Improvements in and relating to Oil Spray Lamps.
Year: 1888

page_text: Date of Application, 8th Sept., 1888
Complete Specification Left, 6th July, 1889-Accepted, 7th Sept., 1889
Improvements in and relating to Oil Spray Lamps.
We, WILLIAM HENRI LUTHER and EDGAR MANSFIELD BAYLEY, both of the firm
of Frederick Breby and Company, Manufacturers, of Petershill Road, Glasgow,
Lanarkshire, do hereby declare the nature of our said invention to be as follows:-
This Invention has reference to and comprises a new construction, or arrangement
and combination of the parts, of an oil spray instantaneous lighting lamp and its
burner and combustion chamber, for being actuated by a spray of oil and superheated
steam or steam and air, from water and oil supplied from separate chambers or com-
partments in a combined vessel, the oil and water being forced up to the burner by
compressed air or gas placed within both vessels, from time to time as required. And
which improvements will render such lamps more generally applicable and useful and be
more economical for lighting or heating purposes, and capable of burning crude and
cheaper oils, than has been possible with such spray lamps as, heretofore constructed.
The nature and novelty of this spray lamp, and the improvements connected there-
with, consists all as follows:-The basement of the lamp consists of the oil and water
vessel, preferably made cylindrical the one fitted inside of the other, with separate
bottoms, and one combined top or cover, the bottoms and top being preferably some-
what dished or domed the former with capped jointing Hanges and the latter with
flat flanges and angle iron rings in both vessels to give strength. Either the inner
cylindrical vessel, or the outer annular vessel, surrounding it, may be made the oil
vessel, and the other the water vessel, and have branches to each with fillers and cocks
some distance from the top, so as to have an air pressure space connected in both
vessels, surmounted by a connecting pipe and pressure gauge and tap to indicate the
pressure of air within the two vessels. Compressed air would be forced into both
vessels by a branch near the top, by a pump or lever bellows, to give the required
pressure of air above the oil and water to force both up to the lamp and burner
through separate small vertical pipes fitted through the top cover and extending to
the bottom of the vessels, and preferably with roses at their lower ends to prevent
dust or sediment passing up the pipes to the burner. Each pipe would be fitted with
a regulating cock or valve, to adjust the proper flow of oil and water up to the burner.
The burner would consist of a small cylindrical double chambered vessel, preferably
carried on a bracket from a standard erected on the top of the said vessel as a base-
ment, and of a suitable height for the position of the light where the latter was
required. The upper and lower chamber of this burner would be fitted with adjust-
able screwed ends, either inside or outside the chamber with screw socket branches in
each. To the upper socket branch would be fitted and secured, a circular or
cylindrical combustion or Hame chamber, having formed within it and around the
flame, rising up from the centre of the burner chamber, an annular water or steain
chamber, which would be heated by the flame to convert the water into steain, or to
superheat the steam forced up in a spray through the said small water pipe from
the water vessel below. The upper end of the water pipe would he coupled to a
branch on the annular heating chamber to convey the water or spray of water into
this chamber where it would be heated by the flame as stated, and be conveyed by a
branch on the opposite side to a coil of a few circles round the flame close above the
combustion chamber, and then down to a branch in the lower chamber of the
burner, so as to be forced and led up through a nozzle in the centre of this chamber,
077

page_text: passing up through the oil chamber above.
The upper end of this oil nozzle would
have a small central hole in it, and the upper end of the oil pipe from the oil vessel
would be fitted to a lateral branch in this upper or oil chamber and be forced up
through two three or more fine radial slits or other equivalent cut in the upper
end of the said central oil nozzle to meet the central steam jet passing up through
it from the lower chamber, the upper end of this burner preferably meeting the
lower nipple of the screwed branch or socket above, so that the spray of oil and
steam would be forced up through the combustion chamber and burn within it and
in a long flame above the chamber and steam superheating coil. To ensure the
immediate starting and lighting of this spray oil and steam lamp, an additional
central air jet nozzle is fitted projecting up from a branch in the centre of the
bottom end of the lower steam nozzle chamber. Another small vertical air pipe is
fitted to the top of the air space of the oil or water chamber below, with an
opening and closing tap on it, and having its upper end screwed to the said branch of
the central air nozzle to convey a jet of the forced air to this and mix with and
produce the oil spray which will light at once and cause the flame passing up
through the combustion heating chamber and coil pipe to produce and superheat
the steam from the small water pipe, and force it in a jet up through the oil
nozzle, so that as soon as this steain jet is started in a few minutes, the central air
jet may be wholly shut off. A regulated smail supply of air may with advantage be
admitted through holes at the bottom of the combustion chamber or round the outer
surface of the annular steam heater of the chamber to meet the spray of oil and
steam. The two chambers of the burner are preferably made of a shallow character
so that they would contain little or no liquid water or oil except in the form of
steam or spray; and although the oil or oil spray has been described as fed into the
upper chamber and nozzle, this might be fed into the lower chamber and nozzle, and
the upper chamber made the steam, or steam and air chamber.
