CERTAIN IMPROVEMENTS IN ORNAMENTING OF CHINA, GLASS, AND EARTHENWARE
Year: 1835

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GODWIN
EMBREY, of Lane Delph, in the Parish of Stoke-upon-Trent, in the County of
Stafford, Potter, send greeting.
WHEREAS His most Excellent Majesty William the Fourth, by His
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourteenth day of April, in the fifth year of His reign,
did, for Himself, His heirs and successors, give and grant unto me His
special license, that I, the said Godwin Embrey, my exors, admors, and
assigns, or such others as I, the said Godwin Embrey, my exors, admors, or
assigns, should at any time agree with,and no others, from time to time and at
all times during the term of years therein expressed, should and lawfully
might make, use, exercise, and vend, within England and Wales and the
Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN
ORNAMENTING OF CHINA, GLASS, AND EARTHENWARE;" in which said Letters
Patent there is contained a proviso, obliging me, the said Godwin Embrey,
by an instrument in writing under my hand and seal, particularly to describe
and ascertain the nature of my said Invention, and in what manner the same
is to be performed, and to cause the same to be enrolled in His Majesty's
High Court of Chancery within six calendar months next immediately after
the date of the said recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Godwin Embrey, do hereby declare that the nature of the said Invention,
and the manner in which it is to be performed, is described and ascertained as
follows, that is to say:-
First process, composition herein-after referred to as No. 1. I dissolve six
ounces of gold and six grains of grain tin in one pound of uxtro-mutriatic acid;
I then in another vessel put two pounds of balsam of sulphur and one pound
of spirit of turpentine, which I mix thoroughly over a slow fire; I then unite
the two preparations, dropping the first into the latter gradually, and stirring
so as to produce a complete admixture; I then add stiff boiled oil, gum, and
turpentine, till the whole has become of a proper consistence for working, or
other proportions of the above ingredients may answer the same purpose with
or without the addition of other substances. I take a plate of steel, copper,
wood, or other substance, whereon is engraved, described, embossed, or
wrought the pattern or design which is intended to be transferred to the
china, glass, or earthenware to be ornamented, and with the aid of the appli-
cation of a gentle heat, I spread thereon a portion of the composition No. 1; I
then scrape, wipe off, or otherwise remove the superfluous composition from
such part of the surface of plate as is not occupied by the pattern or design,
and having covered the plate with a sheet of paper of the description generally
used by printers of china and earthenware, or any other substance or medium
capable of receiving the impression, I pass the same between two revolving
barrels, or adopt any other known method of transferring the composition
from the plate to the paper or other medium. When the composition is
become moderately dry, I separate the paper or other medium from the plate,
and after cutting away from the former such parts as are not occupied by the
pattern or design, I spread it on the surface of china, glass, or earthenware to
be ornamented, and by the judicious application of pressure or rubbing, I
again transfer the composition to the china, glass, or eathenware, from which
I again remove the paper or other medium; I then dust the piece of glass,
china, or earthenware with gold precipitated or pulverised with the aid of an
admixture of mercury, and to which is added a preparation of borax, lead,
and other substances commonly used by potters, and called flux, in such pro-
portions as the degree of heat to which the piece of china, glass, or earthen-
ware may be intended to be subjected to in the kiln may require. The china,
glass, or earthenware is then gently rubbed with cotton, wool, silk, or other
soft substance to clear of any superfluous gold which may have adhered to it,
and is then put into the oven or kiln and fired in the usual way, and
afterwards burnised.

page_text: My second process is particularly applicable to designs strongly or deeply
engraved, or described on the plate, and is the same in every particular
with that before described, save that to the composition No. 1 I add nitrate of
mercury in greater or less proportions according to the greater or less depth
or boldness of the engraving on the plate, since by the evaperation thereof on
the application of heat the body of the composition is reduced and a saving
of gold is affected.
Third process, composition herein-after referred to as No. 2. I take of
gold six ounces, which I precipitate out of nitro-muriatic acid, or pulverise by
the method before mentioned, and mix with oils, gum, and turpentine in
manner before described; or the common preparation of gold used by gilders
of china and earthenware, with the addition of gum or other stiffening sub-
stance, until rendered sufficiently tenacious to admit of an impression being
taken from an engraving, would answer the purpose as well. In using the
last-mentioned composition No. 2, I adopt precisely the same process as that
adopted with respect to the composition No. 1, and afterwards apply the
pulverized or precipitated gold to the design when transferred to the china,
glass, or earthenware in like manner.
My fourth process is the same as my third process, with the addition of
nitrate of mercury, under the circumstances, in the proportions, and with the
intent mentioned in my second process herein-before described.
And I do hereby declare, that I do not claim the exclusive use, exercise,
benefit, and advantage of the said processes, or any of them, so far as respects
the engraving, printing, or transferring of the above-mentioned patterns or
designs, save so far as respects the printing and transferring of patterns or
designs taken or formed with the composition No. 1 herein-before referred to,
or with the composition No. 2, when the gum or other stiffening matter is
added thereto, nor the preparation of the composition No. 2, save as respects
the addition of such gum or stiffening matter, nor the additions of quicksilver
to the said compositions Nos. 1 and 2, as mentioned in my second and fourth
processes, nor do I claim the Invention of the process of dusting with precipi-
tated or pulverized gold designs on china, glass, or earthenware, in any process
or processes wherein gold or a preparation of gold shall not be combined with
the composition or matter in which such designs shall be embodied; but I do
claim the Invention of so much of the composition No. 1 as consists in the
addition of such of the ingredients therein contained as distinguish the same
from the composition commonly used by potters, and called by them gold
lustre, the mode of preparing which is well known; and also the Invention of
the application of the said composition No. 1, and also of the composition

page_text: No. 2, when gum or other stiffening matter is added thereto in the printing
and transferring of designs in manner aforesaid; and I do also claim the
Invention of combining or uniting the application of gold in a precipitated or
pulverised state to patterns or designs produced by the process of printing and
transferred to or impressed on china, glass, or earthenware, where such patterns
or designs shall be formed in a composition containing gold or a preparation
of gold.
In witness whereof, I, the said Godwin Embrey, have hereunto set my
hand and seal, the Twelfth day of October, in the year of our Lord
One thousand eight hundred and thirty-five.
GODWIN (L.s.) EMBREY.
Signed, sealed, and delivered by the within-named
Godwin Embrey, (being first duly stamped,) in
the presence of
WARD, Extra.
J. W. WARD.
W. SHENTON, Clerk to Mess" Ward, Sol",
Newcastle, Staffo
AND BE IT REMEMBERED, that on the Twelfth day of October, in
the
year of our Lord 1835, the aforesaid Godwin Embrey, 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 stamped according
to the tenor of the Statute made for that purpose.
Inrolled the Thirteenth day of October, in the year of our Lord One
thousand eight hundred and thirty-five.