IMPROVEMENTS IN HIGH PRESSURE WATER METERS AND THEIR CONNECTIONS
Year: 1884

page_text: I WILLIAM NEWTON Cox of N° 4 Wentworth Road in the parish of Horfield
in the county of Gloucester Engineer do hereby declare the nature of my invention
for IMPROVEMENTS IN HIGH PRESSURE WATER METERS AND THEIR CONNECTIONS
to be as follows:-
My invention relates to any kind of Water Meters used for measuring the water
supplied under pressure, but more especially to those used for domestic supply.
To enable me to use a meter of such construction which is not likely to resist
heavy pressures, I provide that in every case, the outlet of the meter is larger than
its inlet. On the outlet and of equal or larger size I fix an open nozzle or pipe
from which the water may at all times be quite free to escape from the meter.
Conveniently near the said nozzle, I fix a stop cock to the water service or supply
pipe, which stop cock I connect with the inlet of the Water Meter, and by opening
or closing of which stop cock the users may obtain their required supply of water
through the said meter. High Pressure Water Meters as hitherto constructed and
supplied with a cock or valve on their outlets are subjected to the full pressure of
the water supply, but by my invention a means is provided for the water at all
times to escape as rapidly as it enters the meter, and therefore the meter needs not
be so strong in its parts, nor be of similar construction, to one which was required
to resist heavy pressures.

page_text: I WILLIAM NEWTON Cox of N° 4 Wentworth Road in the parish of Horfield,
in the county of Gloucester, engineer, do hereby declare the nature of my invention
for IMPROVEMENTS IN HIGH PRESSURE WATER METERS AND THEIR CONNECTIONS
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 "high pressure water meters, by which term I mean,
any meter which is required to measure the water from a supply pipe in which the
pressure exceeds about five pounds per square inch, an amount far less than that
at which water is generally supplied from street mains.
My invention may be applied to any ordinary type of water meter, of which
there is a very great variety, but is more especially intended to be used in
connection with some special type of water meter for measuring the water
supplied to small consumers for domestic purposes.
My invention provides for an improved arrangement of the inlet to and the
outlet from the outer case of a water meter by which practically no pressure
whatever can at any time be within the said meter case, so that not only may the
case be of much lighter construction but several types of water meters may be used
in such cases which it would not be possible to use unless in a meter case where
the pressure within the said case, is always about the same as the atmospheric
pressure without it.
'
My invention will be well understood by reference to the accompanying
drawings in which Figure 1 is a vertical section, Figure 2 is a plan, and Figure 3
a side view of the meter case and its connections. As my invention refers solely
to improvements by which water meters may be relieved of the pressure within
and around their working parts, but does not refer to the working parts themselves,
I neither draw nor describe any special form of such working parts.
The letters used to distinguish the several parts of my invention are the same in
each of the figures shown on the sheet of drawings. A is a pipe connected with
the main water supply B is a stop cock or valve. C is the inlet pipe to the
meter case D.-E is a plug which when opened allows the water to rise in the
interior pipe F, and to flow thence into the working parts of the meter.-G is a
hollow plug (with an elongated top), fitting accurately into the outlet H.-Both
inlet and outlet plugs are attached by jointed connections to the lever J.
The outlet washer H is furnished with a pipe K terminating with a nozzle L,
which nozzle may be conveniently placed near the stop cock B, or the two may be
closely connected with each other.
The action of my invention is as follows:when the stop cock B is opened it
allows of a supply of water under pressure to flow through it. This causes the
inlet plug or valve to open upwards and lift the lever J. This lever causes the
outlet plug G also to lift upwards and allow of the escape of the water from within
the meter case. The interior pipe F connected with the inlet plug E, allows the
water supply to flow at or near the top of any convenient form of meter, fixed
within the meter case.-When the meter has measured the water so supplied, and
discharged it at the same or a lower level, it is free to pass away by the outlet H,
either at the underpart of the plug G when it is raised out of its seating, or from
its upper part when it is lowered into its seating.
In every case I make the interior of the outlet pipe K and its connections, of a
larger area than the inlet pipe C, so that any in flow of water into the meter,

page_text: shall be free to escape as rapidly as it enters.-In practice I make the area of the
outlet about double of the inlet, and this provides against any ordinary accident in
the working of the plugs, or in the working parts of the meter.
I do not confine myself to any precise size or shape of meter case nor to any
exact proportions between the area of the inlet and the outlet; nor to the exact
forms of the plugs and their connections, as these require to be made to suit the
particular form of measuring apparatus which may be fixed within the meter
case. Neither do I necessarily use any plugs at all, on either inlet or outlet, as
with some forms of measuring apparatus these may be dispensed with; but
"having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
(1) The arrangement of the inlet and outlet of the outer case of a water meter
in such manner that the outlet always remains open, during the time the inlet is
open, substantially as herein drawn and described.
(2) The arrangement by which the outlet practically remains open at all times.
(3) The making of the outlet pipe and its connections of a larger area than the
inlet, for the purpose of neutralizing the initial pressure of the water, within a
meter case.
(4) The combination of these arrangements of parts (either in its completed
form or without inlet and outlet plugs) in conjunction with any other apparatus for
the purpose of measuring water supplied under pressure.
Dated this 20th day of Santambing 1001.