Improvements in or Connected with all kinds of Fires, Furnaces, and Steam Boilers.
Year: 1888

page_text: Date of Application, 13th Nov., 1888
Complete Specification Left, 10th Aug., 1889-Accepted, 9th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in or Connected with all kinds of Fires, Furnaces,
and Steam Boilers.
EDWIN MARSH, Engineer, 8 Hull Street Green Road, Leeds do hereby declare the
nature of my invention to be as follows :-
The object of my invention is to make a slow or fast combustion fire economise coal
and consume smoke. I accomplish this object first by making all joints air tight with
silica cotton or slagg wool or of asbestos packing concentrating the whole draught of
main flue into the fire. In regulating the draught through fire, I fix a damper in
the main flue above the fire so fitted as to be applied from the front of mantel jamb
or in any convenient place. When closed will cause the draught of air to go through
the fire under the oven and boiler. With the aid of my new constructed loose fire
bars which I claim in particular will burn smoke, the smallest coal and all cinders,
the bars being loose admit of expansion or contraction they can also be used to reduce
or extend the fire at pleasure.
The back and ends are supplied with similar bars or perforated fire brick the bottom
grate is hinged to the back to let out the ashes.
The bar resembles a piece of flat iron about 4 inches in breath and 10 or 12 inches
in length according to the size of fire place and about inch thick tapering off to
about inch the thin edge being the top of the bar. These bars are placed all round
the grate which is specialy constructed to receive them about 4 inches apart at an
angle of about 45 degrees forming a kind of hopper so that no cinders, or small coals
can drop out of the fire.
Dated this 13th day of December 1888
COMPLETE SPECIFICATION.
Improvements in or Connected with all kinds of Fires, Furnaces,
and Steam Boilers.
I, EDWIN MARSH, Engineer, 8 Hull Street Green Road Leeds, 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 object of my invention is to make a slow or fast combustion fire, economise coal,
and consume smoke.
I accomplish this object by first making all joints air tight with silica cotton or slag
wool, and asbestos packing.
Concentrating the whole draught of main flue L into the fire. In regulating the
draught through the fire I fix a damper K, in the main flue L above the fire so fitted
as to be applied from the front of the mantel jamb, or in any convenient place; when
closed will cause the draught of air to go through the fire, under the oven and boiler,
the top of the fire to be enclosed, with the aid of my newly constructed oscillating or
fixed Fire Bars A as shewn in Fig. 1 vertical section through line M and N on Fig. 2
front elevation. Will burn smoke, the smallest coal, and all cinders, and can be
supplied with fuel from the top, or from the front between the bars A: the coal being
at front of fire, the smoke must be consumed before reaching the flues B. The Flues B
are a number of spaces at the back of the Fire Box, and are placed in such a position
that the air is drawn from the outside through the openings between Bars A over the
whole surface of fire into Main Flue L: the bars A being loose admit of expansion
or contraction; they can also be used to reduce or extend the fire at pleasure.

page_text: These bars can be made any shape or form for ornamental Fire Places. The back
and ends of domestic grates are supplied with similar bars or perforated fire bricks ;
the bottom plate or grate C, as shewn in Figs. 1 and 2 can be withdrawn to let out
the ashes.
The bottom plate or grate I as shewn in Figs. 1 and 2 is fixed or stationary. The
bars A resemble a piece of flat iron about 10 or 12 inches in length, and about 4 or 5
inches in breadth, according to size of fireplace, about inch thick tapering off to
about of an inch, the thin edge being the top of the bar; these bars are placed all
round the grate, which is specially constructed to receive them about 4 or 5 inches
apart at an angle of about 45 degrees, forming a kind of hopper, so that no cinders or
coal can drop out of the fire. The arrangement of oscillating or fixed bars A and
flues B as shewn in Fig. 1 vertical section and Fig. 2 front elevation applies to all
kinds of Fires.
The application of the arrangement to steam boilers is that the Fire Box, as
arrangement shewn in Figs. 1 and 2 is built up to face of boiler, with the flues B
opposite the centre flue of boiler. The oscillating angular Fire Bars A are worked
by Rods D and E connected with crank lever F and regulated by means of ratchet G
and Catch H to any angle to suit draught required. The Bars A are opened for
quick combustion and closed for slow combustion. The Ventilator marked J at the
top of the bars can be used for the same purpose, or can be introduced on the
dead plate of any ordinary boiler for the consumption of smoke. The application
of Ventilator J is for the purpose of regulating the air over the top of fire, and
its construction is two perforated plates, the one fixed, and the other loose; the
loose one can be moved, so as bring the holes in it opposite the holes in fixed
plate, or may be moved just sufficient to allow of the holes being partly open or
closed as may be required.
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
1st. The formation of my oscillating or fixed Fire Bars A.
2nd. The construction of the flues B is connection with my bars A.
3rd. The vertical position of the fire, and the general construction, combination and
arrangement of parts together, respectively being my improvements in or connected
with all kinds of Fires, Furnaces and Steam Boilers, substantially and for the purposes
EDWIN MARSH,
8, Hull Street, Green Road, Leeds, Engineer.