MAKING BRASS WITH COPPER AND SPELTER
Year: 1781

page_text: 15
.1.
EMERSON'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
EMERSON, of the Parish of Bitton, in the County of Gloucester, Brass and
Spelter Maker, send greeting.
W. せん
2
WHEREAS His most Excellent Majesty King George the Third, by His
Royal Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Thirteenth, day of July, in the twenty-first year of His
reign,, upon the Petition of me, the said James Emerson, did give and
grant, unto me, the said, James Emerson, my exccutors, adiñors, and
assigns, His especial licence, full power, sole priviledge and authority,
that I, the said. James Emerson, my executors, admors, and assigns, and
every of them, by myself and themselves, or by my and their deputy and
deputies, servants or agents, or such others as. I, the said James Emerson, my
executors, admors, or assigns, should agree with, and no others, from time to
time and at all times thereafter during the term of years therein expressed,
should and lawfully might make, 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, an Invention of "MAKING BRASS WITH
COPPER AND SPELTER," in such manner as to me, the said James Emerson, my
executors, administrators, or assigns, or any of them, should in his or their
discretions, seem meet, and that I, the said James Emerson, my executors,
administrators, and assigns, should and lawfully might have and enjoy the
whole profit, benefit, commodity, and advantage, from time to time coming,
growing, accruing, and arising, by reason of the said Invention, for and during
the term of years therein mentioned; in which said recited Letters Patent is
יד

page_text: contained a proviso obliging me, the said James Emerson, by an instrument
in writing under my hand and seal, to cause a particular description of the
nature of my said Invention, and in what manner the same is to be per-
formed, to be inrolled in His Majesty's High Court of Chancery within four
calendar months next and immediately after the date of the said recited
Letters Patent, as in and by the same (relation being thereunto had) may
more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
James Emerson, do hereby declare that my said Invention of Making Brass
with Copper and Spelter is performed in the manner following (that is to
say):
I take spelter in ingots, and melt them down in an iron boiler. I then run
the melted spelter through a ladle with holes in it, fixed over a tub of cold
water, by which means the spelter is granulated or sholed, and it is then fit
for making brass on any plan. I then mix fifty-four pounds of copper shot,
about ten pounds of calcined calamine ground fine, and about one bushel of
ground charcoal together. I then put into a casting pot a handful of this
mixture, and upon it I put three pounds of the sholed spelter. I then fill up
the pot with the said mixture of copper shot, calcined calamine, and ground
charcoal. In the same manner I fill eight other pots, so that fifty-four pounds
of copper shot, twenty-seven pounds of sholed spelter, about ten pounds of
calcined calamine, and about one bushel of ground charcoal, make a charge
for one furnace, containing nine pots, for making brass on my plan. My chief
reason for using this small quantity of calamine in the process is more for con-
fining the spelter by its weight, than for the sake of the increase arising from
it; and I have frequently omitted the calamine in the process. The pots
being so filled, they are respectively put into a furnace, and about twelve hour's
completes the process. And from this charge I have, on an average, eighty-
two pounds of pure fine brass, fit for making ingots or casting plates, for
making brass battery wire or brass latten; and my brass so made, as afore-
said, is of superior quality to any brass made from copper and calamine.
In witness whereof, I, the said James Emerson, have hereunto set my
hand and seal, this Twenty-seventh day of October,. in the twenty-
seventh year of the reign of our Sovereign Lord George the Third,
by the grace of God of Great Britain, France, and Ireland. King,
Defender of the Faith, and so forth, and in the year of our Lord One
thousand seven hundred and eighty-one.
JAMES EMERSON. (L.S.)

page_text: AND BE IT REMEMBRED, that on the same Twenty-seventh day of
October, in the year above mentioned, the aforesaid James Emerson 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 Statute made in the sixth year of the reign of
the late King William and Queen Mary of England, and so forth.
Tavelled the Thirtieth day of October in the year last above mentioned.