Year: 1886

page_text: Date of Application, 8th Mar., 1886
Complete Left, 8th Dec., 1886
Complete Accepted, 8th Mar., 1887.
I WALTER GEORGE KENT of 199 High Holborn in the County of Middlesex
Manufacturer do hereby declare the nature of this invention to be as follows :-
This invention relates to meters for measuring water and other liquids and especially
to meters such as described in the specification of a patent No. 10176 in the year 1884
where the measuring apparatus may conveniently be placed with its axis upright and
in which the inlet may be on the under side.
In order to intercept sand or other solids that may be carried by the water to be
measured I suspend or fix the measuring apparatus or cylinder within a casing by
preference cylindrical in such manner as to provide an annular space between the
inside of the casing and the outside of the measuring cylinder. The liquid is first
led into the annulus at right angles to the vertical axis of the casing and measuring
cylinder and in such manner as to cause about equal quantities to flow in either
direction around the annular space; the effect being to arrest or greatly reduce the
speed of the water and to cause it do descend all around into the space which
extends much below the bottom of the measuring chamber. In the centre of the
space the water ascends again to the measuring chamber whilst the solids gravitate to
the bottom of the outer casing or box.
The liquid may or may not be passed through a strainer before entering the
measuring cylinder.
The measuring cylinder is made with a flange around it at its upper end; this drops
into a corresponding recess in the upper end of the cylindrical casing and the cover
when applied secures it in place.
Thus without interfering with any of the service connections the measuring parts
may be at any time removed and replaced by others; it being simply necessary to
remove the cover lift out one set of parts and replace them by another similar set.
For the purpose of preventing oxidation the measuring cylinder and other parts or
some of them are coated by electrolysis with copper or other non-oxidisable metal or
alloy.

page_text: In some cases I prefer to line the outer casing at sides and bottom with sheet copper
or phosphor bronze or other non-oxidisable metal or alloy in such a manner as to leave
an hermetically sealed air space between the casing and the lining for the purpose of
not only preventing oxidation but to prevent the bursting by frost of the outer
casing.
For measuring hot water and sometimes in other cases the compound material
known by the name of Dermatine is used for the piston of the meter.
The measuring piston in the meters heretofore constructed has been made to
complete its partially rotary movement and then to commence its linear movement
from side to side; now I give such a form to the interior of the working cylinder that
the piston commences the latter movement before the former is complete, consequently
for a short period during each cycle the piston performs a compound movement partly
rotary around the axis and partly traversing from side to side.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: I, WALTER GEORGE KENT of 199 High Holborn in the County of Middlesex
Manufacturer 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 statenient :-
This invention relates to meters for measuring water and other liquids and especially
to meters such as described in the Specification of a Patent No. 10176 in the year 1884
where the measuring apparatus may conveniently be placed with its axis upright and
in which the inlet may be on the underside.
In order to intercept sand or other solids that may be carried by the water to be
measured I suspend or fix the measuring apparatus or cylinder within a casing by
preference cylindrical in such manner as to provide an annular space between the
inside of the casing and the outside of the measuring cylinder. The liquid is first
led into the annulus at right angles to the vertical axis of the casing and measuring
cylinder and in such manner as to cause about equal quantities to flow in either
direction around the annular space; the effect being to arrest or greatly reduce the
speed of the water and to cause it to descend all around into the space which extends
much below the bottom of the measuring chamber. In the centre of the space the
water ascends again to the measuring chamber whilst the solids gravitate to the
bottom of the outer casing or box.
The liquid may or may not be passed through a strainer before entering the
measuring cylinder.
The measuring cylinder is made with a flange around it at its upper end, this drops
into a corresponding recess in the upper end of the cylindrical casing and the cover
when applied secures it in place.
Thus without interfering with any of the service connections the measuring parts
may be at any time removed and replaced by others; it being simply necessary to
remove the cover, lift out one set of parts and replace them by another similar set.
For the purpose of preventing oxidation the measuring cylinder and other parts or
some of them are coated by electrolysis with copper or other non-oxidisable metal or
alloy or they may be coated with enamel.
In some cases I prefer to line the outer casing at sides and bottom with sheet copper
or phosphor bronze or other non-oxidisable metal or alloy in such a manner as to leave
an hermetically sealed air space between the casing and the lining for the purpose of
not only preventing oxidation but to prevent the bursting by frost of the outer
casing.
For measuring hot water and sometimes in other cases the compound material
known by the naine of Dermatine is used for the piston of the meter.
The measuring piston in the meters heretofore constructed has been made to com-
plete its partially rotary movement and then to cominence its linear movement from.

