IMPROVEMENTS IN SPRAY LAMPS
Year: 1885

page_text: This Specification was, upon the 16th day of June 1888, amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
I, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN SPRAY LAMPS," to be as follows, that is to say:
My said Invention relates to lamps of the kind in which oil is projected from
nozzle or burner in the form of spray, the jet of spray being ignited for illuminating
purposes.
In my improved spray lamp the burner consists of an outer and an inner nozzle,
and the oil is led by a pipe to the inner nozzle whilst compressed air or steam is
led into the space between the inner and outer nozzles; or the compressed air or
steam may be led to the inner nozzle, the oil being in that case supplied to the
space between the two nozzles. The oil is supplied so as to have a certain pressure
or head at the burner and so as to be capable of issuing therefrom at a suitable rate
independently of the action of the compressed air or steam which throws the oil
into spray. The burner is set in the middle of a cup which becoming heated to a
certain extent serves to vaporise any part of the oil spray which may be scattered
from the main jet. The oil may be supplied from a cistern or tank placed at such
an elevation relatively to the lamp as to have a suitable head; or the oil may be
elevated from a closed cistern or tank placed at a lower level by means of pressure
applied in any convenient way. Where several lamps are to be used in one
establishment they may be all supplied from a single cistern or tank by means of
branch pipes; and the compressed air or steam for a number of lamps may also be
supplied from a single source.
It will in many cases be most convenient to work each lamp by means of steam
generated by itself. For this purpose a small annular boiler may be placed above
the flame or ignited jet, such boiler being provided with a tube for leading the
steam down into the inner nozzle or into the space between the inner and outer
nozzles of the burner. Or the boiler may consist of tubing placed so as to be acted
on by the heat of the flame, and when the steam is to be generated by the action
of the flame on a tube through which water is passed, such tube is made of
considerable thickness relatively to its bore so that the jet of steam may not be
rendered irregular by temporary variations of the heat acting on the tube
01
When

page_text: steam is used to throw the oil into spray holes for the admission of air to the flame
are formed in the sides of the cup which surrounds the burner the action of the jet
being such as to draw air in through the holes. When the lamp is made with
apparatus for generating its own steam, it must be provided with a pipe connection
for attaching a portable pump to be worked by hand for forcing in air to produce 5
the jet of spray, when starting the lamp.
Dated this eleventh day of June 1985
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION (AMENDED).
Improvements in Spray Lamps.
I, JAMES BALLANTYNE HANNAY of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, 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:-that is to say :-
My said Invention relates to lamps of the kind in which oil is projected from a
nozzle or burner in the form of spray, the jet of spray being ignited for illuminating
purposes.
In my improved spray lamp the burner consists of an outer and an inner nozzle,
and the oil is led by a pipe to the inner nozzle whilst compressed air or steam is
led into the space between the inner and outer nozzles; or the compressed air or
steam may be led to the inner nozzle, the oil being in that case supplied to the
space between the two nozzles. The oil is supplied so as to have a certain pressure
or head at the burner and so as to be capable of issuing therefrom at a suitable rate
independently of the action of the compressed air or steam which throws the oil
into spray. The burner is set in the middle of a cup which becoming heated to a
certain extent serves to vaporise any part of the oil spray which may be scattered
from the main jet. The oil may be supplied from a cistern or tank placed at such
an elevation relatively to the lamp as to have a suitable head; or the oil may be
elevated from a closed cistern or tank placed at a lower level by means of pressure
applied in any convenient way: Where several lamps are to be used in one
establishment they may be all supplied from a single cistern or tank. by means of
branch pipes; and the compressed air or steam for a number of lamps may also be
supplied from a single source.
It will in many cases be most convenient to work each lamp by means of steam
generated by itself. For this purpose a sinal boiler may be placed above the flame
or ignited jet, such boiler being provided with a tube for leading the steam down
into the inner nozzle or into the space between the inner and outer nozzles of the

