Improvements in Water-meters.
Year: 1898

page_text: Date of Application, 7th Nov., 1898-Accepted, 28th Jan., 1899
COMPLETE SPECIFICATION.
Improvements in Water-meters.
We, SÁMUEL SÁPY, Station-Superintendent, of Agostonfalva, Hungary, GÉZA
STETTNER, Merchant, of No. 2, Iskolater, Buda-Pesth, Hungary, LUIS HEGEDUS,
Merchant, of No. 16, Orszagteruteza, Buda-Pesth, and STEFAN GYURICH, Civil
Servant, of No. 19, Orszagteruteza, Buda-Pesth, Hungary, aforesaid, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
The present invention relates to a water-meter, and comprises an arrangement
in which the water, as it passes through the apparatus, sets a paddle wheel in
motion by virtue of its impact thereon, in such manner that the number of rota-
tions of the shaft are in accordance with the volume of water passing, so that the
number of revolutions of the paddle-wheel shaft may serve to indicate the
measurement of the said volume."
In order that the above water-meter shall register the consumption of water
only, and that on the entrance of air no revolution of the paddle-wheel shaft may
take place, there is provided on the water main, in front of the water-meter, an air
cut-out device.
In the accompanying drawings the new water-meter is illustrated in detail.
Fig. 1 shews the meter in outside plan.
Fig. 2 is a vertical longitudinal section.
Fig. 3 shews the air cut-out device in vertical longitudinal section.
Fig. 4 is a horizontal section of the latter, and
Fig. 5 shews the meter set up complete, on a smaller scale.
As will be seen from Figures 1 and 2, the water-meter proper is enclosed in an
elliptical casing a formed of two flat plates, and consists essentially of a perforated
cylinder 6 in which the paddle-wheel d mounted upon the horizontal shaft c
is excentrically journalled. The cylinder b occupies the whole of the casing a
in cross section, so that the water passing through the meter must pass across the
cylinder. The excentrically journalled paddle-wheel d is furnished with floats d³,
swinging on pivots d¹, which, as the paddle wheel rotates, bear constantly against
the inner wall of the cylinder b. The floats das also the paddle wheel d, are
of the same width as the cylinder b, so that the water cannot, under any circum-
stances, flow past the sides of the floats 2, but only behind them
As the excentrically journalled paddle wheel & touches the inside of the cylinder
sieve at its upper part, the water can only flow beneath it. The floats 2 can
therefore only revolve in one direction round the shaft. Each float 2 is furnished
with a spring d³, projecting into the interior of the paddle wheel, which spring
glides over the drum e, centrally mounted within the cylinder, and constantly
presses the floats against the interior of the cylinder. As a result of
this arrangement, the whole mass of water passing through assists in effecting
the rotation of the paddle wheel, and furthermore the number of the rotations of
this latter is directly proportional to the volume of water passing through. To
register the quantity of, water, measured, a revolution-counter g, of any suitable
construction, coupled to the shaft of the paddle wheel d, may be employed.

page_text: As mentioned above, to guard against the possibility of air entering the
apparatus and setting the latter in motion (thereby being registered as water),
there is provided upon the main, in front of the meter, an air cut-out device.
This air cut-out device consists of a cylindrical container h (Figures 3 and 4),
into which the water from the main enters tangentially through the nozzle i
passing to the lower outlet pipe with a circular movement. While the water in
the container h circulates, the air drawn in with it escapes through an air pipe k
in the cover of the cylinder, into the atmosphere. The air pipe k is surrounded
by a perforated casing to prevent water being taken from the apparatus at this
point.
In the container h is arranged a cylindrical float l, guided on vertical rods m.
When in its lowest position, the float closes by its under side the mouth of
the outlet pipe 22; in its highest position its upper end 13 shuts off the air pipe k,
so that in the first case, if the head of water slackens, no air will enter the meter,
and in the latter case, that is, of excessive water pressure, the water cannot
escape from the air pipe.
Having now particularly described the nature of our said invention and in what
manner the same is to be performed, we declare that what we claim is:-
1. A water meter consisting of a perforated cylinder b, having a paddle wheel
excentrically journalled therein, and having pivotted floats constantly bearing
against the inside of the cylinder, and completely filling up the inner cross
section of the cylinder, in such manner that the wheel is rotated by the impact of
the water passing across the cylinder, so that, from the number of rotations of the
paddle wheel shaft, the volume of water passing through may be calculated, sub-
stantially as described.
2. In conjunction with the water-meter hereinbefore described, the employment
of an air excluding device h, into which the water enters tangentially, on its way
to the meter, and from which the air drawn in by the water is allowed, during
the circulation of the latter, to escape through an air pipe k in the cover of the
container, said air pipe, on the container h becoming completely filled with water,
being closed by a float 7, which moreover, on the complete emptying of the said
container, serves to close the main leading to the meter, thereby preventing the
entrance of air to the latter, substantially as set forth.
Dated this 7th day of November 1898.
NEWTON & SON,
Agents for the Applicants.