page_text: side to side; now I give such a form to the interior of the working cylinder that the
piston commences the latter movement before the former is complete, consequently
for a short period during each cycle the piston performs a compound movement partly
rotary around the axis and partly traversing from side to side.
In order that my said invention may be fully understood and readily carried into
effect I will proceed to describe the drawings hereunto annexed.
Figure 3 is a vertical section of the same with the piston and counter removed.
Figure 4 is a plan with the cover of the casing and the top plate of the body of the
meter removed.
Figure 5 is a plan of the top plate.
Figure 6 is a vertical section of the casing of a meter lined with sheet brass or other
non-oxidisable metal.
A is the lower cylindrical part of the casing of the meter; the inlet passage is at A¹
and the delivery passage at A2. Pipe connections are made with the passages A¹
and A2 in any convenient way. Bis the domed upper part of the casing its interior
capacity is placed in communication by a passage B3 with the delivery passage A of
the lower part of the casing. B2 is a plate on which the ordinary counter is built;
the indicating wheels or discs are on the upper side of the plate B, and are contained
in the cavity B³. This cavity is provided with a cover. One of the axes of the counting
train passes through a gland or water tight joint in the plate B².
C is the cylindrical body or measuring chamber of the meter; it is flanged and the
flange is received into a recess in the top of the part A so when the parts are in place
and the cover bolted on, the body of the meter forms a partition separating a lower
cavity in the part A from an upper cavity in the part B. The water entering at A¹
strikes upon the body C divides and passes around it, it then slowly descends around
the walls of the casing A and it then rises again through the perforated strainer AX.
These conditions are very favorable to the deposit of grit at the bottom of the casing
in preference to carrying it forward into the body of the meter. The water enters the
body of the meter by the holes C and C, the first of these opens into a chamber C³,
called the inlet chamber" and the latter into a chamber C, called the "working
chamber." The water also simultaneously passes into the working chamber by way
of the inlet chamber C³ the aperture C the passage C, and aperture C, for as hereto-
fore admission both above.and below the piston provided.
The water escapes from the working chamber into the cavity of the cover B directly
by the hole C, and also simultaneously by the lower aperture Co, the passage Co, the
opening in the bottom of a chamber C, called the "outlet chamber and by a
hole C, in the top of this chamber. Thus the exit also takes place as heretofore both
above and below the piston. D is the part called the piston, it is hollow and its end
abuts on the semi cylindrical wall of the working chamber. The piston is also
controlled by the block E fitted into the hollow or slot formed through the piston and.
by a central fixed post or stud F which passes through the block.
As seen in Figure 4 the piston has just terminated its radial movement and is about
to commence its rotary motion, it is lying against the wall of the inlet chamber C³,
and the water is able to penetrate by means of small ports provided in the piston from
tlie apertures C and C7 in between the piston and the wall. The pressure at which
the water is supplied causes rotary movement of the piston. As the piston travels
round one end is kept in contact with the curved wall of the working chamber by the.
other end abutting in the cavity at C. During the movement of the piston the
water in front of it is swept out of the working chamber through the apertures C
and C. This goes on until the one end of the piston in the last part of its rotary
movement comes to abut upon the incline C, and at the same time the other end of
the piston which is bevilled off at D¹escapes from the cavity C. The piston then for-

page_text: a short distance has a compound movement, it moves radially whilst it finishes its
travel around the stud or post F. The radial traverse of the piston is caused as before
by the entrance of water into the interior of the piston from the ports C² and C7, on
one side of the stud or post F whilst on the other side water is expelled from it by the
ports C and C but now the ports are well open to the interior of the piston before
the flow from them in the working chamber is checked.
The arrangement above described it will be observed admits of the entire body of
the meter being removed whenever necessary without breaking any of the service
connections. This having been done a new body can be inserted and the case again
closed. The arrangement also posseses other advantages to which attention has been
directed.
In Figure 6 G represents the sheet brass or other sheet metal lining; it is attached
to the casing A in a watertight manner leaving cavities G¹ between the lining and the
casing so that when the water expands on freezing the lining can yield. The other
parts of the meter I prefer to coat with copper by electrolysis to prevent oxidation; or
they may be coated with enamel.
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. In combination with a meter such as herein described the arrangements set forth
for the admission of water thereto; the water entering at the inlet, flowing around
the body or measuring cylinder and descending from the annulus between the casing
and the body, then turning inwards and ascending to an aperture on the underside of
the body which it enters all substantially as described.
2. In a meter such as herein described the method of arranging and combining the
casing, the cover and the body or measuring cylinder so that the latter is readily
removed and replaced substantially as described.
3. Lining the outer casing of the meter with non-oxidisable metal or alloy leaving
sealed air spaces between the casing and the lining substantially as described.
4. In a meter such as herein described forming the piston D of the material known
by the name of Dermatine.
5. In a meter such as herein described so forming the working cylinder that the
piston commences its linear movement before completing its partial rotary movement
substantially as described.
6. A meter substantially as described and represented by the annexed drawings.