page_text: burner. Or the boiler may consist of tubing placed so as to be acted on by the
heat of the flame, and when the steam is to be generated by the action of the flame
on a tube through which water is passed, such tube is made of considerable
thickness relatively to its bore so that the jet of steam may not be rendered
irregular by temporary variations of the heat acting on the tube. When steam is
used to throw the oil into spray holes for the admission of air to the flame are
formed in the sides of the cup which surrounds the burner, the action of the jet
being such as to draw air in through the holes. When the lamp is made with
apparatus for generating its own steam, it must be provided with a pipe connection
for attaching a portable pump to be worked by hand for forcing in air to produce
the jet of spray when starting the lamp.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and representing a simple and convenient form of my
improved spray lamp.
Figure, 1, on the accompanying drawings shows the lamp as applied to an
ordinary lamp post. Figure, 2, is a vertical section of the lamp; and figure, 3, is
an enlarged vertical section of the burner and other details. In these drawings the
same reference numerals are used to mark the same or like parts wherever they are
repeated.
In figure, 1, on the accompanying sheet of drawings an enlargement at the
bottom of the lamp post, 4, is taken advantage of to form a cistern or tank, 5, for
holding the oil. To obtain the necessary pressure to elevate the oil to the lamp a
tube or pipe, 6, is led from the street main or other source and passes up the centre
of the lamp post, a cock, 7, being fixed near its upper end to regulate the supply of
water. The upper end of this tube, 6, is fixed to the upper end of a pipe, 8, which
has a small tube or pipe, 9, passing through it; these pipes, 8, 9, pass down through
the lamp post, their lower ends dipping into the oil in the tank, 5. On the cock, 7,
being opened the water passes up the pipe, 6, by its pressure and part of it passes
down again through the small internal tube, 9, which extends nearly to the bottom
of the tank, 5, and tends to force the oil from the tank up the pipe, 8.
When a
cock, 10, on a branch, 12, from the pipe, 8, is opened the oil passes into and issues
from the top of an inner nozzle, 11, at a suitable rate. It is then broken into spray
by a jet of steam in a manner hereinafter described and can be lighted for
illuminating purposes. The nozzle, 11, is screwed into the branch pipe, 12, which
is fixed to the pipe, 8.
In order to generate the steam to work the lamp a cock, 13, on a pipe, 14, which
is fixed to the top of the pipe, 8, is opened, and part of the water from the pipe, 6,
passes up the pipe, 14, into a small boiler, 15, held above the flame or ignited jet
which heats the water passing through the pipe, 14, and in the boiler, 15, and
generates the steam required. This steam then passes down a pipe, 16, which
passes through the bottom of the boiler, 15, and becomes superheated by passing
through the flamo whilst on a cock, 25, being opened the steam enters the space
between the inner nozzle, 11, and an outer nozzle, 17, from the top of which it
issues throwing the oil issuing from the inner nozzle, 11, into spray which can be
lighted as herein before stated. drain cock, 26, is provided at the lower end of
the pipe, 16, by which any water of condensation may be removed.
A metal cup, 18, surrounds the nozzles or burner, 11, 17, and this cup, 18,
becoming heated to a certain extent serves to vaporise any part of the oil spray
which may be scattered from the main jet. Holes are formed in the bottom and
sides of the cup, 18, for the admission of air to the flame the action of the jet being
such as to draw air in through these holos.
A pipe connection, 19, is provided for attaching a portable pump to be worked
by hand for forcing air into the space between the inner and outer nozzles, 11, 17,
to produce the jet of spray when starting the lamp.
A lantern, 21, is arranged to enclose the flame a door 27, being provided at one
side for access to the interior. A conical cover, 22, is fixed to the top of the

page_text: lantern, 21, and as shown is made with a common arrangement of louvre
ventilator, 23, at the top. A pair of brackets, 24, cast on or riveted to the
boiler, 1., serves for fixing the boiler to the inside of the top of the cover, 22, and
a safety valve, 20, suitably loaded is provided in the top of the boiler, 15.
When steam is supplied from a separate boiler it is led through a looped pipe
rising up above the burner so as to be superheated by the flame. This looped pipe
may also be used for heating air when compressed air is used instead of steam.
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
+. The combination of parts forming the improved spray lamp, and consisting of
the combined concentric nozzles for the oil and the compressed air or steam, the
cup surrounding the nozzles and perforated for the admission of air, and the boiler
or steam generator having its water-supply pipe and steam-delivering pipe passing
through the flame, all substantially as hereinbefore described.
2. The combination consisting of the combined concentric nozzles for the oil and
compressed air or steam the cup surrounding the nozzles and perforated for the
admission of air, and the looped pipe-heating the air or steam substantially as
hereinbefore described.
3. The supplying of the oil under sufficient pressure to issue at the nozzle and so
that the entire force of the steam or compressed air neting on it may be utilised in
throwing it into spray, substantially as hereinbefore described.
Dated this twenty eighth day of October 190K
EDMUND HUNT,
Applicant's Agent.