In some cases the jet of superheated steam from the heating coil may be made with
a nozzle at or through the wall of the steam chamber of the nozzle and burner, to
inject and heat a small jet or portion of air along with the steam.
A further improvement consists in a new construction or arrangement of the taps
or valves to be fitted and used in the small pipes conducting the oil and water or air
to these burners, so as to pass these through a small orifice in the tap or valve in a
spray, fitted with wire gauze in front of the escaping orifice, the wire gauze being
inserted in the inlet orifice of the tap or valve, enlarged and undercut within for
retaining the wire gauze in position, and which would sift or prevent any dirt or
sediment from passing with the small regulated jet or spray of oil or water through
these taps or valves to the burner.
Instead of the combustion or flame chamber being made in the form of an annular
steam beating vessel, it may be made in the form of a helical coil of pipe, the steam
entering at the bottom and taken away highly heated at the top; and the air entering
at the spray nozzie might be heated by first passing through an open or undulating
coil of pipes, so as to get heated before meeting the flame.
Data thin oh
1000
Improvements in and relating to Oil Spray Lamps.
We, WILLIAM HENRI LUTHER, and EDGAR MANSFIELD BAYLEY, both of the firm
of Frederick Braby and Company, Manufacturers, of Petershill Road, Glasgow,
Lanarkshire, do hereby declare the nature of our invention, and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement in writing, reference being had to the accompanying Sheets of
Drawings, and to the letters and Figures marked thereon, that is to say:
This Invention has reference to and comprises a new or improved construction, or

page_text: arrangement and combination of the parts, of an oil spray instantaneous lighting
lamp and its burner and combustion chamber, for producing the light by a spray
of oil and superheated steam or oil and compressed air, from water and oil supplied
from separate chambers or compartiments in a combined vessel, the oil and water being
forced up to the burner by compressed air or gas placed within both vessels, from time
to time as required. And which improvements will render such lamps more generally
applicable and useful and be more economical for lighting or heating purposes and
capable of burning crude and cheaper oils than has been possible with such spray
lamps as heretofore constructed.
"
And in order that our said invention and the manner of performing or carrying the
same into effect or practice may be properly understood, we have hereunto appended
an explanatory Sheet of Drawings, in which the same reference letters are used to
indicate corre ponding parts in all the figures where shown.
Figure 1 is a side elevation, mostly in section, showing a complete arrangement of
oil spray lamp, with its oil and water tanks or compartments A, B, and air-com-
pressing pump C, and pipes and fittings leading the oil and compressed air to the
burner D, and the water b to the heating chamber c¹ surrounding the burner D, where
it is converted into steam and led by the pipe c² to the burner D and combustion
chamber 24, all constructed in accordance with the improvements of our invention.
Figure 2 is an elevation at right angles to Figure 1, showing the water vessel B and
air compressing pump C in transverse section, and the pipes and fittings in elevation.
Figure 3 shows to a large scale sectional elevations at right angles, and a plan
respectively of the burner D and its inlet oil and air or steam chambers D', D¹¹,
respectively.
