invention is to render Taps more efficient in their action, and also
to prevent the wear and tear of the leather or other material used as washers or valve
faces for the purpose of making the taps watertight, and also to provide means
whereby the flow of water can be automatically stopped when the valve is removed
for repairs.
The accompanying sheet of drawings illustrates my invention.
Fig. 1, is a sectional elevation of a water tap, constructed according to my
invention.
Fig. 2, is a plan of the top of the part showing the waterway.
In carrying my invention into practice as shown in the drawings annexed, I make
the body of the tap in three principal parts, the top piece A, the middle B and the
lower piece C. I preferably use a screwdown handle D, to close down the valve E,
and I construct the said valve with one or more guides F, by which it is prevented
turning round upon its axis, and is only allowed to move in a straight line, to and
from the valve seat G, when being opened or closed; thus the face of the valve and its
seat always retain the same relative position, and are not subjected to injurious friction
from any rotary pressure.
I recess the valve E, and insert a facing of leather H, or other suitable material, or
combination of materials, projecting from the recess so as to bear against the seating G,
when forced down by the screw handle D.
I find in practice that the following construction or combination gives a very good
result, first a washer or layer of india rubber second, a thin metal plate, and third,
leather to form the face; the intermediate plate of metal or other hard material,
prevents unequal pressure being placed upon the rubber or other elastic material.
Upon the said valve, and preferably upon the metallic portion of its face, I construct
one or more stops, a simple and effective method being to utilise the entire annular
face marked I by making it of a suitable depth, so that it will come in contact with
the face of the seat, before the leather H (or other elastic material) can be injuriously
compressed.
To automatically stop or shut off the flow of water when the valve is required to be
taken out for examination or repairs, I use a second or auxiliary valve J, which has its
seat K, on the underside of the ordinary seat G. It consists of a spindle with a fixed
collar, on one or both sides of which, I place a washer of leather or other suitable
elastic substance L, L³, the top part of the spindle passes through the waterway in
the valve seat, and fits in a corresponding hole in the centre of the valve, the lower

page_text: end of the spindle passes through a guide or crossbar M, in the bottom part C, the
construction of the crossbar and the waterways N, N, is shown in Fig. 2.
It will be seen from the drawing, that the construction of this Auxiliary valve is
such, that when the ordinary valve is taken out, the force of the water causes it to
close against its face K, and effectually prevents the passage or escape of water
through the valve waterway, until the ordinary valve E, is replaced and screwed
partially down.
When a washer L is used upon the auxiliary valve J, it may be so arranged that it
will close the waterway N (Fig. 2.) at the same time that the ordinary valve E is
brought into contact with its seating, and thus form a double security against
leakage.
Having now particularly described and ascertained the nature of my invention and
in what manner the same is to be performed, I wish it to be understood that I do not
confine myself to the precise configuration of the Tap shown for the purpose of
illustration, as for example the bib or spout may be placed as indicated by the dotted
lines, neither do I bind myself to use all the various parts in combination but I declare
that what I claim is :-
1st The general construction and combination of the various parts composing a
Tap, as hereinbefore described and illustrated.
2 In Taps, constructing the valve with one or more stops for the purpose of pre-
venting injurious pressure upon the elastic face, substantially as described.
3-In Taps, the combination with a valve having one or more stops, of a suitable
guide or guides to prevent the valve from turning round, for the purpose specified.
4-In Taps, the combination with the ordinary valve, of an auxiliary valve (such
as J,) for the purpose specified and substantially as described and shown.
5-In Taps, the construction of a valve, having a projecting face of leather or like
material, a backing of indiarubber or other elastic material, divided or separated by a
plate or washer of metal or like hard material for the purpose specified.
Dated the 22nd day of August 1887.
ROBT. F. DRURY,
Agent for the Applicant.