IMPROVEMENTS IN OIL LAMPS
Year: 1874

page_text: LETTERS PATENT to Joseph Siddall and Francis Gutteridge, of the
Firm of J. Siddall and Company, of Dewsbury, in the County of
York, Tinners and Braziers, for the Invention of "IMPROVEMENTS IN
OIL LAMPS."
Sealed the 17th July 1874, and dated the 19th January 1874.
PROVISIONAL SPECIFICATION left by the said Joseph Siddall and
Francis Gutteridge at the Office of the Commissioners of Patents,
with their Petition, on the 19th January 1874.
We, JOSEPH SIDDALL and FRANCIS GUTTERIDGE, of the Firm of
3 J. Siddall and Company, of Dewsbury, in the County of York, Tinners
and Braziers, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN OIL LAMPS," to be as follows:-
This Invention has for its object the construction of oil lamps in such
manner as that no low deck or waste compartment is required, that no oil
can escape even when tilted, that the "wick" may readily be introduced
or moved, that the supply of oil may be regulated or controlled at will,
and that in the event of the supply being at any time more than needed

page_text: the surplus will by a self-acting appliance be removed to the oil
chamber.
The vessel or chamber containing the oil is enclosed or covered by an
air-tight lid or cover underneath the oil vessel, and extending in front
thereof is a tube within which the wick is received, one end being closed
by a screw, the other being the wick-burning end. A pipe of smaller
diameter regulated by a tap connects the said tube with the oil vessel
above, and so the supply of oil is obtained.
Should the supply be greater than requisite the surplus is received in
a cup or cavity formed at the burning end of the wick tube, which cup
or cavity communicates by means of a small return pipe or syphon with
the space within the oil vessel above. The air being exhausted from
within such space the oil in excess ascends the pipe and returns to the
oil chamber.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph Siddall and Francis Gutteridge in the Great
Seal Patent Office on the 18th July 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOSEPH
SIDDALL and FRANCIS GUTTERIDGE, of the Firm of J. Siddall and
Company, of Dewsbury, in the County of York, Tinners and Braziers,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of January, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Joseph Siddall and Francis Gutteridge,
Her special licence that we, the said Joseph Siddall and Francis
Gutteridge, our executors, administrators, and assigns, or such others as
we, the said Joseph Siddall and Francis Gutteridge, our executors, admi-
nistrators, 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, excrcise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN OIL LAMPS,"

page_text: upon the condition (amongst others) that we, the said Joseph Siddall
and Francis Gutteridge our executors or administrators, by an instru-
ment in writing under our, or their, or one of their hands and seals,
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 we, the said Joseph Siddall and Francis
Gutteridge, do hereby declare the nature of our said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement and accompanying
Sheet of Drawings :
This Invention has for its object the construction of oil lamps in such
manner so that no low deck or waste compartment is required, that no oil
can escape even when tilted, that the "wick" may readily be introduced
or removed, that the supply of oil may be regulated or controlled at
will, and that in the ovent of the supply being at any time more than
needed the surplus will by a self-acting appliance be removed to the oil
chamber.
The vessel or chamber containing the oil is enclosed or covered by an
air-tight lid or cover. Underneath the oil vessel, and extending in front
thereof is a tube within which the wick is received, one end being closed
by a screw, the other being the wick-burning end. A pipe of smaller
diameter regulated by a tap connects the said tube with the oil vessel
above, and so the supply of oil is obtained.
Should the supply be greater than requisite the surplus is received in
a cup or cavity formed at the burning end of the wick tube, which cup
or cavity communicates by means of a small return pipe or syphon with
the space within the oil vessel above. The air being exhausted from
within such space the oil in excess ascends the pipe and returns to the
oil chamber.
In order that this Invention may be more fully understood we herein
give reference to an accompanying Sheet of Drawings marked with
figures and letters of reference.
Fig. 1 is an elevation partly in section, and Fig. 2 a plan view of
alamn constructed according to our Invention

page_text: A is the vessel or chamber for containing the oil covered with an air-
tight lid B, the supply being introduced through the aperture C which
is fitted with a screwed plug. D is the tube for containing the wick
extending from the back of the lamp D', where the wick is introduced,
to the burning end D³, terminating in the cup or dish E. This tube D
is in communication with the oil vessel A through the pipe F, the flow
being regulated by the tap G.
Should the flow or supply be greater than necessary the surplus oil is
carried back from the dish E into the oil vessel by the syphon pipe H,
hence the necessity of keeping the oil vessel perfectly air-tight.
Having thus fully described the nature of the said Invention and
shewn by Drawings and description thereof in what manner the same is
to be performed or carried into practical operation, I would have it
understood that I do not confine or restrict myself to the precise details
in the construction shewn and described, as modifications may be made
therein without departing from the main features of the Invention, but
what I claim is the construction of oil lamps in such manner as to effect
the objects or the purposes substantially as herein described and illus-
trated by the accompanying Sheet of Drawings.
In witness whereof, I, the said Francis Gutteridge, for and on :
behalf of myself and the said Joseph Siddall, have hereunto set
my hand and seal, this Seventeenth day of July, in the year of
our Lord One thousand eight hundred and seventy-four.
FRANCIS GUTTERIDGE. (L.S.)
Witness,
J. W. TASKER,
Clerk to Tasker & Brierley,
Patent Agents,
Halifax & Bradford.