IMPROVEMENTS IN THE PREPA- RATION OF MATERIALS FOR FETTLING AND LINING PUDDLING FURNACES, AND FOR OTHER LIKE USES
Year: 1869

page_text: LETTERS PATENT to William Frazer, of Number 5, East Parade, in
the Town and County of Newcastle-upon-Tyne, Iron and Chemical
Manufacturer, for the Invention of "IMPROVEMENTS IN THE PREPA-
RATION OF MATERIALS FOR FETTLING AND LINING PUDDLING FURNACES, AND
FOR OTHER LIKE USES."
Scaled the 9th October 1869, and dated the 2nd July 1869.
PROVISIONAL SPECIFICATION left by the said William Frazer at the
Office of the Commissioners of Patents, with his Petition, on the
2nd July 1869.
I, WILLIAM FRAZER, of Number 5, East Parade, in the Town and
County of Newcastle-upon-Tyne, Iron and Chemical Manufacturer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE PREPARATION OF MATERIALS FOR FETTLING OR LINING PUDDLING FURNACES,
AND FOR OTHER LIKE USES," to be as follows:-
This Invention has for its object improvements in the preparation
of materials for fettling or lining puddling furnaces, and for other

page_text: like uses. For this purpose I take the refuse oxide of iron from
chemical works, and which results from the roasting of pyrites for the
manufacture of sulphur or sulphuric acid, and I mix the said oxide with
lime or limestone or other suitable calcareous material; also it may be
with hammer slag or other slag or cinder. I melt this mixture in a
furnace and expose it to a high heat. I then tap it out and afterwards
break and crush it up for use. The material thus obtained is employed
in the same manner as the substances now in use for lining puddling
furnaces. In some cases I omit to mix with the chemical waste oxide
lime or other material as above stated, and I prepare a substance
suitable for lining puddling furnaces by melting the chemical waste
oxide alone or without such admixture. It is exposed to a high heat,
then tapped out of the furnace, and afterwards broken and crushed up
for use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Frazer, in the Great Seal Patent Office
on the 31st December 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
FRAZER, of No. 5, East Parade, in the Town and County of Newcastle-
upon-Tyne, Iron and Chemical Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of July, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Frazer, Her special licence
that I, the said William Frazer, my executors, administrators, and
assigns, or such others as I, the said William Frazer, 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
THE PREPARATION OF MATERIALS FOR FETTLING OR LINING PUDDLING FURNACES,
AND FOR OTHER LIKE USES," upon the condition (amongst others) that I,

page_text: the said William Frazer, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said In-
vention, 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 Frazer, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, 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 the preparation of
materials for fettling or lining puddling furnaces, and for other like
uses. For this purpose I take the refuse oxide of iron from chemical
works, and which results from the roasting of pyrites for the manu-
facture of sulphur or sulphuric acid, and I mix the said oxide with lime
or limestone or other suitable calcareous material; also it may be with
hammer slag or other slag or cinder.
The following proportions are suitable:-Five ewts. of refuse oxide of
iron, or what is usually called burnt stone produced by the roasting of
sulphur pyrites; one cwt. of chalk cliff or limestone, one and a half cwts.
of hammer slag or other refuse oxide of iron from forges or mills. I
melt this mixture in a furnace and expose it to a high heat. I then
when the whole is completely melted tap it out and afterwards break
and crush it up for use.
The furnace I prefer to use is a reverberatory air furnace, or what
is commonly called a cinder bottom ball furnace. To prepare the
material for use it is crushed by edge stones, a Blake or Archer's
crushing machine, or any other suitable machine capable of crushing
hard ores.
The material thus obtained is employed in the same manner as the
substances now in use for lining puddling furnaces. In some cases I
omit to mix with the chemical waste oxide lime or other material as
above stated, and I prepare a substance suitable for lining puddling
furnaces by melting the chemical waste oxide alone or without such
admixture. It is exposed to a high heat, then tapped out of the furnace
and afterwards broken and crushed up for use.

page_text: What I claim is, the preparation of materials for fettling or lining
puddling furnaces, and for other like uses, substantially as above
described.
In witness whereof, I, the said William Frazer, have hereunto set
my hand and seal, this Thirtieth day of December, in the 5
year of our Lord One thousand eight hundred and sixty-nine.
WILLIAM FRAZER. (L.S.)