Referring to these Drawings, the nature and novelty of this spray lamp, and the
improvements connected therewith, consists all as follows:-The basement of the lamp
consists of the oil vessel or compartment A and the water vessel or compartinent B,
the two forme of one cylindrical shell A, with a divisional end plate B' between
them, and both having close outer ends A", B", respectively. Lateral knee
branches A2, B2, are fitted through the sides of each vessel A B, for filling them from
time to time by a filler, with oil and water respectively up to the level of these
branches, leaving a space As B above the liquid a. b. for the compressed air to act
on it and force the liquids up their respective tubes to the burner all carried and
self contained on this vessel as a framing. The vessel A, B, is carried on side
wheels W on strong studs projecting from brackets at Wi rivetted to the front end
and sides of the vessel A, and has feet W" at the rear end, and removable handles W2
shipped" into sockets W³ at the sides of the vessel B, for holding or transporting
the whole about portably by hand on the ground Z. The vessel A is fitted with an air
compressing pump C, with a packed piston C, and inlet valve C" fitted within it, the
piston rod of the bucket passing up through a stuffing box outside on top of vessel.
so as to be actuated by a hand lever C outside. The stuffing box or cover of this
pump would be fitted with a small inlet check valve, not shown in the Drawings,
which would admit the atmospheric air to the upper side of the piston C at each
downward stroke, and with an outlet discharge check valve C fitted on the lower end of
the cylinder of the pump C, so that each time the handle of the lever C² was depressed,
it would force in the air admitted through the valve C, of the piston C on the
upstroke to the lower part of the cylinder C, through the valve C³ into the vessel A ;
and the raising of the lever C and piston, C1, would force the air admitted to the
upper part of the pump through the valve C to fill the lower part of the pump and
be again forced into the vessel A by the next downward stroke of the piston C, all as
described, and all substantially so far equivalent in construction to that described
in the specification of the Applicant, W. H. Luther's former Patent No 6619
May 3 1888.
By the improvements of this invention we fill the oil into the vessel A. and water
into the Vessel B, and the air pressure space 33 over the water is connected to the air
space A³ over the oil by the couplings 6, 6, and branch pipe 62, the coupling bl
being surmounted by a pressure gauge and tap 6, 61, to indicate the pressure of air

page_text: within the two vessels. The pressure of air in the vessel A forces the oil a up the
vertical pipe a jointed to the upper part of the vessel A, to the oil brauch D₁ of the
burner D, the pipe a being carried down to near the bottom of the vessel A, prefer
ably with a rose at its lower end to prevent sediment entering the pipe a and
burner D. The pipe al is fitted with a screw valve a" or other equivalent to
regulate the flow of the oil a to the burner D, all as indicated by the arrows in
figures 1 and 3. The water b is similarly forced by the pressure air up the vertical
pipe c jointed to the upper part of the vessel B and its upper end to the lower part of
the narrow annular water and steam vessel c¹ surrounding the flame z of the combus
tion chambers over the burner D, the water entering by a very small orifice at c*, in
the upper part of the pipe c, and this pipe c is also formed or fitted with a rose at its
lower end to prevent sediment entering the pipe c, and is fitted with a tap at c" to
regulate the flow of water to the chamber c' of the burner D, where it is converted
into steam at the upper part of the vessel by the action of the flame z on its internal
shell; and from which it passes down, as indicated by the arrows in Figure 1, by
the branch pipe c through the three way tap c³ when turned in one direction and
branch c to the branch of the burner D. The combustion Chamber is
gradually contracted towards the top at a to cause the flame to act better on it and
give greater steam space in the upper part of the chamber c. For instantaneously
starting the light before the steam is raised the vertical air pipe 64 is fitted on the
upper part of the branch coupling communicating with the pipe 62 and the air
space A3 of the vessel A, and connected at top to the lower branch of the three
way tap case ca so as to allow a portion of the pressure air to pass up through the tap
when this is turned in one direction to the chamber D" and burner D, to produce
the flame at starting with a spray of oil and air through the small holes D³, D³, in
the upper part of the burner D, but when steam is raised in the chamber c' this
pressure air is turned off, and the steam turned on to the burner D, by the tap c to
produce the flame by a spray of oil and steam. The flame is indicated by dotted
lines in Figure 1, and when produced by the oil and steain, atmospheric air is
admitted to support the combustion of the flame through the lower part of the
combustion chamber ¹, or through holes in it. The burner consists of a small
cylindrical double chambered vessel D, DI, D", which is here shown as carried on the
lateral branches at top of the pipes al and 64, but it might be carried on a bracket
from a standard erected on the top of the vessel A, as a spiral basement, and of a
suitable height for the position of the light where the latter was required. The
chambers D, D", of this burner D, are each fitted with screw socket couplings, to
which the lateral branch at the top of the oil pipe a' is coupled, as also the branch c
leading from the cock e to which the steam pipe c² and the air pipe bare coupled
to admit either steam or air to produce the oil spray flame, the oil passing through a
small hole D* from the chamber D¹ at an angle to meet the steam or air jet passing
through a slightly larger hole D³ from the chamber D¹¹, of the burner D, and produce
the flame in the centre of the combustion chamber z¹. The spray flame z produced
within the lower part of the combustion chamber 2' beats or boils the water within
the outer annular case c' of this chamber, and extends in a long cylindrical flame
above it to give the light: When desired the upper part of the water pipe c instead
of being directly attached to the lower part of the chamber c¹ might be led up to and
through a small coil pipe, erected over the combustion chamber cl and brought down
and joined to the lower branch at c of the steam and water chamber c¹ all as dotted
in and indicated by dotted arrows at c* in Figure 1.
