Improvements in Smoke Consumption.
Year: 1890

page_text: Date of Application, 13th Aug., 1890
Complete Specification Left, 13th May, 1891-Accepted, 13th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Smoke Consumption.
GEORGE WILLIAM GROSVENOR of Worcester Cross Kidderminster Carpet
Manufacturer & JAMES BEDFORD of 51 East Street Kidderminster, Mechanical
Engineer do hereby declare the nature of this invention to be as follows:-
Our invention has for its object to consume the smoke without any loss of heat;
and, it may be, with some gain by the improved combustion that is produced.
This we do by admitting or supplying a current of heated air to come in contact
with the flames and smoke, thus increasing the intensity of the flames and producing
the desired effect. The manner of carrying this may be varied according to the
kind of firegrate or furnace to which it is applied. In boilers with tubes through
from end to end, an aperture may be made in the front of the bridge underneath
the fire bars, going first in a horizontal direction, then perpendicular, between front
and back walls of bridge, and the outlet at the top and back of the bridge may be
either left with an upright opening or inclined more or less in the direction in
which the flames and smoke are moving.
The air thus gets heated in passing underneath the fire and in going through the
bridge aperture, and the admission of it in the front may be regulated by an iron
door or any other suitable means.
Dated this 12th day of August 1890.
GEORGE W. GROSVENOR.
JAMES BEDFORD.
COMPLETE SPECIFICATION.
Improvements in Smoke Consumption.
We, GEORGE WILLIAM GROSVENOR, of Worcester Cross, Kidderminster,
in the County of Worcester, Carpet Manufacturer, and JAMES BEDFORD of
51 East Street, Kidderminster aforesaid, Machinist, 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. :—
Our invention has for its object to consume the smoke in furnaces without any
loss of heat and it may be with some gain by the improved combustion that is
produced. This we do by admitting or supplying a current of heated air as herein-
after described, which comes in contact with the flames and smoke and thereby
increases the intensity of the flames and leads to the combustion of the smoke.
For the purpose of our invention we make an aperture or channel in the bridge,
the said aperture or channel commencing underneath the fire bars, going first in a
horizontal direction and then in a vertical direction between front and back walls
of the bridge and terminating at the top and back of the bridge in an opening
which will deliver the air that passes through the bridge either vertically, or in a
direction more or less inclined to the direction in which the flames and smoke travel.
The air enters the channel from below the fire bars, having been partly heated in
passing underneath the fire; it becomes highly heated during its passage through
the bridge so that on coming into contact with the smoke and flames after it issues
from the bridge it increases the intensity of the flames and leads to the combustion
of the smoke.
In carrying out the invention we can make the bridge entirely of fire brick, or we
can make it chiefly of cast iron.

page_text: Figure 1 of the accompanying drawings is a longitudinal section and Figure 2 a
section on the line of Figure 1 showing our invention applied to a furnace in
which the bridge is made entirely of fire brick. « represents the fire bars, the
ash pit, and the flue. d and e are front and back walls of the bridge. is a
horizontal channel in the front wall & underneath the fire bars and leading to a
vertical continuation or channel g between the walls d and e; the channel
g
terminates in an inclined portion by which the air that passes through and is
delivered in a direction approximating to that in which the flames and smoke that
pass over the top of the bridge travel.
Figures 3 and 4 show a bridge constructed chiefly of cast iron for carrying out
our invention. The front and back walls d and e are of cast iron and made to fit
the flue except at top. They are secured together by bolts and are kept at the
required distance apart by distance pieces and of which kk are preferably
cast with the back wall e and the piece with the front wall d. f is the horizontal
aperture or channel and the vertical continuation as before. The front wall d is
cast with a bearer m which not only serves to support the inner ends of the fire
bars but also to support fire brick blocks which form a facing to the cast iron
wall d. In order to prevent the walls d, e, becoming warped or distorted they are
formed with holes p p. is a curved piece which serves to support the weight of
the bridge.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
The construction of smoke consuming furnaces substantially as hereinbefore
described and represented in the accompanying drawings.
Deted this 19th day of May 1801
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
J. C. MEWBURN,
55 & 56, Chancery Lanc, London, Patent Agent.