A Cooking Range Adapted to Burn either Coal or Gas or both.
Year: 1894

page_text: Date of Application, 20th Aug., 1894-Accepted, 13th Oct., 1894
I DECIFICATION
COMPLETE
A Cooking Range Adapted to Burn either Coal or Gas or both.
I, ALBERT STECKE of No. 1 Georgstrasse, Osnabruck, in the Empire of
Fermany, Manufacturer, do hereby declare the nature of this invention and in what
banner the same is to be performed to be particularly described and ascertained
and by the following statement :-
The present invention relates to a cooking range which is adapted to be heated
ither by means of coal or solid fuel alone or gas alone or both gas and solid fuel
t the same time.
is illustrated in the accompanying drawings in
cooking
A Cooking Range Adapted to Burn either Coal or Gas or both.
I, ALBERT STECKE of No. 1 Georgstrasse, Osnabruck, in the Empire of
Germany, Manufacturer, 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 :-
The present invention relates to a cooking range which is adapted to be heated
either by means of coal or solid fuel alone or gas alone or both gas and solid fuel
at the same time.
L
The improved cooking range
which :-
is illustrated in the accompanying drawings in
Fig. 1 is a vertical section through the range on the line x-x of Fig. 2.
Fig. 2 is a plan.
Figs. 3 to 10 are detail views, and
Fig. 11 shows one of these details applied to an ordinary gas cooking range.
The range is made of suitable material such as wrought iron or cast iron and
comprises mainly a simple grate fire-place A (which can be charged with fuel
either through the cooking hole a in the top plate or through a side firedoor) two
upper fixed gas burners B B¹ for cooking and two lower fixed burners C for heating
the roasting oven D.
The gas used is taken from any suitable supply pipe and is led by a flexible or
other suitable pipe to the mouthpiece b and thence distributed by the transverse
pipe c in such a manner that each burner can be shut off separately by means of
ordinary shut-off taps cocks or valves d d'.
The oven (for roasting and baking or other cooking operation) which is clearly
shown in Fig. 1 is divided into two compartments by means of the lower plate E
see Figs. 1 and 4 (which is formed with an elongated opening or slot e for the
passage of the burners C) and the upper plate F (see Figs. 1 and 3) which has
lateral cut-away portions ff provided for the passage of the heating gases.
Access to the inside of the oven is provided in the usual manner at the front
end of the range and the same is closed by a falling door or other suitable
arrangement.
The peculiar arrangement of the plates E and F causes the heating gases from
the burners C to flow uniformly round and envelop the joint or dish being roasted
or baked on the plate F.
In the arrangement shown in Fig. 1 the oven part is arranged solely for being
heated by gas.
If the range is to be heated by means of coal it is necessary to protect the gas
burners from the action of the fuel gases and this is effected in a simple manner by
placing a protective hood or cap over the same.
The burners C for the oven are advantageously protected by means of the
protective hood or cap E¹ shown in Fig. 5 which is provided with two hoods e¹ e²
that fit over the burners C. E' is placed into position through the oven door.
The upper burners B B¹ are protected by means of the protective hoods B*
(shown to a smaller scale in Fig. 6) which fit in the ordinary holes in the top plate
over said burners B and B respectively.

page_text: When coal firing is employed the heating gases travel from the fire-place A
through the range and either travel around the oven or escape direct through the
smoke or outlet pipe G into the chimney-according to the position of the
regulators or dampers m and m¹.
The heating gases are caused to travel in the simplest manner by means of the
partition W shown in Fig. 2 and following arrangement :-
The gases produced in the fire-place A pass (as indicated by the arrows I)
through the flue n (which is always open) over the top of the oven round the
partition W and back to the opening n² over the top of the oven (when the said
opening n is not closed by the damper m) and so to the outlet pipe G.
When it is desired to heat the oven the damper m is closed and the damper m² is
opened and consequently the gases follow the course shown by the arrows II under
the oven and thence through the outlet n² (controlled by said damper m) into the
smoke pipe G.
Thus when n¹ is closed and n³ is open the heating gases are compelled to first
travel over and completely round and under the oven before they can escape into
the smoke pipe.
When it is desired to heat the range with coal and gas at the same time the
burners B B are protected from the fuel gases and smoke by means of the pro-
tective hoods or collar pieces B³ shown in Fig. 7 in vertical section and in Fig. 8
in plan. These hoods or collar-pieces are made to fit closely round the neck of the
burner by means of sliding plates p to fit so closely around the burner that the
burners are completely prevented from direct contact with the fuel gases or
smoke.
When it is desired to heat a number of pots at the same time over a gas flame
the covers P (shown in Fig. 9 in perspective view and in Fig. 10 in vertical
section) are then placed over the cooking holes in the range plate. These covers
are formed from sheet iron or sheet steel and are formed by pressing same with
concentric grooves p' between which the metal sheet is pierced with a number of
holes.
Covers of this kind have the advantage over those made of cast iron (see pl
Fig. 11) and the like that they will not become warped by great heat and will not
crack whilst they readily allow the heat to pass through them and they distribute
such beat very uniformly.
This cover may also be used with advantage in other gas-fired ranges. It is
shown by way of example in Fig. 11 applied to an ordinary small gas cooking and
roasting range.
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. A cooking range adapted to be heated by means of either coal or gas or both
having fixed gas burners such as B B and C arranged in the draught flues of the
range and in combination and acting in conjunction with protective hoods such
as E and B from the action of the fuel gases or smoke when coal alone is being
burned substantially as and for the purposes herein before set forth.
2. The combination with the cooking range specified in Claim 1 of a protective
collar-piece or hood such as B³ adapted to fit around the neck of the burner the
aperture in said collar-piece being capable of being adjusted closely around the
neck of said burner by means of sliding plates p so as to prevent the fuel or smoke
from penetrating to the burner for the purpose of enabling the range to burn
coal and gas at the same time substantially as and for the purposes herein before
set forth.
3. A cover pressed from sheet metal with grooves p¹ therein adapted for use in
cooking ranges of the character specified substantially in the manner and for the
purposes hereinbefore set forth.

page_text: 4. The improved cooking stove arranged constructed combined and acting
substantially in the manner and for the purposes hereinbefore described and
illustrated in the drawings hereunto annexed.
Dated this 20th day of Avoust 1894.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.