RUNNING OR LAYING PAINT, MIXED AND PRE- PARED WITH OIL AND OTHER MATERIALS, COMMONLY CALLED OIL COLOURS, ONE UPON ANOTHER, IN THIN LAYERS, UPON CANVAS, WOOD, IRON, STONE, OR ANY SUBSTANCE OF THAT KIND, IN A WAY NOT AS YET KNOWN AND IN PRACTICE
Year: 1790

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, We, WILLIAM
ROBERTS, of High Street, in the City of Bristol, Linen Draper, and WILLIAM
DIGHT, of the same place, Painter, send greeting.
WHEREAS our most Gracious Sovereign George the Third, by the grace of
God of Great Britain, France, and Ireland King, Defender of the Faith, and
so forth, hath, by His Letters Patent, bearing date at Westminster, the Eleventh
day of May, in the Thirtieth year of His reign, given and granted to us, the
said William Roberts and William Dight, our exors, admors, and assigns,
especial licence, full power, sole privelege and authority, by ourselves or by our
deputy or deputies, servants or agents, or such others as we shall at any
time agree with, and no others, from time to time and at all times thereafter,
during the term of years therein expressed, to make, use, exercise, and vend
our Invention, Art, or Mystery of "RUNNING OR LAYING PAINT, MIXED AND PRE-
PARED WITH OIL AND OTHER MATERIALS, COMMONLY CALLED OIL COLOURS, ONE UPON
ANOTHER, IN THIN LAYERS, UPON CANVAS, WOOD, IRON, STONE, OR ANY SUBSTANCE OF
THAT KIND, IN A WAY NOT AS YET KNOWN AND IN PRACTICE," within that part of
Great Britain called England, the Dominion of Wales, the British Isles, the
Town of Berwick-upon-Tweed, and also in all His Majestie's Colonies and
Plantations abroad; and in the said Letters Patent is contained a provisoe or

page_text: condition for making the same void, if we, the said William Roberts and
William Dight, shall not particularly describe and ascertain the nature of our
said Invention, and in what manner the same is to be performed, by an instru-
ment in writing under our hands and seals, and cause the same to be enrolled
in the High Court of Chancery within one calendar month next and imme-
diately after the date of the said Letters Patent.
NOW, we, the said William Roberts and William Dight, in compliance with
such condition in the said Letters Patent, do hereby declare that such our
Invention and the nature of the same is the running or laying paint, mixed
and prepared with oil and other materials, commonly called oil colours, upon
canvas, wood, iron, stone, or other substances, in such a way as to preserve
their transparency; and we do hereby further declare, that the manner in
which the said Art or Invention is to be performed, and which we use and
observe in the performance thereof, is as follows, that is to say:-
We prepare the canvas, wood, iron, stone, or other substance upon which
the painting or imitation is intended to be made, with a ground of any colour
which we wish to be most prevalent or shew itself most, which ground is made
with colours prepared in the common way for hard substances, and for softer
substances intended to be used as table covers or to be folded and therefore
required to be more pliable and elastic, with a varnish made with india rubber
or gum lastic dissolved in spirits of wine. After the above ground or coat of
colour is dry or nearly so, we vein, paint, or spot it with a pencil, or by
drops, agreeable to the pattern or figure we wish to imitate or represent, or
according to our fancy, with colours mixt rather thick with olivar or oil varnish.
Immediately before those colours are dry, we add any other colours we fancy,
made as transparent as we can, and mixt up with thin meggellup, a substance
well known to limners, being a mixture of turpentine, gum mastick, and
linseed oil. Whilst the colours and oil remain wet, we blow them with the
breath or with a pipe from an engine or pair of bellows, which causes them to
incorporate, but they still remain transparent or visible one thro' the other,
which the use of a pencil or other hard substance would prevent their doing,
as it would render them opake. By the above means the various shades and
tints of fossils, shells, stone, and other things, as fancy directs, are imitated. As
soon as the above is dry, we varnish it over with the different sorts of varnish,
either soft or hard, according to the use the imitation is intended for, which
dry, for common uses the whole work is complete; but if intended to be used for
chimney pieces or such like uses, then we polish and varnish the work re-
peatedly in like manner as is done for coach pannels, till the work attains such
perfection and hardness as we think will render it durable. The colours we

page_text: use in the above process are the same as are used by painters in oil colours in
general, observing always to prefer those which in their own nature are most
transparent.
In witness whereof, we have hereunto set our hands and seals, this
Twenty-ninth day of May, in the year of our Lord One thousand seven
hundred and ninety.
AND BE IT REMEMBERED, that on the Thirty-first day of May, in
the year of our Lord 1790, the aforesaid William Dight came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified in form above
written. And on the First day of June, in the year of our Lord 1790, the
aforesaid William Roberts came before our said Lord the King in His
Chancery, and acknowledged the Specification aforesaid, and all and every
thing therein contained and specified in form above written. And also the
Specification aforesaid was stampt according to the tenor of the Statutes made
for that purpose.
Inrolled the Second day of June, in the year of our Lord One thousand