Year: 1888

page_text: Date of Application, 4th Apr., 1888
---Specification Accepted, 18th May, 1888
I PHILIP ARTHUR NEWTON of the Office for Patents, 6 Breams Buildings Chancery
Lane in the County of Middlesex, Patent Agent 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 principal object of this invention is so to construct water cocks as to obtain
simplicity and solidity, and to prevent completely the possibility of any shock in the
conduit pipes when the water is cut off, notwithstanding the water cock is self-closing,
and prompt in action.
In the accompanying drawing,
Fig. 1 is a front elevation of the water cock constructed according to this
invention.
Fig. 2 is a sectional side elevation, shewing the valve closed.
Fig. 3 is also a sectional side elevation, but showing the valve open.
A is the outer body or casing of the cock, made in one piece with the discharge or
draw-off pipe B.-C is the conduit pipe upon which the cock is screwed. D is a
cover screwed onto the upper part of the casing, so as to close it water-tight.
E indicates the valve pin with the valve cover e, to which is fastened the three-
winged valve guide F by means of a screw G, provided with a head 9. A hori-
zontal section of the valve guide is shown in dotted lines on the elevation Fig. 3.
In the valve cover is placed an india rubber washer m. This washer, when the
cock is shut off, rests upon a seat p, which is formed in the body of the cock. His
a blade fastened to the key-pin K, which, as shown in Figs. 1 & 2, is prolonged out-
side the draw off pipe, and carries the key handle L. The inner chamber of the cock
is divided into two compartments, by placing in the upper part of the water cock,
between the top piece D and the body A, a flexible diaphragm or partition of india
rubber, through which passes the upper part of the valve pin, being secured against
a shoulder s thereon by means of a nut r.
As indicated in Figs. 2 and 3, a hole h is made through the india rubber partition,

page_text: and a corresponding hole is drilled through the nut r, and through the shoulders on
the valve pin E. M is a spiral spring placed round the upper part of the valve pin,
by means of which the valve is continually kept down.
It will thus be evident, that when the key handle L is turned, the blade H will
press against the head g and lift the valve to its position, Fig. 3, and open for the
water supply. But if the handle is released, the spring M will force the valve down
against the seating p, and shut off the water.-In order, however, to avoid a shock
in the conduit pipe, the closing movement is not permitted to take place suddenly and
with force, but must, as will be seen, by the following, be done gradually, and with
a certain moderation.
When the water cock is at rest and closed, the inner compartment N, as well as
the top-piece, will be filled with water; then, when the handle L is turned, a part
of the water in the top-piece will be forced out through the aperture h. But if the
handle L is released, the spring M will, as above mentioned, act on the valve and
close it; then the water expelled through the aperture 7 by the opening movement,
must occupy a certain time again to refill the top piece D, and the rapidity with which
this refilling will take place is a standard for the rapidity with which the valve is
closed. By increasing or decreasing the size of the aperture h, it is possible to
regulate the closing of the valve. The valve and the valve spindle are guided as
well by the rubber washer 9 as by the valve-guide F.
In the cover D is placed a small screw 1.-When the water cock is to be secured to
the conduit pipe, this screw is loosened, so as to give escape to the air in the top
piece, which will be expelled by the water. When all air is out and replaced by water,
the screw is fastened air tight while the valve is closed; and the water cock will be ready
for use.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is :-
1. Constructing discharge cocks for conduit pipes with two compartments divided
by an elastic or yielding partition connected with the spindle of the discharge valve,
and formed with an opening therein, which opening allows of the free passage of
water from one compartment to the other, for the purpose of preventing the shock
hitherto experienced on the sudden closing of the valve.
2. In discharge cocks for conduit pipes, the combination of the valve pin, the valve
cover, and the valve-guide, firmly connected together, or forming one piece, and
guided from above by means of an india rubber diaphragm, substantially as herein
shewn and described.
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1 1
L+
1000