Year: 1886

page_text: I, JAN ANTHONY MULLER, of 4 Deans Court, Doctors Commons, in the city of
London, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is principally to ensure the sensitiveness of meters
as for water or liquid, that is to say to prevent the outflow of small volumes of
water or other liquids through these instruments of precision taking place without
an adequate or proportionate indication of such volumes by means of the registering
gear.
Many efforts have been made in this direction, but they have been to great
extent unsuccessful for this reason, that the parts of these instruments set in
rotation or motion by the available power or force of the water or liquid, possess
in some of these instruments a very great weight indeed which consequently creates
a considerable amount of friction, and it is obvious that a certain proportion of the .
power of the water or liquid must be utilized to overcome this friction before any.
motion or indication on the registering gear can take piace.
To obviate this very serious defect in water or liquid meters I construct the.
parts to he set in rotation or motion by the water or liquid of vulcanite or ebonite.
of suitable dimensions and shape according to the requirements of the particular
system of water or liquid meter to which they are to be applied and I form in
these vulcanite or ebonite parts an enclosed water and air-tight cavity of such
capacity that it shall contain the necessary volume of air requisite to make the
weight of these parts (together with the weight of magnets or arm of fan-wheel or
turbine as the case may be-and the pivots) equal to the density or specific gravity
of the water or liquid to be measured.
A very simple form of these vulcanite or ebonite parts I construct as follows:-
Two half shells of vulcanite or ebonite are moulded or made in such form and
manner, that when screwed and fixed together they form externally a water and
air tight cylinder or casing of the required dimensions with an internal cavity to

page_text: contain the necessary volume of air, and of sufficient thickness of its walls or sides
to resist the pressure of the head of water or liquid under which they are to
perform their work.
This invention will provide the means of rendering certain systems of water
and liquid meters considerably more sensitive than they otherwise could possibly
be without this device.
By charging the cavity with hydrogen or other suitable gas the vulcanite or
ebonite cylinder receiving the first motion or rotation, can be made equal to the
density or specific gravity of air or the several gases, and will thus serve as
a highly sensitive meter for measuring and registering the currents of air and the
several gases.
The sensitiveness of current meters for liquids and fluids will be further
increased by transmitting the rotation or motion of the vulcanite or ebonite
cylinder to the registering gear by means of two magnets of equal power and with
their unequal poles placed in juxtaposition to each other, so as to counteract the
attraction of the earth's magnetism.
WALTER A. BARLOW,
6, St. Paul's Churchyard, London, E.C.

page_text: Gases.
I. JAN ANTHONY MULLER now of Crown Yard, Stanhope Street London N.W.
(late of 4 Dean's Court, Doctor's Commons in the City of London) Civil Engineer
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:
The object of this invention is principally to ensure the sensitiveness of meters
as for water or liquid that is to say to prevent the outflow of small volumes of
water or other liquids through these instruments of precision without an adequate
or proportionate indication of such volumes by means of the registering gear.
Many efforts have been made in this direction but they have been to great
extent unsuccessful for this reason that the parts of these instruments, set in
rotation or motion by the available power or force of the water or liquid possess in
many cases a comparatively great weight which consequently creates a considerable
amount of friction and it is obvious that a certain proportion of the power of the
water or liquid must be utilized to overcome this friction before any motion or
indication on the registering gear can take place.
To obviate this very serious defect in water or liquid and fluid meters I construct
the parts to be set in rotation or motion by the liquid or fluid, of vulcanite or
ebonite of suitable dimensions and shape according to the requirements of the
particular system of water or liquid, and fluid meter to which they are to be
applied, and I form in these vulcanite or ebonite parts an enclosed water and air
tight cavity of such capacity that it shall contain the necessary volume of air to
make the weight of these parts (together with the weight of magnets or arm of
fan wheel or turbine as the case may be and the pivots) equal to the density or the
specific gravity of the water or liquid or fluid to be measured.
are
A very simple form of these vulcanite or ebonite parts is shown in the
accompanying drawings. Figs. 1 and 2 being section and plan respectively fitted
with magnets and Fig. 3 showing in section the invention applied to a turbine.
The construction is as follows. Two half shells of vulcanite or ebonite a, a',
moulded or made in such form and manner that when screwed or fixed together
they form externally a water and air tight cylinder or casing of the required
dimensions with an internal cavity b. to contain the necessary volume of air, and
with sufficient thickness of its walls or sides to resist the pressure of the head of
liquid or fluid under which it is to perform its work. The centre pieces c whose
ends abut against each other when the two halves are fixed together as shown in
the drawing are for the purpose of further strengthening the parts to resist the
pressure of the head of water or other liquid or fluid; e, e¹ are the pivots or centres
upon which this cylinder will turn The sensitiveness of current meters for liquids
and fluids will be further increased by transmitting the rotation or motion of the
vulcanite or ebonite cylinder to the registering gear by means of two magnets d

page_text: (Fig. 1 & fig. 2) of equal power and with their unequal poles placed in juxtaposition
to each other so as to counteract the attraction of the earth's magnetism.
In Fig. 3 is shown a convenient manner in which this vulcanite or ebonite
cylinder may be used in connection with the system of turbine water meters,
A being the turbine as now used and B the vulcanite cylinder securely attached to
the channel of the turbine by means of the seating C and nut C. The cavity in
this cylinder B will be made of sufficient capacity to make the weight of the
turbine and the quantity of water or liquid which it contains equal to the
specific gravity of water or other liquid to be measured. In a like manner this
ebonite cylinder can be attached to other systems of water meters where the
motion is communicated in the first instance to a drum, or vane wheel, or set of
vane wheels, or as the case may be.
It will be seen from the foregoing that this invention will provide the means of
rendering certain systems of water or liquid meters more sensitive than they
otherwise could possibly be without this device.
By charging the cavity with hydrogen or other suitable gas the vulcanite or
ebonite cylinder receiving the first motion or rotation, can be made equal to the
density or specific gravity of air or the several gases or fluids and will thus serve
as a highly sensitive meter for measuring and registering the currents of air and
the several gases.
Having now particularly described and ascertained the nature and particulars of
my said invention and in what manner the same is to be carried into practical
effect I claim―
Firstly. In an apparatus for measuring and registering currents of liquids and
fluids, the cylinder or part made of ebonite or vulcanite with an internal air tight
cavity as herein described and shown by the drawings.
Secondly. In an apparatus for measuring and registering currents of liquids and
fluids the cylinder or part made of ebonite or vulcanite with an internal air tight
cavity in combination with magnets for transmitting the rotation of said cylinder
to the registering gear as herein set forth.
1000