DISCLAIMER AND MEMORANDUM OF ALTERATION
Year: 1854

page_text: Letters Patent a Specification was duly filed.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed to be
entered by Charles Bickford, of Bromley Terrace, Bromley Saint Leonards,
in the County of Middlesex, Boiler Maker, and Jaines Baillie, of Robert
Street, Limehouse, in the same County, Joiner, assignees of the said
Letters Patent, according to the Statutes in that case made and
provided.
WHEREAS in the Specification filed to the said Letters Patent there is
contained a reference to other materials besides those consisting of a layer or
coating of black varnish, and over or upon that a layer of asphalte; and
whereas since the granting of the said Letters Patent we, the said CHARLES
BICKFORD and JAMES BAILLIE, have discovered that all the materials so referred
to besides those consisting of a layer or coating of black varnish, and over or
upon that a layer of asphalte, were or had been in use by others at the date of
the said Letters Patent; for which reason we wish to disclaim, and we do
hereby disclaim all parts of the said Specification which do claim any right or
title to the use of any material or materials besides those consisting of a layer

page_text: or coating of black varnish, and over or upon that a layer of asphalte, that is
to say, these words, "or a coating of boiled oil, and black lead, and black
varnish, or of black varnish, asphalte, and spirits of naptha; " and also these
words, "In some cases we combine a portion of white arsenic with the com-
positions used for the outside of iron ships and vessels, in order to prevent
"the adhesion of animal matters, &c. to the plates," which are contained in
the said Specification.
And we do hereby declare that the said Specification when so amended will
describe the undisclaimed parts of the said Invention as follows:-
Our Invention consists in the method of applying preservative compositions.
both internally and externally to the plates and other parts of which iron ships
and vessels are constructed. Asphalte, and bituminous varnishes are known as
forming good preservative coatings, but it has hitherto been found imprac-
ticable to cause them to adhere to the metal. Now, our Invention consists in
first laying on a layer or coating of black varnish and then a layer of asphalte..
We do not consider it necessary to specify any particular proportions of the
materials used in preparing the compositions before mentioned, as they may be
very considerably varied without affecting the results obtained from their use.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that what we claim as
our Invention is, the method herein-before described of applying preservative
compositions both internally and externally to the plates and other parts of
which iron ships and vessels are constructed.
In witness whereof, we, the said Charles Bickford and James Baillie
have hereunto set our hands and seals, the day of November, in
the year of our Lord One thousand eight hundred and fifty-seven.

page_text: LETTERS PATENT to Joseph Westwood, of Poplar, in the County of
Middlesex, Iron Ship Builder, and Robert Baillie, also of Poplar, in the
County of Middlesex, Iron Ship Builder, for the Invention of "A
METHOD OF PROTECTING IRON SHIPS AND VESSELS FROM CORROSION AND ANIMAL
PROVISIONAL SPECIFICATION left by the said Joseph Westwood and
Robert Baillie at the Office of the Commissioners of Patents, with their
Petition, on the 6th September 1854.
We, JOSEPH WESTWOOD, of Poplar, in the County of Middlesex, Iron Ship
Builder, and ROBERT BAILLIE, also of Poplar, in the County of Middlesex,.
Iron Ship Builder, do hereby declare the nature of the said Invention for "A
METHOD OF PROTECTING IRON SHIPS AND VESSELS PROM CORROSION AND ANIMAL AND
VEGETABLE MATTERS " to be as follows:-
Our Invention consists in the method of applying preservative compositions
to the plates, both internally and externally, of which iron ships are con-
structed. Asphalte and bituminous varnishes are known as forming good pre-
servative coatings, but it has hitherto been found impracticable to cause them
to adhere to the metal. Now, our Invention consists in first laying on a layer
or coating of black varnish for the inside of the plates, and a coating of boiled
oil and black lead for the outside. Over this coating both externally and
internally we apply a composition of Stockholm tar, pitch, and black varnish,
or of black varnish and asphalte, or of some other similar bituminous com
position.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Westwood and Robert Baillie, in the Great Seal
Patent Office on the 5th March 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
WESTWOOD, of Poplar, in the County of Middlesex, Iron Ship Builder, and
ROBERT BAILLIE, also of Poplar, in the County of Middlesex, Iron Ship
Builder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of September, in the year of our Lord
One thousand eight hundred and fifty-four, in the eighteenth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us; the said Josoph-Westwood-and-Robert Baillie, Her special licence-that
we, the said Joseph Westwood and Robert Baillie, our executors, adminis-
trators, and assigns, or such others as we, the said Joseph Westwood and
Robert Baillie, our 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 "A METHOD OF
PROTECTING IRON SHIPS AND VESSELS FROM CORROSION AND ANIMAL AND VEGETABLE
MATTERS," upon the condition (amongst others) that we, the said Joseph
Westwood and Robert Baillie, or one of us, by an instrument in writing under
our hands and seals, or under the hand and seal of one of us, should par-
ticularly describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be 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 we, the said Joseph Westwood and Robert Baillie,
do hereby declare the nature of our 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:
Our Invention consists in the method of applying preservative compositions
both internally and externally to the plates and other parts of which iron ships
and vessels are constructed. Asphalte and bituminous varnishes are known
as forming good preservative coatings, but it has hitherto been found im-
practicable to cause them to adhere to the metal. Now, our Invention consists
in first laying on a layer or coating of black varnish, and then a layer of
asphalte, or a coating of boiled oil and black lead and black varnish, or of

page_text: black varnish, asphalte, and spirits of naptha. We do not consider it neces-
sary to specify any particular proportions of the materials used in preparing
the compositions before mentioned, as they may be very considerably varied
without affecting the results obtained from their use. In some cases we com-
bine a portion of white arsenic with the compositions used for the outside of
iron ships and vessels, in order to prevent the adhesion of animal matters, &c.
to the plates.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that what we claim as our
Invention is, the method herein-before described of applying preservative
compositions both internally and externally to the plates and other parts of
which iron ships and vessels are constructed.
In witness whereof, I, the said Robert Baillie, for myself and on behalf
of the said Joseph Westwood, have hereunto set my hand and seal,
this Fifth day of March, One thousand eight hundred and fifty-five.
ROBERT BAILLIE. (L8.)