Improvements in and relating to Cooking Ranges.
Year: 1893

page_text: Date of Application, 20th Jan., 1893
Complete Specification Left, 20th Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Cooking Ranges.
We, the Firm of SMITH AND WELLSTOOD, LIMITED, Stove and Range
Manufacturers and General Ironfounders, of Bonnybridge, Stirlingshire and
GEORGE REID URE, Managing Director of said firm, do hereby declare the nature
of our invention to be as follows:-
This invention has reference to and comprises improvements in and relating to
the flue and damper appliances of convertible close and open fire or cooking ranges.
The improvements consist, first, in casting or forming two snugs or eyes on the
lower ridge plate of the vertical fixed flue pipe of the range; and in casting or
forming corresponding hooks at the back upper edge of a swing door or shutter
plate. These hooks on the shutter plate are inserted into the hollow snugs on the
bottom plate of vertical flue so as to hinge or secure said shutter to swivel thereon
within the movable hood. The movable hood would consist of a channel frame
with vertical sides, and open front, top, and back; and segmental or curved
projecting inclines or grooves would be formed on the inner surface of each of its
vertical sides for the projecting side edges of the hinged shutter to rest and be
operated on. In converting the range from a close to an open fire the sliding hood
is drawn out, and the projecting side edges of the hinged shutter rest over the side
inclines of hood, so that in the extreme outward position of the latter the shutter
plate will lie forward at a slight incline from the horizontal, having its front edge
below the top front rail flange of movable hood, and so act as a cover to the flue on
top of movable hood. While in converting the range into a close fire, when the
movable hood is pushed inwards the hinged shutter plate will by gravity swivel or
slide downwards over the inclines to a vertical position and so close the inlet exit
to flue through front of movable hood while the smoke will pass up through the
open top back part of the hood to the vertical flue above it.
The damper in the direct flue below the vertical flue and sliding hood and above
the vertical fire brick of range is mounted by end journals or spindles at its upper
edge to swivel from above in bearings below the top surface of the hob plate, and
has a crank arm cast or formed on one of its end journals which is connected at its
other end by a swivel or other joint to the one end of a movable link. The other
end of this link has a knob or handle formed on it projecting up through a T slot
in the back part of bob plate, so that by sliding this knob to either position of
the slot the damper is swivelled to respectively close or open the fire exit to vertical
flue.
تيمد
T
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION. .
Improvements in and relating to Cooking Ranges.
We, the Firm of SMITH AND WELLSTOOD, LIMITED, Stove and Range
Manufacturers and General Ironfounders, of Bonnybridge, Stirlingshire, and
GEORGE REID URE, Managing Director, of said firm, do hereby declare the
nature of our invention, and in what manner the same is to be performed to be
particularly-described and ascertained in and by the following statement in writing,
that is to say :-
This invention: has reference to and comprises improvements in and relating to
the flue and damper appliances of convertible close and open fire or cooking ranges.

page_text: And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood we 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 perspective elevation and Figure 2 a sectional side elevation of the
upper flue part of a cooking range with our improvements applied thereto, the
movable hood being shown in its closed position to form a close fire;
Figure 3 is a view showing the movable hood in its opened out position to form
an open fire.
Figures 4 and 5 are detached front and plan views respectively of the movable
hood showing the projecting inclines which operate the hinged shutter plate.
Figures 6 and 7 are elevations looking at the front and back surfaces respectively
of the hinged shutter plate and Figure 8 an edge view thereof; while
Figure 9 is a detached elevation of the lower ridge plate of vertical flue showing
the snugs to which the movable shutter is hinged.
And
Figures 10 and 11 are a detached perspective elevation and sectional view
respectively showing the damper and its improved fittings.
Referring to these drawings:-The improvements consist, first in casting or
forming two snugs or eyes a, a, on the lower ridge plate A' of the vertical fixed
flue pipe A of the range; and in casting or forming corresponding hooks a¹, a', at
the back upper edge of a swing door or shutter plate a'. These hooks a' on the
shutter plate a' are inserted into the hollow snugs a on the bottom plate A¹ of
vertical flue A, so as to hinge or secure said shutter to swivel thereon within the
movable hood. The movable hood consists of a channel frame B with vertical
sides B', and open front, top, and back; and segmental or curved projecting
inclines or ribs b, are formed on the inner surface of each of its vertical sides B,
for the projecting side edges a¹¹ on the back surface of the hinged shutter a* to rest
and be operated on. In converting the range from a close fire, as shown in
Figures 1 and 2, to an open fire, the sliding hood B, is drawn out, to the position
shown in Figure 3, and the projecting side edges all of the hinged shutter a² rest
over the side inclines 6 of hood B, so that in the extreme. outward position of the
latter the shutter plate a² will lie forward at a slight incline from the horizontal, as
shown in Figure 3, having its front edge below the top front rail flange or
moulding B of movable hood and so act as a cover to the flue on top of movable
hood. While in converting the range into a close fire, as shown in Figures 1 and 2,
when the movable hood is pushed inwards the hinged shutter plate a' will by
gravity swivel or slide downwards over the inclines to a vertical position, as
shown in Figure 2, and so close the opening to flue through front of movable hood
while the smoke will pass up through the open top back part of the hood to the
vertical flue above it as indicated by the arrows in Figure 2.
The damper D in the direct flue C, below the vertical flue A, and sliding hood B,
and above the vertical fire brick C', of range is mounted, as shown in Figure 10, by
end journals or spindles d, d, at its upper edge to swivel from above in bearings
below the top surface of the hob plate D', and has a crank arm d' cast or formed
on one of its end journals d which is connected at its other end by a swivel or other
joint to the one end of a movable link d. The other end of this link has a knob
or handle d", formed on it projecting up through a T slot D' in the back part of
hob plate D', so that by sliding this knob d" to either position of the slot D', the
damper D, is swivelled to respectively close or open the fire exit to vertical flue A¹,
the damper D being shown in its open position in sharp lines, and in its closed
position in dotted lines in Figure 2.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First. In cooking ranges the mounting of a swing door or shutter plate, by hooks
and eyes. on the lower ridge plate of vertical fixed flue, to act in combination with

page_text: movable hood in converting the range from a close to an open fire and vice versa,
substantially as and in the manner herein described in reference to and shown in
the accompanying drawings.
Second. In cooking ranges, the fitting and use of the damper with the improved
actuating mechanism herein described in reference to and shown in the
accompanying drawings.
101
1
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.