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 we are
aware of Specification No. 11517 A.D. 1888, and claim nothing described and
claimed therein, but what we claim is :-
First. The construction, or general arrangement and combination of the parts of
an oil spray instantaneous lighting lamp, and its buruer and combustion chamber,
for producing the light by a spray of oil and superheated steam, or oil and com-

page_text: pressed air, from water and oil supplied and forced by compressed air from separate
chambers in a combined vessel, substantially as and in the manner herein described,
in reference to and shown in the accompanying Drawings.
Second. In oil and water chamber spray lamps, the instantaneous starting or
lighting of the lamp by a jet of compressed air combining and spraying with the
oil before the steam is raised from the water, substantially as and in the manner
herein described, in reference to and shown in the accompanying Drawings.
Third. In oil and steam spray lamps, with oil and water chambers the generating
of the steam within an annular chamber surrounding the flame, and having the water
fed and regulated to said chamber, substantially as and in the manner herein
described, in reference to and shown in the accompanying Drawings.
Dated this 6th day of Tul. 1000
.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.

page_text: Date of Application, 8th Sept., 1888
Complete Specification Left, 6th July, 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in and relating to Oil Spray Lamps.
We WILLIAM HENRI LUTHER, and EDGAR MANSFIELD BAYLEY, both of the firm
of Frederick Braby and Company, Manufacturers, of Petershill Road, Glasgow,
Lanarkshire, do hereby declare the nature of our said invention to be as follows:
.
This Invention has reference to and comprises a new construction, or arrangement
and combination of the parts, of an oil spray instantaneous lighting lamp and its
burner and combustion chamber, for being actuated by a spray of oil and superheated
steam or steam and air, from water and oil supplied from separate chambers or com-
partments in a combined vessel, the oil and water being forced up to the burner by
compressed air or gas placed within both vessels, from time to time as required. And
which improvements will render such lamps more generally applicable and useful and be
more economical for lighting or heating purposes, and capable of burning crude and :
cheaper oils, than has been possible with such spray lamps as heretofore constructed.
The nature and novelty of this spray lamp, and the improvements connected there-
with, consists all as follows:-The basement of the lamp consists of the oil and water
vessel, preferably made cylindrical the one fitted inside of the other, with separate
bottoms, and one combined top or cover, the bottoms and top being preferably some-
what dished or domed the former with capped jointing flanges and the latter with
flat flanges and angle iron rings in both vessels to give strength. Either the inner
cylindrical vessel, or the outer annular vessel, surrounding it, may be made the oil
vessel, and the other the water vessel, and have branches to each with fillers and cocks
some distance from the top, so as to have an air pressure space connected in both.
vessels, surmounted by a connecting pipe and pressure gauge and tap to indicate the
pressure of air within the two vessels. Compressed air would be forced into both :
vessels by a branch near the top, by a pump or lever bellows, to give the required
pressure of air above the oil and water to force both up to the lamp and burner
through separate small vertical pipes fitted through the top cover and extending to
the bottom of the vessels, and preferably with roses at their lower ends to prevent
dust or sediment passing up the pipes to the burner. Each pipe would be fitted with
a regulating cock or valve, to adjust the proper flow of oil and water up to the burner.
