AN IMPROVEMENT IN VESSELS OR BATHS FOR CONTAINING HEATED METALS AND FLUXES EMPLOYED IN THE PROCESSES OF HARDENING AND TEMPERING STEEL AND STEEL ARTICLES
Year: 1863

page_text: LETTERS PATENT to William Tarleton Bury, of Regent Works, Sheffield,
in the County of York, Steel Manufacturer, for the Invention of "AN
IMPROVEMENT IN VESSELS OR BATHS FOR CONTAINING HEATED METALS AND
FLUXES EMPLOYED IN THE PROCESSES OF HARDENING AND TEMPERING STEEL
AND STEEL ARTICLES."
Sealed the 5th February 1864, and dated the 12th October 1863.
PROVISIONAL SPECIFICATION left by the said William Tarleton Bury at
the Office of the Commissioners of. Patents, with his Petition, on the
12th October 1863.
I, WILLIAM TARLETON BURY, of Regent Works, Sheffield, in the County
of York, Steel Manufacturer, do hereby declare the nature of the said
Invention for "AN IMPROVEMENT IN VESSELS OR BATHS FOR CONTAINING HEATED
METALS AND FLUXES EMPLOYED IN THE PROCESSES OF HARDENING AND TEMPERING
STEEL AND STEEL ARTICLES," to be as follows:-
The vessels or baths ordinarily employed for containing melted lead or fluxes
in a beated and fluid state in the processes of hardening and tempering steel
and steel articles are made of cast iron. Such vessels or baths are defective
on account of the melted lead or flux oozing through the cast iron, which action
increasing daily soon renders such baths useless.
Now my Invention has for its object to prevent such oozing or penetrating
through of the melted lead or fluxes, and consists in providing such vessels or
baths with a lining of a metal or an alloy that is of a denser or less porous
nature than cast iron, and that does not melt at the temperature of melted

page_text: lead, or at the temperature to which the fluxes require to be raised in the bath.
I prefer to employ for this purpose good wrought iron, such as is used for
boiler plates, as being the cheapest metal suitable for the purpose, but steel,
copper, and other metals or alloys fulfilling the above-named conditions may
be made use of. Such lining may be made separate from and be placed loose
inside the cast-iron vessel, so as to be capable of being removed and replaced
when deteriorated, or the lining may be made to form part of the mould for
the cast-iron vessel, so that the latter is cast upon it surrounding its outer
surface.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Tarleton Bury in the Great Seal Patent Office on
the 11th April 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TARLETON BURY, of Regent Works, Sheffield, in the County of York, Steel
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of October, in the year of our
Lord One thousand eight hundred and sixty-three, in the twenty-seventh year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Tarleton Bury, Her special licence that I, the said
William Tarleton Bury, my executors, administrators, and assigns, or such
others as I, the said William Tarleton Bury, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, an Inven-
tion for "AN IMPROVEMENT IN VESSELS OR BATHS FOR CONTAINING HEATED
METALS AND FLUXES EMPLOYED IN THE PROCESSES OF HARDENING AND
TEMPERING STEEL AND STEEL ARTICLES," upon the condition (amongst
others) that I, the said William Tarleton Bury, my executors or adminis-
trators, by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Tarleton Bury, do hereby
declare the nature of the said Invention, and in what manner the same is

page_text: to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:―
The vessels or baths ordinarily employed for containing melted lead, or
fluxes in a heated and fluid state, in the processes of hardening and tempering
steel and steel articles, are made of cast iron. Such vessels or baths are
defective on account of the melted lead or flux oozing through the cast
iron, which action increasing daily soon renders such baths useless.
Now my Invention has for its object to prevent such oozing or penetrating
through of the melted lead or fluxes, and consists in providing such vessels or
baths with a lining of a metal or an alloy that is of a denser or less porous
nature than cast iron, and that does not melt at the temperature of melted
lead, or at the temperature to which the fluxes require to be raised in the bath.
I prefer to employ for this purpose good wrought iron, such as is used for
boiler plates, as being the cheapest metal suitable for the purpose, but steel,
copper, and other metals or alloys fulfilling the above-named conditions, may
be made use of. Such lining may be made separate from and be placed loose
inside the cast-iron vessel, so as to be capable of being removed and replaced
when deteriorated, or the lining may be made to form part of the mould for
the cast-iron vessel, so that the latter is cast upon it surrounding its outer
surface. When the lining to the said baths is of wrought iron, I prefer to
make the same from one-quarter to three-eighths of an inch in thickness
according to the size and capacity of the bath.
Having now described the nature of my Invention, and in what manner the
same is to be performed, what I claim under the herein-before in part recited
Letters Patent is, providing baths of cast iron employed for hardening and
tempering steel and steel articles, with a lining of any metal or alloy that will
prevent the oozing through of the melted lead or heated flux contained in the
bath, and that will at the same time withstand the degree of heat to
which it is required that the melted lead or flux should be raised.
In witness whereof, I, the said William Tarleton Bury, have hereunto
set my hand and seal, this Eighth day of April, in the year of our
Lord One thousand eight hundred and sixty-four.