IMPROVEMENTS IN COMPOSITIONS FOR PREVENTING THE CORROSION AND THE FOULING OF SHIPS' BOTTONS OR OTHER SUBMERGED STRUCTURES
Year: 1873

page_text: LETTERS PATENT to Jesse Gustavus Redman, of No. 2, Railway
Street, New Brompton, in the County of Kent, Assayer, for the
Invention of "IMPROVEMENTS IN COMPOSITIONS FOR PREVENTING THE
CORROSION AND THE FOULING OF SHIPS' BOTTONS OR OTHER SUBMERGED
STRUCTURES."
•
Sealed the 18th April 1873, and dated the 27th February 1878.
PROVISIONAL SPECIFICATION left by the said Jesso Gustavus Redman
at the Office of the Commissioners of Patents, with his Petition,
on the 27th February 1873.
I, JESSE GUSTAVUS REDMAN, of No. 2, Railway Street, New Brompton,
in the County of Kent, Assayer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN COMPOSITIONS FOR PREVENTING THE CORROSION
AND THE FOULING OF SHIPS' BOTTOMS OR OTHER SUBMERGED STRUCTURES," to be as
follows:-
>

page_text: of protecting the bottoms of ships and other structures as herein-after
set forth.
I use in the manufacture of such compositions red lead, white lead,
litharge, oxide of zinc, ochro, subchloride of mercury, linseed oil, terebine,
spirits of turpentine, or any other suitable spirit.
The process of admixture I adopt is as follows:-For the protective or
anti-corrosive composition I take 50 lbs. of red lead, 30 lbs. of white
Irad, 10 lbs. of litharge, and 20 lbs. of oxide of zinc; well mix these with
5 gallons of linseed oil, and 2 quarts of spirits of turpentine, or an
equivalent of terebine or other spirit suitable for the purpose.
Before applying this composition to iron ships' bottoms or other
metallic surfaces to be protocted I first well clean the surface to be
covered and then dry it, after which I apply not less than two coats, but
in most cases three coats of the anti-corrosive compound. When these
protective or anti-corrosive coats are well dry I apply the anti-fouling 1
composition, which is compounded as follows:-G0 lbs. of red lead, 30 lbs.
of oxide of zinc, 10 lbs. of ochre, and 30 lbs. of the subchloride of mercury,
5 gallons of linseed oil, and 1½ gallons of spirit of turpentine or other
suitable spirit.
The aforenamed proportions of the several ingredients answer under
ordinary circumstances, but I do not bind myself to adhere to these
proportions only nor to the employment of all of the above-named
ingredients, but vary them agreeably to circumstances, always retaining,
however, the subchloride of mercury.
To the bottom of wood ships and other wooden surfaces I apply the
anti-fouling composition without the intervention of the protective

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of February, in tho
year of our Lord One thousand eight hundred and seventy-three, in
the thirty-sixth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Jesse Gustavus Redman,
Her special licence that I, the said Jesso Gustavus Redman, my exc-
cutors, administrators, and assigns, or such others as I, the said Jesso
Gustavus Redman, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN COMPOSITIONS FOR PREVENTING THE CORROSION AND THE
FOULING OF SHIPS' BOTTONS OR OTHER SUBMERGED STRUCTURES," upon the con-
dition (amongst others) that I, the said Jesse Gustavus Redman, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and scals, should particularly describo and
ascertain the nature of the said Invention, and in what manner the
same was to, bo performed, and cause the same to bo filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Jesse Gustavus Redman, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement thereof, that is to say:-
This Invention relates to the employment of subchloride of mercury
as a base or body in combination with other ingredients for the purposes
of protecting the bottoms of ships and other submerged structures, as
herein-after set forth.
I use in the manufacture of such compositions red lead, white lead,
litharge, oxido of zinc, ochre, subchloride of mercury, linseed oil, terebine,
spirits of turpentine, or any other suitable spirit.
The process of admixture I adopt is as follows:-For the protectivo
or anti-corrosive composition I take 50 lbs. of red lead, 30 lbs. of white
lead, 10 lbs. of litharge, and 20 lbs. of oxide of zinc, well mix these with
5 gallons of linseed oil, and 2 quarts of spirit of turpentine, or an
equivalent of terebine or other spirit suitable for the purpose.

page_text: Before applying this composition to iron ships' bottoms or other
metallic surfaces to be protected, I first well clean the surface to be
covered and then dry it, after which I apply not less than two coats, but
in most cases three coats of the anti-corrosive compound. When these
protective or anti-corrosive coats are well dry I apply the anti-fouling
composition, which is compounded as follows:+60 lbs. of red lead, 30 lbs.
of oxide of zinc, 10 lbs. of ochre, and 30 lbs. of the subchloride of:
mercury, 5 gallons of linseed oil; and 1 gallons of spirit of turpentine
or other suitable spirit. The subchloride of mercury is the essential
ingredient in the composition.
The before-named proportions of the several ingredients answer under
ordinary circumstances, but I do not bind myself to adhere to these
proportions only nor to the employment of all of the above-named
ingredients, but vary them agreeably to circumstances, always, however,
retaining the subchloride of mercury.
To the bottoms of wood ships and other wooden surfaces I apply the
anti-fouling composition without the intervention of the protective
composition.
I
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I déclare that I claim,—
•
Firstly. The employment of subchloride of mercury as a base or body
in combination with other ingredients to form compositions for protecting
the bottoms of ships and other submerged structures from corrosion and
fouling.
Secondly. The compositions for preventing the corrosion and the
fouling of ships or other submerged structures in which subchloride of
mercury is employed as a base or body in combination with other.
ingredients, substantially as herein-before described. .
In witness whereof, I, the said Jesse Gustavus Redman, have
hereunto set my hand' and seal, this Nineteenth day of August,
One thousand eight hundred and seventy-three.
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