Improvements in Locomotive Boiler Feeding Apparatus.
Year: 1892

page_text: Date of Application, 17th Feb., 1892
Complete Specification Left, 17th Nov., 1892-Accepted, 31st Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Locomotive Boiler Feeding Apparatus.
I, ROBERT GRUNDY BROOKE of 44 Queen's Gate, Blackpool, Manchester, in
the County of Lancaster, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to the arrangement of an exhaust injector on a locomotive,
in such a manner that the exhaust steam supply pipe from the smoke box to the
injector is more direct, being such as to obviate numerous unsightly bends and
form a neater arrangement than was found possible according to constructions
heretofore usually adopted when employing injectors of the type referred to.
The exhaust steam supply pipe is arranged to run horizontally along the engine,
at some convenient height above or below the platform, from the smoke box to a
point directly over the injector, thence straight down by a bend and a vertical
length of pipe to the top of the injector.
To enable the injector in such an arrangement to be regulated by the convenient
method of screwing the steam nozzle up or down, the regulating rod is arranged to
pass through the inside of the steam supply pipe and through the bend where the
horizontal and vertical lengths of pipe aforesaid meet to the outside of the pipe,
and a stuffing box or other suitable air tight arrangement is provided at the point
of the bend where the regulating rod passes through.
In this bend, which may form a separate casting to which the aforesaid lengths
of the exhaust supply pipe are attached, I sometimes arrange an inlet hole through
which live steam may be introduced for working the exhaust injector with steam
direct from the boiler when the engine is standing, the steam being expanded down
to low pressure in the ordinary well known manner.
In some cases a wing or other valve for regulating the exhaust steam supply is
arranged in the casting that forms the elbow.
An exhaust injector for working against high pressures such as obtain on loco-
motives is usually arranged to work in co-operation with a supplementary or second
injector worked with live steam supplied by a separate pipe; and sometimes (as
in an injector according to Holden & Brooke's British Patent No. 2177 of 1887)
the steam supply to this secondary injector is turned on and off automatically; and
it may be arranged that this pipe also supplies the exhaust steam injector with live
steam when so required. Now in order that the one live steam pipe may be used
for either the supplementary injector alone or for the supplementary and exhaust
injector together, I construct a valve with an inlet sufficiently large to admit the
requisite steam supply for working the two injectors together. From this inlet
there is an unobstructed passage through the valve to an outlet passage leading to
the supplementary or live steam portion of the combined injector, the valve con-
trolling this supply being shut automatically as described in the Specification of
Holden & Brooke's former Patent above referred to; also there is another outlet
controlled by an ordinary valve and seating, and leading to the exhaust
injector, or the exhaust injector supply pipe, so as to introduce the live
steam in a manner suitable to the exhaust injector. Such a valve as described
I attach direct to the supplementary injector, or to the exhaust injector,
or the exhaust supply pipe, or to the elbow containing the stuffing box

page_text: through which the regulating rod passes, as the conditions of fixing may render
desirable.
Dated this 17th day of February 1905
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Locomotive Boiler Feeding Apparatus.
I, ROBERT GRUNDY BROOKE, of 44 Queen's Gate, Blackpool, Manchester, in
the County of Lancaster, 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 relates to the arrangement of an exhaust injector on a locomotive,
in such a manner that the exhaust steam supply pipe from the smoke box to the
injector is more direct, being such as to obviate numerous unsightly bends and form
a neater arrangement than was found possible according to constructions heretofore
usually adopted when employing injectors of the type referred to.
The exhaust steam supply pipe is arranged to run horizontally along the engine,
at some convenient height above or below the platform, from the smoke box to a
point directly over the injector, thence straight down by a bend and a vertical
length of pipe to the top of the injector.
To enable the injector in such an arrangement to be regulated by the convenient
method of screwing the steam nozzle up or down, the regulating rod is arranged to
pass through the inside of the steam supply pipe and through the bend where
the horizontal and vertical lengths of pipe aforesaid meet to the outside of the
pipe, and a stuffing box or other suitable air tight arrangement is provided at the
point of the bend where the regulating rod passes through.
In this bend, which may form a separate casting to which the aforesaid lengths
of the exhaust supply pipe are attached, I sometimes form an inlet hole through
which live steam may be introduced for working the exhaust injector with steam
direct from the boiler when the engine is standing, the steam being expanded down
to low pressure in the ordinary well known manner.
In some cases a wing or other valve for regulating the exhaust steam supply is
arranged in the casting that forms the elbow.
An exhaust injector for working against high pressures such as obtain on loco-
motives is usually arranged to work in co-operation with a supplementary or second
injector worked with live steam supplied by a separate pipe; and sometimes (as in
an injector according to Holden & Brooke's British Patent No. 2177 of 1887) the
steam supply to this secondary injector is turned on and off automatically; and it
may be arranged that this pipe also supplies the exhaust steam injector with live
steam when so required. Now in order that the one live steam pipe may be used
for either the supplementary injector alone or for the supplementary and exhaust
injector together, I construct a valve with an inlet sufficiently large to admit the
requisite steam supply for working the two injectors together. From this inlet
there is an unobstructed passage through the valve to an outlet passage leading to
the supplementary or live steam portion of the combined injector, the valve con-
trolling this supply being shut automatically as described in the Specification of
Holden & Brooke's former Patent above referred to; also there is another
outlet controlled by an ordinary valve and seating, and leading to the exhaust
injector, or the exhaust injector supply pipe, so as to introduce the live steam in a
manner suitable to the exhaust injector. Such a valve as described 1 attach direct
to the supplementary injector, or to the exhaust injector, or the exhaust supply
pipe, or to the elbow containing the stuffing box through which the regulating rod
passes, as the conditions of fixing may render desirable.

