AN IMPROVED LAMP
Year: 1866

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LETTERS PATENT to George Warriner, of Little Illford, in the County of
Essex, Gentleman, and William Henry Stallard, of Bexley Heath, in the
County of Kent, Gentleman, for the Invention of "AN IMPROVED LAMP."
Sealed the 5th February 1867, and dated the 7th August 1866.
PROVISIONAL SPECIFICATION left by the said George Warriner and
William Henry Stallard at the Office of the Commissioners of Patents,
with his Petition, on the 7th August 1866.
We, GEORGE WARRINER, of Little Illford, in the County of Essex, Gentleman,
and WILLIAM HENRY STALLARD, of Bexley Heath, in the County of Kent,
Gentleman, do hereby declare the nature of the said Invention for "Ax
IMPROVED LAMP," to be as follows:―
The lamp is made of metal, stone, or earthenware which will contain oil,
spirit, or liquid made from minerals, vegetables, or other substances, such as
schiste, petroleum, or coal to burn with a wick made of vegetable or mineral
substances, which oil, spirit, or liquid is: retained in the lamp by sponge,
cork, or other porous material, so that the said oil, spirit, or liquid when
absorbed shall not flow out, and only the vapour from the said oil, spirit, or
liquid shall burn, and the said vapour when burning shall be so confined that
no atmospheric air shall reach it unless admitted by a passage controlled by a
valve or valves.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Warriner and William Henry Stallard in the Great
Seal Patent Office on the 7th February 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
WARRINER, of Little Illford, in the County of Essex, Gentleman, and WILLIAM
HENRY STALLARD, of Bexley Heath, in the County of Essex, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of August, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said George Warriner and William Henry Stallard, Her special licence,
that we, the said George Warriner and William Henry Stallard, our
executors, administrators, and assigns, or such others as we, the said George
Warriner and William Henry Stallard, our 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 "AN IMPROVED LAMP," upon the condition (amongst others)
that we, the said George Warriner and William Henry Stallard, our executors
or administrators, by an instrument in writing under our, 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 we, the said George Warriner and William Henry
Stallard, 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 :-
The improved lamp which constitutes this Invention consists of a container
which may be fitted to a suitable stand when required and composed of
metal, stone, or earthenware, china, glass, or any suitable material for holding
oil, spirit, or liquid made from minerals, vegetables or other substances, such
as schiste, petrolion, or coal to burn with a wick made of vegetable or mineral
substances, which oil, spirit, or liquid is retained in the said container by
sponge, cork, or other porous material, and thereby absorbed and prevented

page_text: from spilling or flowing out except as it escapes in the form of vapour from
combustion through and by the wick. In the inside of the liquid container &
perforated tube is placed for maintaining an open space in and through the
liquid absorbing material, which tube forms an inner wick holder. The outer
wick holder is enclosed in a cup, to which a sliding glass or globe holder is
fitted, and in the bottom portion of this glass or globe we fit a contracted
flame passage, which contraction can. be elevated or depressed at or to a
greater or less height as regards the line of combustion of the burning wick.
The oil, spirit, or liquid, or vapour therefrom when burning is supplied
with the exact quantity of atmospheric air or vapour necessary, by an adjustable
opening or apertures in the bottom or sides of the cup closed by a valve cover
or covers, in this cup the outer wick holder is fitted. The exact quantity of
air or vapour necessary will depend partly upon the state of the atmosphere
and partly upon the volume of light required, but as no air is admitted to the
burning wick below the line of combustion, except that which passes through
the valved opening or apertures above mentioned, by opening, and closing the
same more or less both quantity and volume can always be regulated in
practice as the varying circumstances may render necessary or desirable.
These regulators may be fitted to the ordinary oil, parafin, or other spirit
or vapour lamps, and the contractions herein-before described within the
glass or globe made to rise and fall and be fixed. at any height therein with-
out moving the said glass or globe or their holders.
We propose to make these adjusting contractions of talk in order that the
light may not be intercepted thereby.
We claim the mode of fitting the internal space of the oil and spirit holders,
the wick holder cup with the adjusting air openings therein below the line of
combustion, and also the adjusting contractions at and above the said line of
combustion, as described.
In witness whereof, I, the said George Warriner, have, on behalf of
myself and the said William Henry Stallard, hereunto set my hand
and seal, this Seventh day of February, in the year of our Lord One
thousand eight hundred and sixty-seven.
GEORGE WARRINER. (L.B.)