Year: 1886

page_text: I, JAMES HOLDEN of Hermon Hill Wanstead in the County of Essex Engineer
do hereby declare the nature of this invention to be as follows:-
This Invention is designed to produce effectual combustion freedom from smoke
and economy of fuel in the furnaces of locomotive engine boilers and boilers of
similar type. For this purpose I introduce into the fire box or furnace fitted with
brick-arch and deflecting-plate, combined jets of liquid fuel steam and air, or of
liquid fuel and steam in suitable proportions over incandescent solid fuel and cause
such jets to be met by combined jets of liquid fuel steam and air or of steam and
air only introduced in suitable proportions at suitable points.
In one method of carrying out my invention I insert a tube immediately under
the fire hole through which I introduce by means of a steam jet a spray of liquid fuel
and steam together with an induced current of air suitable provision being made for
regulating the supplies thereof respectively. In one or more other suitable part or
part of the fire box I introduce a similar spray of liquid fuel steam and air or
sometimes of steam and air only in such manner that the various sprays meet and
combine with each other and with the gases from the solid incandescent fuel thus
causing effectual combustion of carbon, with intense heat and absence of smoke.
In carrying out my invention I sometimes use steam obtained direct from the
boiler and sometimes exhaust steam from the cylinders.
TONGUE & BIRKBECK,
Agents for the Applicant.

page_text: I JAMES HOLDEN of Hermon Hill Wanstead in the county of Essex Engineer
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: —
This invention is designed to produce effectual combustion freedom from smoke
and economy of fuel in the furnaces of locomotive engine boilers and boilers of
similar type.
For this purpose I introduce into the fire-box or furnace fitted with brick arch
and deflecting plate, combined jets of liquid fuel steam and air or of liquid fuel and
steam ins suitable proportions over incandescent solid fuel and cause such jets to be
met by combined jets of liquid fuel steam and air or of steam and air only
introduced in suitable proportions at suitable points.
In one method of carrying out my invention I insert a tube immediatly under
the fire-hole through which I introduce by means of a steam jet a spray of liquid
fuel and steam together with an induced current of air suitable provision being
made for regulating the supplies thereof respectively. In one or more other
suitable part or parts of the fire-box I introduce a similar spray of liquid fuel,
steam and air or sometimes of steam and air only in such manner that the various
sprays meet and combine with each other, and with the ignited gases from the
solid incandescent fuel thus causing effectual combustion of carbon with intense
heat and absence of smoke.
In carrying out my invention I sometimes use steam obtained direct from the
boiler and sometimes exhaust steam from the cylinders.
And in order that my invention may be clearly understood and readily carried
into practice I will proceed to describe the same with reference to the accompanying
drawings.
One method of carrying out my invention is illustrated by the accompanying
drawings. Figure 1 represents a longitudinal section Figure 2 a transverse section
and Figure 3 a back elevation of an ordinary locomotive fire-box fitted and
arranged in accordance with my invention.
The injectors supply pipes, cocks and other parts employed in accordance with
my invention are duplicates of one another and I propose therefore with the view
of avoiding unnecessary repetition to describe one only.
The letters throughout the drawings indicate the same parts A being the brick
arch B the deflecting plate.
C is an aperture through which the liquid fuel injector D is introduced. The
injector is supplied with liquid fuel through the pipe E regulated by the valve F
steam being admitted through the pipe G either from the boiler or exhaust from
the cylinder in either case breaking up the liquid fuel into spray and spreading it
over the solid incandescent fuel the steam supply being regulated by the cock H

page_text: A distinct supply of steam obtained either from the boiler or from the exhaust,
regulated by the separate cock J flows through the pipe K and issues from the
perforated coil L round the injector nozzle D inducing as large a supply of air as
may be found necessary.
For the purposes of complete combustion very large supplies of air are needed
and I sometimes use more than two injectors but do not necessarily supply fuel
through them all at the same time.
I am aware that liquid fuel has been successfully used in the boilers of locomotive
engines, but so far as I am aware it has not been used in the manner hereinbefore
described which has the advantage of enabling the boiler to be used at will without
any further alteration or any loss of time, either with ordinary solid fuel alone or
with the solid fuel in combination with liquid fuel.
In practice it is found that the consumption of solid fuel is very small as the air
is admitted above the fuel and the engine can be used with close or nearly close
damper.
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:
1. The use of liquid fuel as auxiliary or supplemental to ordinary solid fuel in
the fire-boxes of boilers of locomotive Engines or boilers of Locomotive type fitted
with brick arch and deflecting plate substantially as described and illustrated.
2. The use of liquid fuel substantially as described in combination with opposing
jets of steam and air which can be regulated independently of each other.
3. The use of exhaust steam either for the purpose of injecting the liquid fuel
or the jets of air or both substantially as described.
A
1
03
1
PT1
1000