Improvements in or connected with Lamps for Burning Hydro Carbon Oil or Spirit.
Year: 1899

page_text: Date of Application, 1st Dec., 1899
Complete Specification Left, 1st Oct., 1900-Accepted, 1st Dec., 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Lamps for Burning Hydro Carbon
Oil or Spirit.
We, WILLIAM NOTLEY, of 9, Goodrich Road, Lordship Lane, Dulwich, in the
County of Surrey, Artist, and CHARLES EDWIN FROST, of 135, High Street,
Lewisham, in the County of Kent, Builder, do hereby declare, the nature of
this invention to be as follows:-
The invention relates to improvements in or connected with lamps for burn-
ing hydro-carbon oil or spirit.
It is well known that an ordinary petroleum lamp is a source of considerable
danger inasmuch as the capsizing thereof commonly results in serious fires
and loss of life due to explosion, the liberation of a considerable volume of free
oil and other causes and although many devices have been suggested for the
prevention of accidents of this kind such as the employment of automatic ex-
tinguishers designed to come into action upon the lamp assuming a given angle
and appliances for trapping the oil and preventing the same flowing out of
the wick tube, at the present time no practical and effective remedy is in use.
Now the object of the present invention is to obtain a simple inexpensive
and effective means of feeding the oil to the wick in the volume necessary but
only as it is required to support combustion and at the same time completely
trapping the oil in the reservoir and preventing the possibility of the flame
flashing back thereto notwithstanding that the lamp may be overturned.
In carrying the invention into effect the collar of the reservoir or burner
fitting has hermetically fixed thereto a depending tube of any suitable section
which descends nearly to the. bottom of the reservoir and is closed at its lower
end with the exception that the centre thereof is pierced with minute perfora-
tions or formed with an aperture therein covered with one or more thicknesses
of wire gauze.
Within the depending tube and arranged centrally thereof is a depending
perforate tubular partition preferably constructed of fine wire gauze and with a
closed but perforate bottom and of a section suitable to the shape of the wick
and this perforate partition is so proportioned that it terminates a short dis-
tance from the bottom of the depending tube and the space within this tubular
perforate partition constitutes a chamber or well to receive the depending wick
which more or less closely fits the same.
The space between the depending tube and the perforate tubular partition
around and beneath the same is packed with a composition consisting of a vege-
table absorbent material, preferably common bran, and a finely divided mineral
material, preferably common sand of a fine description, and these materials are
previously combined in suitable proportions and intimately mixed.
The oil in the reservoir filtrates through the perforations in the bottom of
the depending tube and saturates the packing composition surrounding the

page_text: perforate tubular partition and the saturated composition which is at least co-
extensive with the wick in turn gives up the oil to the latter in sufficient
volume to vigorously support the Hame.
By these means in the event of the lamp being overturned little or no free
oil will escape at the wick tube as a rush of oil is effectually prevented by the
packing material through which the oil from the reservoir is first required to
filtrate and by the same means the flashing back of the flame to the body
of oil and vapour in the reservoir is also prevented whilst by reason of the angle
assumed by the lamp in its capsized position and the corresponding angle of the
depending tube the oil will be trapped by the latter and the flame will gradually
die out for want of a proper supply of fuel.
The flame of a lamp constructed in the manner above described may be ex-
tinguished by blowing directly down the chimney without danger of explosion
by firing the vapour within the reservoir.
'
If desired a simple form of automatic extinguisher may be employed to
immediately extinguish the flame upon the lamp overturning and such for
example as that kind which consists of two leaves or wings adapted to tumble
over the wick by gravity.
D1
1-1 1
1000
WHITE & WOODINGTON,
Birkbeck Bank Chambers, London,
Agents.
Improvements in or connected with Lamps for Burning Hydro Carbon
Oil or Spirit.
We, WILLIAM NOTLEY, of 9, Goodrich Road, Lordship Lane, Dulwich, in the
County of Surrey, Artist, and CHARLES EDWIN FROST, of 135, High Street,
Lewisham, in the County of Kent, Builder, 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:-
The invention relates to improvements in or connected with lamps for burn-
ing hydro-carbon oil or spirit.
It is well known that an ordinary petroleum lamp is a source of considerable
danger inasmuch as the capsizing thereof commonly results in serious fires
and loss of life due to explosion, the liberation of a considerable volume of free
oil and other causes and although many devices have been suggested for the
prevention of accidents of this kind such as the employment of automatic ex-
tinguishers designed to come into action upon the lamp assuming a given angle
and appliances for trapping the oil and preventing the same flowing out of
the wick tube, at the present time no practical and effective remedy is in use.
Now the object of the present invention is to obtain a simple inexpensive
and effective means of feeding the oil to the wick in the volume necessary but
only as it is required to support combustion and at the same time completely
trapping the oil in the reservoir and preventing the possibility of the flame
flashing back thereto notwithstanding that the lamp may be overturned.
In carrying the invention into effect the collar of the reservoir or burner
fitting has hermetically fixed thereto a depending tube of any suitable section
which descends nearly to the bottom of the reservoir and is closed at its lower
end with the exception that the centre thereof is pierced with minute perfora-

