IMPROVEMENTS IN THE MEANS OR APPARATUS FOR ECONOMISING FUEL, AND FOR THE CONSUMPTION OF SMOKE
Year: 1876

page_text: LETTERS PATENT to Emanuel Bradley, Humphrey Bradley, and William
Sunderland, all of Morley, near Leeds, in the County of York, for the
Invention of "IMPROVEMENTS IN THE MEANS OR APPARATUS FOR ECONOMISING
FUEL, AND FOR THE CONSUMPTION OF SMOKE."
Sealed the 15th August 1876, and dated the 15th March '1876.
PROVISIONAL SPECIFICATION left by the said Emanuel Bradley, Humphrey
Bradley, and William Sunderland at the Office of the Commissioners of
Patents on the 15th March 1870.
EMANUEL BRADLEY, HUMPHREY BRADLEY, and WILLIAM SUNDERLAND, all of
Morley, near Leeds, in the County of York. "IMPROVEMENTS IN THE MEANS
OR APPARATUS FOR ECONOMISING FUEL AND FOR THE CONSUMPTION OF SMOKE"
Our Invention has reference to steam and other boiler furnaces, whereby we are
able to consume or burn a very low quality of fuel, also to'burn or consume the
smoke from the same.
We hinge the fire-bars on a beam or rod at the back of the furnace; the front
end of the fire-bars we support on an adjustable beam, which may be raised or
lowered at pleasure, carrying with it the front end of the fire-bars. By lowering
the front end of the fire-bars an opening is made in the front of the fire-place for
the admission of air on to the fire, which has the effect of intensifying the heat of
the fuel, consequently fuel of an inferior class may be employed; also, by thus
intensifying the heat, the inflammable gases that would otherwise pass off are
ignited.
The opening for the admission of air may be varied at pleasure, and for cleaning
purposes we by preference arrange the fire-bars that they can be lowered to a
considerable extent. We also make that part of the front plate below the door so
that it can be removed for cleaning purposes.

page_text: .
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Emanuel Bradley, Humphrey Bradley, and William Sunderland in the
Great Seal Patent Office on the 15th September 1876.
EMANUEL BRADLEY, HUMPHREY BRADLEY, and WILLIAM SUNDERLAND, all of
Morley, near Leeds, in the County of York. "IMPROVEMENTS IN THE MEANS OR 5
APPARATUS FOR ECONOMIZING FUEL AND FOR THE CONSUMPTION OF SMOKE"
Our Invention has reference to steam and other boiler furnaces, whereby we aro
able to consume or burn a very low quality of the fuel, also to burn or consume the
smoke from the same.
We hinge the fire-bars on a beam or rod at the back of the furnace; the front 1
end of the fire-bars we support on an adjustable beam, which may be raised or
lowered at pleasure, carrying with it the front end of the fire-bars. By lowering
the front end of the fire-bars an opening is made in the front of the fire-place for
the admission of air on to the fire, which has the effect of intensifying the heat of
the fuel, consequently fuel of an inforior class may be employed; also, by thus 1
intensifying the heat, the inflammable gases that would otherwise pass off aro
ignited.
The opening for the admission of air may be varied at pleasure, and for cleaning
purposes we by preference arrange the fire-bars that they can be lowered to a
considerable extent. We also make that part of the front plate below the door so 2
that it can be removed for cleaning purposes.
And in order that our Invention may be more completely understood, reference
is given to the accompanying Sheet of Drawings, and to the letters and marks
Figure 1 is a front clovation with door attached; Figures 2 and 3 are front
elevations shewing construction of front plate below the door and application of the
same.
Figures 4 and 5 are longitudinal sections shewing arrangement of fire-bars.
· Figure 6 is a sectional plan looking at the top.
a is the flue of an ordinary boiler and b the bridge; c and d shew the fire-bars.
The fire-bars d and d' are hinged on a beam or rod e, but the intermediate bars c
are supported at f on the plate g, which plate g may rest upon the brickwork, as
shewn. The side bars d' are provided with the ribs &² running transversely. All
the bars are supported on a beam h, the position of which may be varied. The
beam may be inade adjustable, and when preferred may be raised or lowered by
ordinary mechanical means, carrying with it the front end of the 'fire-bars. By
lowering the front end of the fire-bars an opening is made in the front of the fire-
place i for the admission of air on to the fire, which has the effect of intensifying
the heat of the burning fuel, consequently fuel of an inferior quality may be
employed; also, by thus intensifying the heat, the inflammable gases that would
otherwise pass off are ignited.
For the purpose of cleansing the fire we make the grate-bars c of the form
shewn at f, and provide them with handles J, whereby they can be readily with-
drawn or lifted up and down for the purpose of breaking the "clinkers."
"
"
In order to lift the bars d we provide a fulcrum beam K, on which a crow" or
pinch" bar may be worked for the purpose of raising or lowering the bars & for
cleansing purposes. We also make that part of the front plate below the door m
so that it can be removed for cleansing purposes; this is arranged by having the
plate hinged at n, as shewn, by which arrangement the parts of the plate in front
of the opening may be removed, as shewn at Fig. 1, whereby a clear passage
into the interior is provided, so that all the parts of the furnace can be readily got
to for cleansing or other purposes.

page_text: Having now described the nature of our said Invention, and shewn by Drawings
how the same may be carried into practice, we would have it understood that we do
not limit ourselves to the exact limits, details, or configuration of the various parts
we have explained and shewn, as the same may of course be varied or nodified
without in any way departing from our Invention, but what we do claim and desiro
to be secured to us by Letters Patent is,―
First. The arrangement, construction, and application of adjustable fire-bars c
and d, and parts connected therewith, substantially as and for purposes herein sot
forth.
Second. The arrangement, construction, and application of adjustable plate 1
with mere modifications of the same, substantially as and for purposes herein set
forth.
In witness whereof, we, the said Emanuel Bradley and Humphrey Bradley, for
ourselves and on behalf of the said Williain Sunderland, have hereunto set
our hands and scals, this Twelfth day of September, in the year of our Lord
One thousand eight hundred and seventy-six.
EMANUEL BRADLEY.
(L.S.)
HUMPHREY BRADLEY. (LS.)