IMPROVEMENTS IN THE MANUFACTURE OF IRON, STEEL, AND OTHER METALS
Year: 1877

page_text: LETTERS PATENT to William Drake, of Sheffield, in the County of York, for the
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF IRON, STEEL, AND
OTHER METALS."
Sealed the 17th July 1877, and dated the 5th February 1877.
PROVISIONAL SPECIFICATION left by the said William Drake at the Office
of the Commissioners of Patents on the 5th February 1877.
WILLIAM DRAKE, of Sheffield, in the County of York.
THE MANUFACTURE OF IRON, STEEL, AND OTHER METALS."
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IMPROVEMENTS IN
The object of this Invention is to produce a compound which by admixture with
the melted metal in the furnace shall greatly improve its quality.
The ingredients of the said compound are (1), pulverized charcoal; (2), Spanish and
English baryta, pulverized and scoured with acids for the removal of dirt and im-
purities, the acid preferred being vitrol and acids of a similar kind, and after this
cleansing process the baryta is calcined and pulverized; (3), bullock's blood, which
last is calcined or dried by heat and pulverized when the compound is to be used
in a powdered state, but when the compound is to be used as a liquid or in a moist
state the bullock's blood is not dried, but the powdered charcoal and baryta is
mixed therewith, and the whole is made more or less liquid by water, preferably
distilled.
The proportions which I find most useful for general purposes is one-fourth part
each by weight of charcoal and bullock's blood to one part of baryta, but these pro-
portions vary somewhat according to the metal to be treated; thus, although the
above specified compound is well proportioned for iron or steel, for treating copper
the compound employed would consist of baryta principally, a small quantity of
charcoal, and but a little calcined bullock's blood, but the varying proportions for
the varying qualities of the metals must be decided by testing.
When the compound is employed in a liquid state it is pumped or injected into
the furnace at about the time when the metal commences to melt, and when used
as a powder it is thrown into the melted metal from time to time, as experience will
decide.
•
For the treatment of a charge of iron or steel in its melted state in the puddling
furnace or the cupola, I add one pound and a half of the compound to each hundred-
weight of metal, said compound being used either dry or moist,

page_text: For welding cast or Bessemer steel and welding generally, a small quantity of the
powdered compound is placed upon or between the parts to be joined and exercises
a very advantageous effect in facilitating the weld.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Drake in the Great Seal Patent Office on the 4th August
1877.
WILLIAM DRAKE, of Sheffield, in the County of York.
THE MANUFACTURE OF IRON, STEEL, AND OTHER METALS."
"IMPROVEMENTS IN
The object of this Invention is to produce a compound which by admixture with
the melted metal in the furnace shall greatly improve its quality.
The ingredients of the said compound are (1), pulverized charcoal; (2), Spanish
and English baryta, pulverized and scoured with acids for the removal of dirt and
impurities, the acid preferred being vitriol and acids of a similar kind; after this
cleansing process the baryta is calcined and pulverized; (3), bullock's blood, which
is calcined or dried by heat and pulverized when the compound is to be used in a
powdered state, but when the compound is to be used as a liquid or in a moist
state the bullock's blood is not dried, but the powdered charcoal and baryta is
mixed therewith, and the whole is made more or less liquid by water, preferably
distilled.
The proportions which I find most useful for general purposes are one-fourth part
each by weight of charcoal and bullock's blood to one part of baryta, but these pro-
portions vary somewhat according to the metal so treated; thus, although the above
specified compound is well proportioned for iron or steel, that employed for treating
copper would consist of baryta principally, a small quantity of charcoal, and but a
little calcined bullock's blood, but the proportions will vary for the different
qualities of the metals as experiments shall determine.
When the compound is employed in a liquid state it is pumped or injected into
the furnace at about the time when the mictal commences to inelt, and when used
as a powder it is thrown into the melted metal from time to time, as experience will
decide.
For the treatment of a charge of iron or steel in its melted state in the puddling
furnace or the cupola, I add one pound and a half of the compound to each hundred-
weight of metal, the said compound being used either dry or moist.
For welding cast or Bessemer steel and for welding purposes generally, a small
quantity of the powdered compound is placed upon or between the parts to be
joined, and exercises a very advantageous effect in facilitating the weld.
For enamelling the inside of cast iron, copper, or other metal vessels such as are
used for household purposes, brewing pans, and the like, I use a compound consist-
ing of baryta with only a small quantity of bullock's blood and charcoal.
In the welding of all kinds of steel, English and foreign baryta (as before
described), pulverized and freed from all impurities, may be applied dry in a
powdered state as required.
I claim as my Invention the application and use of a compound in the
manufacture of iron, steel, and other metals, as and for the purposes herein-before
described.
In witness whereof, I, the said William Drake, have hereunto set my hand
and seal, this Second day of August, in the year of our Lord One thousand
'WILLIAM DRAKE. (LS.)