IMPROVE- MENTS IN FIRE STOVES AND GRATES
Year: 1885

page_text: I, MAX SCHNEIDER at Doos near Nuremberg in the Kingdom of Bavaria
Foreman do hereby declare the nature of my said invention for "IMPROVE-
MENTS IN FIRE STOVES AND GRATES," and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
The purpose of the present invention is the attainment of a simple and rational
regulation of the fire and admission of air into the stove, and further to facilitate
with the removal of the grate partly with a view to cleaning it and partly to
replace it by new pieces in case of need.
Fig. 1. illustrates one of the regulating contrivances in question here. The
substance of this contrivance consists therein, that by shutting & opening the fire-
door an air-aperture can be opened or closed accordingly.
A is the fire-door on to which is fixed a revolving regulating-roset f, which moves
together with the male-screw guided by A.
bb are supports in which rests a removable iron-bar c, d is the so called fire-
wall. The latter bas a bend underneath the bed of the grating and in it a
weighted flap-valve e moveable to and fro. This flap-valve serves to close an
opening q and to produce a counter-draught.
By opening the regulating-roset f (by screwing back 1) the flap-valve e will by
reason of its own weight move bar c forwards and close the opening q; by screwing
up the male-screw it will push the bar c from it and open e. By this means it
is possible to keep up a strong or low fire according to liking, by regulating the
draught as above described.
Fig. 2 illustrates another contrivance for regulating. The regulating effect is
produced in this case by a ring O, which is provided with 2 openings, one of which
corresponds with an opening v made either in the front part or in the side of the
stove, whereas the other communicates with the draughts of the smoke-pipe. The
arrangement of the openings in the ring is such, that one of the openings made in
the stove and already mentioned is always covered by the ring.
If the ring applied to the front-part or side of the stove is open that is to say,
if the ring O is in such a position that its corresponding opening does not cover
that in the stove, then the stove-opening leading to the smoke-pipe is closed by
the ring. In this case fresh air streams in to the fire; when the ring is in another
position, that is to say, when the front or side opening of the stove is closed, the
ring-opening will keep the draughts of the smoke-pipe free; a counter-draught will
arise in such a case under the grating and the fire will burn lower,

page_text: The contrivance for removing or exchanging the fire-grate, as mentioned at the
beginning of this description, represents a very material innovation. It consists
therein, that the mantle or shell of the stove (of the ready mounted stove) has a
sufficiently large piece cut out of it, and this opening is closed by means of plate g
made to screw on (fig. 1). By unscrewing the latter the grating can be exchanged.
The new grate construction of the stove illustrated in fig. 1. consists firstly of a
grater, which revolves on its axes is provided with slits and either rests on a
tripod or is made movable on rollers, secondly of the sliding grate k which serves
to remove the slag and is fixed underneath grater, and finally of the shake-grate p,
which moves within a limited space.
The grate-construction shown in fig. 2 consists, on the contrary, of a receptacle m,
into which the fuel is put, and of a grate n revolving on its axes and fixed under-
neath m.
This grate can likewise be bedded on rollers.
A further innovation is to be found in the fire brick fillings a inside of the stove
on ring t (fig. 1) and on receptacle m (fig. 2.) in connection with the revolving
grates R. Fig. 1 and N. fig 2.
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 in stoves
I. The application of a regulating appliance consisting 1) of the roset f fixed on
the fire door a (fig. 1) and screwed backwards and forwards by male-screw 1, of
the bar c, which is made to slide backwards and forwards and rests free on
supports bb, 2 The flap-valve e placed in a bend at the back part of the stove
and serving to close an opening in the stove, all of which operate parts on one
another in the manner described, consisting of a ring O (fig. 2) provided in
such a way with 2 openings, that one of these openings either corresponds with
openings of the stove, in which case the ring closes the opening w leading to the
smoke-pipe and a draught of air streams into the fire-place, or the opening
corresponds with opening w leading to the smoke-pipe, in which case opening vis
closed by the ring and a counter-draught arises under the grating.
II. Grate-constructinons consisting 1) of a grater (fig. 1), which rests on a tripod h
moving on rollers, revolves on its axes, is provided with slits, and bears a shake-
grate p moving within a limited amplitude, in combination with the sliding grate k.
2) the grate-construction illustrated in fig. 2 and consisting of the combination of
the receptacle m with the revolving grate n.
III. The application of the plate g made to screw on and off and closing a
corresponding opening made in the mantle of the stove, for the purpose of removing
or exchanging the grating and to facilitate the cleaning of the stove.
IV. The combination of the fire brick fillings arranged in the inside of the stove
on frame t. Fig 1 and on receptacle m (fig. 2.) with the revolving grates r (fig. 1)
and n. (fig. 2.)