AN IMPROVE- MENT IN THE MANUFACTURE OF COXE."
Year: 1857

page_text: LETTERS PATENT to William Cory, junior, of Gordon Place, Gordon
Square, in the County of Middlesex, for the Invention of "AN IMPROVE-
MENT IN THE MANUFACTURE OF COXE."
PROVISIONAL SPECIFICATION left by the said William Cory at the
Office of the Commissioners of Patents, with his Petition, on the 25th
April 1857.
I, WILLIAM CORY, junior, of Gordon Place, Gordon Square, in the County
of Middlesex, do hereby declare the nature of the Invention for "AN IMPROVE-
MENT IN THE MANUFACTURE OF COKE," to be as follows:-
This Invention has for its object an improvement in the manufacture of
coke, and consists in combining gas tar or pitch with the small coal or slack
of what are known as steam or open burning coals, such as Merthyr, Duffryn,
and Graigola, and others, which classes of coal are free or for the most part
free from bitumen, and the small or slack of which is not in itself capable of
coking in the ordinary manner in coke ovens. For this purpose the small coal
is mixed with coal tar or pitch and is then placed in a coke oven, and the
process of coking is conducted in a similar manner to that practised when
coking bituminous coal.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Cory in the Great Seal Patent Office on the
24th October 1857.,
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CORY, junior, of 4, Gordon Place, Gordon Square, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of April, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
William Cory, Her special licence that I, the said William Cory, my execu-
tors, administrators, and assigns, or such others as I, the said William Cory,
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 "AN IMPROVEMENT IN THE MANUFACTURE OF
COKE," upon the condition (amongst others) that I, the said William Cory,
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 William Cory, 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 an improvement in the manufacture of
coke, and consists in combining gas tar or pitch with the small coal or slack
of what are known as steam or open burning coal, such as Merthyr, Duffryn,
and Graigola, anthracite, Hartleys, hard steam, and others, which classes of
coals are free or for the most part free from bitumen, and the small or slack
of which is not in itself capable of coking in the ordinary manner in coke
ovens. The small coal, thus mixed with coal tar or pitch, is placed in a coke
oven, and the process of coking is conducted in a similar manner to that
practised when coking bituminous coal.

page_text: Having thus stated the nature of my Invention, I will proceed more fully
to describe the manner of performing the same.
The small or slack of the descriptions of coal above stated are mixed with
the quantity of tar or pitch required, and I find that if the tar or pitch be
well and intimately mixed with the coal, a quantity of about from one-tenth
to one-fifth by weight of pitch or tar is sufficient. The coal and the tar or
pitch having been carefully and intimately mixed, the mixture is thrown into
coking ovens, and the process of coking is carried on in the same manner as
if the small of bituminous or coking coal was being used.
In witness whereof, I, the said William Cory, have hereunto set my
hand and seal, this Twenty-fourth day of October, in the year of our
Lord One thousand eight hundred and fifty-seven.
Witness,
S. CARPMAEL.
W. CORY, JUNE. (L.S.)