Improvements in Kitchen Ranges and the like.
Year: 1899

page_text: Date of Application, 23rd Oct., 1899-Accepted, 25th Nov., 1899
COMPLETE SPECIFICATION.
Improvements in Kitchen Ranges and the like.
I, JACOB SCHALK, of Dürkheim, Rhinepfalz, in the German Empire, Professor
of Music, 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:-
This invention relates to improvements in kitchen ranges and the like, and
has for its object to provide a fire place of very simple and cheap construction
producing little or no smoke and economical in the consumption of fuel. The
improved fire place is very effective in heating the ovens and other chambers
or vessels and hot plates, the heated air and gases being caused to pass through
flues of special arrangement and without any tendency to check the draught
which is likely to occur where ordinary flues are used.
Assuming the invention to be applied to a kitchen range in which the fire
place can be used either open or closed, with a baking oven above and hot
chambers or boilers at the sides and also extending in the usual way across the
back of the fire place a hot plate being provided, a framework preferably of cast
or wrought iron plates screwed or bolted together is employed. Behind the said
fire place or furnace having bars, preferably vertical in front and grate bars of
the usual kind to support the fuel, I place a fire-proof stone of such dimensions
as to overlap the said fire place on both sides. This stone is provided with a
large aperture at the front which communicates inside the stone with two pass-
ages separated from each other by bifurcating partition of the same.
The two passages or branches are prolonged by metal pipes or casings of suit-
able material to the back of the range, whence they turn round in such a manner
as to embrace the side chambers and then forming each an ascending flue, unite
again to a single flue underneath the hot plates before entering the chimney.
By this arrangement the heated air and gases are compelled to first pass
through the fire proof stone, whence being divided into two branches, they
circulate round and underneath the chambers to be heated and traverse a way of
considerable length before escaping through the chimney.
Experience has proved that by such an arrangement a uniform and extensive
heat is produced in the whole range, so that baking boiling and frying may be
simultaneously performed on and in the range.
The accompanying drawing shows an illustration of the improved construction.
Fig. 1 is partly a front view of the range and partly a vertical section of the
same.
Fig. 2 a cross section of the range.
Fig. 3 a horizontal section, indicating the special flue arrangement, and
Fig. 4 shows in a top view how the two ascending flues re-unite underneath
the hot plates before entering the chimney.
The same letters of reference indicate the same parts in the several figures:
A is the framework of the range supported upon legs and containing the
baking oven a and lateral water boilers . The grate of the fire place f is indi-

page_text: cated by r, the fire proof stone t has a front aperture and two back openings oo,
the dividing partition inside the stone t being indicated by d.
The prolonged passages or casings of strong metal turn round as shewn in
Fig. 3, underneath the boilers ww and then ascending at both sides of the fire
place, re-unite underneath the hot plates in the space whence pipes (Fig. 2)
conveys the hot air and combustion gases to the chimney.
The perfect combustion of the smoke and hot gases from the fire is promoted
by the currents of air which are admitted from below to the fire place, and after
being heated pass through the fire proof stone, circulate round the chambers
to be heated and escape through the chimney.
Suitable dampers of the well known kind are arranged where necessary for the
purpose of guiding and regulating the currents of heated air and gases in the
direction required, and moveable doors may be provided for the removal of soot
when necessary.
The improvements described may be applied to any existing kitchen range or
the like, the main feature of this invention being the use of a fire proof stone
for dividing the current of hot air and gases, and the arrangement for re-uniting
the two branches again in one flue underneath the hot plate of the range.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. A kitchen range provided with a fire proof stone arranged behind the fire
place and having a front aperture which branches into two flues, these latter
being prolonged by pipes which pass under the baking oven and round the water
boilers at the sides of the fire place and ascending to the top re-unite underneath
the hot plates before entering the chimney, substantially as described and illus-
trated in the drawings.
2. The application of the arrangement characterised in the first claim to any
existing kitchen range or the like.
Dated this 23rd day of October 1890