Improvements in the Construction of Cooking Ranges or Kitcheners.
Year: 1886

page_text: Date of Application, 3rd Apr., 1886.
Complete Left, 1st Jan., 1887.
Complete Accepted, 1st Feb., 1887.
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Cooking Ranges or
Kitcheners.
I, DAVID COWAN, of Mount Gerald, Larbert, in the County of Stirling, North
Britain, Civil Engineer, Manager for Carron Company, incorporated by Royal Charter,
do hereby declare the nature of this Invention to be as follows, that is to say :-
My said Invention relates to cooking ranges or kitcheners of the self-setting
close-fire or Leamington type; and has for one of its objects to reduce the number of
moulder's patterns, and of varieties of castings required to make up various widths of
such cooking ranges or kitcheners. My Invention also comprises improved arrange-
ments for ventilating the oven or ovens and for preventing or diminishing smoke.
A cooking range of the type referred to comprises three main divisions or compart-
ments; namely a fire, an oven, and a boiler compartment, or a fire and two oven
compartments. In carrying out this Invention various widths of these several
compartments are made, and any of the widths of the fire compartment can be
combined with any of the widths of oven or boiler compartments; and so that the
parts, excepting the jamb mouldings and end covings, which go to make up an oven
or a boiler compartment for the right-hand side will also make up an oven or a boiler
compartment for the left-hand side. The hob or top plates of the range are made so as
to be entirely removable to give access to the interior of the range without removing
or unfixing any other part of the range; and are not used for binding together any
parts of the range. The oven plates are so made, and their joints and fitting parts are
so contrived, that in the case of an oven of equal width and height, the plates for the
top, bottom, and sides, are all exactly alike; and consequently for all ovens of this
construction the same pattern will suit for the sides of all ovens of the same height and
depth, whilst the same pattern for the tops and bottoms will suit for all ovens of the
same width and depth.
Provision is made for ventilating the oven by air, which before entering the oven
passes under the plate forming the bottom of the flue which passes under the oven.
The air thus takes up heat which would be wasted in heating the hearth or floor; and
the air thus heated, after passing through the oven enters the flue near the top of the

page_text: fire and there mixing with the smoke and gases evolved from the fuel promotes
thorough combustion.
The precise details employed in carrying out my Invention may be variously
modified; but those which I at present prefer to adopt in the case, for example, of a
range with an oven on the left-hand side of the fire and a boiler on the right-hand
side. The end or gable plates are the same for both ends, and are made with projecting
hooks at the same levels on both vertical edges for locking or engaging with suitable
fittings on either vertical edge of the oven front plate, boiler front plate, oven
compartment back plate, and boiler compartment back plate. The right-hand and
left-hand fire cheek plates are exactly alike, and are made with hooks or projections to
lock or engage with the plates to which they have to be fastened. The fire front grate
has two hooks on each side to engage with fittings on either vertical edge of the oven
front plate and boiler front plate. There are flue openings at the centres of the
bottoms of the oven and boiler back plates; and the sole plate of the oven compartment
is made with an air heating space which is covered by an upper plate, whilst projections
are cast on this upper plate to retain in position a vertical flue dividing plate or
feather which can be set to suit either the left-hand or right-hand side. Inlets for
fresh air are provided in the oven front plate and communicate with the space in the
sole plate; whilst this space, which is provided with feathers to make the air take a
circuitous course, is made to communicate with the lower corner of the oven which is
furthest from the fire, the joint at that corner being left open, whilst the joint at the
low corner nearest the fire is closed with putty or cement.
In a similar way egress
for the heated air from the oven and carrying with it the vapors of anything being
cooked in the oven, is provided at the upper corner nearest the fire the joint there
being left open, whilst the joint at the upper corner further from the fire is closed.
