IMPROVEMENTS IN APPLYING AIR TO LAMPS
Year: 1840

page_text: HALPIN'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HALPIN, junior, of Dublin, Civil Engineer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Seventh day of November, in the fourth year of Her reign,
did, for Herself, Her heirs, and successors, give and grant unto me, the said
George Halpin, Her especial licence, full power, sole privilege and authority,
that I, the said George Halpin, my exors, adñiors, and assigns, or such others
as I, the said George Halpin, my exors, adiñors, or assigns, should at any
time agree with, and no others, from time to time and at all times during the
term of years therein expressed, should and lawfully might make, use, exercise,
and vend, within England, Wales, and the Town of Berwick upon Tweed,
my Invention of "IMPROVEMENTS IN APPLYING AIR TO LAMPS;" in which said
Letters Patent is contained a proviso that I, the said George Halpin, shall
cause a particular description of the nature of my said Invention, and in what.
manner the same is to he performed, to be inrolled in Her said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, as in and by the
same, reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
George Halpin, do hereby declare the nature of my Invention, and the
manner in which the same is to be performed, are described and, ascertained

page_text: in and by the following statement thereof, reference being had to the Drawin
hereunto annexed, and to the figures and letters marked thereon (that is t
say:
My Invention relates to a mode of applying air to the flames of lamps
thereby producing greater brilliancy of light from such flames, and consists i
apparatus for applying a blast or current of air from a blower or fan, or from
a reservoir containing condensed air, and-in the addition of a separate passag
for the blast or current of, air through the burner of the lamp to the flame, or
which it acts vertically, not causing deflection, as in Bymior's lamp.
DESCRIPTION OF THE DRAWING.
Figure 1 represents the section of so much of the burner of an ordinary
argand lamp as is necessary for explanation. a, a, represents the passage for oil
in which the wick moves; b, b, the passage through which the blast or current of
air is impelled, which passage is formed by an additional tube placed within
that usually forming the inner casing of an argand lamp. e represents a tube
leading the blast or current of air from the blower or fan f, which may be
"worked by wheels and pinions moved by a weight or spring, or by pullies or by
a combination of those or any other contrivance applicable to giving sufficient
velocity to the fan spindle of the blower. A current of air from a réservoir, in
which it can be condensed and allowed to escape by a regulating meter or any
other mode of causing a blast of air admitting of regulation, will be application
to this Invention. The blast produced by one blower may be fixed, or by
flexible tubes be led to many lamps. Figure 2 is a plan on which is shewn
the additional passage for the blast of air; c, representing the ordinary inner
tube or
casing; d, the additional tube: this tube may be screwed to the lamp,
as shown in section, Figure 1, or inade to fit tightly with a clamp screw.
Figure 3 is a section of part of the burner of a lamp of three wicks, concentric
or otherwise, where a, a, a, shew the oil chambers or passages in which the
lamp wicks move; 6, 6, 6, the passages for blasts or currents of air, which
passages are formed by additional tubes or divisions."
.
Having stated the mode of construction which I have found to serve best,
I wish it to be understood that I do not confine myself to those particular
dimensions or. forms, but claim any modification of the apparatus herein de-
scribed, or any part of it which would be framed on the principle of my Inven-
tion. I am aware that a lamp ог lamps have been made in which, as in
Bymier's lamps, a current of air has been brought into contact with the flame,
deflecting it. I do not therefore make any claim to such modes of applying
the atmospheric air. But what I claim is, "-"
*

page_text: First, the application of a blast or current of air (whether produced by a
blower or condensation or otherwise) on the principle of adding a blast of air
in addition to the ordinary draft of air produced by the burning of a lamp, as
herein-before described.
Secondly, I claim the particular mode of applying the blast of air as a hollow
cylinder acting vertically on the inside of the flame, and not causing deflection.
Thirdly, I claim the form and application of the separate passage for the blast
or current of air through the burner, still leaving the centre space open, as in the
ordinary argand oil lamp, which separate passage may be slightly varied in breadth.
I also claim the Invention of this separate passage, whether applying a blast
of atmospheric air in its ordinary state or mixed with gas, or for applying pure
oxygen or other gas to the flame of a lamp; but make no claim to the burning
oxygen gas with the oil lamp, as hitherto effected by Mr Gurney in the Bude
light, my claim in such case being solely as to the use of this passage, and of
this mode for burning the gas. I propose the application of this Invention
chiefly to lamps in which oil is used with wicks, but claim its application also
to lamps in which the light is otherwise produced.
In witness whereof, I, the said George Halpin, junior, have hereunto
set my hand and seal, this Seventh day of May, in the year of our
Lord One thousand eight hundred and-forty-one.
GEORGE (L.S.) HALPIN, JUN'.
AND BE IT REMEMBERED, that on the Seventh day of May, in the
year of our Lord 1841, the aforesaid George Halpin came before our said
Lady the Queen in her Chancery, and acknowledged the Specification aforesaid,
and all and everything therein contained and specified, in form above written.,
And also the Specification aforesaid was stamped according to the tenor of the
Statute made for that purpose.