Improvements in Constructing and Working Coke Ovens for the Manufacture of Metallurgic Coke.
Year: 1895

page_text: Date of Application, 6th Mar., 1895 .
Complete Specification Left, 5th Dec., 1895-Accepted, 18th Jan., 18:5
PROVISIONAL DE MULPTUATION.
Improvements in Constructing and Working Coke Ovens for the
Manufacture of Metallurgic Coke.
We, WILLIAM URE, of Low Seaton, Workington Cumberland, Builder, and
SAMUEL THOMAS CROASDELL of Windsor Lodge, Moresley, Whitehaven,
Cumberland Engineer, do hereby declare the nature of this invention to be as
follows:-
We build our improved coke ovens with an adequate hollow space beneath
them, in such a way as to enable us to lower the floor of the oven, when the
charge is burned, from its normal position to a new position, in which it slopes,
from back to frout to a desired degree. We are thus enabled (if the slope be
made steep enough) to secure the automatic discharge of the contents of the
oven, or, with a less steep slope greater facility of unloading than is usual with
other ovens.
We effect the quenching of the coke outside.
When the burned contents of the oven are discharged we, by an arrangement of
suitable mechanism raise the bottom of the oven to its natural position, and,
securing it in its place, recharge the oven with fresh coal. By this means we
save much time in discharge of the oven, and we keep the brickwork, including
the bottom, in a thoroughly heated state and thus save time in ignition.
With a view further to save time in the operation of the oven we employ a
hopper with a double damper of fire brick or tire clay lump, next the fire, and of
iron next the coal, which hopper is placed permanently or temporarily over the
charging door of the oven, and which we prefer to make of such size as to contain
a full charge of the oven.
Instead of the usual back-eye lending direct to a flue, we construct several
openings in the lower part of the crown of the oven, leading into a space between
un inner and outer wall of the oven and thenco to a flue.
In order further to expedite the kindling and progress of the oven, and thus to
Save time in the burning of the charge, we construct a series of tuyers round the
bottom of the oven walls, and in the bottom of the oven itself, and by suitable
arrangements we supply a controlled pressure of air, or a regulated mixture of air
and steam, which produces immedinte intense combustion at the point of ingress,
and we find it a valuable meaus of extraction of sulphur, and ash.
We also provide dampers whereby to regulate the escape of the products of
combustion to a desired degree.
Dated this Wifth day of March 1895

page_text: Improvements in Constructing and Working Coke Ovens for the
Manufacture of Metallurgia Coke.
We, WILLIAM URE of Low Seaton Workington, Cumberland, Builder, and
SAMUEL THOMAS CROASDELL of Windsor Lodge, Moresley, Whitehaven,
Cumberland, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
We build our improved coke ovens with an adequate hollow space beneath thein
in such a way as to enable us to lower the floor of the oven, when the charge is
burned, from its normal position to a new position, in which it slopes from back to
front to a desired degree. We are thus enabled (if the slope be made steep
enough) to secure the automatic discharge of the contents of the oven or,
with a less steep slope greater facility of unloading than is usual with other ovens.
We effect the quenching of the coke outside.
When the burned contents of the oven are discharged, we by an arrangement of
suitable mechanism raise the bottom of the oven to its natural position, and securing
it in its place, recharge the oven with fresh coal.
By this means we save much time in discharge of the oven, and we keep the
brickwork including the bottom, in a thoroughly heated state, and thus save time
in ignition.
With a view further to save time in the operation of the oven we employ a
hopper with a double damper of fire brick or fire clay lump, next the fire, and of
iron next the coal which hopper is placed permanently or temporarily over the
charging door of the oven, and which we prefer to make of such size as to contain
a full charge of the oven.
.
lustead of the usual back-eye leading direct to a flue, we construct several
openings in the lower part of the crown of the oven, leading into a space between
an inner and outer wall of the oven, and thence to a flue.
In order further to expedite the kindling, and progress of the oven, and thus to
save time in the burning of the charge, we construct a series of tuyers round the
bottom of the oven walls, and in the bottom of the oven itself, and by suitable
arrangements we supply a controlled pressure of air, or a regulated mixture of air,
and steam, which produces immediate intense combustion at the point of ingress,
and we find it a valuable means of extraction of sulphur and neh.
We also provide dampers whereby to regulate the escape of the products of
combustion to a desired degree.
In the drawings hereto attached, Sheet 1. is a transverse section (on the
line O. O' Sheet 2) of a coke oven according to our invention, and Sheet 3. is plan
at lovel of the oven floor.
A. is the body of the oven in which the charge of coal is placed. B. and B. are
openings in the lower part of the crown of the oven leading into a space between
the inner and outer wall of the oven, and 60 into the flue B'; B' is a Rue
leading to B the main flue of a range of ovens. C is the central opening in the
crown of the arch of the oven in which is a fireclay damper (and its gearing
marked C) so as to resist extreme heat, and a damper (and its gearing marked C³)
which may be of iron to take more safely the weight or impact of coal dropped into
the hopper D. for charging the oven.
E. and E and E', are the tuyer pipes before referred to with their controlling
gear in the shape of cocks or valves of any ordinary construction.
F. is a strong double framed iron or steel beam or lover, swinging on the
weighbar F, actuated by the pin F, and actuating the pin F, and with and by