The ashpit back plate, the firebox back plate, the fire bottom grate frame, the
fire-compartment hob plates, and fire-compartment back coving, have their edges and
fittings which join to the parts of the oven compartment of the range, the same as
those which join to the boiler-compartiment parts. The oven hob plates and boiler hob
plates are rectangular in plan, and rest on flanges or projecting strips cast on the gable
plates and back plates; and their edges which rest on these plates are all alike in form,
so that they can be turned about to suit an oven compartment on the right-hand or
left-hand side of the fire, or a boiler compartment on the right-hand or left-hand
side of the fire. The hob plates also rest within the faces of the coving dlates
which rest directly on the vertical plates below them, and the hob plates can
consequently be lifted off independently of other parts. The back coving plates
made with slots near their vertical edges in positions to suit the hooks of the side
coving plates and of the middle back plate.
are
The oven plates are each made with an overlapping angled part at one edge and
with an indented part at the other edge; and the overlapping edge of one plate is
placed over the indented part of the next plate, the space between the edge parts
being filled with putty or cement when a closed joint is required, and being left open
when a passage for air is required at the corner.
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in the Construction of Cooking Ranges or
Kitcheners.
I, DAVID COWAN, of Mount Gerald, Larbert, in the County of Stirling, North
Britain, Civil Engineer, Manager for Carron Company, incorporated by Royal Charter;
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, that is to say :-
My said Invention relates to cooking ranges or kitcheners of the self-setting close-fire
or Leamington type; and has for one of its objects to reduce the number of moulder's
patterns, and of varieties of castings required to make up various widths of such
cooking ranges or kitcheners. My Invention also comprises improved arrangements.
for ventilating the oven or ovens and for preventing or diminishing smoke.
A cooking range of the type referred to comprises three main divisions or compart-
ments; namely, a fire, an oven, and a boiler compartment, or a fire and two oven
compartments. In carrying out this Invention various widths of these several
compartments are made, and any of the widths of the fire compartment can be
combined with any
of the widths of oven or boiler compartments; and so that the
parts, excepting the jamb mouldings and end covings, which go to make up an oven
an oven or a boiler
or a boiler compartment for the right-hand side will also make range are made so
compartment for the left-hand side. The hob or top plates of
as to be entirely removable to give access to the interior of the range without removing
or unfixing any other part of the range; and are not used for binding together any
parts of the range. The oven plates are so made, and their joints and fitting parts are
so contrived, that in the case of an oven of equal width and height, the plates for the
top bottom, and sides, are all exactly alike; and consequently for all ovens of this
construction the same pattern will suit for the sides of all ovens of the same height and
depth, whilst the same pattern for the tops and bottoms will suit for all ovens of the
same width and depth.
and
Provision is made for ventilating the oven by air, which before entering the oven
passes under the plate forming the bottom of the flue which passes under the oven.
The air thus takes up heat which would be wasted in heating the hearth or floor;
the air thus heated, after passing through the oven enters the flue near the top of the
fire and there mixing with the smoke and gases evolved from the fuel promotes
thorough combustion.
The precise details employed in carrying out my Invention inay be variously
modified; but those which I at present prefer to adopt in the case, for example, of a
range with an oven on the left-hand side of the fire and a boiler on the right-hand
side, are shown on two accompanying sheets of explanatory drawings. Figure, 1,

page_text: sheet, 1, is a front perspective view of the kitchener complete; and figure, 2, is also a
front perspective view but showing the plates as separated. Figure, 3, on sheet, 2, is
a horizontal section as taken just below the hob or hot plate but with the oven and
boiler supposed to be removed; and figure, 4, is a vertical section. In these drawings
the same reference letters and numerals are used to mark the same or like parts
wherever they are repeated.