page_text: I, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN SPRAY LAMPS," to be as follows, that is to
Bay :-
:-
My said Invention relates to lamps of the kind in which oil is projected from a
nozzle or burner in the form of spray, the jet of spray being ignited for illuminating
purposes.
In my improved spray lamp the burner consists of an outer and an inner nozzle,
and the oil is led by a pipe to the inner nozzle whilst compressed air or steam is
led into the space between the inner and outer nozzles; or the compressed air or
steam may be led to the inner nozzle, the oil being in that case supplied to the
space between the two nozzles. The oil is supplied so as to have a certain pressure
or head at the burner and so as to be capable of issuing therefrom at a suitable rate
independently of the action of the compressed air or steam which throws the oil
into spray. The burner is set in the middle of a cup which becoming heated to a
certain extent serves to vaporise any part of the oil spray which may be scattered
from the main jet. The oil may be supplied from a cistern or tank placed at such
an elevation relatively to the lamp as to have a suitable head; or the oil may be
elevated from a closed cistern or tank placed at a lower level by means of pressure
applied in any convenient way. Where several lamps are to be used in one
establishment they may be all supplied from a single cistern or tank by means of
branch pipes; and the compressed air or steam for a number of lamps may also be
upplied from a single source.
It will in many cases be most convenient to work each lamp by means of steam
generated by itself. For this purpose a small annular boiler may be placed above
the flame or ignited jet, such boiler being provided with a tube for leading the
steam down into the inner nozzle or into the space between the inner and outer
nozzles of the burner. Or the boiler may consist of tubing placed so as to be acted
on by the heat of the flame, and when the steam is to be generated by the action
of the flame on a tube through which water is passed, such tube is made of
considerable thickness relatively to its bore so that the jet of steam may not be
rendered irregular by temporary variations of the heat acting on the tube When

page_text: steam is used to throw the oil into spray holes for the admission of air to the flame
are formed in the sides of the cup which surrounds the burner the action of the jet
being such as to draw air in through the holes.. When the lamp is made with
apparatus for generating its own steam, it must be provided with a pipe connection
for attaching a portable pump to be worked by hand for forcing in air to produce
the jet of spray, when starting the lamp.
I, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, 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, that is to say :-
My said Invention relates to lamps of the kind in which oil is projected from a
nozzle or burner in the form of spray, the jet of spray being ignited for illuminating
purposes.
In my improved spray lamp the burner consists of an outer and an inner nozzle,
and the oil is led by a pipe to the inner nozzle whilst compressed air or steam is
led into the space between the inner and outer nozzles; or the compressed air or
steam may be led to the inner nozzle, the oil being in that case supplied to the
space between the two nozzles. The oil is supplied so as to have a certain pressure
or head at the burner and so as to be capable of issuing therefrom at a suitable rate
independently of the action of the compressed air or steam which throws the oil
into spray. The burner is set in the middle of a cup which becoming heated to a
certain extent serves to vaporise any part of the oil spray which may be scattered
from the main jet. The oil may be supplied from a cistern or tank placed at such
an elevation relatively to the lamp as to have a suitable head; or the oil may be
elevated from a closed cistern or tank placed at a lower level by means of pressure
applied in any convenient way. Where several lamps are to be used in one
establishment they may be all supplied from a single cistern or tank by means of
branch pipes; and the compressed air or steam for a number of lamps may also be
supplied from a single source.
It will in many cases be most convenient to work each lamp by means of steam
generated by itself. For this purpose a small boiler may be placed above the flame
or ignited jet, such boiler being provided with a tube for leading the steam down
into the inner nozzle or into the space between the inner and outer nozzles of the