page_text: this pin F the angle pins I. I, the iron support of the brickwork of the oven floor.
The iron supports being marked H. and the brickwork being marked H'.
Gis a bar actuated by the movement of the wheel M. (which may be moved by
worm wheel or other convenient arrangement) with its pinion N. as shewn, through
a second wheel Q, with its pinion shewn at P. so as to multiply very considerably
the force applied to the rack shewn in the top of the bar G. which rack is
marked L. (this rack may be replaced by a screw if desired).
G' is a counterbalance weight approximately corresponding to the weight of the
oven floor.
R. is an iron support for brickwork which extends across the opening at which
the coke is discharged and S. are girders to strengthen this support.
T. is a guide fixed upon the metal support of the floor of the oven which runs
between the fixed guides U, the object of the arrangement being to keep the oven
floor, during its movement, in the desired position.
The same letters are used to indicate the same parts in each of the three sheets
of drawings.
Having thus described the drawings we will proceed to explain the operation
of the oven assuming that it is in working order, and in the position shewn in
Sheet 1.
We
Ve by means of the handle C' remove the damper C', and by handle C' the
damper C'.
If the hopper D. be of sufficient capacity to hold a full charge of the oven
(which it may be) and if it be loaded, the oven will be at once charged.
If the hopper D. be small (as shown) which it may be, we bring a wagon or
wagons of coal above it, and discharge it then through D. to charge the oven. We
then turn on through some or all of the tuyers a current of air or steam, or a
mixture of both, which we regulate, so as to promote combustion, to a desired
degree; these currents of air or steam, or air and steam, we may vary the
proportion of, reduce, or cut off entirely at any desired time.
The operation of coking is then conducted as usual.
When the charge is fully coked, by the mechanism described beginning at the
wheel M. we lower the floor of the oven, which remains horizontal until the plate J.
is touched, when it begins to tilt, and continues to tilt until it rests upon the two
supports J. and K. at which point the whole charge may slide off or be very easily
drawn off the floor. As soon as the charge is removed we again operate the
wheel M. in the opposite direction. Restore the floor of the oven to the position
shewn in the drawings, and thon rechargo.
The quenching of the coke is done after the charge is off the oven floor, so that
both walls and floor, are in a highly heated state, when the oven is charged, and
the whole process of coking is expedited and simplified.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, wo declare that what we
claim is.―
The construction of coke ovens with lowering floor, so as to effect automatic or
nearly automatic discharge of the charge of coke substantially as described.
J. JAMESON,
Akenside Hill, Newcastle-on-Tyne, as Agent for Applicants.