An Improved water meter.
Year: 1899

page_text: Date of Application, 18th Mar., 1899
Complete Specification Left, 7th Oct., 1899-Accepted, 8th Dec., 1889
An Improved water meter.
I, HANS REISERT, of 34, Huhnsgasse, Cologne on the Rhine, Province of
the Rhine, Germany, Mechanical Engineer, do hereby declare the nature of
this invention to be as follows:-
66
My invention relates to an apparatus in shape of a drum (which for the sake
of brevity I shall hereafter denominate by the term water-meter") by means
of which the quantity of water passing from any reservoir, common stock or
other source, may be measured.
The water to be measured flows into a drum, which is divided into soveral
chambers or compartments in such a way, that each chamber is filled to a
certain point and afterwards emptied again by the rotation of the drum caused
by the overweight on one side of this drum. As such water-meters must revolve
very easily, in order to prevent the streaming through of unmeasured water,
former constructions never worked precisely, on account of the chambers often
not being entirely filled at the moment, when by the rotation of the drum the
water has already began to flow out. In my new invention means are provided
to prevent this underfilling of the compartments and to ensure that each com-
partment is filled exactly to a certain point.
In the accompanying drawings Figs. 1 to 4 show a construction of the water-
neter in which the water flows freely from the middle of the drum into the same
without being regulated before.
Fig. 5 to 8 is another construction of this kind used especially if greater
quantities of water are to be measured.
Fig. 1 shows a vertical section of the first construction.
Fig. 2 shows a vertical section of the same at right angles to Fig. 1.
Fig. 3 and 4 are sketches of different positions of the water-meter.
The drum T (Fig. 1) is divided in four compartments 1, 2, 3 and 4, which
through the tubes and are connected with the atmosphere. Tho
water to be measured flows through the hollow shaft g¹ steadily and freely into
the drum.
At the partitions
and p of the different compartments plates g¹ 2ª g³
and 2 are fixed, which form the pockets and s. In order to ensure that
an overweight on one side of the drum T and therewith a rotation of the same
takes place the partitions - are not arranged radially but diverge something
from the radius drawn from the centre to the point where they are fixed to
the circumference of the drum in the direction of the arrow.
In the position shown in Fig. 1, the compartment 1 is filled in the right
way, that is to say it contains the quantity of water, that each compartment
shall contain when it begins to empty. In this position the end of the partition p¹
is on the same level with the free end of the tube . If now the drum T
begins to rotate on account of the overweight on the right hand side, the water
of the compartment 1 flows out through the tube . During this time the water
077

