IMPROVEMENTS IN ADDARAMIE BAR SURING THEY TRIO ROAD
Year: 1858

page_text: LETTERS PATENT to Archibald Slate, of Adelaide Road, Haverstock
Hill, in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
ADDARAMIE BAR SURING THEY TRIO ROAD "
Sealed the 15th June 1858, and dated the 2nd January 1858.
PROVISIONAL SPECIFICATION left by the said Archibald Slate at the
Office of the Commissioners of Patents, with his Petition, on the 2nd
January 1858.
I, ARCHIBALD SLATE, of Adelaide Road; Haverstock Hill, in. the County of
Middlesex, do hereby declare the nature of the Invention for "IMPROVEMENTS
IN APPARATUS FOR SUPPLYING FUEL TO BLAST FURNACES," to be as follows:-
This Invention has for its object improvements in apparatus for supplying
fuel to blast furnaces. For these purposes the fuel is crushed or reduced into
a fine state, and introduced by blast at the tuyeres, by means of apparatus
capable of measuring the quantities delivered into the blast pipes. The
pulverized or reduced fuel is placed in hoppers or vessels closed at the top,
from the lower end of each of which is a descending pipe,. which is connected
with a blast pipe. Intermediate of the length of such descending pipe are
slides or valves, which are caused to act in succession. by: a cam or other con-
venient mechanism put in motion by the blowing engine in such manner that
one is open when the other is closed, and so that the supply will be alternately
cut off and admitted to the blast pipe, by which means the quantities supplied
may be most accurately adjusted to the requirement.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Archibald Slate in the Great Seal Patent Office, on the
29th June 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARCHI-
BALD SLATE, of Adelaide Road, Haverstock Hill, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of January, in the year of our Lord One
thousand eight hundred and fifty-eight, in the twenty-first year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Archibald Slate, Her special licence that I, the said Archibald Slate,
my executors, administrators, and assigns, or such others as I, the said
Archibald Slate, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and, at all times there-
after 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 "IMPROVE-
MENTS IN APPARATUS FOR SUPPLYING FUEL TO BLAST FURNACES," upon the con-
dition (amongst others) that I, the said Archibald Slate, 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 Archibald Slate, 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 apparatus for supplying
fuel to blast furnaces. For these purposes the fuel is crushed or reduced into
a fine state, and introduced by blast at the tuyeres, by means of apparatus
capable of measuring the quantities delivered into the blast pipes. The
pulverized or reduced fuel is placed in hoppers or vessels closed at the top,
from the lower end of each of which is a descending pipe which is connected
with a blast pipe. Intermediate of the length of such descending pipe are
slides or valves, which are caused to act in succession by a cam or other con-
venient mechanism, put in motion by the blowing engine in such manner that
open when the other is closed, and so that the supply will be alternately
one is

page_text: cut off and admitted to the blast pipe, by which means the quantities supplied
may be most accurately adjusted to the requirement.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING,
which represents a vertical section of an apparatus arranged or combined
according to my Invention. a is the lower part of a hopper into which the
pulverized coal or fuel is placed; 6 is what I call the measuring chamber,
which is formed between two slides or valves c and d, which are to be actuated
by cams or otherwise, in such manner that one shall be closed when the other
is open, or being opened so that the blast shall be prevented passing in that
direction. The form of measuring chamber, and of the slides or valves (used
to open and close the same, between the hopper or source of supply and the
blast pipe) may be greatly varied; I do not, therefore, confine myself to the
form of apparatus shown, so long as measured and regulated quantities may
be supplied in place of the uncertain and irregular supply which has here-
tofore resulted when attempts have been made to throw in pulverized coal or
fuel by the aid of the blast. And it is desirable that whatever be the form of
measuring chamber or apparatus used, that provision should be made for
varying from time to time the quantities taken and delivered from the hopper
to the blast pipe at each time of action. g is a pipe leading to the tuyere
pipe; is an adjusting screw and nuts for adjusting the size of the measuring
chamber.
Having thus described the nature of my Invention, and the best manner I
am acquainted with for performing the same, I would have it understood that
I do not claim the forcing in of pulverized coal or fuel by the aid of the blast
of a furnace; but what I claim is, the combining apparatus in such manner
that measured or defined quantities may be regularly supplied.
In witness whereof, I, the said Archibald Slate, have hereunto set my
hand and seal, this Twenty-eighth day of June, in the year of our
Lord One thousand eight hundred and fifty-eight.
ARCHP SLATE. (LS.)
Witness,
WILL O'BRIEN,
Clerk to Messrs. Bell, Steward, & Lloyd,
49, Lincoln's Inn Fields.