Improvements in Implements for "Spraying" Inflammable Oils or other Liquids under Pressure.
Year: 1896

page_text: Date of Application, 23rd July, 1896-Accepted. 3rd Oc'., 1996
COMPLETE SPECIFICATION.
Improvements in Implements for "Spraying" Inflammable Oils or
other Liquids under Pressure.
We, LOWRY RUSDEN, of Sanderson Road, and ROBERT EELES, of Queen
Street in the City and County of Newcastle-upon-Tyne, Engineers, do hereby
leclare the nature of said 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 relates to an improved "spraying" implement having special
reference to the supply of inflammable hydro-carbon oils as fuel to the furnaces of
steam generators by steam, or by gas generated from the oils by heat, or by heated
air or other gases under pressure. For brevity we will describe the implement
with steam as the spraying medium the operation being similar with heated air or
gases.
The objects are to keep the oil in a perfectly liquefied state on its way through
the implement to the nozzle or burner, whence it issues heated to a certain extent,
by passing it through an annular chamber which surrounds a central steam
chamber and is itself surrounded by an annular steam chamber, forming a hot
steam jacket enclosing the implement, and to cause the oil to issue from the
nozzle or burner in a fine radiating spray of oil and steam both the oil and steam
orifices being capable of simple and accurate adjustment when spraying is in
operation.
Referring to the accompanying drawing, which shews a full section through the
central axis of the spraying implement as we propose to apply it, A is the central
steam chamber with an annular space around it which forms the oil chamber B,
(working on guide wings b within the annular steam jacket C) these three
chambers comprising two distinct and separate castings. The central chamber A
is traversed by a spindle D (guided in the chamber A hy three or more wings d)
the annular space around which forms the passage to the steam orifice.
The spindle D at its inner end D' is enlarged and externally mitred corresponding
with an internal mitre A' formed on the nozzle or burner so as to adjust the steam
orifice by a screw at D2 working in a tapped thread in the steam chamber A by a
hand wheel D³ outside a packed stuffing box D and gland D on the outer end of
the chamber A. The inner end of the chamber A has an external mitre A
formed upon it which is adjustable relatively to a corresponding internal mitre C₁
upon the projecting closed end of the steam jacket C, by a screw cut at A3 on the
chamber A in a thread, tapped in the jacket casting at C, by a hand wheel A'
outside a packed stuffing box C fitted with a "lantern" ring C and gland C³.
This "lantern" ring affords a simple and convenient means of supplying steam to
the central chamber A from the branch pipe E through the jacket C, which is
thus always kept full of dry steam, and the branch steam pipe E and oil pipe F,
being on the same line, facilitates the mounting of the implement on a hinge joint
so that it can be readily swung clear of the furnace front when required.
Superheated steam is admitted by the branch E and fills the jacket C passing
also into the annular space around the spindle D in the chamber A through
holes C and A' in the jacket C and the chamber A respectively. The liquid fael
enters by the branch F and fills the oil chamber B where it is exposed to the heat
of the superheated steam in the central steam chamber A and in the jacket C and
the operation is as follows:-The two oil and steam orifices of the nozzle or

page_text: burner, having been adjusted by the hand wheels A and D3, oil issues from one in
an inwardly radiating circle and steam from the other in an outwardly radiating
circle, and mixing form a fine circular spray projected into the furnace where it is
ignited, atmospheric air for combustion being admitted through openings in the
furnace front. The two orifices, or either of them, besides being separately
adjusted may be entirely closed by operating the two hand wheels and supply cut
off from the burner, or the oil and steam supply may he separately controlled by
cocks or valves in their respective branches E and F. A cock G is inserted in the
jacket C by opening which steam inay be blown through the oil nozzle of the
burner, to clear out the passages when foul, and any water of condensation which
may collect in the steam jacket will be blown out at the steam nozzle.
It will be readily understood, from the description of the operation of the
implement by steam, that compressed air or gases, under pressure and heated, may
be used as the spraying medium also that the spraying of liquids, other than oils as
liquid fuel, which require to issue from the nozzle in a heated state may be effected
by such an implement.
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-
First. For "spraying" inflammable oils or other liquids in a heated state by
steam, compressed heated air or gases, or by gas generated from the oil by heat,
the construction and application of an implement comprising two chambers eiz.: a
central chamber for steam, heated air, or gases and around it an annular chamber
for oils or other liquids each of said two chambers having a separate orifice in a
nozzle or burner, separately adjustable whilst in operation and the oil or other
liquid being surrounded by an external annular closed chamber to contain steam,
heated air or gases, forming a hot jacket and, preferably, arranged also to supply
steam to the central chamber and its spraying orifice by one brauch, the oil or
other liquid being supplied by a separate branch for convenience of mounting
the implement, substantially as described.
Second. The spraying implement as shewn on the drawing herewith comprising
the internal chamber A surrounded by an annular chamber B and both enclosed in
an annular chamber C forming a hot jacket the orifice of the chamber A being
adjustable by a central spindle D having an externally mitred end D', by means of
a screw D' and hand wheel D and the orifice of the chamber B being adjustable
by an external mitre A2 within a corresponding internal mitre C on the projecting
closed end of the annular jacket C by means of a screw A3 and hand wheel A
upon the cuter end of the chamber A the spindle D and the chamber A working
through packed stuffing hoxes D and C³ respectively the latter being fitted with
a lantern" ring C to allow steam heated air or gas to enter the chamber A
from the jacket C by a branch E in connection with which is fitted a cock G to
blow through the oil passages, and the oil or other liquid entering by a branch F
the whole combined, constructed and operating as described and with reference to
the drawing.
Dated this 23rd day of July 1896.
T. J. DANSON, F. Inst. P.A.,
Newcastle-upon-Tyne, Agent for Applicant.