Im- PROVEMENTS IN LAMPS FOR BURNING PETROLEUM SPIRIT AND OTHER HIGHLY VOLATILE LIQUIDS
Year: 1873

page_text: LETTERS PATENT to Henry Hus, of No. 24, Cranmer Road, Stockwell,
in the County of Surrey, Lamp Maker, for the Invention of “Im-
PROVEMENTS IN LAMPS FOR BURNING PETROLEUM SPIRIT AND OTHER HIGHLY
VOLATILE LIQUIDS."
Sealed the 17th October 1873, and dated the 2nd May 1873.
PROVISIONAL SPECIFICATION left by the said Henry Hus at the
Office of the Commissioners of Patents, with his Petition, on tho
2nd May 1878.
I, HENRY HUS, of No. 24, Cranmer Road, Stockwell, in the County
of Surrey, Lamp Maker, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN LAMPS FOR BURNING PETROLEUM SPIRIT AND OTHER
HIGHLY VOLATILE LIQUIDS," to be as follows:-
The object of this Invention is to construct lamps for burning.
petroleum spirit and other highly volatile liquids, so that three different
lights may be given by it.
The reservoir of the lamp is filled with sponge or other absorbent
material as described in the Specification lodged by Leon Charles

page_text: François Clerc, on the 30th January 1867; on to the top of the reservoir
is screwed a cover carrying the wick tube up which is passed an ordinary
unwoven cotton wick, and the lower end of this wick rests upon the
sponge in the reservoir.
.
Outside the wick tube is another tube capable of being slid up or
down it, as heretofore, to regulate the height of the flame. When a
flame similar to a candle flame is required the outer tube is slid down-
wards, but if a smaller flame is required the outer tube is raised so as to
project more or less above the wick tube and diminish the amount of
evaporation from it; lamps such as above described are now well-known 1
and commonly used, but by my Invention I am enabled to obtain from
such lamps a third light by placing over the top of the wick tube a small
close fitting cap having small perforations formed around its sides.
When this cap is placed over the top of the wick tube a small space will
be left between the top of the cap and the wick tube, and if a light be 1
applied to it streams of gas will issue from the jets, and being ignited a
steady bright light will be obtained; the cap is connected by a chain
with a collar formed around the sliding tube before mentioned, so that if
the small cap is not in use it may still remain connected to the lamp.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Hus in the Great Seal Patent Office on the
1st November 1878.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
Hus, of No. 24, Cranmer Road, Stockwell, in the County of Surrey,
Lamp Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of May, in the year of our
Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henry Hus, Her special license
that I, the said Henry Hus, my executors, administrators, and assigns,
or such others as I, the said Henry Hus, 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,

page_text: 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
PETROLEUM SPIRIT AND OTHER HIGHLY VOLATILE LIQUIDS," upon the con-
5 dition (amongst others) that I, the said Henry Hus, my executors or
administrators, by an instrument 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 Henry Hus, 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
5 following statement thereof, that is to say :-
The object of this Invention is to construct a lamp for burning
petroleum spirit and other highly volatile liquids, so that three different
lights may be given by it.
The reservoir of the lamp is filled with sponge or other absorbent
O material as described in the Specification lodged by Leon Charles
François Clerc, on the 30th January 1867 ; on to the top of the reservoir
is screwed a cover carrying the wick tube up which is passed an ordinary
unwoven cotton wick, and the lower end of this wick rests upon the
sponge in the reservoir.
Outside the wick tube is another tube capable of being slid up or
down it, as heretofore, to regulate the height of the flame. When a
flame is similar to a candle flame is required the outer tube is slid down-
wards, but if a smaller flame is required the outer tube is raised so as to
project more or less above the wick tube, and diminish the amount of
> evaporation from it; lamps such as above described are now well-known
and commonly used, but by my Invention I am enabled to obtain from
such lamps a third light by placing over the top of the wick tube a
small close fitting cap having small perforations formed around its sides.
When this cap is placed over the top of the wick tube a small space will
be left between the top of the cap and the wick tube, and if a light be
applied to it streams of gas will issue from the jets, and being ignited a
steady bright light will be obtained; the cap is connected by a chain

page_text: with a collar formed around the sliding tube before mentioned, so that if
the small cap is not in use it may still remain connected to the lamp.
The Drawing hereunto annexed shews a side elevation partly in
section of a lamp made as above described. a is the reservoir of the
lamp on to which is screwed the cover 6 carrying the wick tube c; d is 5
the tube which surrounds the wick tube and which can be slid up and
down upon it to regulate the height of the flame; e is the cap capable
of being placed on to the top the wick tube as shewn, and having small
perforations formed around it near the top; f is a chain by which the
cap is connected to a collar on the tube d.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that I claim the con-
struction of lamps as herein-before described, for burning petroleum
spirit and other highly volatile liquids, so that three different lights may
be given by them.
In witness whercof, I, the said Henry Hus, have hereunto set my
hand and seal, this First day of November, in the year of our
Lord One thousand sight hundred and seventy-three.
1
1