MAKING VERDIGRIS IN LUMPS OR POWDER WITH INGREDIENTS THE PRODUCE OF GREAT BRITAIN
Year: 1802

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DANIEL
CRAANEN, of Cullum Street, Fenchurch Street, in the City of London,
Merchant, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by
His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, on or about the Thirtieth day of November, in the forty-
third year of His said Majesty's reign, did give and grant unto me, the
said Daniel Craanen, His especial licence, full power, sole privilege and
authority, that I, the said Daniel Craanen, my executors, administrators, and
assigns, and every of them, by himself and themselves, or by his and their
deputy or deputies, servants or agents, or such others as I, the said Daniel
Craanen, my executors, administrators, or assigns, should at any time agree
with from time to time during the term of years therein mentioned, should
and lawfully might make, use, exercise, and vend my Invention of "MAKING
VERDIGRIS IN LUMPS OR POWDER WITH INGREDIENTS THE PRODUCE OF GREAT
BRITAIN," within England, Wales, and the Town of Berwick-upon-Tweed, in
such manner as to me, the said Daniel Craanen, my executors, administrators,
or assigns, shall seem meet; in which said Letters Patent is contained a proviso

page_text: whereby it is declared that if I, the said Daniel Craanen, should not par-
ticularly describe and ascertain the nature of my said Invention, and the
manner in which the same is to be made, by an instrument in writing
under my hand and seal, and cause the same to be enrolled in the High
Court of Chancery within six calendar months next and immediately after
the date of the said Letters Patent, that then the same should cease and
become void.
NOW KNOW YE, that in compliance with the said proviso I, the said
Daniel Craanen, do hereby declare that my Invention is described in manner
following (that is to say).:-
Upon any given quantity take one part of the very best sal amoniac, one
quarter part of oil of vitriol, one half part of aqua fortis, one quarter part of
acid muriatic, and twelve parts of cold spring water, which, when thoroughly
mixed together, is put into sheets of copper of any size, turned up at the edges
about half an inch all the way round to prevent the mixture from running off.
The mixture is then stirred well up every two or three hours until the same is
discovered to be of a green or bluish cast or body. The mixture must then
remain a few hours until it is settled and the water at top appears perfectly
clear, which will happen sooner or later, it depending upon the temparature of
the atmosphere. The water must then be carefully poured off, leaving the
sediment at the bottom; it must be then put into any vessel of sufficient size,
and if it is thoroughly prepared the paint will bear a washing to free it from
dirt, &c., without mixing with the water, after which washing the water must
be poured from the paint. The paint may then be taken and prepared in
lumps by putting the same into moulds of any size that may be convenient,
observing afterwards to place the same in a mild warm room. When it is quite
dry it may be ground into power with ease, or remain in the lumps, as may be
convenient; it is then fit for use.
In witness whereof, I, the said Daniel Craanen, have hereunto set my
hand and seal, this Twenty-eighth day of May, in the year of our Lord
One thousand eight hundred and three.

page_text: AND BE IT REMEMBERED, that on the same Twenty-eighth day of May,
in the year above mentioned, the aforesaid Daniel Craanen came before our
Lord the King in His Chancery, and acknowledged the Specification afore
said, and all and every thing therein contained, in form above written. And
also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.
Inrolled the same Twenty-eighth day of May, in the year above written.
Inrolled the same Twenty-eighth day of May, in the year above written.