Improvements in and relating to Cooking Ranges.
Year: 1893

page_text: Date of Application, 14th Jan., 1893.
Complete Specification Left, 13th Oct., 1893-Accepted 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Cooking Ranges.
I, ROBERT FLeming McAdam, of 7 Prince Edward Street, Crosshill,
Renfrewshire, Foreman Range Fitter, do hereby declare the nature of my invention
to be as follows:-
This invention has reference to improvements in cooking ranges and comprises
improved flue fittings for converting the range into a close or open fire range as
required.
In
In carrying my invention into practice I use a sliding hood of inverted channel
section with Hat top and vertical sides much of a usual construction, guided to slide
on the horizontal top plate of the range and through an aperture in the vertical
cove plate of the range. But by my improvements I fit an oscillating or rocking
flue frame preferably cast in one piece which shall be operated by the movements
of said hood to act as a flue shutter and close or open the front exit to same,
according as the hood is pushed in or drawn out to form a close or open fire range
respectively, the said rocking frame also forming a combined back flue plate to
permit or regulate the passage of the smoke to the flue when used as a close fire
range and also close the back opening in top of hood when used as an open fire
range. This flue frame forming a combined shutter and back flue plate consists in
the open position of the range of a lower flat or slightly angled shutter plate, two
vertical sides and a top plate mounted over said sides leaving a front open space
from frout to back. It is formed with a slit in the lower part of one of its vertical
sides and a hole or corresponding slit through the other side, and is mounted by
these apertures to oscillate or rock on horizontal fixed pins or centres projecting.
out from vertical stems secured to the hob within the line of traverse of the
sliding hood. The vertical sides of the frame are formed or fitted at their front
ends with duplex upper and lower projecting lugs or parts on either surface; and
the front part of the movable hood is formed with single projecting lugs which act,
when the sliding bood is pushed inwards on and between the projections on the
rocking frame and so oscillate it on its centres to bring the bottom plate surface up
vertically to effectually close the exit front space of the movable hood; and the
same action makes the top plate of frame to oscillate or move over to a vertical
position and leave an opening in the inner top part of hood to permit the upward
passage of the smoke within the flue. When the sliding hood is pulled outwards
the projections on same acting on the lower lugs of the frame oscillate it so that
its front plate is brought from the vertical close position to lie in a horizontal or
inclined position above the hob base, and the same action brings the back plate
part of frame to a horizontal position covering the open space in roof of hood in
front of the cove plate and form a flue through the hood when the range is acting
as an open fire range. The back plate would preferably be cast on ribs projecting
from the sides of the flue frame, or be cast on or secured to a transverse bar
extending from and secured to the top of each vertical side of the oscillating flue
frame, and said plate would be made of a size to cover the inner open space of
sliding hood in the open position of the fire, a flange or back rail being formed on
plate to come against cove plate to cover up the opening above hood and also act
as a stop to prevent its being withdrawn too far, while stop pins would 'preferably
be fitted in front of back plate to enter recesses in movable hood and prevent the
latter being drawn out too far.
T
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents

page_text: COMPLETE SPECIFICATION. .
Improvements in and relating to Cooking Ranges.
I, ROBERT FLEMING MCADAM of 7 Prince Edward Street, Crosshill Renfrew-
shire, Foreman Range Fitter, do hereby declare the nature of my invention, and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement in writing that is to say :-
This invention has reference to improvements in cooking ranges and comprises
improved flue fittings for converting the range into a close or open fire range as
required.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, I have hereunto
appended an explanatory sheet of drawings in which the same reference letters are
used to indicate corresponding parts in all the figures where shown. Figure 1 is a
front elevation half in section, Figure 2 a corresponding plan, and Figure 3 a
transverse section of the upper part of a cooking range showing my improved flue
fittings as applied thereto."
Referring to these drawings:-
-
In carrying my invention into practice I use a sliding hood A. of inverted
channel section with flat top and vertical sides much of a usual construction, guided
to slide on the horizontal top plate C. of the range and through an aperture in the
vertical cove plate C¹ of the range. But by my improvements I fit an oscillating
or rocking flue frame a preferably cast in one piece which shall be operated by the
movements of said hood A to act as a flue shutter and close or open the front exit
to same, according as the hood A is pushed in or drawn out to form a close or
open fire range respectively, the said rocking frame a also forming a combined
back flue plate a² to permit or regulate the passage of the smoke to the flue when
used as a close fire range and also close the back opening A¹ in top of hood-when
used as an open fire range. This flue frame a forming a combined shutter and
back flue plate consists in the open position of the range as shown in dotted lines
Figure 3 of a lower flat or slightly angled shutter plate a' two vertical sides a and
a top plate a mounted over said sides leaving a front open space from front to
back. The flue frame a is shown as formed with projecting pins or centres 6 which
turn or oscillate in slotted brackets 61 mounted on the hob within the line of
traverse of the sliding hood A. The vertical sides a of the frame are formed or
fitted at their front ends with duplex upper and lower projecting lugs or parts 61
on either surface; and the front part of the sides of the movable hood A is formed
with single projecting lugs A" which act, when the sliding hood is pushed inwards
on and between the projections on the rocking frame a and so oscillate it on its
centres to bring the bottom plate surface a' up vertically to effectually close the
exit front space of the movable hood A, and the same action makes the top plate a
of frame to oscillate or move over to a vertical position and leave an opening A
in the inner top part of hood A to permit the upward passage of the smoke within
the flue all as indicated in sharp lines in Figure 3. 'When the sliding hood A is
pulled outwards the projections A" on same acting on the upper lugs 6 of the
frame a oscillate it so that its front plate a¹ is brought from the vertical close
position indicated in sharp lines Figure 3 to lie in a horizontal or inclined position
above the hob base as shown in dotted lines, and the same action brings the back
plate part a³ of frame to a horizontal position covering the open space A' in roof
of hood A in front of the cove plate and forms a flue through the hood when
the range is acting as an open fire range. The back plate a³ would preferably be
cast on ribs a projecting from the sides a of the flue frame, or be cast on or
secured to a transverse bar extending from, and secured to the top of each vertical
side a of the oscillating flue frame, and said plate a would be inade of a size to
cover the inner open space A' of sliding hood A in the open position of the fire, a

page_text: flange or back rail a' being formed on plate a² to come against cove plate Clas
dotted in Figure 3 to cover up the opening C² above hood A and also act as a
stop to prevent its being withdrawn too far, while projecting ridges A' or stop
pins would preferably be fitted at back of movable hood to come against the
parts C³ of cove plate and prevent the hood A being drawn out too far.
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 :-
:-
First. In cooking ranges, the fitting and use of an oscillating or rocking flue
frame, which shall combine within itself a front shutter and back flue plate, and
be operated by the sliding hood to form a close or open fire range respectively,
substantially as set forth.
Second. In cooking ranges the constructing of an oscillating or rocking flue
frame with vertical sides and bottom and top plates in its open fire position, the
top plate in said position closing the back opening in top of hood, and when used
as a close fire range, said top plate is oscillated and forms a back flue plate to
regulate the passage of the smoke, while the bottom plate now forms a front
shutter for flue, substantially as herein described in reference to and shown in the
accompanying drawings.
Dated the 12th October 1803
WR.-M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.