An Im- PROVEMENT IN LAMPS FOR BURNING HYDROCARBON SPIRIT OR OILS
Year: 1872

page_text: LETTERS PATENT to John Law Tomkys, of Haslingden, in the County
of Lancaster, Chemist and Druggist, for the Invention of "An Im-
PROVEMENT IN LAMPS FOR BURNING HYDROCARBON SPIRIT OR OILS."
Sealed the 19th July 1872, and dated the 26th January 1872.
I, JOHN LAW TOMKYS, of Haslingden, in the County of Lancaster,
5 Chemist and Druggist, do hereby declare the nature of the said Invention
for "AN IMPROVEMENT IN LAMPS FOR BURNING HYDROCARBON SPIRIT OB OILS,”,
to be as follows:-
- The object of my Invention is an arrangement by which hydrocarbon.
spirit or oil can be burnt in ordinary hand or other lamps with as little
O danger as though the vessel or container was filled with sponge or other.
absorbent material in the usual way, but by which the full capacity of
the vessel or container is made available. By this arrangement the

page_text: necessity of pouring back the superabundant oil or spirit after the
absorbent material has taken up all it will is prevented, and the lamp
when filled will burn at least twice as long.
.
My Invention consists of the addition of an intermediate small
chamber between the burner and the container. This chamber is filled
or partly filled with the usual sponge, cotton, or other absorbent material,
from which intermediate small chamber a length or lengths of cotton or
other material affording capillary attraction passes to the bottom of the
vessel or container, and by means of which the small chamber is kept
always supplied with a sufficiency of the spirit or oil to supply the
burner. This length of cotton or cottons or other absorbent material
affording capillary attraction may or may not be enclosed in a tube.
The intermediate chamber being screwed on to the vessel or container,
none of the oil or spirit can be spilt. In this intermediate chamber filled
with absorbent material there may be more or less distance between the
burner and vessel or container, and may be permanently attached to the
container, and the container filled by means of a screw.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Law Tomkys in the Great Seal Patent
Office on the 25th July 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN-
LAW TOMKYS, of Haslingdon, in the County of Lancaster, Chemist and
Druggist, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of January, in the
year of our Lord One thousand eight hundred and seventy-two, in
the thirty-fifth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Law Tomkys, Her
special licence that I, the said John Law Tomkys, my executors, admi-
nistrators, and assigns, or such others as I, the said John Law Tomkys,
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,

page_text: and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "AN IMPROVE-"
MENT IN LAMPS FOR BURNING HYDROCARBON SPIRIT OR OILS," upon the
condition (amongst others) that I, the said John Law Tomkys, 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.
a

page_text: To more fully explain the nature of this my said Invention, reference
is made to accompanying Drawings as follows:-
Fig. 1 is an elevation of connecting chamber, a being the chamber;
b, milled collar; c, screw; d, suction pipe.
Fig. 2, section of the above connecting chamber. a, interior of con-5
necting chamber; b, section of collar; c, washer of leather or other
suitable material; d, section of screw; e, section of pipe for suction
wick.
Fig. 3, elevation shewing lamp with connecting chamber.
Fig. 4, section of lamp shewing the principle of Patent; a, ordinary 1
benzoline burner; b, wick tube connecting chamber; d, cotton wool,
sponge, or other suitable material; f, suction wick passing from
connecting chamber to bottom of supply cistern; 9, cistern.
Having thus described the nature of my said Invention, and the mode
of carrying the same into effect, now what I claim and desire to be 1
secured to me by Letters Patent is, the said improvement in lamps for
burning hydrocarbons, spirits or oils, by the introduction of the inter-
mediate chamber a, a, Figs. 1 and 2, between the body of the lamp as
herein described, and as shewn on accompanying Drawing or any mere
modification thereof.
In witness whereof, I, the said John Law Tomkys, have hereunto
set my hand and seal, this Twenty-fifth day of July, in the year
of our Lord One thousand eight hundred and seventy-two.
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