AN IMPROVED MODE OP AND ARRANGEMENTS FOR PROMOTING COMBUSTION IN FIRE-PLACES AND FURNACES
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by Leopold Henrion at the Office
of the Commissioners of Patents, with his Petition, on the 11th
September 1869.
I, LEOPOLD HENRION, of San Pier d' Arena (Italy), Engineer, do
hereby declare the nature of the said Invention for "AN IMPROVED MODE
OP AND ARRANGEMENTS FOR PROMOTING COMBUSTION IN FIRE-PLACES AND
FURNACES," to be as follows:-
The Invention relates to an improved mode of and arrangements for
promoting combustion in fire-places, more especially those for steam or
other boilers, and in furnaces for treating metals or other materials, and
the same consists in causing the atmospheric air required for the com-
bustion of the fuel instead of entering the fire-place or furnace merely
by the draught resulting from a chimney or stack be forced by a fan,
blower, or other suitable mechanical means into the fire-place or furnace,
the latter being suitably closed on every side. In respect to fire-places

page_text: for steam boilers the arrangements which I prefer to make use of consist
chiefly in having the fire-place as much as possible situated in the
interior of the boiler, whereas for furnaces the fire-place is situated by
preference at one end, and so as to give rise to the least possible loss of
heat by radiation or otherwise; in both cases a small chimney or pipe
is provided for allowing, when required, parts of the gaseous products
of the combustion to be carried out of the fire-place or the furnace,
which latter is provided with suitable openings for the introduction
of the forced blast and the fuel. If wished a suitable quantity
of steam may be introduced in combination with the forced blast of
atmospheric air.
In the annexed Drawings Fig. 1 shows a longitudinal vertical, and
Fig. 2 a cross vertical sectional view of a steam boiler and fire-place
arranged according to my Invention. A, A, shows the boiler, having the
fire-place B situated in the interior of it; C is an opening, by which a
forced blast of atmospheric air or of air and steam is by a fan, blower, or
other suitable mechanical means driven into the fire-place and caused to
act on the fuel for promoting the combustion of this latter. The fuel is
introduced by a hopper D or by a door, which may be perfectly closed.
An opening E leads into a pipe or chimney F, which opening is provided
rod or
with a valve e worked from the outside of the boiler by
handle for allowing when required to open the valve and allow the
gaseous products of the combustion to escape by the pipe F. For
increasing the heating surface the boiler presents a series of vertical
tubes G.
Fig. 3 shows a sectional view of an arrangement for causing the heat
to fall in case it would have risen above a certain required degree. For
this purpose leaden plug i is screwed in an opening; provided in the
inner side P of the boiler, which opening communicates with a pipe I.
A small chain m is fixed with one end into the plug i, and the other
end is attached to a pulley p, over which passes a small chain with
counterweight r, which is made to actuate the steam whistle R in such
manner that in case the heat exceeds a certain degree the leaden plug i
melts, and thus sets free the chain m, and carries the whistle R into
action so as to call the attention of the stoker; at the same time a
large quantity of steam enters through the pipe I and opening j
Я

page_text: into the fire-place, and at once lowers the heat of this latter. Or
instead of this arrangement or in combination with the pipe I may be
provided with a stop-cock N worked from the outside of the boiler by
a handle n for allowing, if required, steam to enter into the fire-place
by the opening j.