page_text: tions or formed with an aperture therein covered with one or more thicknesses
of wire gauze.
Within the depending tube and arranged centrally thereof is a depending
perforate tubular partition preferably constructed of fine wire gauze and with a
closed but perforate bottoni and of a section suitable to the shape of the wick
and this perforate partition is so proportioned that it terminates a short dis-
tance from the bottom of the depending tube and the space within this tubular
perforate partition constitutes a chamber or well to receive the depending wick
which more or less closely fits the same.
The space between the depending tube and the perforate tubular partition
around and beneath the same is packed with a composition constituting of a vege-
table absorbent material, preferably common bran, and a finely divided mineral
material, preferably common sand of a fine description, and these materials are
previously combined in suitable proportions and intimately mixed.
The oil in the reservoir filtrates through the perforations in the bottom of
the depending tube and saturates the packing composition surrounding the
perforate tubular partition and the saturated composition which is at least co-
extensive with the wick in turn gives up the oil to the latter in sufficient
volume to vigorously support the flame.
If desired a simple form of automatic extinguisher may be employed to
immediately extinguish the flame upon the lamp overturning and such for
example as that kind which consists of two leaves or wings adapted to tumble
over the wick by gravity.
And in order that the said invention may be more clearly understood and
readily carried into effect we will proceed aided by the accompanying drawings
more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical section partly. in elevation of a flat wick hydro carbon
oil lamp constructed according to the present invention.
•
Figure 2 is a vertical section thereof taken at right angles to Figure 1.
Figure 3 is a horizontal section thereof taken on the line 1-1 of Figure 1 and
Figure 4 is a similar view to Figure 3 illustrating the application of the
invention to a round wick burner.
6
In the several figures like parts are indicated by similar letters of reference.
a represents the reservoir or container a¹ represents the collar of the reservoir
or burner fitting and b represents the burner.
Hermetically fixed with the collar a¹ by soldering or otherwise is a depending
tube of any suitable section which descends nearly to the bottom of the
reservoir a and is closed at its lower end with the exception that the centre
thereof is formed with an aperture c therein covered with a thickness or there
might be several thicknesses of perforated metal or wire gauze c² or the central
part of the bottom of the depending tube e might itself be pierced with minute
perforations.
Within the depending tube cand arranged centrally thereof is a depending
perforate tubular partition which is fixed to the underside of the burner b in
continuation of the wick tube and this tubular partition 2 which is prefer-
ably constructed of fine wire gauze and formed with a closed but perforate
bottom is of a section suitable to the shape of the wick 63 and is so proportioned
that it terminates a short distance from the bottom of the depending tube c and
the space within said tubular partition 62 constitutes a chamber or well to
receive the depending wick which more or less closely fits the same.
The space between the depending tube c and the perforate tubular partition b
around and beneath the same is packed with a composition & consisting of a
vegetable absorbent material preferably common bran, and a finely divided
mineral material preferably common sand of a fine description and these materials
are previously combined in or in about equal proportions and intimately mixed.

page_text: Oil is filled into the reservoir a in the usual way and filtrates through the
perforations of the gauze 2 at the bottom of the depending tube c and saturates
the packing composition d surrounding the perforate tubular partition 2 and
The saturated composition d which is at least coextensive with the wick 3 in turn
gives up the oil to the latter in sufficient volume to vigorously support the flame.
By these means in the event of the lamp being overturned little or no free
oil will escape at the wick tube as a rush of oil is effectually prevented by
the packing material through which the oil from the reservoir is first
required to filtrate and by the same means aided by the tubular partition 2 the
flashing back of the flame to the body of oil and possibly vapour in the reservoir a
is also prevented whilst by reason of the angle assumed by the lamp in its
capsized position and the corresponding angle of the depending tube the oil
will be trapped by the latter and the flame will gradually die out for want of a
proper supply of fuel.
The flame of a lamp constructed in the manner above described may be extin-
guished by blowing directly down the chimney without danger of explosion by
firing the vapour within the reservoir.
If desired a simple form of automatic extinguisher may be employed to imme-
diately extinguish the flame on the lamp overturning and such for example as
the well known device shown at Figure 2 and which consists of two counter-
weighted leaves or wings 4 mounted upon axes of motion and adapted to
tumble over the wick by gravity.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. A hydro-carbon oil lamp comprising a reservoir or container, a burner, a
depending tube extending nearly to the bottom of the reservoir and provided
with a collection of minute perforations centrally of its lower end, a depending
perforate tubular partition preferably formed of wire gauze and with a closed
lower end arranged in continuation of the wick tube and designed to receive the
wick and a packing or filling of combined vegetable and mineral material such
for example as bran and sand combined in suitable proportions filled into the
depending tube around and beneath the tubular partition substantially as herein
shown and described and for the purpose stated.
2. A hydro-carbon oil lamp having a wall of combined vegetable and mineral
material intervening between the oil supply and the wick substantially as herein
shown and for the purpose stated.
1000
WHITE & WOODINGTON,
Birkbeck Bank Chambers, Southampton Buildings, London,
Agents.