IMPROVEMENTS IN LAMPS FOR BURNING NAPTHA AND LIKE FLUIDS
Year: 1867

page_text: LETTERS PATENT to George Glover, of Ranelagh Road, Pimlico, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN LAMPS FOR
BURNING NAPTHA AND LIKE FLUIDS."-A communication from abroad by
La Chandor reciding at Great Stable Street St. Petersburgh.
Sealed the 6th September 1867, and dated the 9th March 1867.
PROVISIONAL SPECIFICATION left by the said George Glover at the
Office of the Commissioners of Patents, with his Petition, on the
9th March 1867.
I, GEORGE GLOVER, of Ranelagh Road, Pimlico, in the County of Mid-
dlesex, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN LAMPS FOR BURNING NAPTHA AND LIKE FLUIDS," to be as follows:-
This Invention has for its object improvements in lamps for burning naptha
and like fluids. The interior of the reservoir of the lamp is packed with
cotton or other material capable of absorbing the fluid poured into the vessel.
In the centre of such reservoir is a tube with numerous slits or openings by
which a certain part of the interior of the vessel is kept free from the cotton
or other absorbent material. Into the interior space or chamber thus formed
within the reservoir the lower part of the wick below the wick tube is
received. The packing of the vessel is sufficient to absorb the whole of the

page_text: measure of liquid with which the lamp is charged, so that none will flow out
from the vessel even on its being inverted. The wick holder is formed in the
following manner :-Two tubes, one within the other, are used; the lower end
of the outer one is brazed or fixed to the cap or screw nozzle of the containing
vessel. The interior tube is of somewhat less diameter than the outer tube, so
as to leave a small space between the tubes, and such inner tube is, by pre-
ference, brazed or fixed out of the centre of the larger or outside tube. The
wick is drawn through the inner tube, and the lower end of the wick descends
into the tubular passage or space within the reservoir of the lamp, and by
contact with the cotton or other absorbent packing the liquid is given off to
the wick and by it conducted to the upper end thereof where the wick rises
above the top of the wick tube. In order to adjust the flame an exterior tube
capable of sliding on the outer of the two tubes before mentioned is used, and
according as this tube is raised or lowered more or less of the wick above the
wick tube is exposed or covered. The form of the reservoir may be greatly
varied. The wicks used are preferred to be soft braided wicks, with or with-
out a central core of soft spun cotton.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Glover in the Great Seal Patent Office on the 9th
September 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
GLOVER, of Ranelagh Road, Pimlico, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of March, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
George Glover, Her special licence that I, the said George Glover, my
executors, administrators, and assigns, or such others as I, the said George
Glover, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times theréafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN LAMPS FOR
BURNING NAPTHA AND LIKE FLUIDS," a communication to me from abroad by
Laslo Chandor, a person resident at Great Stable Street, St. Petersburgh,

page_text: upon the condition (amongst others) that I, the said George Glover, my
executors or administrators, by an instrument in writing under my or their
hand, should particularly describe and ascertain the nature of the said In-
vention, and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said George Glover, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
This Invention has for its object improvements in lamps for burning
naptha and like fluids. The interior of the reservoir of the lamp is by
preference packed with cotton, but other material capable of absorbing the
fluid poured into the vessel might be employed. In the centre of such
reservoir is a tube with numerous slits or openings by which a certain part of
the interior of the vessel is kept free from the cotton or other absorbent
material. Into the interior space or chamber thus formed within the reservoir
the lower part of the wick below the wick tube is received. The packing of
the vessel is sufficient to absorb the whole of the measure of liquid with which
the lamp is charged, so that none will flow from the vessel even on its being
inverted. The wick holder is formed in the following manner :-Two tubes, one
within the other, are used; the lower end of the outer one is brazed or fixed to
the cap or screw nozzle of the containing vessel. The interior tube is of some-
what of less diameter than the outer tube, so as to leave a small space between
the tubes, and such inner tube is by preference brazed or fixed out of the
centre of the larger or outside tube. The wick is drawn through the inner
tube, and the lower end of the wick descends into the tubular passage or
space within the reservoir of the lamp, and by contact with the cotton or other
absorbent packing the liquid is given off to the wick, and by it conducted to
the upper end thereof where the wick rises above the top of the wick tube.
In order to adjust the flame an exterior tube is according to this Invention
combined with the wick holder; this tube is made capable of sliding up and
down on the outer of the two tubes before mentioned, and according as the
exterior tube is raised or lowered more or less of the wick above the wick
tube is exposed or covered. The form of the reservoir may be greatly varied.
The wicks used are preferred to be soft braided wicks, with or without a
central core of soft spun cotton.
In order that the Invention may be fully understood and readily carried into
effect, I will proceed to describe the Drawings hereunto annexed.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 shews a side view of a lamp constructed as above described;
Figure 2 is a plan view of the same; Figure 3 is a vertical section of the lamp;
this Figure shews the manner in which the lamp is extinguished, a cap or
extinguisher being placed on the top of the wick tube.
In each of these Figures a is the reservoir of the lamp packed with cotton
wool; this is a far better material to use than sponge, which is the material
heretofore most generally employed. 6 is the tube in the centre of the
reservoir; the tube is formed of thin sheet metal with numerous slits or
openings formed through it. c is the cap or screw nozzle which carries the
wick holder; the wick holder is formed of an outer tube d, which at its lower
end is brazed or fixed to the screw cap. e is the interior tube of the wick
holder, between which and the exterior tube a small space is left as shewn.
The lower end of the wick tube is not concentric with the outer tube, but is
soldered up to one of its sides. The wick passes up through the inner tube,
and its lower end descends into the tubular space b in the centre of the
reservoir of the lamp, and absorbs liquid from the cotton packing. f is the
regulator combined with the wick holder; the regulator is composed of a tube
capable of sliding up or down on the exterior tube of the wick holder. When
the lamp is to be lighted the regulator is pushed down to its lowest position,
the wick which projects somewhat above the wick holder is then lighted, and
the regulator is at once raised until the lamp burns with a bright clear flame.
9 is an extinguisher for extinguishing the flame.
In witness whereof, I, the said George Glover, have hereunto set my
hand and seal, this Seventh day of September, in the year of our Lord
One thousand eight hundred and sixty-seven.
GEO. GLOVER. (L.S.)