The end or gable plates, A, are the same for both ends, and are made with projecting
hooks, X, at the same levels on both vertical edges for locking or engaging with suitable
fittings, Y, on either vertical edge of the oven front plate, A 5, boiler front plate, C 16,
oven compartment back plate, A 1, and boiler compartiment back plate, C14. The right-
hand and left-hand fire cheek plates, A2, are exactly alike, and are made with hooks or
projections, X, to lock or engage with the plates to which they have to be fastened. The
fire front grate, B 8, has two hooks, X, on each side to engage with fittings, Y, on either
vertical edge of the oven front plate, A 5, and boiler front plate, C16. There are flue
openings at the centres of the bottoms of the oven and boiler back plates, C1, C 14; and
the sole plate, A 3, of the oven compartment is made with an air heating space which
is covered by an upper plate, A 31, whilst projections are cast on this upper plate to
retain in position a vertical flue dividing plate or feather, A4, which can be set to suit
either the left-hand or right-hand side. Inlets, J, for fresh air are provided in the
oven front plate, A 5, and communicate with the space in the sole plate, A 3, whilst
this space, which is provided with feathers, F, to make the air take a circuitous course,
is made to communicate with the lower corner of the oven which is furthest from the
fire, the joint at that corner being left open, whilst the joint at the low corner nearest
the fire is closed with putty or cement. In a similar way egress for the heated air.
from the oven and carrying with it the vapors of anything being cooked in the oven,
is provided at the upper corner nearest the fire the joint there being left open, whilst
the joint at the upper corner further from the fire is closed. The course the air takes
is shown by dotted arrows in figure, 3, and by the smaller arrows in figure, 4; the
larger arrows in these figures showing the direction of the fire gases. The ashpit back
plate, B 7, the firebox back plate, B9, the fire bottom grate frame, B 10, the
fire-compartment hob plates, B 12, B 13, and fire-compartment back coving, D 20,
have their edges and fittings which join to the parts of the oven compartment of the
range, the same as those which join to the boiler-compartment parts. The oven
hob plates, A 6, and boiler hob plates, C 17, are rectangular in plan, and rest on flanges
or projecting strips cast on the gable plates and back plates, A, A 1, A 5, C 14, C 16, A;
and their edges which rest on these plates are all alike in form, so that they can be
turned about to suit an oven compartment on the right-hand or left-hand side of
the fire, or
a boiler compartment on the right-hand or left-hand side of the
fire. The hob plates, A 6, B 12, B 13, and C 17, also rest within the faces of the
coving plates, D 18, D 19, D 20, D 21, D 22, which rest directly on the vertical
plates, A, A1, C14, A, below them and the hob plates can consequently be lifted off
independently of other parts. The back coving plates, D 19, D 21, are made with
slots, Z, near their vertical edges in positions to suit the hooks, X, of the side coving
plates, D 18, D 22, and of the middle back plate.
The oven plates, K, are each made with an overlapping angled part at one edge and
with an indented part at the other edge; and the overlapping edge of one plate is
placed over the indented part of the next plate, the space between the edge parts being
filled with putty or cement when a closed joint is required, and being left open when a
passage for air is required at the corner.
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. Constructing and combining together the parts of cooking ranges or kitcheners
substantially in the improved manner hereinbefore described and as shown in the
accompanying drawings.
2. Providing for the ventilation of a kitchener oven with heated air by passages

page_text: formed substantially as hereinbefore described and as shown in the accompanying
drawings.
3. Making sets of plates for building up a cooking range or kitchener with
connecting devices admitting of various widths of fire-compartment plates being
combined with various widths of oven-compartment or boiler-compartment plates, and
admitting of an oven-compartment or a boiler compartment being placed on either side
of the fire compartment substantially as hereinbefore described.
4. Making the hob or hot plates removable without unfixing other parts of the
cooking range or kitchener substantially as hereinbefore described.
5. Making the oven plates with the parts by which they are fitted together as
hereinbefore described and as shown in the accompanying drawings, and so that for
any ovens of equal width and height the top, bottom, and side plates are exactly alike,
and may be made from very few patterns.
EDMUND HUNT,
Applicant's Agent.