page_text: to be measured, flows through the hollow shaft g¹ into the pocket s¹ and from
there into the compartment 2.
When now by the rotation the partition 7 sinks under the horizontal radius
of the drum, the streaming-in water would flow not only into the compartment 2
but also into the compartment 3, so that the compartment 2 could not be filled
sufficiently, if the plate had not been arranged. By this plate the water is
caused to flow into the pocket and from there back into the compartment 2
(see Fig. 3). This lasts until the end of the plate 2 is on the same level with
the end of the partition 22 as shown in Fig. 4. As soon as this position is
passed no more water can flow from ginto the compartment 2, which is now
completely filled.
When the drum T¹ rotates farther, some water will flow over the end of the
partition på into the compartment 3, until the end of the partition på is on the
same level with the end of the tube . The compartment is now in the same
position as compartment 1 was in Fig. 1 and is filled exactly with the same
quantities of water. In this construction the drum Ț (Fig. 5) is divided into
ment 3.
It is shown herewith, that in order to always obtain exactly the same quantity
of water, the compartments are at first overfilled and afterwards the surplus
of water flows into the next compartment, by means of which arrangement the
highest accuracy in measuring is attained.
In Figs. 5-8 another construction is shown, better fitted for measuring great
quantities of water. In this construction the drum T2 (Fig. 5) is divided into
6 compartments, the partitions of which are arranged in the same way as in the
first construction.
Fig. 5 is a vertical section of this construction.
Fig. 6 is a vertical section of the same at right angles to Fig. 5.
Figs. 7 and 8 are sketches of different positions of the drum.
The water to be measured flows in through the hollow shaft g, which is now
supplied with a special outlet g³. This outlet is arranged at an angle of 45 degrees
and so that while the drum rotates the ends of the partitions slide closely over
it.
The effect of this water-meter will be easily understood when looking at its
different positions shown in Fig. 5, 7 and 8. It is nearly the same as in the
construction described before, especially in respect of that each compartment is
at first overfilled, and afterwards the surplus flows into the next compartment.
Regarding for instance compartment 6 it will be seen in Fig. 5 that it is filled
as required and that no more water can flow from the compartment 6 into the
following compartment 5, as the surface of the water in compartment 6 is level
with the outlet end of the tube, and will now sink very quickly as this com-
partment begins to empty. If the drum is in the position shown in Fig. 7
the surplus water of compartment 6 flows into compartment 5, while the latter
gets filled at the same time. Fig. 8 shows compartment 6 nearly empty and
the surplus water of compartment 5 as well as the water entering the drum
flowing into compartment 4.
In this construction 6 outlet tubes are provided, these tubes
heing arranged one behind the other, so that there are always three in one
vertical plane.
If the water-meter has unusually great dimensions, it might happen that
the rotation of the drum by the compartments being emptied very quickly might
go on by fits and starts. To prevent this it is advisable to arrange in each
compartment partitions (compartment 1 Fig. 5), which prevent the compart-
ments being emptied too suddenly. Usually this arrangement is not necessary.
Dated this 14th day of March 1899.

page_text: An improved water meter.
I, HANS REISERT, of 34, Huhnsgasse, Cologne on the Rhine, Province of
the Rhine, Germany, Mechanical Engineer, do hereby declare the nature of
this my invention, and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:
--
My invention relates to an apparatus in shape of a drum (which for the sake
of brevity I shall hereafter denominate by the term "water-meter") by means
of which the quantity of water passing from any reservoir, common stock or
other source, may be measured.
The water to be measured flows into a drum, which is divided into several
chambers or compartments in such a way, that each chamber is filled to a
certain point and afterwards emptied again by the rotation of the drum caused
by the overweight on one side of this drum. As such water-meters must revolve
very easily, in order to prevent the streaming through of unmeasured water,
former constructions never worked precisely on account of the chambers often
not being entirely filled at the moment, when by the rotation of the drum the
water has already begun to flow out. In my new invention means are provided
to prevent this underfilling of the compartments and to ensure that each com-
partment is filled exactly to a certain point.
In the drawings which accompanied the Provisional Specification Figs. 1 to 4
shows a construction of the water-meter in which the water flows freely from
the middle of the drum into the same without being regulated before.
Fig. 5 to 8 is another construction of this kind used especially if greater
quantities of water are to be measured.
In the drawings hereunto appended
Fig. 9 shows a modification of the construction shown in Figs. 5—8.
Fig. 1 shows a vertical section of the first construction.
Fig. 2 shows a vertical section of the same at right angles to Fig. 1.
Fig. 3 and 4 are sketches of different positions of the water-meter.
The drum T (Fig. 1) is divided in four compartments 1, 2, 3 and 4, which
through the tubes and are connected with the atmosphere. The
water to be measured flows through the hollow shaft g steadily and freely into
the drum.
At the partitions 73 and 74 of the different compartments plates g¹ 2º 2ª
and are fixed, which form the pockets and s. In order to ensure, that
an overweight on one side of the drum T¹ and herewith a rotation of the same
takes place the partitions - are not arranged radially but diverge something
from the radius drawn from the centre to the point where they are fixed to
the circumference of the drum in the direction of the arrow.
In the position shown in Fig. 1, the compartment 1 is filled in the right
way, that is to say it contains the quantity of water, that each compartment
shall contain when it begins to empty. In this position the end of the partition pl
is on the same level with the free end of the tube . If now the drum T
begins to rotate on account of the overweight on the right hand side, the water
of the compartment 1 flows out through the tube . During this time the water
to be measured, flows through the hollow shaft g' into the pocket s¹ and from
there into the compartment 2.
When now by the rotation the partition sinks under the horizontal radius
of the drum, the streaming-in water would flow not only into the compartment 2
but also into the compartment 3, so that the compartment 2 could not be filled
sufficiently, if the plate y had not been arranged. By this plate the water is