The burner would consist of a small cylindrical double chambered vessel, preferably:
carried on a bracket from a standard erected on the top of the said vessel as a base-
ment, and of a suitable height for the position of the light where the latter was
required. The upper and lower chamber of this burner would be fitted with adjust-
able screwed ends, either inside or outside the chamber with screw socket branches in
each. To the upper socket branch would be fitted and secured, a circular or
cylindrical combustion or flame chamber, having formed within it and around the
flame, rising up from the centre of the burner chamber, an annular water or steam
chamber, which would be heated by the flame to convert the water into steam, or to
superheat the steam forced up in a spray through the said small water pipe from
the water vessel below. The upper end of the water pipe would be coupled to a
branch on the annular heating chamber to convey the water or spray of water into
this chamber where it would be heated by the flame as stated, and be conveyed by a
branch on the opposite side to a coil of a few circles round the flame close above the
combustion chamber, and then down to a branch in the lower chamber of the
burner, so as to be forced and led up through a nozzle in the centre of this chamber,
passing up through the oil chainber above. The upper end of this oil nozzle would
have a small central hole in it, and the upper end of the oil pipe from the oil vessel
would be fitted to a lateral branch in this upper or oil chamber and be forced up
through two three or more fine radial slits or other equivalent cut in the upper

page_text: end of the said central oil nozzle to meet the central steam jet passing up through
it from the lower chamber, the upper end of this burner preferably meeting the
lower nipple of the screwed branch or socket above, so that the spray of oil and
steam would be forced up through the combustion chamber and burn within it and
in a long flanic above the chamber and steam superheating coil. To ensure the
immediate starting and lighting of this spray oil and steam lamp, an additional
central air jet nozzle is fitted projecting up from a branch in the centre of the
bottom end of the lower steam nozzle chamber. Another small vertical air pipe is
fitted to the top of the air space of the oil or water chamber below, with an
opening and closing tap on it, and having its upper end screwed to the said branch of
the central air nozzle to convey a jet of the forced air to this and mix with and
produce the oil spray which will light at once and cause the flame passing up
through the combustion heating chamber and coil pipe to produce and superheat
the steam from the small water pipe, and force it in a jet up through the oil
nozzle, so that as soon as this steam jet is started in a few minutes, the central air
jet may be wholly shut off.
A regulated small supply of air may with advantage be
admitted through holes at the bottom of the combustion chamber or round the outer
surface of the annular steam heater of the chamber to meet the spray of oil and
steam. The two chambers of the burner are preferably made of a shallow character
so that they would contain little or no liquid water or oil except in the form of
steam or spray and although the oil or oil spray has been described as fed into the
upper chamber and nozzle, this might be fed into the lower chamber and nozzle, and
the upper chamber made the steam, or steam and air chamber.
. In some cases the jet of superheated steam from the heating coil may be made with
a nozzle at or through the wall of the steam chamber of the nozzle and burner, to
inject and heat a small jet or portion of air along with the steam.
A further improvement consists in a new construction or arrangement of the taps
or valves to be fitted and used in the small pipes conducting the oil and water or air
to these burners, so as to pass these through a small orifice in the tap or valve in a
spray, fitted with wire gauze in front of the escaping orifice, the wire gauze being
inserted in the inlet orifice of the tap or valve, enlarged and undercut within for
retaining the wire gauze in position, and which would sift or prevent any dirt or
sediment from passing with the small regulated jet or spray of oil or water through
these taps or valves to the burner.
Instead of the combustion or flame chamber being made in the form of an annular
steam heating vessel, it may be made in the form of a helical coil of pipe, the steam
entering at the bottom and taken away highly heated at the top; and the air entering
at the spray nozzle might be heated by first passing through an open or undulating
coil of pipes, so as to get heated before meeting the flame.
Dated this 8th day of September 1888.
W. R. M. THOMSON & Co.,
A cents.
COMPLETE
SPECIFICATION..
Improvements in and relating to Oil Spray Lamps.
