A METHOD OF PRO- TECTING THE OUTER SURFACE OR EXTERNAL PARTS OF IRON SHIPS FROM CORROSION OR FROM ANIMAL OR VEGETABLE MATTER
Year: 1867

page_text: LETTERS PATENT to Joseph Westwood, of Tredegar House, Bow, in
the County of Middlesex, Engineer, and Robert Baillie, of Leyton, in
the County of Essex, Engineer, for the Invention of "A METHOD OF PRO-
TECTING THE OUTER SURFACE OR EXTERNAL PARTS OF IRON SHIPS FROM
CORROSION OR FROM ANIMAL OR VEGETABLE MATTER."
Sealed the 28th May 1867, and dated the 15th March 1867.
PROVISIONAL SPECIFICATION left by the said Joseph Westwood and
John Baillie at the Office of the Commissioners of Patents, with their
Petition, on the 15th March 1867.
We, JOSEPH WESTWOOD, of Tredegar House, Bow, in the County of
Middlesex, Engineer, and ROBERT BAILLIE, of Leyton, in the County of
Essex, Engineer, do hereby declare the nature of the said Invention for
"A METHOD OF PROTECTING THE OUTER SURFACE OR EXTERNAL PARTS OF IRON
SHIPS FROM CORROSION OR FROM ANIMAL OR VEGETABLE MATTER," to be as
follows:-
Our Invention has for its object the protection of the outer surface or
external parts of iron ships by means of asphalte or other substance or com
position, and consists in the method herein-after described of applying the
same to such purpose.
Flat bars of wood or iron are fixed to the outside of the iron ship at
suitable distances apart; the outer surfaces are then covered over with black.

page_text: varnish, and the said bars of wood or iron are covered with a sheathing of
wood, thereby leaving a space between such sheathing and the outer surface
of the iron ship, which forms a cell or inclosure, into which is poured asphalte,
Portland cement, Roman cement, or composition made of pitch or bituminous
substance, either with or without earthy matter. The wooden sheathing may
be covered with copper if required, galvanic action between the same and
the iron of the ship being prevented by the interposition of the asphalte or
bituminous substance between the two metals. When copper is not used the
wooden sheathing is or may be covered with black varnish or other suitable
protecting material.
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 13th August 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
WESTWOOD, of Tredegar House, Bow, in the County of Middlesex, Engineer,
and ROBERT BAILLIE, of Leyton, in the County of Essex, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of March, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign did, for Herself, Her heirs and successors, give and grant unto us,
the said Joseph 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 PRO-
TECTING THE OUTER SURFACE OR EXTERNAL PARTS OF IRON SHIPS FROM CORROSION
OR FROM ANIMAL OR VEGETABLE MATTER," upon the condition (amongst others)
that we, the said Joseph Westwood and Robert Baillie, our executors
or administrators, by an instrument in writing under our, or their, or one
of their hands and seals, should particularly 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

page_text: 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 ascer-
tained in and by the following statement, reference being had to the Drawings
hereunto annexed, and to the letters and figures marked thereon (that is
to say) -
Our Invention of "A Method of Protecting the. Outer Surface or External
Parts of Iron Ships from Corrosion or from Animal or Vegetable Matter"
has for its object the protection of the same by means of asphalte or other
şubstance or composition, and consists in the method herein-after described of
applying the same to such purpose.
Flat bars of wood or iron are fixed to the outside of the iron ship at
suitable distances apart; the outer surfaces are then covered over with black
varnish, and the said bars of wood or iron are covered with a sheathing of
wood, thereby leaving a space between such sheathing and the outer surface
of the iron ship which forms a cell or inclosure into which is poured asphalte,
Portland cement, Roman cement, or composition made of pitch or bituminous
substance, either with or without earthy matter. The wooden sheathing may
be covered with copper if required, galvanic action between the same and
the iron being prevented by the interposition of the asphalte or bituminous
substance between the two metals. When copper is not used the wooden
sheathing is or may be covered with black varnish or other suitable protecting
material.
Having thus stated the nature of the said Invention, we will proceed to
describe more particularly in what manner the same is to be performed by
reference to the accompanying Drawings, in which is represented the mode of
protecting iron ships above referred to.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a portion of the side of an iron ship; and Fig. 2 is a
transverse vertical section of the same.
A, A, are the iron plates or skin, fastened as shown to angle irons B, B,
forming part of the frame of the ship; C, C, are flat bars of iron fixed to the
plates A, A, at suitable distances apart; the outer surfaces of these bars and
of the plates between them are covered with black varnish; D is a sheathing
of wood fixed to the bars C, C, thereby leaving a space between the sheathing
and the outer plates A, A, or skin of the ship; by this means is formed a cell

page_text: or inclosure into which is poured asphalte, Portland cement, Roman cement,
or composition made of pitch or bituminous substance, either with or without
earthy matter, as represented at E.: The sheathing of wood D may be covered
with a sheathing of copper, F or with a coating of black varnish; G is a lining
of felt between the two sheathings of wood and copper.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, we hereby declare that what we claim
as of our Invention is, the formation of cells or inclosures between the iron
plates or skin of iron ships and the sheathing of wood in the manner
described, and the insertion therein of asphalte, cement, or composition, for the
purpose described.
In witness whereof, we, the said Joseph Westwood and Robert Baillie,
have hereunto set our hands and seals, this Twelfth day of August, in
the year of our Lord One thousand eight hundred and sixty-seven.
WESTWOOD
J. WESTWOOD. (..)
R. BAILLIE.
(L.B.)