Improvements in Magnetic Water Gauges.
Year: 1892

page_text: Date of Application, 11th Nov., 1892
Complete Specification Left, 9th Aug., 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Magnetic Water Gauges.
1, LJUBOMIR KLERITJ of Milan Street 11, Belgrad, Servia, Professor do hereby
declare the nature of this invention to be as follows:-
In my Specification No. 17526 of 1892 I have described several forms of water
gauges based on the action of a magnetic float on magnets or magnetic bodies in its
neighbourhood, these being caused by the attractive influence of the float to take
such positions as indicate the position of the float and consequently the water level
in a boiler or other vessel. According to my present invention, I place a
magnetic float within a boiler or within a vessel connected with the boiler, and iu
an adjacent transparent vessel I place a magnet or a piece of iron which is balanced
so that it is quite free to follow the movements of the magnetic float. One way of
balancing the indicating magnet or iron is to connect it by a cord passing over a
pulley to an equal weight of non-magnetic material.
Another way is to fill the transparent vessel with water or other liquid and make
the indicating magnet or iron exactly the weight of the liquid that it displaces.
In order to equalise the attraction on the indicating magnet or iron, the transparent
vessel containing it may be placed between two vessels containing the magnetic
floats. The indicating magnet or iron may be arranged to make in extreme
positions electrical contacts for alarm purposes.
Dated this 11th day of November 1892.
ABEL & IMKAI,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Magnetic Water Gauges.
I, LJUBOMIR KLERITS, of Milan Street 11, Belgrad, Servia, Professor, 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:-
In my Specification No. 17526 of 1892 I have described several forms of water
gauges based on the action of a magnetic float on magnets or magnetic bodies in its
neighbourhood, these being caused by the attractive influence of the float to take
such positions as indicate the position of the float and consequently the water level
in a boiler or other vessel. According to my present invention, I place a magnetic
float within a boiler or within a vessel connected with the boiler, and in an adjacent
transparent vessel I place a magnet or a piece of iron or steel which is balanced so
that it is quite free to follow the movements of the magnetic float.
One way of balancing the indicating magnet or iron is to connect it by a cord
passing over a pulley to an equal weight of non-magnetic material.
Another way is to fill the transparent vessel with water or other liquid and make
the indicating magnet or iron exactly the weight of the liquid that it displaces.
In order to equalise the attraction on the indicating magnet or iron, the transparent
vessel containing it may be placed between two vessels containing the magnetic
floats. The indicating magnet or iron may be arranged to make in extreme
positions electrical contacts for alarm purposes.
Figs. 1 and 2 are vertical sections shewing two vessels communicating with the
boiler and containing magnetic floats actuated directly by the water level; in a

page_text: separate vessel; a magnetic float having the same weight as the volume of liquid
displaced by it, so that it floats in any position.
Figs. 3 and 4 shew modifications in which only one float is actuated by the water-
level, this being placed either in a vessel communicating with the boiler as in Fig. 3
or within the boiler as in Fig. 4. Fig. 5 shews a modification in which the
separate magnet or piece of iron or steel is not immersed in liquid but is balanced
by a non magnetic counter weight.
In Figs. 1 and 2 a and a¹ are two vessels, communicating by short pipes bc, bic
with the steam and water spaces of the boiler d and containing magnetic floats e
and e¹. Between the vessels a a¹ is placed a separate vessel in which floats a
magnet or piece of iron or steel t the weight of which is equal or nearly so to
that of the volume of liquid displaced by it. When the magnets ee' have their
n poles upwards and s downwards, the magnet t, occupying the opposite position
supwards and n downwards, is always attracted by the float magnets and occupies a
higher or lower position according as the floats are higher or lower.
In Figs. 3 and 4 only one magnetic float e is placed, as in Fig. 3, in a vessel a
communicating with the boiler, or as in Fig. 4 in the boiler d itself, free to slide in
a compartment perforated at the top and bottom.
In Fig. 5 the visible magnet or iron or steel rod t indicating the water level is
not placed in a liquid but is counterbalanced by a non-magnetic weight t¹ connected
to it by an endless cord u passing over pulleys-ve the whole being arranged in a
casing.
The indicating magnet or iron may be arranged to make in extreme positions
electrical contacts for alarm purposes, as mentioned above.
In order to prevent deposit in the vessels a a¹ or on the floats, the vessels may be
partly charged with oil or other liquid lighter than water which will occupy the
upper parts of the vessels and in which the floats will be immersed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A magnetic water gauge in which a magnetic float, or several of these, acts on
a buoyant or balanced magnet or piece of iron or steel in a separate vessel causing
it to follow the movements of the float, and so to indicate the water level, sub-
stantially as described.
2. In a magnetic water gauge such as is above referred to, the arrangement of
the floats ee in a liquid lighter than water, as and for the purpose set forth.
Dated this 9th day of August 1893.
ABEL & IMRAY,
Agents for the Applicant.