We, WILLIAM HENRI LUTHER, and EDGAR MANSFIELD BAYLEY, both of the firm
of Frederick Braby and Company, Manufacturers, of Petershill Road, Glasgow,
Lanarkshire, do hereby declare the nature of our invention, and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement in writing, reference being had to the accompanying Sheet of
Drawings, and to the letters and Figures marked thereon, that is to say :—
This Invention has reference to and comprises a new or improved construction, or
arrangement and combination of the parts, of an oil spray instantaneous lighting
lamp and its burner and combustion chamber, for producing the light by a spray
of oil and superheated steam or oil and compressed air, from water and oil supplied
from separate chambers or compartments in a combined vessel, the oil and water being

page_text: forced up to the burner by compressed air or gas placed within both vessels, from time
to time as required. And which improvements will render such lamps more generally
applicable and useful and be more economical for lighting or heating purposes and
capable of burning crude and cheaper oils than has been possible with such spray
lamps as heretofore constructed.
And in order that our said invention and the manner of performing or carrying the
same into effect or practice may be properly understood, we have hereunto appended
an explanatory Sheet of Drawings, in which the sanie reference letters are used to
indicate corresponding parts in all the figures where shown.
Figure 1 is a side elevation, mostly in section, showing a complete arrangement of
oil spray lamp, with its oil and water tanks or compartments A, B, and air-com-
pressing pump C, and pipes and fittings leading the oil and compressed air to the
burner D, and the water to the heating chamber c¹ surrounding the burner D, where
it is converted into steam and led by the pipe c² to the burner D and combustion
chamber ¹, all constructed in accordance with the improvements of our invention.
Figure 2 is an elevation at right angles to Figure 1, showing the water vessel B and
air compressing pump in transverse section, and the pipes and fittings in elevation.
Figure 3 shows to a large scale sectional elevations at right angles, and a plan
respectively of the burner D and its inlet oil and air or steam chambers D',-D",
respectively.
2:
Referring to these Drawings, the nature and novelty of this spray lamp, and the
improvements connected therewith, consists all as follows:-The basement of the lamp
consists of the oil vessel or compartment A and the water vessel or compartment. B,
the two formed of one cylindrical shell A, with a divisional end plate B' between
them, and both having close outer ends A", B₁, respectively. Lateral knee
branches A; B, are fitted through the sides of each vessel A B, for filling them from
time to time by a filler, with oil and water respectively up to the level of these
branches, leaving a space A3 B3 above the liquid a. b. for the compressed air to act
on it and force the liquids up their respective tubes to the burner all carried and
self contained on this vessel as a framing. The vessel A, B, is carried on side
wheels W on strong studs projecting from brackets at W rivetted to the front end
and sides of the vessel A. and has feet W" at the rear end, and removable handles W
shipped" into sockets W3 at the sides of the vessel B, for holding or transporting
the whole about portably by hand on the ground Z. The vessel A is fitted with an air
compressing pump (, with a packed piston C, and inlet valve C fitted within it, the
piston rod of the bucket passing up through stuffing box outside on top of vessel
so as to be actuated by a hand lever (2 outside. The stuffing box or cover of this
pump would be fitted with a small inlet check valve, not shown in the Drawings,
which would admit the atmospheric air to the upper side of the piston C¹ at each
downward stroke, and with an outlet discharge check valve C3 fitted on the lower end of
the cylinder of the pump C, so that each time the handle of the lever C³ was depressed,
it would force in the air admitted through the valve (, of the piston on the
upstroke to the lower part of the cylinder C, through the valve C³ into the vessel A ;
and the raising of the lever and piston C, would force the air admitted to the
upper part of the pump through the valve C to fill the lower part of the pump and
be again forced into the vessel A by the next downward stroke of the piston C¹, all as
described, and all substantially so far equivalent in construction to that described
in the specification of the Applicant, W. H. Luther's former Patent No 6619
May 3 1888.
