Improvements in Paraffin Lamps.
Year: 1890

page_text: Date of Application, 25th Nov., 1890
Complete Specification Left, 24th Aug., 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Paraffin Lamps.
I EDWIN KAYE of Altofts near Normanton in the County of York Lamp-man,
do hereby declare the nature of this invention to be as follows:-
:-
My invention has for its object to render paraffin lamps safe from all liability to
explosion or firing, and consists as follows:-
A dome or cover piece is provided, which encloses the greater part of the wick
tube, and more especially that part thereof in which the opening is left for the cog-
wheels, pricker, or other appliance for raising the wick.
The wick tube is provided at or near its lower end with a flange, which rests
In order to
upon a ledge formed in the opening at the top of the lamp bottom.
keep this opening closed air or vapour tight, and to leave no escape for oil or
vapour except up the wick tube, I provide an elastic washer of suitable material,
preferably of leather, between the afore-mentioned ledge and the flange of the
wick tube. The flange of the wick tube is kept pressed down upon this washer
with sufficient force to make the joint tight, by means of a union nut and a flange
or ledge round the dome or cover piece.
The only openings therefore for the escape of the air or vapour are the upper
end of the wick tube and the opening in the same for the cog-wheels or pricker as
afore-mentioned. In order to carry away any vapour which escapes through the
latter opening or finds access into the space between the upper part of the wick
tube and the dome or cover, I provide a narrow tube which passes air tight
through the ledge in the opening at the top of the paraffin vessel, and through the
vessel, and the bottom of the same, into a lower vessel or stand. Any paraffin oil
or vapour which may have found its escape into the space between the wick tube
and the dome or cover, passes down through this narrow escape tube into the
lower vessel just referred to, and so away from the burner, and obviates any risk of
firing the same.
The hotter the vessel containing the paraffin becomes, so much the more rapidly
does the paraffin pass from the upper vessel, escaping at the cog-wheel or pricker
slot, and down the narrow tube into the lower vessel. An air hole of very small
dimension is provided at the upper part of the lower vessel.
Dated this 24th day of November 1890.
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Paraffin Lamps.
I EDWIN KAYE of Altofts near Normanton in the County of York Lamp-man
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:-
My invention has for its object to render paraffin lamps safe from all liability to
explosion or firing, and consists as follows:-
A dome or cover piece is provided, which encloses the greater part of the wick
tube, and more especially that part thereof, in which the opening is left for the
cog wheels to engage with and raise the wick.
The wick tube is provided at or near its lower end with a flange, which rests upon
a ledge formed in the opening of the paraffin vessel. In order to keep this opening
closed air tight or vapour tight, and to leave no passage for the escape of the

page_text: paraffin or vapour from the paraffin vessel except up the wick tube, I provide an
elastic washer of suitable material, preferably of leather between the aforementioned
ledge and the flange of the wick tube. The flange of the wick tube is kept
pressed down upon this washer with sufficient force to make the joint tight by means
of a union nut or screw.
The only openings therefore for the escape of air or vapour are the upper end
of the wick tube and the opening in the same for the cog wheels. In order to carry
away any vapour, which escapes through the latter opening, or finds access into
the space between the wick tube and the dome or cover, I provide a narrow tube,
which passes air or vapour tight through the ledge in the opening at the top of
the paraffin vessel, and through the vessel and the bottom of the same into a lower
vessel or stand. Any paraffin oil or vapour which may have found its escape into
the space between the wick tube and the dome or cover, passes down through this
narrow escape tube into the lower vessel just referred to, and so away from the
burner, and obviates any risk of firing the same.
An air hole of very small dimension is provided at the upper part of the lower
vessel.
And in order that my invention and the manner in which the same is to be per-
formed may be more clearly understood, reference is given to the accompanying
drawing, which is a vertical section of a lamp constructed in accordance with my
invention. In this :-
a is the wick tube.
is the dome-piece or cover, which with the outer tube c of the burner, encloses
the greater part of the wick tube a, and more particularly that portion in which
the opening is provided for the cog wheels d to engage with and raise the wick e.
is the Hange of the wick tube a, soldered to the outer tube c, which rests upon
the ledge of the paraffin vessel /.
is the clastic washer for keeping tight the joint between the flange and the
ledge g
C
is the union nut or screw for holding down the flange f and the outer tube e of
the burner.
kis the narrow escape tube, which is soldered or otherwise fitted tight in the
top and bottom ledges (g and 1) of the paraffin vessel, and passes through the
paraffin vessel without any communication between the interior of the vessel and
the interior of the tube.
m is the lower vessel or hollow stand of the lamp, in which the escaping paraffin
is condensed and collected.
The hole for the axis of the cog wheel in the outer tube c is made as tight a fit
as possible, and may if desired be still more perfectly closed by means of a small
washer of leather. I find however little tendency of the vapour to escape through
this opening.
The tube is preferably of small diameter, so as to act more readily as a con-
denser, as well as being a conducting passage to the hollow stand m.
The hotter the upper part of the vessel becomes, so much the more rapidly
does the paraffin escaping at the cog wheel slot, pass from the upper vessel / down
the narrow tube into the lower vessel.
o are air vents.
Although my invention is described with reference to lamps used for burning
paraffin, it is evident that other volatile oils may be employed for feeding such
lamps. Moreover I wish it to be understood, that the lamp shewn in the accom-
panying drawing is intended as an illustration merely, and I do not restrict myself
to the design of lamp as shewn, but,
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1°. In lamps used for burning paraffin and similar volatile oils, the use of a cover

page_text: or enclosing piece, surrounding the wick tube and more particularly that part con-
taining the opening for the cog wheels; and a pipe connecting the interior of such
enclosing piece with a lower vessel, for the purpose of collecting and conducting
into the latter any gas (vapour) which may escape into the enclosing piece from the
wick tube.
20. The means for rendering lamps, burning paraffin and similar inflammable oils,
safe; consisting of a dome or cover piece to prevent access of inflammable vapour,
escaping at the cog wheel slots, to the light; and a tube for condensing and carrying
away such vapours to a separate vessel.
30. The improved lamp for burning paraffin and similar volatile oils substantially
as herein set forth, and also as illustrated.
Dated this 22nd day of August 1891.
J. CLARK JEFFERSON, A.R.S.M., Wh. Sc.,
2, East Parade, Leeds, Agat for Applicant.