page_text: caused to flow into the pocket s and from there back into the compartment 2
(see Fig. 3). This lasts until the end of the plate q is on the same level with
the end of the partition 7 as shown in Fig. 4. As soon as this position is
passed no more water can flow from g¹ into the compartment 2, which is now
completely filled.
When the drum T' rotates farther, some water will flow over the end of the
partition into the compartment 3, until the end of the partition 22 is on the
same level with the end of the tube. The compartment is now in the same
position as compartment 1 was in Fig. 1 and is filled exactly with the same
quantity of water, as the surplus of water has been delivered to the compart-
ment 3.
It is shown herewith, that in order to obtain always exactly the same quantity
of water, the compartments are at first overfilled and afterwards the "surplus
of water flows into the next compartment, by means of which arrangement the
highest accuracy in measuring is attained.
In Fig. 5-8 another construction is shown, better fitted for measuring great
quantities of water. In this construction the drum T (Fig. 5) is divided into
6 compartments, the partitions of which are arranged in the same way as in the
first construction.
Fig. 5 is a vertical section of this construction.
Fig. 6 is a vertical section of the same at right angles to Fig. 5.
Figs. 7 and 8 are sketches of different positions of the drum.
The water to be measured flows in through the hollow shaft 9, which is now
supplied with a special outlet 93. This outlet is arranged at an angle of 45 degrees
and so that while the drum rotates the ends of the partitions slide closely over
it.
The effect of this water-meter will be easily understood when looking at its
different positions shown in Fig. 5, 7 and 8.” It is nearly the same as in the
construction described before, especially in respect of that each compartment is
at first overfilled and afterwards the surplus flows into the next compartment.
Regarding for instance compartment 6 it will be seen in Fig. 5 that it is filled
as required and that no more water can flow from the compartment 6 into the
following compartment 5, as the surface of the water in compartment 6 is level
with the outlet end of the tube, and will now sink very quickly, as this com-
partment begins to empty. If the drum is in the position shown in Fig. 7
the surplus water of compartment 6 flows into compartment 5, while the latter
gets filled at the same time. Fig. 8 shows compartment nearly empty and
the surplus water of compartment 5 as well as the water entering the drum
flowing into compartment 4.
In this construction 6 outlet tubes gul gult gut got guare provided, these tubes
being arranged one behind the other, so that there are always three in one
vertical plane.
Fig. 9 shows a modification of the construction shown in Figs. 5-8. In this
arrangement the plates forming the partitions are curved from the periphery
toward the axle whereby the drum proper is formed, the said plates being arranged
so as not to touch each other, the space left between them serving as an outlet
from each respective compartment, thereby rendering superflos the special outlet
pipes provided in the modifications previously described.
If the water-meter has unusually great dimensions, it might happen that
the rotation of the drum by the compartments being emptied very quickly might
go on by fits and starts. To prevent this it is advisable to arrange in each
compartment partitions 2 (Fig. 5), which prevent the compartments
being emptied too suddenly. Usually this arrangement is not necessary.
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:
A rotating water-meter in form of a drum, divided by partitions in several

page_text: compartments each of which is at first overfilled and then the surplus flows over
into the next compartment in order to obtain a greater accuracy.
Dated this 7th day of October 1899.
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, London, E.C.,
Agent for the Applicant.