By the improvements of this invention we fill the oil into the vessel A and water
into the Vessel B, and the air pressure space B³ over the water is connected to the air
space A³ over the oil by the couplings 1, 1, and branch pipe 62, the coupling 1
being surmounted by a pressure gauge and tap 63, 11, to indicate the pressure of air
within the two vessels. The pressure of air in the vessel A forces the oil a up the
vertical pipe a jointed to the upper part of the vessel A, to the oil branch D' of the
burner D, the pipe al being carried down to near the bottom of the vessel A, prefer-
ably with a rose at its lower end to prevent sediment entering the pipe a' and

page_text: 'burner D. The pipe a is fitted with a screw valve a" or other equivalent to
regulate the flow of the oil. a to the, burner D, all. as indicated by the arrows in
figures 1 and 3. The water is similarly forced by the pressure air up the vertical
pipe c jointed to the upper part of the vessel B and its upper end to the lower part of
the narrow annular water and steam vessel c¹ surrounding the flame of the combus-
tion chamber over the burner D, the water entering by a very small orifice at c*, in
the upper part of the pipe c. and this pipe e is also formed or fitted with a rose at its
lower end to prevent sediment entering the pipe c, and is fitted with a tap at c¹¹ to
regulate the flow of water to the chamber c of the burner D, where it is converted
into steam at the upper part of the vessel by the action of the flame on its internal
shell; and from which it passes down, as indicated by the arrows in Figure 1, by
the branch pipe through the three way tap c³ when turned in one direction and
branch to the branch of the burner D. The combustion Chamber ¹ is
gradually contracted towards the top at "to cause the flame to act better on it and
give greater steam space in the upper part of the chamber c¹. For instantaneously
starting the light before the steam is raised the vertical air pipe b is fitted on the
upper part of the branch coupling 711 communicating with the pipe and the air
space A³ of the vessel A, and connected at top to the lower branch of the three
way tap case e so as to allow a portion of the pressure air to pass up through the tap
when this is turned in one direction to the chamber D₁ and burner D, to produce
the flame at starting with a spray of oil and air through the small holes D³, D³, in
the upper part of the burner D, but when steam is raised in the chamber c¹ this
pressure air is turned off, and the steam turned on to the burner D. by the tap c³ to
produce the flame by a spray of oil and steam. The flame is indicated by dotted
lines in Figure 1, and when produced by the oil and steam, atmospheric air is
admitted to support the combustion of the flamme through the lower part of the
combustion chamber ¹, or through holes in it. The burner consists of a small
cylindrical double chambered vessel D, D¹, D", which is here shown as carried on the
lateral branches at. top of the pipes a and b, but it might be carried on a bracket
from a standard erected on the top of the vessel A, as a spiral basement, and of a
suitable height for the position of the light where the latter was required.
chambers D, D, of this burner D, are each fitted with screw socket couplings, to
which the lateral branch at the top of the oil pipe a¹ is coupled, as also the branch cl
leading from the cock c³ to which the steam pipe c² and the air pipe 4 are coupled
to admit either steam or air to produce the oil spray flame, the oil passing through a
small hole D2 from the chamber D at an angle to meet the steam or air jet passing
through a slightly larger hole D³ from the chamber D¹¹, of the burner D, and produce
the flame in the centre of the combustion chamber ¹. The spray flame z produced'
within the lower part of the combustion chamber heats or boils the water within
the outer annular case c¹ of this chamber, and extends in a long cylindrical flame
above it to give the light. When desired the upper part of the water pipe c instead
of being directly attached to the lower part of the chamber c' might be led up to and
through a small coil pipe, erected over the combustion chamber c and brought down
and joined to the lower branch at ct of the steam and water chamber call as dotted
in and indicated by dotted arrows at * in Figure 1.
The
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. The construction, or general arrangement and combination of the parts of
an oil spray instantaneous lighting lamp, and its burner and combustion chamber,
for producing the light by a spray of oil and superheated steam, or oil and com-
pressed air, from water. and oil supplied and forced by compressed air from separate
chambers in a combined vessel, substantially as and in the manner herein described,
in reference to and shown in the accompanying, Drawings.
Second. The constructing of oil and steam spray lamps with oil and water
chambers, for feeding by compressed air the oil to the burner, and the water to

page_text: the combustion chamber either with or without a heating coil pipe, substantially
as and in the manner herein described, in reference to and shown in the accom-
panying Drawings.
Third. In oil and water chamber spray lamps, the instantaneous starting or
lighting of the lamp by a jet of compressed air combining and spraying with the
oil before the steam is raised from the water, substantially as and in the manner
herein described, in reference to and shown in the accompanying Drawings.
Fourth. In oil and steam spray lamps, with oil and water chambers the generating
of the steam within an annular chamber surrounding the flame, and having the water
fed and regulated to said chamber, substantially as and in the manner herein
described, in reference to and shown in the accompanying Drawings.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.