IMPROVEMENTS IN COMPOSITION FOR COATING OR COVERING SHIPS."
Year: 1864

page_text: LETTERS PATENT to Henry Frederick M Killop, of Belvedere, in the
County of Kent, Captain in the Royal Navy, for the Invention of
"IMPROVEMENTS IN COMPOSITION FOR COATING OR COVERING SHIPS."
PROVISIONAL SPECIFICATION left by the said Henry Frederick McKillop
at the Office of the Commissioners of Patents, with his Petition, on the
19th December 1864.
I, HENRY FREDERICK MCKILLOP, of Belvedere, in the County of Kent,
Captain in the Royal Navy, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN COMPOSITIONS FOR COATING OR COVERING SHIPS," to be
as follows:-
This Invention has for its object improvements in compositions for coating
or covering ships, and is chiefly applicable for coating ships of iron. In
making compositions for this purpose, I grind together lime (by preference
pure shell lime), sulphur, and protoxide of mercury, and mix with these
coarse brown sugar and crude petroleum, or linseed or other suitable oil.
The proportions in which I prefer to combine these materials are as
follows-1 cwt. of shell lime, cwt. of sulphur, 14 lbs. of protoxide of
mercury, cwt. of coarse brown sugar, 10 gallons of petroleum, or other
suitable oil.
I prefer slightly to slake the lime before grinding it with the sulphur and
protoxide of mercury, and before mixing the sugar and oil with these

page_text: ingredients the sugar and oil should be heated; the mixture thus produced
will be of the consistency of a thin cement, and should be applied to the ship
whilst hot, or the mixture may be allowed to cool, and be again heated before
applving it to the ship.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Frederick M°Killop in the Great Seal Patent Office
on the 19th June 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
FREDERICK MCKILLOP, of Belvedere, in the County of Kent, Captain in the
Royal Navy, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of December, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Henry Frederick McKillop, Her special licence that I, the said
Henry Frederick M Killop, my executors, administrators, and assigns, or such
others as I, the said Henry Frederick McKillop, 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 POR COATING OR COVERING SHIPS,"
upon the condition (amongst others) that I, the said Henry Frederick
McKillop, my executors or administrators, by an instrument in writing under
my, 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 within six calendar months next and immediately after the date of the
said Letters Patent.
"
NOW KNOW. YE, that I, the said Henry Frederick McKillop, do hereby
declare the nature of the 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 has for its object improvements in compositions for coating
or covering ships, and is chiefly applicable for coating ships of iron. In
making compositions for this purpose, I grind together lime (by preference

page_text: pure shell lime), sulphur, and protoxide of mercury, and mix with these
coarse brown sugar and crude petroleum, or linseed or other suitable oil.
The proportions in which I prefer to combine these materials are as
follows: 1 cwt. of shell lime, cwt. of sulphur, 14 lbs. of protoxide of
mercury, or crude mercury may be employed, cwt. of coarse brown sugar,
10 gallons of petroleum, or other suitable oil, preferring 5 gallons of petroleum
oil, and 5 gallons of melted tallow in place of all petroleum oil.
The sulphur is first heated to about 240° Fahrenheit, then add the oil, and
stir it well in together with the sugar, the whole of the materials are then
added and passed through a mixing mill. I prefer slightly to slake the lime
before grinding it. The mixture thus produced will be of the consistency of
a thin cement and should be applied to the ship whilst hot, or the mixture
may be allowed to cool and be again heated before applying it to the ship.
In witness whereof, I, the said Henry Frederick McKillop, have here-
unto set my hand and seal, this Nineteenth day of June, in the year
of our Lord One thousand eight hundred and sixty-five.
H. F. M°KILLOP. (L.S.)