IMPROVE- MENTS IN APPARATUS TO BE USED IN CONNECTION WITH REVERBERATORY AND OTHER FURNACES
Year: 1873

page_text: LETTERS PATENT to William Henry Crispin, of Stratford, in the
County of Essex, Copper Smelter, for the Invention of "IMPROVE-
MENTS IN APPARATUS TO BE USED IN CONNECTION WITH REVERBERATORY AND
OTHER FURNACES.”
Sealed the 8th June 1873, and dated the 11th January 1873.
PROVISIONAL SPECIFICATION left by the said William Henry Crispin
at the Office of the Commissioners of Patents, with his Petition, on
the 11th January 1873.
I, WILLIAM HENRY CRISPIN, of Stratford, in the County of Essex,
·Copper Smelter, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS TO BE USED IN CONNECTION WITH REVERBERATORY
AND OTHER FURNACES," to be as follows:-
The first part of this Invention consists in the employment of a
revolving archimedean screw or revolving scoops or arms beneath the
hopper or other opening by which the ore is admitted to the furnace,
such screw being so arranged as to allow a given quantity of ore to fall
at each movement thereof through the arch of the furnace in any

page_text: desired number of streams in front of the furnace bridge. By means of
this arrangement the operation of smelting can be carried on con-
tinuously, and the slag or waste be ready to flow over in a continuous
current by the time it reaches the end of the furnace, whilst the dis-
advantageous consequence of the sudden cooling of the furnace by the!
introduction of a large quantity of ore is altogether avoided.
The second part of this Invention consists in the employment of an
archimedean screw or revolving scoops or arms for the purpose of feeding
the fuel through the arch of the furnace in a continuous stream.
The third part of this Invention consists in forming the furnace bars
of a circular section, and in casting or keying a small cog wheel on to
the end of each bar, such wheels gearing into a worm wheel which is
caused to revolve by steam or other suitable motive power at a slow rate,
the bars being thereby also caused to revolve and so to cleanse each
other, and thus preventing the formation and adhesion of clinker, and 1
also in some degree assisting the spreading of the fuel during com-
bustion.
The fourth part of this Invention consists in the employment of a
cylinder of suitable dimensions which is placed at or near the tap hole
of the furnace. Such cylinder is caused to revolve by means of any
suitable motive power, and the ore or metallic substances under treat-
ment in the furnace is or are allowed to flow in a liquid state into the
interior thereof, the same being by the rapid revolution of the cylinder
disintegrated and reduced to fine particles, and thereby fitted for more
speedy treatment by the necessary subsequent processes than when run
into pigs or blocks in the ordinary way. A blast of cold or heated air is
introduced into the cylinder during its rotation and the disintegration of
the ore or substances under treatment.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Henry Crispin in the Great Seal Patent 3
Office on the 11th July 1873.

page_text: WHEREAS Her most Excellent. Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of January, in the year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Henry Crispin, Her special
licence that I, the said William Henry Crispin, my executors, adminis-
trators, and assigns, or such others as I, the said William Henry Crispin,
my executors, administrators, and assigns, should at any time agreo
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
excrcise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "In-
PROVEMENTS IN APPARATUS TO BE USED IN CONNECTION WITH REVERBERATORY AND
OTHER. FURNACES," upon, the condition (amongst others) that I, the said
William Henry Crispin, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and scals,
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 Henry Crispin, do hereby
declare the nature of my said Invention and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, that is to say:-
The first part of my said Invention consists in the employment of a
revolving archimedean screw or revolving scoops or arms beneath the
hopper or other opening by which the ore is admitted to the furnace,
such screw being so arranged as to allow a given quantity of ore to fall
at each movement thereof through the arch of the furnace in any
desired number of streams in front of the furnace bridge. By means of
this arrangement the operation of smelting can be carried on con-
tinuously, and the slag or waste will be ready to flow over in a continuous
current by the time it reaches the end of the furnace, whilst the
disadvantageous consequences resulting from the sudden cooling of the
furnace by the introduction of a large quantity of ore are altogother
avoided.
The second part of my said Invention consists in the emploviment of a

page_text: cylinder of suitable dimensions (as will be well understood) which is
placed at or near to the tap hole of the furnace. Such cylinder is caused
to revolve by means of any suitable motive power, and the ore or
metallic substances under treatment in the furnace is or are allowed to
flow in a liquid state through the tap hole into the interior of the cylinder,
and by the rapid revolution of the latter the same is or are disintegrated
and reduced to fine particles, and thereby fitted for more speedy treat-
ment by the necessary and usual subsequent processes than when run
into pigs or blocks in the ordinary way. A blast of cold or heated air is
introduced into the cylinder during the rotation of the same, and the dis-
integration of the ore or substances under treatment, the sulphur, and
other deleterious substances combined with the metal being thereby
removed.
Having thus declared and ascertained the nature of my said In-
vention and in what manner the same is to be performed, I would
observe in conclusion, that what I consider novel and original and
therefore claim as constituting the Invention secured to me by the said
herein-before in part recited Letters Patent are,-
First. The apparatus for continuously feeding the ore or substances
under treatment into the furnace, substantially as herein-before described
and set forth.
And, secondly. The combination and arrangement of apparatus for
disintegrating the orc. or substances under treatment, substantially as
herein-before described and set forth.
In witness whercof, I, the said William Henry Crispin, have here-
unto set my hand and seal, this Eleventh day of July, in the
sight hundred and seventy.