Improvements in Means for Increasing and Regulating the Draught of Fire-places and Stoves
Year: 1890

page_text: Date of Application, 27th Dec., 1890
Complete Specification Left, 16th Jan., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Means for Increasing and Regulating the Draught
of Fire-places and Stoves.
I, JOSEPH SEPULCHRE, of Liege, Belgium, Manufacturer, do hereby declare
the nature of this invention to be as follows:-
This
This invention relates to increasing the draught of fire places and stoves to effect
a better combustion of fuel by which a greater heat is diffused into the room.
invention essentially consists in giving the draught two exits from fire into chimney;
one over the fire and one below the top of fire through the fuel; either of these
exits can be closed by dampers at will to divert the draught to the other. The
dampers may be of the usual form, or formed by a plate arranged to be lifted or
lowered, constituting the back of the grate.
The raising of this part opens the bottom exit to chimney; or the lowering of it
closes it and opens the top one: holding the plate midway partially opens both
exits. When the invention is applied to tall stoves the bottom exit may be con-
nected to a short length of pipe communicating with the flue pipe.
In these two pipes the dampers can be arranged.
Dated this 7th day of December 1890
FREDERIC PRINCE,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Means for Increasing and Regulating the Draught
of Fire-places and Stoves.
I, JOSEPH SEPULCHRE, of Liege, Belgium, 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 :-
This invention refers to simple means for improving the draught of open fire-
places and stoves and will be best understood by aid of the accompanying
drawings.
Figures 1, 2 and 4, sectional side elevation of an outstanding open fronted stove.
Figure 3. front view of a detail shown in Figure 2.
Figure 5. front view of a detail shown at Figure 4.
Figure 6. sectional elevation of a set fireplace.
In all the views A. represents the chimney flue or chimney. B a flue pipe leading
up from below the surface of the fuel into the pipe A, E, F, dampers in pipes A, B.
When the fire is first lighted both dampers should be open, but as soon as the coal
is alight, the damper F should be closed to compel the draught to travel downwards
through the fuel which will to a considerable extent consume the smoke. If both
dampers are left open when the fire is alight, the draught through A. will cause a
considerable draught up B. G door for cleaning out soot. In Figure 2 slightly
different arrangement is shown to obtain the same result. According to this plan,
the back of the grate has an opening H communicating with chimney flue A. over
this opening a plate, L, M, is hung by a chain attached to a pivotted lever O. As
the draught is desired to be either over the fire or through it, the plate is-arranged
accordingly.
'
In Figure 4 a similar device is shown by a slightly modified arrangement.
The back of the grate has two openings made in it communicating with flue A,
these openings are closed by separate dampers R. S. actuated from the outside by

page_text: handle. Figure 6 shows a similar arrangement in a slightly modified form applied
to a set grate. T is the back of the grate behind which is an up passage B' over
the top of the grate is a usual register closed by two dampers E these may be
on one stem arranged to be operated from the outside; the dampers are connected
to their stem at reverse angles, so that when one is closed the other is open.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what I
claim is
:-
1. In a stove, the combination with the usual flue pipe A, of the pipe B and (if
desired) having dampers E. F. as and for the purpose described and illustrated by
the accompanying drawings at Figure 1.
2. In a stove a sliding plate L, M, to control an opening in back of grate for the
draught, arranged to be lifted or lowered as described and illustrated by the accom-
panying drawings at Figure 2.
3. In a stove a back of the grate having two openings controlled by independent
dampers, as described and illustrated by the accompanying drawings at Figure 4.
4. In a fireplace, an opening in back of grate with up passage between back of
grate and setting for draught communicating with chimney but controlled by
a damper, and a passage in front of back communicating with chimney but controlled
by damper, as described and illustrated by the accompanying drawings at Figure 6.
Dated this 16th day of January 1891.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, London, W.C., Agent for Applicant.