Improvements in Fluid Meters.
Year: 1890

page_text: Date of Application, 18th Nov., 1890
Complete Specification Left, 17th Sept., 1891-Accepted, 17th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Fluid Meters.
We, HENRY HERBERT SPORTON and ERNEST WHITE, both of Glen Works,
Chase Side, Enfield, in the County of Middlesex, Engineers, do hereby declare the
nature of this invention to be as follows
This invention relates to fluid meters of the kind described in the Specification
of Letters Patent No. 14264 dated November 5, 1886 and it comprises the
improvements hereinafter described.
According to our invention the body of our meter which is advantageously
formed in one piece has the measuring cylinders arranged at opposite ends thereof,
a space being left between them. The pistons instead of being attached to a single
rod as described in the said Specification are attached to separate rods working in
conjunction with levers for operating the valves regulating the ingress and egress
of fluid into and from the cylinders. In practice one piston is provided with a
central rod and the other piston with two side rods in such a manner that they do
not interfere with one another when in operation. The end of each rod in con-
nection with one of the valve levers is slotted so that the valve is only operated
when the pistons have nearly completed their movement in either direction.
The inlet and outlet ports are preferably formed in the top of each working
cylinder and the valves which are cylindrical work in boxes having suitable Hanges
for connecting them to the tops of the cylinders over the ports, the said valve
boxes being provided with openings corresponding with the ports in the cylinders.
The valves we employ are preferably what are known as single-ported "valves
and constructed of vulcanite.
The valves are so arranged in connection with the cylinders that the valve of
one cylinder is controlled by the piston of the other cylinder.
The body of the meter is provided with a cover for enclosing the valves and the
chamber between the cylinders and the said cover has formed upon it the box in
which the registering mechanism is placed. This registering mechanism is pre-
ferably operated by a pin on one of the valve levers hereinbefore referred to.
We provide our meter with four drain screws, namely, one behind each piston
and one in each end cover so that the meter if warehoused may be drained thereby
preventing it from being damaged in frosty weather.
Dated the 18th day of November 1890.
G. F. REDFEÉRN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Fluid Meters.
We, HENRY HERBERT SPORTON, and ERNEST WHITE, both of Glen Works,
Chase Side, Enfield; in the County of Middlesex, 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 fluid meters of the kind described in the Specification
of Letters Patent No. 14264 dated November 5' 1886 and it comprises the
improvements héréinafter described.
According to our invention the body of our meter, which is advantageously
formed in one piece, has the measuring cylinders arranged at opposite ends thereof,
a space being left between them. The pistons, instead of being attached to a

