IMPROVEMENTS IN LAMPS FOR BURNING COAL OIL OR OTHER LIKE HYDROCARBON FLUIDS
Year: 1871

page_text: LETTERS PATENT to Robert Westell Kemp, of Church, near Accring-
ton, in the County of Lancaster, for the Invention of "IMPROVEMENTS
IN LAMPS FOR BURNING COAL OIL OR OTHER LIKE HYDROCARBON FLUIDS."
-A communication from abroad by George T. Parry, of Phila-
delphia, Pa., United States of America.
Sealed the 14th May 1872, and dated the 15th November 1871.
PROVISIONAL SPECIFICATION left by the said Robert Westell Kemp
at the Office of the Commissioners of Patents, with his Petition,
on the 15th November 1871.
I, ROBERT WESTELL KEMP, of Church, near Accrington, in the
County of Lancaster, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN LAMPS FOR BURNING COAL OF OR OTHER LIKE
HYDROCARBON FLUIDS," being a communication to me from abroad by
George T. Parry, of Philadelphia, Pa., United States of America, to be
as follows:-
This Invention consists in connecting to the pipe or pipes from the

page_text: circular chamber with perforations in its periphery or casing, and below
the chamber the exterior of the tube has a screw thread encircled by a
nut which is used to regulate or cut off the supply of air by covering
more or less the perforations in this part of the tube. The bottom of
the tube is screwed into an elbow pipe communicating with the foun-
tain, and in the interior of the tube there is a rod formed at the top
as an external cone corresponding with an internal cone at the bottom
of the chamber, the bottom of the rod being fixed to the elbow
pipe or passed through a gland, and capable of being moved by a
screw and milled head, so that by screwing the tube more or less in 1
the elbow pipe or turning the milled head the external cone can
be entered more or less into the internal one. On the top of the rod
just below the cone is placed a cotton wick or other absorbent, and
outside the tube there is a small cup for the collection of droppings of
oil, and also a gallery when required for a glass globe or shade. The oil:
from the fountain passes into the tube where it is absorbed by the wick
or absorbent, and if for a few seconds the tube is slightly heated gas
will be evolved from the oil and passed between the cones into the
chamber, and through the perforations around it, and when the gas is
ignited there will be a brilliant light without smell, smoke, or the
requirement of a chimney, the supply of air being regulated by turning
the nut on the tube, and the supply of gas maintained as long as the
tube surrounding the absorbed oil is heated by the light.
The wick or absorbent is not consumed but simply absorbs oil to give
off gas, and therefore the wick has only to be renewed when after a long
interval it has become more or less clogged.
This Invention is applied to chandeliers, side lights, street lights, and
stand lights, and for halls, churches, and other places or dwellings where
gas cannot be obtained it supplies a desideratum which has long been
required.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of November, in the
year of our Lord One thousand eight hundred and seventy-one,
in the thirty-fifth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Robert Westell Kemp,
Her special license that I, the said Robert Westell Kemp, my
executors, administrators, and assigns, or such others as I, the said
Robert Westell Kemp, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter 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
COAL OIL OR OTHER LIKE HYDROCARBON FLUIDS," being a communication to
me from abroad by George T. Parry, of Philadelphia, Pa., United States
of America, upon the condition (amongst others) that I, the said
Robert Westell Kemp, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
Invention, 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 Robert Westell Kemp, 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, that is to say:-
The object of this Invention is to construct lamps in such a manner
that the gas from coal oil and other like hydrocarbon fluids when
mixed with air and ignited shall give a brilliant light without smell,
smoke, or the requirement of a chimney, the lamps being formed as
chandeliers, side lights, street lights, stand lights, or in any other
required manner, and for halls, churches, and other places or dwellings
where gas cannot be obtained a desideratum is supplied that has long
5 been required.
The manner in which this Invention is to be performed will be clearly
Miles desexintion thomonf Reference

page_text: being had to the Figures and letters on the accompanying Sheet of
Drawings in which Figs. 1, 2, 3, and 4 are full sized views representing
the details of my improvements, and Fig. 5 a view of one of my
improved stand or table lamps drawn to a reduced scale.
To the elbow pipe a communicating with the fountain or vessels b, &
Fig. 5, containing the hydrocarbon oil or fluid, is screwed a tube c, to the
top of which is screwed or soldered a screw d carrying a circular
chamber e with perforations ƒ in its periphery, and on the screw there
is a thumb nut 9 which is used to regulate or cut off the supply of air
by covering more or less the perforations h. In the interior of the 1
tube c there is a rod i formed at the top as an external cone k
corresponding with an internal cone 7 at the top of the tube, the bottom
of the rod being screwed to the elbow pipe a, or passed through a gland,
and capable of being moved by a screw with a milled head, so that by
turning the tube more or less in the elbow pipe or by turning the milled 1
head the external cone k can be entered more or less into the internal
one 7. On the rod i is placed a cotton wick m or other absorbent, and
outside the tube there is a small cup n for the collection of droppings of
oil, and also when required a gallery o for a glass globe or shade p, but
when there is no gallery there is a disc or wheel q for turning the 2
tube c, and regulating the positions of the cones. The oil from the
fountain passes into the tube c, where it is absorbed by the wick or
absorbent m, and if for a few seconds the chamber e is slightly heated
gas will be evolved from the oil and pass between the cones k, l, into
the chamber e and through the perforations f around it, and when the 2
gas is ignited there will be brilliant jets of light, the supply of air being
regulated by turning the nut g on the screw d, and the supply of gas
maintained as long as the chamber is heated by the light.
The wick or absorbent is not consumed, but simply absorbs oil to give
off gas, and therefore the wick has only to be renewed when after a long o

page_text: the general arrangement of the improvements in lamps for burning coal
oil or other like hydrocarbon fluids, as herein described and illustrated on
the accompanying Sheet of Drawings.
In witness whereof, I, the said Robert Westell Kemp, have here-
unto set my hand and seal, this Twenty-third day of April, in
the year of our Lord One thousand eight hundred and seventy-
two
Signed, sealed, and delivered by the
Robert Westell
within-named
Kemp, in the presence of
G. SEPTIMUS HUGHES,
R. W. KEMP. (L.S.)
Patent Agent,
Manchester.