IMPROVEMENTS IN FURNACES USED IN MELTING STEEL AND OTHER METALS WHERE CRUCIBLES OR POTS ARE EMPLOYED
Year: 1860

page_text: LETTERS PATENT to Samuel Fox, of Deepcar, near Sheffield, for the
Invention of "IMPROVEMENTS IN FURNACES USED IN MELTING STEEL AND
OTHER METALS WHERE CRUCIBLES OR POTS ARE EMPLOYED."
Sealed the 30th April 1861, and dated the 7th November 1860.
PROVISIONAL SPECIFICATION left by the said Samuel Fox at the Office
of the Commissioners of Patents, with his Petition, on the 7th
November 1860.
I, SAMUEL Fox, of Deepcar, near Sheffield, do hereby declare the nature
of the Invention for "IMPROVEMENTS IN FURNACES USED IN MELTING STEEL AND
OTHER METALS WHERE CRUCIBLES OR POTS ARE EMPLOYED," to be as follows:-
This Invention has for its object improvements in furnaces used in melting
steel or other metals where crucibles or pots are employed. It is well known
that such furnaces have to be repaired or pulled down and rebuilt at short
intervals and at considerable cost, and my Invention consists in means of con-
structing such descriptions of furnaces with one or more inner lining or linings
so and in such manner that such inner lining or linings only shall be required
to be removed and replaced from time to time, whilst the main structure will
remain undisturbed, and will continue serviceable for a much longer period
than would be the case without such lining, its operation being to protect and
preserve the main structure. For these purposes furnaces for melting steel and

page_text: other metals in crucibles or pots are constructed in the ordinary manner, and
each chamber must be of sufficient size to contain the inner lining or linings
herein-after described as well as the pot or crucible, and coal, coke, or other
material used to melt the steel or other metals, and may be either rectangular or
of any other shape, but it is preferred that it should be of an oval form. Within
the chamber is then inserted a lining of brick, tile, or other form of fire-clay
or by preference of ganister stone, ground, moulded, and burnt in the ordinary
manner, and such lining may be either all in one piece or in several pieces so
as to suit the particular furnace in which it is intended to be used. The lining
above described may be either used alone (in which case it must be fitted with
such accuracy as the circumstances of each case may require to the interior of
the permanent part of the furnace) or between that lining and the permanent
part of the furnace in case the heat is of such a degree as to make it desirable
for the further protection of the permanent part of the furnace, a space is left
between the brick, tile, or ganister lining above described, and the permanent
sides of the furnace, which space is filled up with coke dust, charcoal, sand,
lime, or other bad conductor of heat. Thus when the inner lining becomes
useless from being burnt away, or by accident, and a new one is required,
the old one is removed and the new one introduced without disturbing the
main brickwork or structure of the furnace.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Fox, in the Great Seal Patent Office on the 7th
May 1861.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
Fox, of Deepcar, near Sheffield, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by IIer Letters
Patent bearing date the Seventh day of November, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-fourth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Samuel Fox, Her special licence, that I, the said Samuel Fox, my executors,
administrators, and assigns, or such others as I, the said Samuel Fox, 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 Invention for "IMPROVEMENTS IN FURNACES

page_text: USED IN MELTING STEEL AND OTHER METALS WHERE CRUCIBLES OR POTS ARE
EMPLOYED," upon the condition (amongst others) that I, the said Samuel
Fox, my executors or administrators, 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 Samuel Fox, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof (that is to say) :-
This Invention has for its object improvements in furnaces used in melting
steel or other metals where crucibles or pots are employed. It is well known
that such furnaces have to be repaired or pulled down and rebuilt at short
intervals and at considerable cost, and my Invention consists in means of con-
structing such descriptions of furnaces with one or more inner lining or linings,
so and in such manner that such inner lining or linings only shall be required to
be removed and replaced from time to time, whilst the main structure will
remain undisturbed, and will continue serviceable for a much longer period
than would be the case without such lining, its operation being to protect
and preserve the main structure. For these purposes furnaces for melting
steel and other metals in crucibles or pots are constructed in the ordinary
manner, and each chamber must be of sufficient size to contain the inner
lining or linings herein-after described, as well as the pot or crucible, and coal,
coke, or other material used to melt the steel or other metals, and may be
either rectangular or of any other shape, but it is preferred that it should be
of an oval form as shewn in the Drawing hereunto annexed. Within each
chamber is then inserted a lining of brick, tile, or other form of fire-proof clay,
or suitable compound, or by preference of ganister or other silicious stone
ground, moulded, and burnt in the ordinary manner, and such lining may be
either all in one piece or in several pieces so as to suit the particular furnace
in which it is intended to be used. The lining above described may be either
used alone (in which case it must be fitted with such accuracy as the circum-
stances of each case may require to the interior of the permanent part of the
furnace) or between that lining and the permanent part of the furnace in case
the heat is of such a degree as to make it desirable for the further protection
of the permanent part of the furnace; a space is left between the brick, tile,
organister lining above described, and the permanent sides of the furnace,

page_text: which space is filled up with coke dust, charcoal, sand, lime or other bad con-
ductor of heat. Thus, when the inner lining or linings become useless from
being burnt away, or by accident, and a new one is required, the old one is
removed and the new one introduced without disturbing the main brickwork
or structure of the furnace.
which space is filled up with coke dust, charcoal, sand, lime or other bad con-
ductor of heat. Thus, when the inner lining or linings become useless from
being burnt away, or by accident, and a new one is required, the old one is
removed and the new one introduced without disturbing the main brickwork
or structure of the furnace.
In witness whereof, I, the said Samuel Fox, have hereunto set my hand
and seal, this Second day of May in the year of our Lord One thousand
SAMUEL FOX. (L.S.)