AN IMPROVEMENT IN THE PROCESS OF MAKING IRON, APPLICABLE AT THE SMELTING OF THE ORE, AND AT VARIOUS SUBSEQUENT STAGES OF THE PROCESS, UP TO THE COMPLETION OF THE RODS OR BARS, AND FOR THE IMPROVEMENT OF THE. QUALITY OF INFERIOR IRON
Year: 1829

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JoSIAS
LAMBERT, of Liverpool Street, in the City of London, Esquire, send
greeting.
WHEREAS His present Majesty King George the Fourth, by His Letters
Patent under the Great Seal of the United Kingdom of Great Britain and
Ireland, bearing date at Westminster, the Thirtieth day of March, now last
past, did give and grant unto me, the said Josias Lambert, His especial
licence, full power, sole privilege and authority, that I, the said Josias
Lambert, my executors, administrators, and assigns, and such others as I, the
said Josias Lambert, my exors, administrators, or assigns, should at any time
agree with, and no others, from time to time and at all times thereafter, during
term of years therein expressed, should and lawfully might make, use, exer-
cise, and vend, within England, Wales, and the Town of Berwick-upon-Tweed,
and also in all His Majesty's Colonies and Plantations abroad, my Invention
of "AN IMPROVEMENT IN THE PROCESS OF MAKING IRON, APPLICABLE AT THE
SMELTING OF THE ORE, AND AT VARIOUS SUBSEQUENT STAGES OF THE PROCESS, UP
TO THE COMPLETION OF THE RODS OR BARS, AND FOR THE IMPROVEMENT OF THE.
QUALITY OF INFERIOR IRON;" in which said Letters Patent there is contained
a proviso, obliging me, the said Josias Lambert, 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.

page_text: within four-calendar months next and immediately after the date of the
recited Letters Patent, as, in and by the same, will more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Josias Lambert, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, is described and ascer-
tained as follows, (that is to say) :-
=
The improvement in the process of making iron, applicable at the smelting
of the ore, and at various subséquent stages of the process, up to the com-
pletion of the rods or bars, consists in the application of salt and potash, mixed
or combined together, to the iron ore, or iron in the blast furnace, the refinery
furnace, the-puddling furnace, or the balling or reheating furnace, or in any
other process to which the iron in its manufacture is subjected when consider-
able heat is applied. The proportions in which I recommend the salt and
potash to be mixed or combined, are two parts of salt to one of potash, but
should the proportions in some degree differ from that best adapted to the
purpose, the useless portions will be dissipated in the process of the manu-
facture. The mixture or combination employed during the process in the
blast furnace should be applied at the time of the smelting of the materials
which are to produce the iron, at the rate of about fifteen pounds to the ton
of iron; and may be introduced in proportionate quantities at the tunnel head of
the blast furnace; either at intervals or with every charge of the materials which
are to produce the iron. If not used in the process of smelting, it may be applied
at intervals. to the metal during the operation in every charge in the refinery
furnace or in the puddling furnace, or to the iron in the balling or reheating
furnace, or in any other process to which the iron in its manufacture may be sub-
jected when considerable heat is applied. A proper proportion of the mixture
to be used in the refinery furnace will be at the rate of 'about twelve pounds
and a half to the ton of iron; and in the puddling furnace about eleven pounds
to the ton of iron, but in the balling or reheating-furnace, and other processes
the quantity to be applied must depend upon the quality, form, and substance
of the iron, taking care that it be sprinkled over and amongst or brought
contact with the iron. The quantity to be applied will differ in-some degree
according to the quality of the materials or the iron, but the proportions
above mentioned are about those proper upon the average. The process
for the improvement of inferior iron consists in the application of "the
same mixture in similar proportions to such iron when subjected to con
siderable heat; for this purpose. the mixture may be applied to the iron
and the iron melted in combination with it, or it may be applied to the iron

page_text: in any reheating or other furnace, and the metal then be subjected to a red
heat for a time, proportioned to the quality, form, and substance of the iron,
care being taken that the mixture be applied in contact with the heated
metal; and for this purpose, if the iron be in the form of tubes, such as gun
barrels, the mixture may be introduced into the tubes. Although I have
mentioned common salt and potash as the substances to form the mixture to
be applied, there are other compounds of sodium and potassium which may
be respectively substituted for those materials, which all have the same effect,
so that the bases in the compounds are combined together, but I recommend
the salt and potash as being the most convenient and economical.
In witness whereof, I, the said Josias Lambert, have hereunto set my
hand and seal, the Twentieth day of July, in the year One thousand
eight hundred and twenty-nine.
JOSIAS (L.s.) LAMBERT.
Signed, sealed, and delivered. by the.
within-named Josias Lanibert, in.
the presence of
W. DAVIES,
Dd THOMAS,
Clerks to Mr. Meyrick, Sol",
day of July, One thousand eight hundred and twenty-nine.
W✶ MEYRICK,
A. Master Extra. in Chancery.
William Davies, of the Parish of Merthyr Tidvil, in the County of Gla-
morgan, Gentleman, maketh oath and saith, that he was present and did see
Josias Lambert, of Liverpool Street, in the city of London, Esquire, duly
sign, seal, and as his act and deed deliver the Instrument, Deed Poll, or
Specification hereunto annexed, and that he so executed the same as well
in the presence of this Deponent as of David Thomas, of the Parish of Merthyr
Tidvil aforesaid, Gentleman, the other attesting Witness thereto. And this
Deponent further saith, that the name or signature "Josias Lambert," set
and subscribed to the said Instrument, Deed Poll, or Specification, is of the
proper handwriting of the said Josias Lambert, and that the names or signa-