A PREPARATION OR CEMENT FOR THE PURPOSE OF PRESERVING HIS MAJESTY'S AND OTHERS' SHIPS AND VESSELLS FROM WORMS, &C., BY THE PAYING OF THEIR SIDES AND BOTTOMS, AND FOR VARIOUS PURPOSES IN AGRI- CULTURE AND COMMERCE, FOR PRESERVING BUILDINGS, &C. MADE OF WOOD FROM THE WEATHER
Year: 1771

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WORTII, of Diss, in the County of Norfolk, Chemist, send greeting.
WHEREAS His present most Excellent Majesty King George the Third,
by His Letters Patent, under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-eighth day of May, in the eleventh year of His
reign, did give and grant unto me, the said John Worth, His especial licence,
that I, the said John Worth, during the term of years therein expressed,
should and lawfully might use, exercise, and vend, within that part of His
Kingdom of Great Britain called England, His Dominion of Wales, and Town
of Berwick-upon-Tweed, and also in all His said Majesty's Colonies and Planta-
tions abroad, my Invention of "A PREPARATION OR CEMENT FOR THE PURPOSE OF
PRESERVING HIS MAJESTY'S AND OTHERS' SHIPS AND VESSELLS FROM WORMS, &C., BY
THE PAYING OF THEIR SIDES AND BOTTOMS, AND FOR VARIOUS PURPOSES IN AGRI-
CULTURE AND COMMERCE, FOR PRESERVING BUILDINGS, &C. MADE OF WOOD FROM THE
WEATHER;" in which said Letters Patent there is contained a proviso obliging
me, the said John Worth, under any hand and seal, to cause a particular
description of the nature of the said Invention, and in what manner the same
is to be performed, to be inrolled in His Majesty's High Court of Chancery,
within a certain time in the said proviso mentioned, and not yet expired, as in
and by the said Letters Patent (relation being thereunto had) may more fully
and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Worth, do hereby declare that my said Invention of a Preparation or
Cement for the Purpose of Preserving His Majesty's and others' Ships and

page_text: Vessells from Worms, &c., by the Paying of their Sides and Bottoms, and
for various Purposes in Agriculture and Commerce, for Preserving Buildings,
&c., made of Wood, from the Weather, is to be performed in the following
manner (that is to say):
Take of powdered or small pieces of rosin, fourteen pounds; sand sifted
and washed clean from dirt or loam, twenty-eight pounds; red lead, three
pounds and an half; oil, one pound and three quarters. Melt the rosin over
a moderate fire; put the sand and lead in by degrees, then put in your oil;
when they are boiling, keep them constantly stirring till cold, that you may
have an uniform mass. Take of this mass or cement such quantity as may
suit your purpose, broke into small pieces, and to every twelve pounds put in
a bare half pound of oil; when melted, apply it to what you design, either by
pouring it on or using it with a brush while boiling hot; 'tis to be observed
that your oil to be added to the cement must be of that sort which chemists
call fat oil, and that more or less must be used as you want the composition to
be harder or softer; this will be of a reddish colour. For the white and
green I use ceruss and verdigrease, in the same proportion as the minium or
red lead.
In witness whereof, I have hereunto set my hand and seal, the Twenty-
fourth day of September, in the year of our Lord One thousand seven