page_text: single rod as described in the said Specification, are attached to separate rods
working in conjunction with levers for operating the valves regulating the ingress
and egress of fluid into and from the cylinders. In practice one piston is provided
with a central rod and the other piston with two side rods in such a manner that
they do not interfere with one another when in operation. The end of each rod in
connection with one of the valve levers is slotted so that each valve is only
operated when the piston connected therewith has nearly completed its movement
in either direction.
The inlet and outlet ports are preferably formed in the top of each working
cylinder and the valves, which are cylindrical, work in boxes having suitable
flanges for connecting them to the tops of the cylinders over the ports, the said
valve boxes being provided with openings corresponding with the ports in the
cylinders.
The valves we employ are preferably what are known as "single ported" valves
and are advantageously constructed of vulcanite.
The valves are so arranged in connection with the cylinders that the valve of one
cylinder is controlled by the piston of the other cylinder.
The body of the meter is provided with a cover for enclosing the valves and the
chamber between the cylinders and the said cover has formed upon it the box in
which the registering mechanism is placed. This registering mechanism is pre-
ferably operated by a pin on one of the valve levers hereinbefore referred to.
We provide our meter with four drain screws, namely, one behind each piston
and one in each end cover, so that the meter, if warehoused, may be drained,
thereby preventing it from being damaged in frosty weather.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawings, in which :—
Figure is a longitudinal vertical central section of a meter constructed
according to our invention; and,
Figure 2 is a longitudinal horizontal section:
Figure 3 is a section on the lineæ æ, Figure 1; and,
Figure 4 is a section on the line y y, Figure 1.
a indicates the body of the meter, b,
the cylinders formed at the two ends
thereof, and c the space between the said cylinders. d, are the pistons moving
in the cylinders b, bi, the former of which provided with a single rod e, whilst the
latter is provided with two rods e, e', as shewn most clearly in Figure 2.
fg, indicate the ports of the cylinder b, and f, g, h¹ the ports of the
cylinder b'.
, are the cylindrical valves for controlling the ingress and egress of the water
through the ports f, g, h and f¹, g', h¹ respectively, and j, j are the boxes in which
the said valves slide, the said boxes having flanges for securing them to the meter,
as shown most clearly in Figure 4.
is the lever by means of which the valve of the cylinder 6' is operated, the
said lever being pivotted to the bottom of the body of the meter in the space cat
and passing through a slot m in the piston rode; the upper end of the said lever k
is connected by links n, n to the rod of the valve . The slot m in the rod e is of
such a length that, on the outward movement of the piston d, the said lever / will
remain stationary during the greater part of the stroke, but will, when the said
piston has reached nearly the end of its inner stroke, cause the lever to operate the
valve i¹. In the same way on the return or outward stroke of the piston d, the
lever will not be reversed until the said piston has nearly reached the end of such
outward stroke.
o, o are the levers by means of which the valve i of the cylinder 6 is operated, the
said levers being pivotted at p p and connected at one end by links q, q to the rod
of the said valve i. The other ends of the said levers o enter slots r, r in the
rods e, e, as shewn most clearly in Figure 2, so that the said valve i will be
operated by the reciprocations of the piston d¹ in the same manner as the valve " is
operated by the reciprocations of the piston d.

page_text: s is a pin or finger formed upon the upper extremity of the lever k and serving to
operate the spindle t connected with suitable registering mechanism.
is the cover enclosing the valve mechanism and having upon it a box v for
containing the registering mechanism, and 10, w, w³, w' are the drain screws pro-
vided in the bottom and ends of the cylinder portions of the meter for drawing off
any water which may be therein.
a, a are respectively the openings for the inlet and discharge of the water.
The operation of the apparatus hereinbefore described is as follows -Assume
the parts to be in the position shewn in Figure 1, that is to say, the piston d' nearly
at the end of its inner stroke and just commencing to move the valve i to uncover
the port of the cylinder band to place the ports g, h thereof in communication:
water now flows through the port and moves the piston d inwards, the water
behind the said piston being forced through the ports g, h to the discharge
opening a*. When the piston d has reached nearly the extremity of its stroke it
acts upon the lever k to move the valve to connect the port g with the supply
and to place the ports f, in communication. The piston is then moved
outwards and the water in front of the said piston is forced through the ports f³, h²
to the discharge opening a². By the time that the piston has reached the outer
end of its stroke its rods e', e' have, through the medium of the levers o, o, moved
the valve to place the ports f, hin communication and the port g in communication
with the supply, whereby the water flowing through the port g forces the piston. </
outwards causing the water in front thereof to pass through the ports, to the
discharge opening. By the time the piston has reached the outer end of its
stroke it has operated upon the lever k to move the valve to again place the
ports g, into communication and to open the port f¹ to the water supply, as
shewn in the drawings, whereby the water again forces the piston inwards
causing the water behind the said piston to pass through the ports g', ' to the
discharge opening. The operations hereinbefore described are then repeated.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:—
1. A water meter comprising two measuring cylinders and two valves for
controlling the ingress and egress of the water into and from the said cylinders,
the valve of one cylinder being controlled by the piston of the other cylinder,
substantially in the manner described.
2. A water meter constructed substantially as described with two cylinders cast
in one piece with the body of the meter, substantially as described.
3. The improvements in water meters hereinbefore described and illustrated in
the accompanying drawings.
Dated the 17th day of Santember 1801
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.