page_text: ассотрану mg urawings,
Fig. 1 is a side elevation illustrating one arrangement of boiler feeding
apparatus according to this invention applied to a locomotive which is shown
diagrammatically.
Fig. 2 is a sectional detail view illustrating an arrangement of valves forming
part thereof.
1 is an exhaust injector arranged to work in co-operation with a supplementary
or live steam injector 2 the live steam supply to which is turned on and off auto-
matically in a manner well understood. 3 is an exhaust steam supply pipe con-
nected at one end to the blast pipe in the smoke box of the locomotive, and
arranged to run horizontally along the engine and above the foot plate 4 to an
elbow or bend 3 that is made as a separate casting and is fixed above the injector 1
to the top of which it is connected by a vertical length of pipe 3b. 5 is a rod for
regulating the position of the spindle of the injector 1; it passes vertically through
the length of pipe 3b and through the elbow or bend 3ª which is provided with a
stuffing box 6 through which the rod passes. The rod carries at its upper end a
bevel wheel 7 that is operated from the foot plate of the locomotive by a rod 8
provided with a bevel wheel 9 that gears with the bevel wheel 7. The elbow or
bend 3ª is formed with an inlet hole 10 (Fig. 2) that communicates by a similar
hole 11 with a valve chamber 11 that is connected at the top by a pipe 12 with
the steam space of the boiler and at the bottom by a pipe 12" to the top of the
supplementary or live steam injector 2. 13 is a valve connected to a rod 13"; by
opening it live steam is enabled to flow from the valve chamber 11 through the
holes 11, 10 to the pipe 3b and thence to the exhaust steam injector for working
this injector direct from the boiler, as for example when the engine is standing.
14 is a wing valve for regulating the supply of exhaust steam to the exhaust
injector; it is, in the example shown, arranged within the elbow or bend 3ª, and is
fixed upon a spindle arranged to be operated from the foot plate of the locomotive
by a lever arm 15 and a rod 16 that is notched or otherwise graduated so that the
valve can be held in any desired position by the aid of a catch or pin, or equivalent
device. As will be seen each of the rods 8, 13ª and 16 are arranged to be operated
from the foot plate of the locomotive. 17 is the feed water supply pipe; and
18 is the feed water delivery pipe by which the heated water is led to the boiler
past a non-return valve at 19. The two injectors may be suspended from the
steam supply pipes 3" and 12ª, or be fixed to a bracket secured to the side frame of
the engine.
In the modified construction shown in sectional plan in Fig. 2A and in sectional
elevation in Fig. 2B, the spindle 5 is operated by a worm wheel 9" gearing with a
worm wheel 7a fixed to the upper end of the spindle and located within the elbow
or bend 3, the boss of the worm wheel being mounted to turn in a bearing 3
within which it is prevented from moving endways by a pin 20 that enters an
annular groove in the boss.
This modified construction of elbow or bend may, like the arrangement shown in
Fig. 2, be connected with a valve chamber 11, as indicated in dotted lines in Fig. 2B,
from which live steam may be admitted to the exhaust pipe 3b by a valve operated
by a rod 13 in the manner hereinbefore described. 15 is the wing valve as
before.
Fig. 3 is a similar view to Fig. 1 ; and
Fig. 4 is a cross section through the smoke box of a locomotive, illustrating a
modified arrangement of boiler feeding apparatus according to this invention.
In this arrangement the exhaust steam supply pipe 3 is arranged to extend
horizontally below the foot plate 4 to the bend 3 from which point it extends
vertically to the upper part of the exhaust injector 1 which is fixed to a suitable
part of the engine frame, the supply of exhaust steam being controlled by a
valve 14 arranged in the pipe 3 and operated by a vertical rod 8. The regulating
spindle of this injector may be operated by a vertical rod 5 arranged externally to
the vertical length of the exhaust steam supply pipe as shown. 11 is a live steam

page_text: supply pipe provided with a cock 11*, and arranged to admit live steam from the
boiler to the supplementary or live steam injector alone, the supply being regulated
by adjusting the position of the spindle of this injector by a vertical rod 2ª. As
will be seen the rods 2* 5, and 8, and the cock 11* are each arranged to be
operated from the foot plate of the engine. The delivery pipe 18 is in this
example shown connected to the side of the boiler instead of to the rear end
thereof as in Fig. 1.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The herein described improved arrangement of locomotive boiler feeding
apparatus wherein the exhaust steam supply pipe is arranged to run horizontally
along the engine from the smoke box to a point above the exhaust injector
and thence by a bend and a vertical length of pipe to the top of this injector,
the regulating spindle of which is arranged to be operated by a vertical rod
capable of being worked from the foot plate of the locomotive substantially as
hereinbefore described.
2. In locomotive boiler feeding apparatus the combination with an exhaust
injector, and an exhaust steam supply pipe arranged as specified in the preceding
claim, of a supplementary or live steam injector arranged to co-operate with the
exhaust steam injector, a live steam supply pipe in communication with the supple-
mentary injector and adapted to be placed in communication by a separate outlet
with the exhaust steam injector and a valve for controlling this latter communica-
tion, the arrangement being such that live steam can at will be admitted to the
exhaust injector as well as to the supplementary injector substantially as herein
described for the purpose specified.
3. Locomotive boiler feeding apparatus constructed arranged and operating as
hereinbefore described with reference respectively to and shown in Figs. 1 and 2,
or modified according to Figs. 24 and 2B, and in Figs. 3 and 4 of the drawings
annexed.
Dated this 17th day of November 1892.
W. LLOYD WISE,
Per F. J. Brougham.