IMPROVEMENTS IN COOKING ANGES
Year: 1884

page_text: I GEORGE BIRKITT Ironfounder Excelsior Foundry Siddals Road Derby do
reby declare the nature of my invention for IMPROVEMENTS IN COOKING
ANGES to be as follows namely:-
The construction of what are technically called "Short Front" Cooking Ranges
hore especially "Uniform" Ranges).
1 With Fire Bars screwed on to the front of side panels and not at the back
thereof as formerly done.
2nd With an unbreakable Boiler having the bottom slightly domed in Centre
and with Curvilinear outlines instead of Right Angles.
3rd With the Hinge to Boiler lid on the underside of same so that there is no
ridge or projection on the face of hob to interfere with vessels or utensils
placed thereon.
4th With the Pin or Pivot of the Boiler hinge formed of Brass or other non
corrosive material to prevent rusting.
5th With the hinge gate cast on fire bars and not on side of panels as formerly.
6th With dovetail slot cast on back of each side panel to receive back leg instead
of being screwed on.
11

page_text: و"
EORGE BIRKITT Ironfounder Excelsior Foundry Siddals Road Derby do
declare the nature of my invention for IMPROVEMENTS IN SHORT FRONT
IER COOKING RANGES and in what manner the same is to be performed, to
ticularly described and ascertained in and by the following statement:―
construction of what are technically called "Short Front" Cooking ranges
especially "Uniform" Ranges.
With fire bars screwed on the face of side panels or "Fronts" (see A a B b
Figs 1. 2 and 5 on Folio) and not at the back thereof as formerly done.
With an unbreakable Cast Iron Boiler having the bottom domed in the
centre (See Figs 6 and 9) and with Curvilinear outline (See G G Figs 7
and 9) instead of right angles.
With the hinge to boiler lid on the underside of same so that there is no
ridge or projection on the face of hob to interfere with vessels or utensils
placed thereon (See Fig 10).
With the Boiler Lid hinged to the frame or hob in a kind of Automatic
manner with two pins or pivots cast on the Lid (See J J Fig's 13 14. 15)
and fitting into corresponding holes or sockets in the frame (See K K
Fig 12) and the whole retained in its place by a Brass or Metal slide
(See H Figs 10 and 11).
With the member termed the "Hinge Gate" cast on the outer edge's of
Fire bar's & not on side of "Fronts or panels as formerly done.
With the Damper frame's formed with a notch (See R R Fig 20) or slit at
the back end of each for the purpose of fitting them to the Back leg's.
With the Back leg in such a form that no screw's are necessary to keep it in
its place but with a dovetail end (N Figs 18 and 19) adjusted to fit into a
dovetail Socket (M Fig's 4-16 and 17) at back of each "Front" or panel
and a small projection (P Figs 6. 8. 19. 21 and 22) on the upright part of
Back leg to retain Damper frame's (S Figs 6. 8 and 22) in their proper
position's.
With a dovetail Socket (M. Fig 4. 16 & 17) cast on back of each "Front"
or panel to receive one end of Back leg shaped (N Figs 18 and 19) so as to
fit the socket and retain the same in its position automatically instead of
being fixed with screw's as formerly_done..
With a notch in upper edge of Boiler "Front" or panel (E Fig 4) and a
corresponding projection on under side of Boiler frame or Hob to adjust
the two parts without the aid of screw's.
With two projecting Lugs (L L Figs 8-16. 21 & 22) on back side of Short
front each Lug forming a slot or socket into which a flange (C Figs 3.
and 8) on lower front edge of the Oven fits and assisted by the Lug
(D Fig 3) thereby adjusts the Oven and short front without the aid of pins
and hole's as hitherto employed for this purpose.
With a Flange on lower front edge of Oven (C Figs 3 and 8) made to fit
into the Lugs (L L Fig's 16. 21 and 22) and against (D Fig 3) and described
in Section (10 above) thus making the several castings and parts of Range
self adjusting and rendering screw's and fitting almost unnecessary.
aving now particularly described and ascertained the nature of my said
ntion and in what manner the same is to be performed I declare that what
im is
The mode of attaching Fire bar's to the "Fronts
before described
"
or side panel's as herein-

page_text: 2nd The Unbreakable Cast Iron Boiler having domed and curvilinear shape as
herein before described.
3rd The mode of Hinging the Boiler lid as hereinbefore described.
4th The mode of adjusting Damper frame's to Back leg which prevents them
being displaced as herein before described.
5th The mode of adjusting Oven to Short front by the mean's of Flange and
Lug's as herein before described.