IMPROVEMENTS IN THE MANUFACTURE OF PAINT FOR THE PROTECTION OF IRON AND OTHER METALS FROM THE DESTRUCTIVE INFLUENCE OF SEA WATER, AND FOR THE PREVENTION OF FOULING
Year: 1868

page_text: LETTERS PATENT to Donald Robert Macgregor and Peter Taysen,
both Merchants, of Leith, in the County of Edinburgh, for the
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF PAINT FOR THE
PROTECTION OF IRON AND OTHER METALS FROM THE DESTRUCTIVE INFLUENCE
OF SEA WATER, AND FOR THE PREVENTION OF FOULING."-A communi-
cation from abroad by Hans Wilhelm Matzen, of Sonderborg,
Schleswig, Engineer.
PROVISIONAL SPECIFICATION left by the said Donald Robert
Macgregor and Peter Taysen at the Office of the Commissioners
of Patents, with their Petition, on the 5th May 1868.
We, DONALD ROBERT MACGREGOR and PETER TAYSEN, both Mer-
chants, of Leith, in the County of Edinburgh, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF
PAINT FOR THE PROTECTION OF IRON AND OTHER METALS FROM THE DESTRUCTIVE

page_text: INFLUENCE OF SEA WATER, AND FOR THE PREVENTION OF FOULING," to be as
follows:-
For this purpose we take-
30 parts of quicksilver (mercury),
7
55
"
thick turpentine,
red lead,
and so much boiled linseed oil as is needed to make a thickish paint.
The mercury must be thoroughly amalgamated with the thick turpentine
by grinding or rubbing into an even thickish mass, and this mass must
then again, by grinding or rubbing, be mixed with the red lead and some
boiled linseed oil, in such way that the whole still forms an even thickish
substance. This for the manufacture of the paint. When the same is
to be used so much boiled linseed oil is to be added as just to make the
paint workable, i.e., the quantity of the linseed oil must be limited to
the smallest quantity possible. In damp weather some finely ground
manganese might be added to the paint. In order to cause this paint
to adhere more firmly the surface may be prepared with a coating of
oxide of iron paint.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Donald Robert Macgregor and Peter, Taysen in ?
the Great Seal Patent Office on the 5th November 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, DONALD
ROBERT MACGREGOR and PETER TAYSEN, both Merchants, of Leith,
in the County of Edinburgh, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of May, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Donald Robert Macgregor and Peter
Taysen, Her special licence that we, the said Donald Robert Macgregor,
and Peter Taysen, our executors, administrators, and assigns, or such
others as we, the said Donald Robert Macgregor and Peter Taysen,
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,

page_text: What we claim is, the manufacture of paint for the protection of iron
and other metals from the destructive influence of sea water, and for the
prevention of fouling by combining quicksilver, turpentine, and red lead
as above described.
In witness whereof, we, the said Donald Robert Macgregor and
Peter Taysen, have hereunto set hand and seal, this Second
day of November, in the year of our Lord One thousand eight
hundred and sixty-eight.
DONALD R. MACGREGOR. (L.S.)
PETER TAYSEN.
(L.S.)