Improvements in Cooking Ranges.
Year: 1899

page_text: Improvements in Cooking Ranges.
I, JOHN ROBINSON CROSTHWAITE, of the Union Foundry, Thornaby-on-Tees, in
the County of York, do hereby declare the nature of this invention to be as
follows:-
This invention relates to cooking ranges of the kind in which the fire is
closed in by a cover plate.
The object of my invention is to provide easy and convenient means of con-
verting a close fire of this kind into an open fire thereby adapting the stove to the
purpose of a cooking range, or of an ordinary open fire as required. A further
object of my invention is to provide means for reducing or increasing the fire
space at will and to the requirements of a cooking range or open fire as the case
may be.
In order to convert a cooking range or closed in fire into an open fire it is
necessary to provide a passage for the products of combustion from the open fire
into the chimney at some position conveniently above the fire, which passage or
opening must be closed when the fire is closed in to use the stove as a cooking
range.
By my invention I effect this in.a special, novel and simple manner which will
be understood from the following description.
From an opening into the chimney situated in the coving behind the fire and at
a convenient height above the fire level are extended outwardly, two sides and
cover plate of a hood of suitable dimensions and capacity to direct the products of
combustion from the fire into the chimney. A. quadrant shaped plate is hinged
to the sides of the hood so that the said quadrant plate can be turned outwardly
on its axis to form part of the hood or inwardly to close the passage into the
chimney, the quadrant being struck and centred" to a suitable radius and fitted
endwise between the sides of the hood for this purpose, provision being made to
limit the outward movement when the quadrant has reached the position in which
it completes the intended shape of the hood. On the other hand provision is
made for supporting the quadrant at its extreme inward position at which it
serves to close the opening into the chimney.
The quadrant is placed in the inward or outward position according as the
fire cover is over the fire or removed therefrom.
In order to vary the fire space the fire bars are made adjustable in position
at will and in the following manner. They are hinged to the range front to
hang therefrom, the stove back being curved to the radius of the bars so that the
free ends thereof swing close past the stove back. A rack is hinged to the lower
end of the fire bars to trail over the edge of the range front against which the
teeth of the rack become locked in the manner to hold up the bars in the position
to which they have been pushed to reduce the fire space. This construction

page_text: provides for any desired number of adjustments of the fire bars and the rack is clear
of the fire.
Dated this 25th day of January 1899.
I, JOHN ROBINSON CROSTHWAITE, of the Union Foundry, Thornaby-on-Tees, in
the County of York, Ironfounder, 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:-
This invention relates to cooking ranges of the kind in which the fire is closed
in by a cover plate.
The objects of my invention are to provide a cooking range which by means
of its construction and the combination of its several parts affords an easy and
convenient means of converting a fire closed in by a cover plate into an open fire,
thereby adapting the stove to the purpose of a cooking range, or of an ordinary
open fire as required, and also to provide means for reducing or increasing the
fire space so as to meet the requirements of the occasion in the form of a cooking
range or open fire as the case may be.
In order to convert a cooking range or closed in fire into an open fire it is
necessary to provide a passage for the products of combustion from 'the open
fire into the chimney at some position conveniently above the fire, which passage
or opening must be closed when the fire is closed in to use the stove as a cooking
range. By my invention I effect this in a special, novel and simple manner.
And in order that my invention may be clearly understood and readily carried
into effect, I will proceed to describe the same with reference to the accompanying
drawing, which illustrates a cooking range with the improvements applied.
Fig. 1 is a front elevation of the cooking range, corresponding to which Fig. 2 is
a transverse sectional view taken on line of Fig. 1.
In the drawing, from an opening a into the chimney 6 situated in the coving c
behind the fire and at a convenient height above the fire level are extended out-
wardly two sides and cover plate e of a hood of suitable dimensions and
capacity to direct the products of combustion from the fire into the chimney. A
quadrant-shape plate f hinged to the sides of the hood so that the said
quadrant plate can be turned outwardly on its axis f¹ as shown in full lines to
form part of the hood, or inwardly as shown in dotted lines to close the passage
into the chimney, the quadrant being struck and centred to a suitable radius and
fitted endwise between the sides of the hood for this purpose, provision being
made such as the stop piece e¹ to limit the outward movement when the quadrant
has reached the position in which it completes the intended shape of the hood.
On the other hand provision is made such as the back plate c¹ for supporting the
quadrant at its extreme inward position at which it serves to close the opening into
the chimney. The quadrant is placed in the inward or outward position according
as the fire cover is over the fire or removed therefrom, a convenient way of
removing it being to slide it inwardly on to the back plate gl.
In order to vary the fire space the fire bars h are made adjustable in position at
will and in the following manner. They are hinged to the range front i to hang
therefrom, the stove back j being curved to the radius of the bars so that the

page_text: free ends thereof swing close past the stove back. A rack or its equivalent is
hinged to the lower end of the fire bars to trail over the edge of the range front
against which the teeth of the rack become locked in the manner adapted to hold
up the bars in the position to which they have been pushed to reduce the fire
space. This construction provides for any desired number of adjustments of the
fire bars and the rack is clear of the fire. The position of the fire bars shown
in Fig. 2 in full lines represents the fire space with an enlarged capacity and
that shown by the dotted lines represents the fire space with a diminished capacity.
m is the usual boiler placed behind the stove back,and n, n¹ and n² are the
passages for the products of combustion when the fire is closed in by the cover
plate g to be used as a cooking range.
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. The combination in cooking ranges of the kind to which my invention is
applicable, whereby a passage into the chimney such as a can be kept open or
closed, of a hood extending over the fire and having a quadrant-shaped end
pivotally centred to the sides thereof to be set to an outward or inward position
all arranged and adapted substantially as and for the purpose hereinbefore
specified with reference to the accompanying drawing.
2. The use and arrangement as hereinbefore specified and illustrated in the
accompanying drawing of fire bars such as hinged to the range front and adapted
to swing close past a stove back curved to the proper radius, the said bars being
adjustable as fixtures in any position by means of a rack such as k or its equivalent,
substantially as and for the purpose set forth.
3. An improved cooking range provided with a combination of devices com-
bined, arranged and adapted for their special uses substantially as hereinbefore
specified with reference to the accompanying drawing.
D
1
11
1
1000
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees, and Hull,
Agent for the Applicant.