Economizing Fuel, also Applicable to Sewer Ventilation.
Year: 1887

page_text: Date of Application, 8th Aug., 1887
Complete Left, 1st May, 1888
Complete Accepted, 29th June, 1888
Economizing Fuel, also Applicable to Sewer Ventilation.
I, RICHARD HENRY MICHELL late of Mount Stuart Iron Works Cardiff in the
County of Glamorgan Engineer but now residing at Wiesbaden in Prussia do hereby
declare the nature of this invention to be as follows:-
In the first place I include in the word "smoke" all the unconsumed gaseous
products that escape from a fire and which are now allowed to go off through the
chimney.
For the purposes of my invention I return the smoke back again into the same or
another fire so as to produce its complete consumption and to entirely prevent its
escape. I do away with the chimney altogether except when the fires are banked. I
take the smoke as soon as it has left the fireplace and conduct it back again by a pipo
or other suitable channel, (which may be termed the "return flue") and re-introduce
it into the fireplace at or near the door or into such other part of the fireplace as may
be found most desirable and in such a manner as shall be most likely to ensure the
complete combustion of the smoke. The process of returning the smoke into the fire
is to go on continuously so that the whole may be consumed.
The means by which this object is to be attained is a "Fan" (which exhausts and
forces the air and smoke) or other motor placed in connection with the "return flue"
which is to take all the smoke and cause it to re-enter the fireplace and compel it to
travel in such a manner as may be required for its complete combustion.
The action of the said "fan" or other motor is to be continuous always bringing
the smoke back again into the fireplace and there completing its combustion by mixing
with it the oxygen of the air which must be supplied in the necessary quantities to
effect this result. The draft of the fire is also to be regulated by the said "
fan or
"

page_text: other motor thereby producing a brisk sharp fire or one just sufficient to consume the
gasses arising from it at the option of the fireman.
For promoting the sanatory condition of towns this invention may be applied to the
fire-places of dwellinghouses or streets of houses. In this case the ascending flue or
chimney must have a damper on it or be disconnected with the fire-place. The fire
place must then be connected with a rarefied smoke drain placed in the street or
elsewhere. The smoke and other gasses are to be drawn out of the flue of the chimney
and out of the smoke drain by a fan or other means of producing an exhaustion
and blown into the fireplace of a boiler, gas retort, or other furnace, to be there
consumed as before described. The sewers should also be connected with the said
smoke drain at various intervals to take away the foul gasses from them so that they
may be burnt with the smoke in the furnace provided for the purpose as aforesaid.
وو
Dated this Sixth day of August 1887.
RD. H. MICHELL,
Coose Lane, Redruth.

page_text: A method oT ада шваль ΤΟΥ Consuming юшоке, али спогорУ
Economising Fuel, also Applicable to Sewer Ventilation.
I, RICHARD HENRY MICHELL late of Mount Stewart Iron Works Cardiff, in the
County of Glamorgan, now of Redruth in the County of Cornwall Engineer do
hereby declare the nature of this invention and in what manner the samo is to be
performed, to be particularly described and ascertained in and by the following
statement:
The object of this invention is to mechanically separate the combustible from the
incombustible gases generated in a furnace or other fire place, and depends mainly
upon the physical properties of the unconsumed gases themselves.
For the purposes of my invention I return the unconsumed gases back again into
the same or another fire so as to produce their complete combustion. I take them as
soon as they have left the fire-place and conduct them back again by a pipe or other
suitable channel (which may be termed the "return flue") and re-introduce them into
the fire-place at or near the door or into such other part of the fire-place as may be
found most desirable, and in such a manner as may be most likely to insure their
complete combustion. The process of returning them into the fire is to go on con-
tinuously until they are consumed.
The means by which this object is to be attained is a "Fan" or other motor placed in
connection with the "return flue" which is to take the unconsumed combustible gases
and cause them to re-enter the fire-place and compel them to travel in such a manner
as may be required for their complete combustion.
The action of the said "fan" or other motor is to be continuous, always bringing
the unconsumed combustible gases back again into the fire-place and there completing
their combustion by mixing them with the oxygen of the air supplied under the fire-
place in the ordinary way in the necessary quantities to effect this result. The draught
of the fire is also to be regulated by the said "fan" or other motor thereby producing
a brisk sharp fire or one just sufficient to consume the gases arising from it, at the
option of the fireman.
For promoting the Sanitary condition of towns this invention may be applied to the
fire-places of dwelling houses or streets of houses. In this case the ascending flue or
chimney must have a damper on it, or be disconnected with the fire-place and then
be connected with a rarefied smoke drain placed in the street or elsewhere. The
smoke and other gases are to be drawn out of the flue of the chimney and out of the
smoke drain by a "fan" or other means of producing an exhaustion and blown into
the fire-place of a boiler, gas retort or other furnace to be there consumed as before
described.
The sewers should also be connected with the said smoke drain at various intervals
to take away the foul gases from them so that they may be dealt with as before
described in the furnace provided for the purpose as aforesaid.
And in order that my invention may be more fully understood and carried into
practice, I now proceed to describe the same with reference to the accompanying
drawings in which similar letters indicate corresponding parts :-
Figure 1. is a side elevation of my invention as applied to a Marine Steam Boiler.
Figure 2. is a plan of the same.

page_text: The smoke arising from the fire-place is led to a fan or other exhauster A and
from thence led back again to any convenient part of the fire-place by the return
flue B.
It is well known that the specific gravity of the incombustible gases is greater than
that of the combustible gases, and 1 take advantage of this fact in my invention in the
following manner :-
When the mixed gases are led into the fan, or other exhauster, A the centrifugal
force developed thereby will cause the heavier gases to arrange themselves around
the periphery of the said fan or other exhauster. The return flue B is fitted with
a damper or separator C pivotted at D, so as to revolve in the same plane as
the fan.
The said separator can be so arranged as to take up two extreme positions.
(1) The position C1 when the whole of the gases are cut off from the fire, and are
led up the chimney flue E.
(2) The position C2 in which the whole of the gases are cut off from the chimney E 1
and are discharged under the furnace bars.
It is well known that if the separator is in the second position C2 the constant
discharge of the mixed gases into the fire-place will eventually extinguish the fire.
Now the seperator C can be so regulated that it shall take up any position between
these two extremes, and since, by reason of their greator weight, the incombustible
gases are arranged as before stated around the periphery of the fan or other Exhauster,
it is obvious that the said separator can be made to cut off any required quantity of
the said incombustible gases, and so divide the gases thrown off from the Exhauster
as to lead the heavier incombustible gases from the periphery up the chimney E, and
return the lighter combustible gases along the return flue B.
It will readily be understood that if a smoke drain were constructed in any con-
venient locality, and provided with an Exhauster fitted with a separator pivotted so
as to revolve in the same plane as the Exhauster the smoke from dwelling houses and
other places would be led therein by the vacuum caused by the revolution of the fan,
and could there be separated, and the combustible gases utilized in any convenient
manner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.—-
First. The method of mechanically separating the combustible from the incom-
bustible gases by the centrifugal force developed by the fan or other Exhauster,
substantially as hereinbefore described.
Second. The mechanical separation of the combustible from the incombustible gases
by a pivotted separator adjusted so as to separato the gases at the periphery from the
other gases discharged by the fan or other Exhauster, substantially as and for the
purposes hereinbefore set forth, and illustrated in the accompanying drawings.
Dated this outh day of April 1888
Dated this outh day of April 1888
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, E.C.,
Agent for the Applicant.