Improvements in Oil Lamps.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Oil Lamps.
I, THOMAS FLOOD, of 6, Aden Street, Ardwick, Manchester, in the County of
Lancaster, Mechanic, do hereby declare the nature of this invention to be as
follows:-
It is more specially applicable to circular wick lamps and has for its object
the instantaneous extinction of the lamp when upset and the consequent prevention
of fire or explosion.
I accomplish this as follows:-
I form the oil chamber so that it is hermetically sealed when in use, air being
supplied to replace the waste of oil by means of a small tube whose external
orifice is above the oil level of the chamber and which passes down to the bottom
of the chamber and up again to the top inside the chamber so as to prevent any
leakage of oil if the lamp is overturned.
Around the wick chamber I place a collar of thin metal which is raised to the
top by means of a suitable spring and surrounds the wick and extinguishes it.
This collar is attached to a rocking lever, attached to the side of the lamp,
which is held down by means of a pivoted weighted lever, which hangs by the
side of the lamp and in the event of its overturn falls to one side and so releases
the rocking lever and allows the collar to rise and extinguish the lamp.
Dated this 24th day of February 1899.
JOHN HENRY TOPHAM.
7, South Corridor, Royal Exchange, Manchester,
Agent to Applicant.
Improvements in Oil Lamps.
I, THOMAS FLOOD, of 6, Aden Street, Ardwick, Manchester, in the County of
Lancaster, Mechanic, 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:-
It is more specially applicable to circular wick lamps (but is also applicable to
flat wick lamps,) and has for its object the instantaneous extinction of the lamp
when upset and the consequent prevention of fire or explosion.
I accomplish this as follows:-
I form the oil chamber so that it is hermetically sealed when in use, air being
supplied to replace the waste of oil by means of a small tube whose external

page_text: orifice is above the oil level in the chamber and which passes down to the bottom
of the chamber and up again to the top inside the chamber so as to prevent any
leakage of oil if the lamp is overturned.
Around the wick chamber I place a collar of thin metal which is raised to the
top by means of a suitable spring and surrounds the wick and extinguishes it.
This collar is attached to a rocking lever attached to the side of the lamp,
which is held down by means of a pivoted weighted lever, which hangs by the
side of the lamp and in the event of its overturn falls to one side and so releases
the rocking lever and allows the collar to rise and extinguish the lamp.
Referring to the drawings sent herewith:-
Fig. 1 shows a side view of the oil and wick chambers of a lamp, all other
parts being removed for simplicity, with my improved apparatus attached, a indi-
cates the oil chamber, in which is air tube b having its external opening at c
above the oil level of the chamber, and which after descending to the bottom of
the oil chamber a rises again to above the oil level, at d, thus preventing the
escape of any oil if the lamp is overturned. e indicates the wick chamber, around
which is placed the thin metal collar and extinguisher f which slides up and down
on the outside of the wick chamber e and is raised above its upper edge by means
of spring g which normally retains it in position for extinguishing the lamp.
Attached to this collar fis rocking lever h which is pivoted at i to a suitable
frame or plate which is suitably attached to wick chamber e and oil chamber a
and serves to support the whole apparatus.
Pivoted in frame or plate k is weighted lever the projection 2 upon which
engages with outer end of rocking lever h thus retaining collar f in position
shown, should however the lamp be tilted to any great or dangerous angle the
weighted-lever--swings-to-one side,-releasing the outer end of rocking lever and
thus allowing the collar f to rise to its full height and so extinguish the lamp
The apparatus is also useful for extinguishing the lamp in the ordinary manner,
all that is necessary being to push the weighted lever well to one side, when
the lamp automatically extinguishes itself.
The apparatus is readjusted by raising outer end of rocking lever h by means
of handle m and allowing projection 2 on weighted lever to swing under it.
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
1 claim is:-
1st. The combined apparatus substantially as described and shown herein before
and in the accompanying drawings for the purpose set forth.
2nd. In an automatic apparatus for extinguishing oil lamps, the combination
of collar f, spring g, rocking lever h, and weighted lever with wick chamber e
substantially as described and shown.
1 1
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1000
JOHN HENRY TOPHAM.
7, South Corridor, Royal Exchange, Manchester,
Agent to Applicant.