Year: 1885

page_text: I, MATTHEW BEAUMONT PARRINGTON of Holborough near Rochester in the
County of Kent Gentleman do hereby declare the nature of this invention to be as
follows:-
According to my invention I form a furnace door for coke ovens of an iron
framework covered on its inner side with a lining of fire tile. Such a door will
withstand the great heat to which it is subjected without warping and so I am
enabled to close in the front of a coke oven with doors hung by hinges from a
metallic front plate or door frame. The inner surface of this door frame would
itself be protected from heat by the brickwork of the oven and can be held in
place by tie-rods passing from front to back of the oven so that the brickwork will
be retained by the door frame and therefore cannot possibly bulge forwards at
the front.
By using this door and frame all expense of wrought iron ties is done away with
at the same time the ovens can be shut perfectly air tight.
The saving in labor and material used in closing the mouths of ovens, is also
very great.
The furnace doors I form with a number of parallel T ribs projecting from them
on their inner face. The tiles which are to form the inner lining of the door I form
of a width to slide down between these inner ribs and with grooves along their
side edges for the heads of the T ribs to fit into. The front face of the door is
formed with openings through it in between the parallel T ribs so that there is free
access of air to the greater part of the front face of the tiles.
By forming the door in the above way its inner surface will be composed entirely
of fire tile and the ribs and other parts of the iron framework of the door will be
kept cool and prevented from coming into direct contact. with the heated gases of
the oven or furnace.
Furnace doors formed in the above way can be used not only for closing the
front of coke ovens but also for closing the mouths of other furnaces.
DLL
CARPMAEL & Co.,
Agents for the Applicant.

page_text: I MATTHEW BEAUMONT PARRINGTON of Holborough near Rochester in the
County of Kent Gentleman 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:-
According to my invention I form a furnace door for coke ovens of an iron
framework covered on its inner side with a lining of fire tile. Such a door will
withstand the great heat to which it is subjected without warping and so I am
enabled to close in the front of a coke oven with doors hung by hinges from a
metallic front plate or door frame. The inner surface of this door frame would
itself be protected from heat by the brickwork of the oven and can be held in
place by tie-rods passing from front to back of the oven so that the brickwork will
be retained by the door frame and therefore cannot possibly bulge forwards at
the front.
By using this door and frame all expense of wrought iron ties is done away with
at the same time the ovens can be shut perfectly air tight.
The saving in labour and material used in closing the mouths of ovens, is also
very great.
The furnace doors I form with a number of parallel T ribs projecting from them
on their inner face. The tiles which are to form the inner lining of the door I form
of a width to slide down between these inner ribs and with grooves along their
side edges for the heads of the T ribs to fit into. The front face of the door is
formed with openings through it in between the parallel T ribs so that there is free
access of air to the greater part of the front face of the tiles.
By forming the door in the above way its inner surface will be composed entirely
of fire tile and the ribs and other parts of the iron framework of the door will be
kept cool and prevented from coming into direct contact with the heated gases of
the oven or furnace.
Figure 1 shows a front view of three coke ovens each formed as above described
with a metallic front plate or door frame at the front of the brickwork of which
the oven is composed, held in place by tie rods passing from end to end of each
oven and with the doors which are to close the front each formed of a framework
of iron lined internally with fire tile.
Figure 2 is a front view on a somewhat larger scale of the brickwork of two of
the ovens with the metallic front plate or door frame in front of one of them.
Figure 3 is a longitudinal section of two ovens set back to back showing the tie
rod which holds the top portion of front plate or door frame in its place and
thereby forms the tie for the brickwork.
Figure 4 shows on a still larger scale a front view and Figure 5 a horizontal
section of one of the doors and part of the front plate or door frame which
carries it.
The coke ovens shown in the drawings are of the kind now used when the heat
passing from the oven is to be employed for heating steam boilers other forms of
coke ovens may however be closed in at the front in the same way.

page_text: A is the front end of the brickwork of each oven-B is the front plate or door
frame placed against it. When the ovens are built together side by side in rows
as shown in the drawing I make the front plate of one oven to come close to the
front plates of the ovens on either side of it and at the top where they meet I hold
them to the brickwork by tie rods C which pass through to the back of the oven
and if two rows of ovens are set back to back as shown at Figure 3 the tie rods
are as shown carried through both.
D are the doors which are to close the front of the ovens-each door is composed
of an iron grating or framework D¹ the parallel vertical bars of which have each at
the back a T shaped or equivalent headed projection E standing out from them as
shown at Figure 5. F F are the fire tiles which fill in the spaces between the ribs
or projections E and which overlap them at the back as shown to protect them
from the heat of the oven.
It will be seen that the metal framework of the door is thoroughly protected
there being nearly two inches of fire tile between the backs of the ribs or
projections E and the interior of the furnace.
Ġ G are small doors also lined with fire tiles carried by each door D which can
be opened for admitting air or for inspecting the interior of the oven-H H are
catches for fastening the doors D when closed.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that
what I claim is :-
1. Closing in the front of coke ovens by doors lined internally with fire tiles and
carried by a metallic front plate or door frame which is held in place by tie rods
passing from front to back and so serves to secure the brickwork and does away
with other ties ordinarily used for securing the brickwork of coke ovens.
2. Forming the doors for closing in the front of coke ovens of an iron framework
or grating with headed ribs or projections at the back and with tiles fitting into
the spaces between the ribs and overlapping them at the back substantially as
described.