AN IMPROVEMENT UPON THE AIR LAMP, THE PROPERTIES WHEREOF CONSIST IN REFLECTING A MORE GENERAL AND STRONGER LIGHT BY MEANS OF CERTAIN VALVES AND A NEWLY-CONSTRUCTED BURNER, THAT THE LIGHT MAY BE RAISED TO ANY HEIGHT, AND COMMON LAMP OIL MAY BE BURNT, AND THE LAMP NOT LIABLE TO BE OUT OF . ORDER, AND OTHERWISE,
Year: 1803

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
WARNER the younger, of Little New Street, Shoe Lane, in the City of
London, Brass Founder, send greeting.
WHEREAS His present Majesty hath, by His Letters Patent under the
Great Seal of the United Kingdom of Great Britain and Ireland, bearing.
date the Twenty-ninth day of June last, for Himself, His heirs and successors,
given and granted to me, the said Edward Warner, my executors, admi-
nistrators, and assigns, His especial licence, privilege and authority, for the
sole use and benefit of my Invention of "AN IMPROVEMENT UPON THE AIR
LAMP, THE PROPERTIES WHEREOF CONSIST IN REFLECTING A MORE GENERAL AND
STRONGER LIGHT BY MEANS OF CERTAIN VALVES AND A NEWLY-CONSTRUCTED
BURNER, THAT THE LIGHT MAY BE RAISED TO ANY HEIGHT, AND
COMMON LAMP OIL MAY BE BURNT, AND THE LAMP NOT LIABLE TO BE OUT OF .
ORDER, AND OTHERWISE," and for making, using, exercising, and vending my
said Invention within that part of the said United Kingdom of Great
Britain and Ireland called England, Dominion of Wales, and Town of
Berwick-upon-Tweed, for the term of fourteen years, subject to a proviso
or condition for me, the said Edward Warner, to cause a description of the
nature of the said Invention, and in what manner the same is to be per-
formed, by writing under my hand and seal, to be enrolled in His Majesty's
High Court of Chancery, within one calendar month next after the date
thereof, as in and by the said Letters Patent, relation being thereto had, will
will more fully appear.

page_text: NOW KNOW YE, that I, the said Edward Warner, in compliance with
the said proviso, do hereby declare that my said Invention is particularly
described by the Drawing hereunto annexed, and the following explanation;
that is to say:-
Figure 1, the neck of the reservoir, so constructed, on account of its width,
as effectually to prevent the oil from fouling or clogging up. The bottom of the
valve, which has a communication with the reservoir, takes to pieces in an
instant, leaving an opening into the vase, whereby any person may wipe out
with ease any foulness that may be contracted by inferior oil. To facilitate
the filling the reservoir with oil without bubbling and spilling, the valve forms
a kind of funnel, in which the oil is poured into the vase through the bottom
of the valve, which turns off and on, similar to a cock. The whole of this valve
is confined by a ring and two knobs, acting horizontally. Above the screw of
the neck a small piece of wire is fastened to the inner part of the valve, passing
through the centre of the funnel for the better placing of the same.
Figure Two, the Conducting Heel.-The principle of this Invention is, to
flow the oil level with the light, and raise the light to any height in the glass
chimney to prevent shade. No lamp using a rack and glass holder can flow
the oil level with the light without the heel or conductor being raised level with
the top of the tubes, either inside or outside of the glass chimney. The Patent
or Conducting Fcel rises level with the top of the inside tubes or light.
The tubes are circular, and not slit through at top like the tubes of other
lamps.
Figure Threc. To prevent shade, and give a more general light, by means of
the conductor or heel rising level with the top of the inside tubes, the light can
be raised any height from the outside tube, and be supplied constantly with oil
level with the light. This occasions the lamp to burn stronger and more
brilliant, and the cotton not liable to crust, giving so small a shade, owing to
the light burning in the centre part of a globular chimney; and the glass
holder is made with an hinge or spring on the opposite side, and can admit the
glass to be any size, and yet keep the glass holder as small as the outward
tube, giving room for the swell of the glass chimney to hang over the outside
tube in order to cast down nearly a perpendicular light. The glass chimney
can, by touching a spring or screw, be immediately taken off or on occa-
sionally, without removing the glass holder.
Figure Four, the Cleansing Valve, to prevent the lamp from getting foul.-
The plug is ground into the valve, and the valve screwed at the mouth; the
plug is fastened into a cap and works on a swivel; the cap screws on the
mouth of the valve and forces in the plug, and makes the valve air-tight.

page_text: This Invention renders it extremely easy for persons to keep their own
lamps continually clean, and in good order.
Figure Five. The plug and cap, as it appears when drawn out of the valve,
leaving open a large vacuity in the heel, by which means the lamp empties
itself of it's foul oil, which is plainly demonstrated in the next Figure.
Figure Six. The representation of the heel of the lamp, with it's valve
opened, shewing part of the rack at bottom. This improvement is solely for
the advantage of burning common oil, which clogs up all other lamps nearly at
the first using.
Figuro Seven. The rack has a tube soldered to it, and screwed at the top.
The box of the rack is not slit through to pass the rack, but has a spring on the
side:
Figure Eight. The reservoir turned upwards, and shewing its valve opened,
and leaving a large aperture. This valve is more fully explained in Figure One.
Figure Nine is the wick holder, with an inside screw to fasten on the rack,
Figure Ten, shewing the two pieces of the valve (Figure One), which,
screwed into the neck of the reservoir, forms the complete valve and funnel.
In witness whereof, I have hereunto set my hand and seal, this Thirteenth
day of July, in the year of our Lord One thousand eight hundred and