page_text: burner. Or the boiler may consist of tubing placed so as to be acted on by the
heat of the flame, and when the steam is to be generated by the action of the flame
on a tube through which water is passed; such tube is made of considerable
thickness relatively to its bore so that the jet of steam may not be rendered
irregular by temporary variations of the heat acting on the tube. When steam is
used to throw the oil into spray holes for the admission of air to the flame are
formed in the sides of the cup which surrounds the burner, the action of the jet
being such as to draw air in through the holes. When the lamp is made with
apparatus for generating its own steam, it must be provided with a pipe.connection
for attaching a portable pump to be worked by hand for forcing in air to produce
the jet of spray when starting the lamp.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and representing a simple and convenient form of my
improved spray lamp.
Figure, 1, on the accompanying drawings shows the lamp as applied to an
ordinary lamp post. Figure, 2, is a vertical section of the lamp; and figure, 3, is
an enlarged vertical section of the burner and other details. In these drawings the
same reference numerals are used to mark the same or like parts wherever they are
repeated.
In figure, 1, on the accompanying sheet of drawings an enlargement at the
bottom of the lamp post, 4, is taken advantage of to form a cistern or tank, 5, for
holding the oil. To obtain the necessary pressure to elevate the oil to the lamp a
tube or pipe, 6, is led from the street main or other source and passes up the centre
of the lamp post, a cock, 7, being fixed near its upper end to regulate the supply of
water. The upper end of this tube, 6, is fixed to the upper end of a pipe, 8, which
has a small tube or pipe, 9, passing through it; these pipes, 8, 9, pass down through
the lamp post, their lower ends dipping into the oil in the tank, 5. On the cock, 7,
being opened the water passes up the pipe, 6, by its pressure and part of it passes
down again through the small internal tube, 9, which extends nearly to the bottom
of the tank, 5, and tends to force the oil from the tank up the pipe, 8. When a
cock, 10, on a branch, 12, from the pipe, 8, is opened the oil passes into and issues
from the top of an inner nozzle, 11, at a suitable rate. It is then broken into spray
by a jet of steam in a manner hereinafter described and can be lighted for
illuminating purposes. The nozzle, 11, is screwed into the branch pipe, 12, which
is fixed to the pipe, 8.
In order to generate the steam to work the lamp a cock, 13, on a pipe, 14, which
is fixed to the top of the pipe, 8, is opened, and part of the water from the pipe, 6,
passes up the pipe, 14, into a small boiler, 15, held above the flame or ignited jet
which heats the water passing through the pipe, 14, and in the boiler, 15, and
generates the steam required. This steam then passes down a pipe, 16, which
passes through the bottom of the boiler, 15, and becomes superheated by passing
through the flame whilst on a cock, 25, being opened the steam enters the space
between the inner nozzle, 11, and an outer nozzle, 17, from the top of which it
issues throwing the oil issuing from the inner nozzle, 11, into spray which can be
lighted as herein before stated. A drain cock, 26, is provided at the lower end of
the pipe, 16, by which any water of condensation may be removed.
A metal cup, 18, surrounds the nozzles or burner, 11, 17, and this cup, 18,
becoming heated to a certain extent serves to vaporise any part of the oil spray
which may be scattered from the main jet. Holes are formed in the bottom and
sides of the cup, 18, for the admission of air to the flame the action of the jet being
such as to draw air in through these holes.
A pipe connection, 19, is provided for attaching a portable pump to be worked
by hand for forcing air into the space between the inner and outer nozzles, 11, 17,
to produce the jet of spray when starting the lamp.
A lantern, 21, is arranged to enclose the flame a door 27, being provided at one
side for access to the interior. A conical cover, 22, is fixed to the top of the

page_text: lantern, 21, and as shown is made with a common arrangement of louvre,
ventilator, 23, at the top. A pair of brackets, 24, cast on or riveted to the
boiler, 15, serves for fixing the boiler to the inside of the top of the cover, 22, and
a safety valve, 20, suitably loaded is provided in the top of the boiler, 15.
When steam is supplied from a separate boiler it is led through a looped pipe
rising up above the burner so as to be superheated by the flame. This looped pipe
may also be used for heating air when compressed air is used instead of steam.
1.
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 combination of parts forming the improved spray lamp, and consisting of
the combined concentric nozzles for the oil and the compressed air or steam, the
cup surrounding the nozzles and perforated for the admission of air, and the boiler
or steam generator having its water-supply pipe and steam-delivering pipe passing
through the flame, all substantially as herein before described.
2. The combination consisting of the combined concentric nozzles for the oil and
compressed air or steam the cup surrounding the nozzles and perforated for the
admission of air, and the looped pipe heating the air or steam substantially as
herein before described.
A
3. The supplying of the oil under sufficient pressure to issue at the nozzle and so
that the entire force of the steam or compressed air acting on it may be utilised in
throwing it into spray, substantially as herein before described.
Dated this twenty-eighth day of October 1885.