Year: 1894

page_text: Date of Application, 16th Nov., 1894-Accepted, 22nd Dec., 1894
I, GEORG REINHARDT, Manufacturer of Stoves, in Dresden, Grosse Plauensche
Strasse 20, Kingdom of Saxony, German Empire, 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 invention has for its object magazine stoves in which a series of flues are
provided which are arranged round the magazine and bucket-shaped grate, and
these flues only pass up once through the stove from bottom to top, each taking up
its share of the gases of combustion formed in the grate, and delivering same into
the pipe leading into the chimney. A perfectly equal heating of the whole stove
is thus ensured. Besides this, the said flues which are carried down to the base of
the stove take up small quantities of air for the purpose of consuming the smoke
formed, or they can take up larger quantities, for cooling the stove, if requisite.
Finally, these straight flues by means of their downward prolongations can be swept
clean without breaking open the brickwork of the stove.
The accompanying drawing shows two different methods of carrying out the
magazine stove in question.
Fig. 1 shows a longitudinal section.
Figures 2 and 3, sections of a circular shaped stove.
Figures 4 and 5 vertical longitudinal sections, and
Fig. 6 the plan of a stove of rectangular section.
The section of the round stove is divided into 3 spaces; the interior space
consists of the magazine A and the grate B, the space round these is occupied by
the flues C, and the outer space is devoted to the ventilating channels D.
A peculiar feature of this stove, beyond those features already mentioned and
those to be described hereafter, is the building up of the central and highest part
with fire bricks of a certain shape (sometimes called pipe stones) a and b, which
form the outer limits of the magazine A and flues C. As shown in Fig. 2
the fire bricks in question have a sectional shape which enables them to be built up
so as to form a cylinder or a polygon (hexagon).
By means of the cavities a¹ in a and b in b, the flues C and also the ventilating
channels D are formed. Nevertheless the edges, and the parts adjoining the edges
of said fire-bricks fit closely together and also against the outer shell or mantle E,
in such a manner that a very firm stove can be easily built up which will resist the
evil effects of frequent changes of temperature without showing, as is very often
the case with other stoves, numerous cracks and interstices between the joints.
The layers of fire bricks formed by a and b are supported by cylindrical shells
of sheet iron c and d, which latter divide the base of the stove into three sections
in conformity with the upper part. At this part the furnace door e and the ash-pit
door fare built in; the filling of the magazine A takes place by means of the trap
door
g at the top of the magazine. Into the lower tapering part of A a funnel or
cone his inserted, which can be replaced by one with larger or smaller aperture
according to the amount of heat required of the stove. The larger the mouth of
the funnel, the greater the quantity of coals that can fall down from A, and the
quicker the combustion will take place. Between h and the grate B the bricks a
are perforated (as seen in Fig. 1 at a²) to enable the gases of combustion to escape
from the grate D into the flues C. In consequence of the equal section and equal
resistance offered, the gases of combustion will be equally distributed into the
flues C, and heat the stove uniformly. The said gases will unite in smoke box F

page_text: and pass into chimney G. Only the sixth part of the section of the space occupied
by the flues C would not be heated directly, viz. that space which is occupied by
the three doors e, f and g, but even in this case the cavities formed by the bricks a
and b can be converted into active flues by means of lateral channels leading to the
adjoining flues C between the doors e and g.
Beneath said flue C, the plate i carrying the grate and resting on c and d is
perforated (see Fig. 3) and thus a communication is established between the flues C
and the ring shaped space H enclosed by c and d.
The channels k, which pass through the air space, lead into H and can be closed
from the outside by means of screws which are fitted with discs l, called rosettes, or
by other suitable means.
:
Instead of arranging these channels Kas in Fig. 3, they may be attached
directly to the frame of the ash-pit door. In the sheet iron mantle e there are
several openings provided which can be closed by slides m or other suitable
devices.
These openings are for the purpose of cleaning out the flues. The outer shell E
forms with d and the fire bricks b, a space for the circulation of the air of the
room, which enters through holes in the bed plate of the stove, and after being
warmed in D, leaves the stove by means of apertures in the cover of same, an
arrangement already known. As regards the working of the stove the following
can be added By opening the inlets more or less enough fresh air can be
admitted through openings K HI and C, to consume the smoke generated by the
fire. At the spot a where the combustion gases enter the flues & an intermingling
of the former with the fresh air takes place by which means a perfect combustion
of any consumed gas or particles of coal is effected thus preventing the formation of
smoke or soot. But in case the room should become too warm, the inlets 1, by
being fully opened will admit sufficient air through the flues C to cool the latter
and the stove considerably in a short time. The cleaning of the flues C is effected
very easily, as the ash dust passes through the apertures in i to H, from whence
it can be removed at m. In the prismatically shaped stove (Figures 4-6), with
the exception of its round shape and the substitution of ordinary brickwork for the
moulded bricks all salient points as described in the first stove are the same in this
one. There is the magazine A, the grate B, the flues C and the air channels D
surrounding three sides of A and B. The brickwork forming the magazine and
flues, is carried up the whole height of the stove. The outside casing E of the
stove is intended to consist of tiles in both forms of stove, but we also claim the
use of a metallic outer shell. In this stove the funnel h, is of rectangular section
to suit the rectangular section of the magazine. At n the brickwork K is
perforated like a rack, to enable the combustion gases escaping from B, to reach C.
The inlets are situated in positions corresponding to their former positions.
This form of stove permits at least of its whole surface to be equally heated,
but in this case, if preferred, the magazine can be shifted more to the central line
of the section of the stove, and that part of the stove situated between the doors e
and g may be fitted with a flue in a similar manner to that described in the first
form of stove.
Having now particularly described and ascertained the nature of my said inven-
tion and the manner in which the same is to be performed, I declare that what I
claim is :-
Claim 1. In magazine stoves the arrangement of a series of vertical flues (C)
round the grate (B) and the magazine (A) to ensure uniform heating of all parts,
said flues being extended down to the bed of such stove where they can be made to
communicate with the outer air by means of inlets (2) the openings of which can be
regulated at will, in such a manner that according to the size of aperture allowed
by the position of the rosettes (1) a smaller quantity of air for the consumption of
smoke, or a larger quantity can be admitted into the flues (C) for cooling the same
substantially as described and shown in the drawings.

page_text: Claim 2. In stoves as claimed in (1) the arrangement of openings (m) for
cleaning purposes, near the base of stove permitting the flues to be swept without
breaking open the brickwork, substantially as described and shown in the
drawings.
Claim 3. In stoves as claimed in (1) the use of moulded bricks or pipe-stones (a
and 6) for forming the flues (C) and the air channels (D) said moulded bricks or
pipestones having such horizontal section that they form a cylinder or polygon when
joined together and are furnished with hollow spaces (a' and 6') as herein
substantially described and shown in the drawings.
Dated this 16th day of November 1894.
J. E. EVANS-JACKSON & Co.,
Agents for the Applicant.