feed tanks and "and other receptacles or passages
Year: 1873

page_text: "
"
hereby strike out and disclaim the words "metal" and "feed tanks
and "and other receptacles or passages," found near the beginning of
the description of our Invention in our Specification, together with the
words "a piece of" found near the end of our Specification; and we
alter by inserting the fresh words "at or near the surface of water used 5
therein, and to" after the original word "boilers" found near the
beginning of the description of our Invention in our Specification; also
the fresh words "or condensors" in substitution of the original words
'feed tanks," as above disclaimed; also the fresh word "and" following
the original words "steam pipes"; and also the fresh words "of metal" 1
after the original word are," all of which said original words are
found near the beginning of the description of our Invention in our
Specification; also the fresh words and in boilers be at or near the
surface of the water used" following the original words "steam
therein"; also the fresh words "in one or more pieces" after the 1
original words "zinc, which may be," all of which are found near the
end of our said Specification; and the said Specification when amended
by Disclaimer and Memorandum of Alteration will read as follows:-
"
:-
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
HODGSON LEE, of the Naval and Military Club, St. James', in the 2
County of Middlesex, Lieutenant in Her Majesty's Royal Navy, on
the Retired List, and CHARLES PRINGLE, of Ivy Lodge, Brixton Hill,
in the County of Surrey, Captain in Her Majesty's Royal Navy, send
greeting.
WHEREAS we are in possession of an Invention for "PREVENTING THE 2
DESTRUCTION OF BOILERS AND ENGINES BY GALVANIC ACTION," and have
petitioned Her Majesty to grant unto us, our executors, administrators,
and assigns, Her Royal Letters Patent for the same, and have made
solemn Declaration that we are the true and first Inventors thereof.
NOW KNOW YE, that we, the said John Hodgson Lee and Charles 3
Pringle, do hereby declare that the following Complete Specification,
under our hands and seals, fully describes and ascertains the nature of
the said Invention, and in what manner the same is to be performed in
and by the following statement:-
Our Invention consists in the application and introduction of zinc to a
and into boilers at or near the surface of water used therein, and to
cylinders, hot wells, or condensors, steam pipes, and water pipes, wherein

page_text: or whereby water is used or steam generated or carried, when such
receptacles and passages are of metal fitted or furnished more or less
with fittings or tubes composed of copper, or brass, or gun metal, or
of a composition of metal containing copper, and thereby establishing
a distinct and separate or another galvanic action between the copper
contained in the aforesaid fittings or tubes of the receptacles or passages
aforesaid and the zinc, and thus diverting or neutralizing the before
existing and destructive galvanic action between the aforesaid metal re-
ceptacles or passages and their fittings and tubes. The Invention
may be
performed by inserting in any convenient position within the aforesaid
receptacles or passages, and so that it may come in contact with the
water or steam therein, and in boilers, be at or near the surface of the
water used, zinc which may be in one or more pieces shaped in the form
of a plate, bar, or rod, or it may be perforated or made spherical, or of
any desired form or size.
In witness whereof, we, the said John Hodgson Lee and Charles
Pringle, have hereunto set our hands and seals, this Eighth day
of April, in the year of our Lord One thousand eight hundred
and seventy-three.

page_text: LETTERS PATENT to John Hodgson Lee, of the Naval and Military
Club, Saint James', in the County of Middlesex, Lieutenant in Her
Majesty's Royal Navy, on the Retired List, and Charles Pringle, of
Ivy Lodge, Brixton Hill, in the County of Surrey, Captain in Her
Majesty's Royal Navy, for the Invention of "PREVENTING
DESTRUCTION OF BOILERS AND ENGINES BY GALVANIC ACTION."
THE
Sealed the 4th April 1873, and dated the 18th February 1873.
COMPLETE SPECIFICATION filed by the said John Hodgson Lee and
Charles Pringle at the Office of the Commissioners of Patents,
with their Petition and Declaration, on the 18th February 1873,
pursuant to the 9th Section of the Patent Law Amendment Act,
1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
HODGSON LEE, of the Naval and Military Club, Saint James', in the
County of Middlesex, Lieutenant in Her Majesty's Royal Navy, on the
Retired List, and CHARLES PRINGLE, of Ivy Lodge, Brixton Hill, in the
County of Surrey, Captain in Her Majesty's Royal Navy, send greeting.

page_text: WHEREAS we are in possession of an Invention for "PREVENTING THE
DESTRUCTION OF BOILERS AND ENGINES BY GALVANIC ACTION," and have
petitioned Her Majesty to grant unto us, our executors, administrators,
and assigns, Her Royal Letters Patent for the same, and have made
solemn Declaration that we are the true and first Inventors thereof.
NOW KNOW YE, that we, the said John Hodgson Lee and Charles
Pringle, do hereby declare that the following Complete Specification,
under our hands and seals, fully describes and ascertains the nature
of the said Invention, and in what manner the same is to be performed,
in and by the following statement :-
Our Invention consists in the application and introduction of zino to
and into metal boilers, cylinders, hot wells, feed tanks, steam pipes,
water pipes, and other receptacles or passages wherein or whereby water
is used, or steam generated or carried, when such receptacles and
passages are fitted or furnished more or less with fittings or tubes
composed of copper, or brass, or gun metal, or of a composition of metal
containing copper, and thereby establishing a distinct and separate, or
another galvanic action between the copper contained in the aforesaid
fittings or tubes of the receptacles or passages aforesaid and the zinc,
and thus diverting or neutralizing the before existing and destructive
galvanic action between the aforesaid metal receptacles or passages and
their fittings and tubes. The Invention may be performed by inserting
in any convenient position within the aforesaid receptacles or passages,
and so that it may come in contact with the water or steam therein, a
piece of zinc which may be shaped in the form of a plate, bar, or rod, or
it may be perforated or made spherical or of any desired form and size.
In witness whereof, we, the said John Hodgson Lee and Charles
Pringle, have hereunto set our hands and seals, this Eighth day
of February, in the year of our Lord One thousand eight hundred
and seventy-three.