Improvements in Safety Lamps.
Year: 1898

page_text: 1mрrоvещение m sarevy матрь.
I, JOHN DUNSTAN WHITEHEAD, of King's Head Yard, 45, High Street, Borough,
in the County of Surrey, Hop Factor, do hereby declare the nature of this inven-
tion to be as follows;-
This invention relates to movable lamps for burning paraffin and other oils,
and has for its object to ensure that in the event of the lamp being overturned,
or tilted too far on its side, a supply of water contained therein immediately
extinguishes the flame: '
To effect this I arrange inside the lamp, and preferably in the centre thereof a
tube of any preferred section and suitable length, which serves as a container
for water or other fire extinguishing liquid, which can be fed thereto in any con-
venient manner. The oil is contained in the body of the lamp surrounding the
tube which is closed at its lower end and occupies a portion of the lamp beneath
the burner, and at the side of the wick tube, with the top of which it com-
municates by means of slits or holes in such manner that should the lamp bę
overturned the. water comes into contact with the wick. The bulb of the burner
may have holes arranged round its side to allow the water to flow out and come
into contact with the flame direct.
In the case of a lamp having two or more burners the water reservoir is dis-..
posed between 'the wick tubes, or in the most advantageous position. Or two
reservoirs may be arranged one on each side of the wick tube.
Dated this 7th day of January 1898.
WILLIAM J. MUNDEN,
75, Chancery Lane, London, W.C., Agent for the Applicant.
Improvements in Safety Lamps.
I, JOHN DUNSTAN WHITEHEAD, of King's Head Yard, 45, High Street, Borough, '
in the County of Surrey, Hop Factor, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to movable lamps for burning paraffin and other oils,
and has for its object to ensure that in the event of the lamp being overturned,.
or tilted too far on its side, a supply of water or other fluids contained therein
immediately extinguishes the flame.
To effect this I arrange inside the lamp, and preferably in the centre thereof, a
D

page_text: tube of any preferred section and suitable length, which serves as a container
for water or other fire extinguishing liquid which can be fed thereto in any con-
venient manner. The oil is contained in the body of the lamp surrounding the
tube which is closed at its lower end and occupies a portion of the lamp beneath
the burner, and at the side of the wick tube, with the top of which it com-
municates by means of slits or holes in such manner that should the lamp be
overturned the water comes into contact with the wick. The bulb of the burner
may have holes arranged round its side to allow the water to flow out and come
into contact with the flame direct.
In the case of a lamp having two or more burners the water reservoir is dis-
posed between the wick tubes, or in the most advantageous position. Or two
reservoirs may be arranged, one on each side of the wick tube.
Lamps according to my invention may be constructed with slight differences
of detail without departing from the principle involved. In the drawings
accompanying this specification are shewn simple forms of lamps which I pre-
ferably use.
Fig. 1 is an elevation of the upper part of a lamp.
Fig. 2 is a vertical section through the centre of a lamp in which two flat
wicks are employed one on each side of the water reservoir.
is
Fig. 3 is a vertical section through the centre of a lamp in which a circular
wick is employed surrounding the whole or nearly the whole of the water reservoir.
The lamp to which my invention is applied may be of any suitable pattern but
in the drawings it is shewn as applied to a common table lamp, in which the oil
contained in the usual bulb which forms the reservoir. ✗ indicates
the reservoir which contains the oil. Y the gallery, and Z the burner.
To the lower part of the gallery which screws into the upper part
of the lamp standard or oil reservoir is affixed a depending tube A
rectangular in horizontal section. This forms the water reservoir and
is preferably made with a lower part a which telescopes into the upper part A
being thus capable of easy removal for the purpose of refilling. The reservoir A
occupies the central portion of the oil reservoir. X and two flat wicks Bare
disposed along two opposite sides of this reservoir. Passages are formed outside
the upper end of the water tube A through which the wicks B pass upwards to
the point where they are ignited, the lower ends depending into the oil. In
close proximity to each of the inner sides of these wicks are disposed two pas-
sages a the lower ends of which communicate with the water reservoir A; and
the upper open ends being in close proximity to the flame when the lamp is
alight it is obvious that should the lamp be overturned the water will flow out
of the reservoir A through the passages a¹ and coming into direct contact with
the upper ignited portion of the wick will at once extinguish the flame.
In rig. the parts remain practically the same save that a circular wick B
being employed the water passage a¹ is correspondingly circular and concentric
with the wick. The central part a² of the upper end of the water chamber A
may be utilised as an air tube through which air may pass to the interior of the
flame, the air may be introduced to the tube a through a depending tube a³ or
through a side opening not shewn in the drawings. A single or any larger
number of wicks may be employed the reservoirs being modified to suit each
particular case. It being understood that the essential feature of my invention
consists in applying a water reservoir in or near the centre of the oil reservoir
from which water reservoir in the event of the lamp, overturning water will
pass directly to the flame thus securing its immediate extinction.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. A safety lamp in which a water or other fluid reservoir is disposed in or
near the centre of the oil reservoir, in such manner that should the lamp be over-

page_text: turned the water immediately comes into direct contact with the flame, sub-
stantially as shewn and described.
2. In a safety lamp the combination of the lamp body or oil reservoir X, the
burner Z, the water reservoir A centrally disposed therein, the wick or wicks B,
and the passage or passages a¹, substantially as shewn and described.
3. In a safety lamp the combination of the lamp body or oil reservoir X, the
gallery or upper part Y, the burner Z, the water reservoir A centrally disposed
therein, the wick or wicks B, and the passage or passages a¹, substantially as
shewn and described.
4. In a safety lamp the combination of the lamp body or oil reservoir ✗, the
circular burner Z, the water reservoir A centrally disposed therein, the wick B,
the passage a¹, and the air tubes a² and a³, substantially as described and shewn.
5. A safety lamp constructed and operating substantially in the manner
herein before described and shewn.
712 1
+
1000
WILLIAM J. MUNDEN,
75, Chancery Lane, London, W.C., Agent for the Applicant.