Improvements in Cooking Ranges.
Year: 1889

page_text: Date of Application, 13th Dec., 1889
Complete Specification Left, 4th Oct., 1890-Accepted, 8th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Cooking Ranges.
I, HOWARD MATRAVERS ASHLEY, of Ferrybridge, in the County of York, Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention has reference to improved constructions of cooking ranges, some of
the improvements having reference to the invention described in my Specification
No. 324 of 1882. In this Specification I described an arrangement in which a
channel that led the air supply from the outside of the house or from the cellar or
other place to the front and underside of the fire grate, was covered by a plate having
a flat sliding valve, by means of which the quantity of air admitted into the room in
front of the fire place, and under the fire place could be regulated. According to my
present invention I construct the said plate with a semicylindrical hollow projection
having a number of longitudinal slots through which the air from the supply channel
can enter the room.
Within this projection is a semicylindrical slide capable of being turned by a handle
on its longitudinal axis.
In the one position of this slide it entirely closes the openings in the semicylindrical
projection, and in the opposite position it closes the channel of supply and thus
prevents any air from entering the room from the channel. On turning the slide into
intermediate positions, so as to cover some of the openings and uncover others of them
air can enter the room in a current directed either towards the fire or away
from it.
I also, according to my present invention, construct the side cheeks of cooking
ranges in the following manner. Instead of making such a cheek of a single plate as
usual, I construct it of two plates the one which is smaller than the other lying in a
recess thereof. When a "fall crow" is employed, I arrange it to lie in a recess of the
smaller cheek so that there are no hinges projecting to take up room in the fire space.
The lower part of the larger cheek is adapted to hold a fire brick slab in contact with
the fire. The "fall crow "has two pegs or pivots at its ends which slide in vertical
grooves provided in the recess of the smaller cheek, so that when the pegs are slid
down in these grooves, the fall crow lies within the recess of the cheek when it is raised,
and it can be turned down on the pegs or pivots as on a hinge.
In cooking ranges which have low ovens covered by a hot plate, the draught of the
fire has to pass first between the hot plate and the crown of the oven and then down
against the outer side of the oven and up through the back flue. This arrangement
requires a very considerable draught and necessitates the closing of, the fire front,
involving great consumption of fuel. In order to lessen this, I provide in addition
to the ordinary central cooking fire, a second small fire contained in part of the space
between the crown of the oven and the hot plate and fed with fuel through a hopper
at the upper part of the oven. I cut off the central fire from communication with the
oven, which as well as the hot plate, is heated by the auxiliary fire.
The central fire can then be made to work on the slow combustion principle;
and if only the oven and hot plate are required to be used, the central fire may
be dispensed with.
Dated this 13th day of December 1889.
ABEL & IMKAI,
Agents for the Applicant.

page_text: Improvements in Cooking Ranges.
I HOWARD MATRAVERS ASHLEY, of Ferrybridge in the County of York, 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:
My invention has reference to improved constructions of cooking ranges, some of
the improvements having reference to the invention described in my Specification
No. 321 of 1882. In this Specification I described an arrangement in which a channel
that led the air supply from the outside of the house or from the cellar or other place
to the front and underside of the fire grate, was covered by a plate having
a flat
sliding valve, by means of which the quantity of air admitted into the room in front
of the fireplace and under the fireplace could be regulated. According to my present
invention I construct the said plate as shewn in transverse section by Figure 1 of the
accompanying drawings in longitudinal section by Figure 2 and in side elevation by
Figure 3 with a semicylindrical casing A having a number of slots B through which
the air from the supply channel C can enter the room. Within this projection is a
semicylindrical slide D capable of being turned by a handle or other device on its
longitudinal axis. This slide can be turned to a position to close the openings B,
and thus to prevent any air from entering the room from the channel, C. Or the
slide can be turned into intermediate positions so as to cover the openings B on one
side and uncover those on the other side so that air can enter to the room in a current
directed either away from the fire as indicated by the arrow in Figure 1 or towards.
the fire F as indicated by the dotted arrow.
In cooking ranges which have low ovens covered by a hot plate, the draught of the
fire has to pass first between the hot plate and the crown of the oven and then down
against the outer side of the oven and up through the back flue.
This arrange-
ment requires a very considerable draught and necessitates the closing of the fire
front involving great consumption of fuel. In order to lessen this I provide as shewn
in front view Figure 4 and section Figure 5 in addition to the ordinary central cooking
fire, a second small fire contained in part of the space between the crown G of the
oven and the hot plate H and fed with fuel through a hopper K at the upper part
of the oven. I cut off the central fire from communication with the oven which as
well as the hot plate, is heated by the auxiliary fire. The central fire can then be
made to work on the slow combustion principle; and if only the oven and hot plate
are required to be used, the central fire may be dispensed with. At the lower angle
of the small fire place over the side flue L of the oven I pivot or fit a barred frame
or grate M shewn in plan by Figure 6 which can be rocked or turned by hand to
drop ash, or can be drawn out.
"
I also according to my present invention, construct the side cheeks of cooking
ranges commonly known as "high oven or "Yorkshire ranges" as shewn in front
view by Figure 7 in vertical section by Figure 8, and by Figure 9 which is a sectional
plan of the lower part. Instead of making such a cheek of a single plate as usual, I
construct it of two plates P, Q shown respectively by Figures 10 and 11, the one Q
smaller than the other P and lying in a recess thereof. When a "fall crow" R is
employed I arrange it to lie in a recess of the smaller cheek Q, so that, there are no
hinges projecting to take up room in the fire space. The lower part of the larger
cheek Pis adapted. to hold a fire brick slab S in contact with the fire. The "fall
crow." R has two pegs or pivots at its ends which slide in vertical grooves provided
in the recess of the smaller cheek Q, so that when the pegs are slid down in these
grooves, the "fall crow lies within the recess of the cheek when it is raised, and it
can be turned down on the pegs or pivots as on a hinge.
"

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. For governing the air supply in front of a cooking range a slotted casing and
revolving slide substantially as described with reference to Figures 1, 2 and 3.
2. For heating an oven independently of the range fire, the arrangement of a
secondary small fire and its feeding hopper and grate above the crown of the oven
and under the hot plate, substantially as described with reference to Figures 4,' 5
and 6.
3. Constructing the side cheeks of cooking ranges in two plates, the one smaller
than the other, lying in a recess thereof and itself recessed when required to hold a
fall-crow hinged to it, substantially as described with reference to Figures 7, 8, 9, 10
and 11.
ABEL & IMRAY,
Agents for the Applicant.