Keeping Steam-boilers Free from Incrustation.
Year: 1885

page_text: Keeping Steam-boilers Free from Incrustation.
1, WILLIAM ROBERT LAKE, of the firm of Haseltine Lake & Co Patent Agents,
Southampton Buildings in the County of Middlesex do hereby declare the nature
of my invention for "IMPROVEMENTS RELATING TO THE APPLICATION OF ELEC-
TRICITY FOR KEEPING STEAM-BOILERS FREE FROM INCRUSTATION 'to be as
follows:-
"
This invention relates to the application of electricity for the prevention of
incrustation in steam boilers or generators, or the like, and for the removal of
incrustation from the surfaces of the said boilers or generators in case any has
been formed thereon.
In carrying the said invention into practice I employ a voltaic battery of suitable
power for the prevention of deposit upon, or for the removal of deposit from, the
surfaces of the boiler or boilers with which it is connected.
The shell of a boiler is placed in communication with the positive pole of the
said battery by one conducting wire, whilst the negative pole of the battery
communicates through another conductor with the liquid contained in the said
boiler or generator. Between the last mentioned conductor and the shell of the
boiler flows an electric current which effects the decomposition of the incrustating
salts accumulated upon the internal surface of the boiler and causes them to fall
to the bottom of the latter whence they are easily removed.
The two conductors may be advantageously fixed to the steam-pipe and the feed-
pipe respectively, the latter being insulated from the shell of the boiler.
For boilers or similar apparatus free from incrustation and within which
incrustation is to be prevented, a constant current is caused to flow between the
conductor in the liquid and the shell of the boiler, thereby decomposing the incrus-
ating salts in proportion as they tend to settle, and producing at the bottom of
The boiler a pulverulent precipitate which can be removed with facility.
Price Bill

page_text: In order to render these different effects of electricity complete, it is advisable
to place in the interior of the boiler shell, lead-ore, pulverized iron, or any other
good conductor of electricity, an operation which requires to be effected every time
the boiler is emptied for cleaning purposes.
HASELTINE, LAKE & Co.,
For the Applicant.
Keeping Steam-boilers Free from Incrustation.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature
of my invention for "IMPROVEMENTS RELATING TO THE APPLICATION OF ELEC-
and in what
FREE FROM INCRUSTATION
TRICITY FOR KEEPING STEAM-BOILERS
"
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
This invention relates to the application of electricity for the prevention of
incrustation in steam boilers or generators or the like, and for the removal of
incrustation from the surfaces of the said boilers or generators in case any has
been formed thereon.
In order to make this invention understood I have shown in the accompanying
drawing its application to an ordinary boiler.
A indicates a voltaic battery of suitable power for supplying an electric current
to one or more boilers or generators B in which incrustation is to be prevented, or
from which it is to be removed.
The shell b of the boiler A is placed in electrical communication with the
positive pole of the said battery A by a conducting wire C, whilst the negative
pole of the said battery communicates through the conductor D with the liquid
contained in the said boiler or generator. Between the conductor D and the shell b
of the boiler flows an electric current which effects the decomposition of the
incrustating salts accumulated upon the internal surface of the boiler and causes
them to fall to the bottom of the latter, whence they are easily removed by
ordinary cleaning.
The two conductors C, D may be advantageously fixed to the steam pipe E,
and the feed pipe F respectively, the latter being insulated from the shell 6 of the
boiler.
For boilers or similar apparatus free from incrustation and within which incrus
tation is to be prevented, a constant current of electricity is caused to flow between

page_text: the conductor D, in the liquid, and the shell of the boiler, thereby decomposing the
incrustating salts in proportion as they tend to deposit, and producing at the
bottom of the boiler a precipitate which can be removed with facility.
In order to render these different effects of electricity complete it is advisable to
place in the interior of the boiler shell and in contact therewith, lead ore, pulverized
iron, or any other good conductor of electricity, an operation which requires to be
effected every time the boiler is emptied for cleaning purposes.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign Correspondent I declare that what I claim is
The application of electricity for the prevention of incrustration upon, and
removal of incrustation from, the internal surfaces of steam boilers or generators,
or other similar apparatus, with or without the employment of substances which
are good conductors of electricity, such as lead-ore, pulverized iron, and the like,
the said substances being designed to facilitate the passage of an electric current
through the shell of the boiler or generator, or the like and the water contained
therein, substantially as described with reference to the accompanying drawing.
Dated this 23rd day of October 1885.
“HASELTINE, LAKE & Co.,
For the Applicant.