Ar IMPROVEMENT IN THE PROCESS OF MANUFACTURING IRON;
Year: 1824

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPIT
LUCKCOCK, of Round Cottage, Edgbaston, near Birmingham, in the County
of Warwick, Gentleman, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Fifteenth day of May, 1824, in the fifth year of His
reign, did, for Himself, His heirs and successors, give and grant unto me, the
said Joseph Luckcock, His especial licence that I, the said Joseph Luckcock,
my exors, admors, and assigns, or such others as I, the said Joseph
Luckcock, my exors, adiñňors, and assigns, should at any time agree with, and
no others, from time to time and at all times during the term of years therein
mentioned, should and lawfully might make, use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, my Invention of "Ar
IMPROVEMENT IN THE PROCESS OF MANUFACTURING IRON;" in which said Letters
Patent there is contained a proviso obliging me, the said Joseph Luckcock,
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 inrolled in His Majesty's.
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, reference being
thereunto had, will more fully and at largo appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Joseph Luckcock, 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 by the following description thereof (that is to
say) :--
My said Invention of "An Improvement in the Process of Manufacturing
Iron," consists in the application of the muriate of soda or common salt, in the
manner hereafter described, to that part of the process usually known in the
iron trade by the term "puddling," and which operation is performed or
carried on in a furnace termed the "puddling furnace." But I apply salt to
the puddling of iron in the puddling furnace only when pig iron or iron of any
other form, quality, or denomination is puddled therein in the state in which
it comes from the smelting furnace, commonly called in the iron trade "the
blast furnace," and which, when erected upon a smaller scale, is commonly
termed "a cupola," or "a cupola furnaco," and whether such blast or cupola
furnaces are used to melt, refine, or run out a proportion of pig iron, or other
iron previously smelted or made in such kind of furnaces at the time that
they are used to smelt ironstone or other iron ore, as is sometimes the case.
By this application of salt in the puddling furnace to the puddling of pig iron
and other iron in the state aforesaid I am enabled to manufacture malleablo
iron in a cheaper way than it can be manufactured of as good a quality by any
other method now practised. I apply the salt to the iron in the puddling fur-
nace at the time the iron is breaking down or come into fusion, in the propor-
tion of seven pounds weight of salt to three and a half hundredweight of
iron, and I prefer to use or apply the salt either in small pieces or pulverized.
I increase or diminish the quantity of salt as experience of its effects upon the
varying nature or quality of the iron employed suggests, and until a satisfactory
improvement in the iron is produced. I prefer those puddling furnaces which
have iron bottoms to those which have bottoms of sand.
I do not hereby claim the exclusive application of salt to the assaying,
reducing, or working of any kind of iron in the way of experiment in philoso-
phical or scientific researches, nor to any part of the process of manufacturing
iron carried on in the iron trade, except as aforesaid (that is to say), I only
claim the exclusive application of salt to the puddling in the furnace called in
the iron trade the "puddling furnace," of pig iron or iron of any other form,
quality, or denomination which is puddled therein in the state in which it
comes from the smelting furnace, commonly called in the iron trade "tho blast
furnace," and when erected upon a smaller scale "a cupola" or "a cupola fur-
nace," and whether as aforesaid such "blast" or "cupola furnaces" are used

page_text: to melt, refine, or run out a proportion of pig iron or other iron previously
smelted or made in such kind or description of furnaces at the time they are
used to smelt ironstone or other iron ore, as is sometimes the case.
In witness whereof, I, the said Joseph Luckcock, have hereunto.set
my hand and seal, this Fifteenth day of November, in the
our Lord One thousand eight hundred and twenty-four.
year of