IMPROVEMENT IN THE ART OF SMELTING COPPER OBE
Year: 1813

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, J, JOHN
LEWIS, late of Llanelly, in the County of Carmarthen, but now of Penclawild,
in the county of Glamorgan, Assayer of Metals, send greeting.
WHEREAS His most Excellent Majesty King George the Third did,
by His Letters Patent under the Great Seal of the United Kingdom of
Great Britain. and Ireland, bearing date at Westminster, the Twenty-third
day of July, in the fifty-third year of His reign, give and grant unto me,
the said John Lewis, my exors, adññors, and assigns, His especial licence,
full power, sole privilege and authority, that I, the said John Lewis, my
exors, admors, and assigns, should and lawfully might, during the term of
years therein. mentioned, make, use, exercise, and vend, within England,
Wales, and the Town of Berwick-upon-Tweed, my Invention of
IMPROVEMENT IN THE ART OF SMELTING COPPER OBE;" in which said Letters
Patent there is contained a proviso, that if I, the said John Lewis, shall
not particularly describe and ascertain the nature of my said Invention, and
in what manner the same is to be performed, by an instrument in writing
under my hand and seal, and cause the same to be inrolled in His Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said Letters Patent, that then the said Letters Patent,
"AN

page_text: and all liberties and advantages whatsoever thereby granted, shall utterly
cease, determine, and become void, 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
John Lewis, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawings hereunto annexed, and the following
references or description thereof (that is to say) :-
My Invention of an Improvement in the Art of Smelting Copper Ore consists
in building my ore and metal furnaces between two calciners, and elevating the
same above the said furnaces. Secondly, I cause the ore and metal, when cal-
cined, to be conveyed red hot through iron pipes direct to the furnace. Lastly,
I lengthen the run of the metal from the furnace to the metal pits. I further
declare that the Drawing annexed represents the ground plan and section of
the said calciners and furnaces with a front view thereof, and that the com-
ponent parts are referred to as under. A, A, two calciners elevated above the
furnace; B, the furnace; C, the furnace stack; D, the side door of furnace;
E, the front door of furnace; F, the furnace tap hole; G, the furnace grate;
H, the metal pit; I, the trough or rim from the furnace to the metal pit;
K, three flues to calciner and furnace stacks; L, the furnace charge hole;
.M 2, the calciner stacks; N 8, the calciner doors; O 4, pillars, one between
two calciner doors; P 2, the calciner grates, which I make smaller than com-
monly used; Q 3, the ash holes; R 2, the archways under the calciners;
.S, the stage for calciner man; T 4, the calciner charge holes; U 4, the iron
pipes for conveying the ore or metal, when calcined, into the furnace;
V 3, passages to side door tap, and ash hole to calciners and furnace; W 3,
the calciner and furnace feeding holes.
And I also declare that the following advantages are to be derived from my
said Invention.
First, the same work may be done in less time and with fewer furnaces.
Secondly, there is no waste of ore or metal from removal.
Thirdly, there is no explosion from the metal pit to injure the building.
Lastly, there is a considerable saving of fuel, labour, and materials.
In witness whereof, 1, the said John Lewis, have hereunto set my
hand and seal, this Thirty-first day of December, in the year of our
Lord One thousand eight hundred and thirteen.
J. LEWIS. (L.S.)

page_text: AND BE IT REMEMBERED, that on the Thirty-first day of December,
in the year of our Lord 1813, the aforesaid John Lewis 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 for that purpose.
Inrolled the Eighth day of January, in the year of our Lord One thou-
sand eight hundred and fourteen.