Improvements in Smoke Consuming Apparatus for Steam Boiler and other Furnaces.
Year: 1898

page_text: Date of Application, 5th Jan., 1898
Complete Specification Loft 4th Nov. 1898-Accepted. 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Smoke Consuming Apparatus for Steam Boiler and
other Furnaces.
I, SAMUEL KNOWLES, of Tottington, near Bury, in the County of Lancaster,
Calico Printer, do hereby declare the nature of this invention to be as follows;
My invention relates to improvements in smoke consuming apparatus for steam
boiler and other furnaces and the object of my improvements is to consume
smoke and economise fuel.
In carrying my invention into effect I fit in the boiler furnace flue preferably
beyond the bridge, a coil of steel or other suitable metal pipe, and one end of
this coil is carried below the firebars to the front or it might be to the back of
the boiler to obtain a supply of air and the other end of the coil terminates say
at the back of the bridge where I prefer to connect it to several smaller vertical
pipes which extend to about the level of the bridge and may be of metal, fireclay,
asbestos, or other suitable material. When the fire in the furnace is burning
the air in the coiled pipe is heated and as it escapes at or about the level of the
bridge and meets the smoke and unconsumed gases from the furnace the latter
will be ignited thus materially reducing the sinoke and economising fuel. In
place of the small vertical pipes the end of the coil might be coupled to a fire-
clay chamber placed near the bridge and preferably close to it and this chamber
may have any suitable aperture or apertures for the outlet of the air about.on
a level with the top of the bridge.
If found desirable a jet of steam or a fan or other means may be employed
in order to create an increased draught of air through the coil.
Instead of employing a coiled pipe or more than one such coil, as an air
heater, I might use any other suitable form of hollow vessel made of any suitable
material.
Dated this 4th day of January 1898.
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in Smoke Consuming Apparatus for Steam Boiler and
other Furnaces.
I, SAMUEL KNOWLES, of Tottington, near Bury, in the County of Lancaster,
Calico Printer, do hereby declare the nature of this invention and in what
077

page_text: manner the seane is to be performed, to be particularly described and ascertained
in and by the following statement:-
My invention relates to improvements in smoke consuming apparatus for steam
boiler and other furnaces and the object of my improvements is to consume
smoke and economise fuel.
In carrying my invention into effect I fit in the boiler furnace flue preferably
beyond the bridge, a coil of steel or other suitable metal pipe, and one end of
this coil is carried below the firebars to the front or it might be to the back of
the boiler to obtain a supply of air and the other end of the coil terminates say
at the back of the bridge where I prefer to connect it to several smaller vertical
pipes which extend to about the level of the bridge and may be of metal, fireclay,
asbestos or other suitable material.
In the accompanying sheet of drawings-
Figure 1 is a longitudinal sectional elevation of part of a boiler furnace
flue fitted with my improved smoke consuming apparatus, and Fig. 2 is a trans-
verse vertical section of the flues looking towards the front of the boiler.
Fig. 3 is a similar view to Fig. 1 but showing an alternative arrangement.
In the arrangement illustrated by Figs. 1 and 2, a designates the shell of
the boiler, the flues, e the firebars, and d the bridge.
According to my improvements I place a coil of pipes e in each flue b and pre-
ferably beyond the bridge. One end e¹ of the coil e is carried through the
bridged below the firebars to the front of the boiler or it might be to the
back of the boiler to obtain a supply of air, and the other end of the coil
terminates at any convenient and suitable point preferably at the back of the
bridge where it is shown connected by a branch pipe f to the row of vertical
pipes which extend to about the level of the bridge.
In place of the series of vertical pipes f the end of the coil e might be
coupled as shown in Fig. 3 to a fireclay chamber placed near the bridge d
and preferably close to it and this chamber may have any suitable aperture
or apertures as ' for the outlet of the air about on a level with the top of the
bridge.
In either arrangement when the fire in the furnace is burning the air in the
ediled pipe is heated and as it escapes from the pipes or apertures 71 at or
about the level of the bridge and meets the smoke and unconsumed gases
from the furnace, the latter will be ignited thus materially reducing the smoke
and economising fuel.
If found desirable a jet of steam or a fan or other means may be employed
in order to create an increased draught of air through the coil."
Instead of employing a coiled pipe or more than one such coil, as an air
heater, I might use for this purpose any other suitable form of hollow vessel
made of any suitable material.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be employed I declare that what
I claim is:-
1. The improvements in smoke consuming apparatus for steam boiler and other
furnaces which improvements consist in the arrangement, use and application
of an air heater such as a coiled pipe placed in the flue preferably beyond the
bridge and supplied at the inlet end with atmospheric air and at the delivery
end connected to a series of vertical pipes or a chamber with apertures or other
suitable form of outlet for the heated air substantially as and for the purposes
herein set forth.
2. The combination with the furnace flue and bridge, of the coiled pipe e
communicating at the inlet end with the atmosphere and at the outlet end con-
nected to a series of delivery pipes g substantially as and for the purposes herein
described with reference to Figs. 1 and 2.

page_text: 3. The combination with the furnace flue and bridge, of the coiled pipe e
communicating at the inlet end with the atmosphere and at the outlet end con-
nected to a delivery chamber h substantially as and for the purposes herein
described with reference to Fig. 3.
Dated this 3rd dov. of November
1898
H. B. BARLOW & GILLETT,
Agents for Applicant.
17, St. Ann's Square, Manchester.