Improvements in Extinguishers for Lamps.
Year: 1890

page_text: Date of Application, 23rd May, 1890-Accepted, 12th July, 1890
COMPLETE SPECIFICATION.
Improvements in Extinguishers for Lamps.
A communication from abroad by DÉMETRE MURGULETZ, a subject of the King of
Roumania, residing at Brussels, in the Kingdom of Belgium.
I, WILLIAM LLOYD WISE of No. 46 Lincoln's Inn Fields, in the County of London,
Consulting Engineer and Patent Agent, 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:-
The invention relates to an extinguishing device suitable for lamps burning inflam-
mable oils, the object of it being to extinguish the lamp in the case of an accidental
fall, whether caused by upsetting as in the case of a table lamp, or by its becoming
detached from its chain or hook as in the case of a hanging lamp. The apparatus is
adapted to existing lamps with but a slight alteration of the burner. To clearly
explain the nature of my invention reference is made to the accompanying drawings
in which:
Fig. 1 is a sectional elevation of the weight arrangement by which the extinguishing
device is operated.
and
Fig. 2 is a plan of same.
Fig. 3 is a sectional elevation of a modified arrangement, and
Fig. 4 is a plan of same.
Figure 5 is a sectional elevation of a further modification and
Figure 6 is a plan of same.
Figure 7 is an elevation of a flat wick tube and an extinguishing device.
Figure 8 is a side sectional elevation of same, and
Figure 9 is a plan.
Figure 10 is a sectional elevation of a round wick tube and extinguishing device.
Figure 11 is a sectional elevation of same and
Figure 12 is a plan.
Figure 13 is an elevation of a flat wick tube with another form of extinguisher
Figure 14 is a side view of same.
Figure 15 shews a duplex burner with inside extinguishing devices and
Figure 16 a similar burner with the devices placed outside same.
Figure 17 is an elevation of a flat wick tube with another form of extinguisher
and
and
Figure 18 is a side view of same.
Figure 19 is an elevation of a flat wick tube with another form of extinguisher.
Figure 20 is a side view of same with the extinguisher off and
Figure 21 is a similar view with the extinguisher on.
Figure 22 is an elevation of a flat wick tube with a further form of extinguisher
Figure 23 is a side elevation of same.
Figure 24 is an elevation of a round wick tube with another form of extinguisher.
Figure 25 is a sectional elevation of same and
Figure 26 is a plan.
Figures 27 28 and 29 are sectional elevations of round wick tubes with further
forms of extinguishing devices.
The device consists of a cylindrical casing A as shewn in Figure 1 on which is
screwed a cover C projecting from which is a small tube t which may be threaded at
ts-upper end for attachment to the burner portion of the lamp or may be secured

page_text: thereto in some other way. The casing A has a tube B secured to the bottom of
same as shewn which tube serves as a guide to a weight loosely fitting in the
casing. This weight carries a spindle a preferably screwed into a bushing b in
the head of same, said spindle passing through into the tube B of the casing
which serves to guide it. The weight has a central hole in same bored or formed
of two different diameters O, o, as shewn so that a shoulder is left between same
which serves to keep in place a coiled spring which has been dropped over the
tube B and is retained in the aperture O. Under normal conditions the spring
is compressed by the weight P as shewn, but as soon as the lamp is much inclined
as in the act of falling over the inertia of the weight will be overcome by the
spring, and the former being raised, the spindle a connected thereto will be given
a movement which is utilized as hereafter explained to operate one of the forms of
extinguishing devices shown. In the case of a vertical fall of a suspended lamp
the spring will similarly overcome the inertia of the weight. As soon as the lamp
is replaced in its vertical position, the weight falls and the extinguisher is removed.
In some cases as shewn in Figures 3 and 4 the weight P may be provided with
two spindles aa which may operate one or more extinguishing devices a central
rod a passing into the tube B, being employed for steadying the weight. When
the lamp has a central tube running through same, the arrangement shewn in
Figures 5 and 6 may be employed where the casing A is annular and surrounds
said central tube. It is provided with a cap C₁ and tubes t¹ t¹ which are attached
to the burner portion of the lamp. The weight P¹ is annular in shape and fits
loosely in the casing; it carries the spindles a a. At its bottom it has guiding
pins or rods a¹ a' which pass into tubes B¹ B' and rests upon and compresses a
coiled spring r¹. The spindles a attached to the extinguishing device may be bent
or forked or of any form, in case the arrangement of the lamp will not permit
them to be straight. In place of using a weight in the interior of which is placed
the spring, a plain weight may be employed, which will simply rest on a coiled
spring placed in the bottom of the case, somewhat as shewn in Figure 5 or a plate
spring may be employed the weight of course being suitably guided.
The body of the lamp can also be made to serve as the casing to hold the weight,
and its opposing spring. Said weight in this case will have a number of spindles
adapted in shape to the form of the lamp and passing to the extinguishing devices.
The extinguishing device may assume different shapes. In Figures 7 8 and 9 it
consists of a casing to sliding on the wick tubes, to which casing the spindle a of the
weight P is attached. The casing w has preferably a flared mouth as shewn, so that
the deposit of carbon which forms upon the wick shall not check its ascent when it is
forced up by the spindle a. Its action is to smother the flame. The device shewn in
Figures 10 11 and 12 applied to a round wick tube acts in a similar way. In
Figures 13 and 14 the extinguisher consists of a bent plate p hinged to the wick tube
at c.
The spindle a has its end passed through a slot e in the plate p, and is provided
with a head d. As it is forced up it closes in the plate p the top of which closes over
the wick. In Figure 15 a duplex burner is shewn. The spindle a has a forked end
terminating in two heads d d, which pass through slots ee in the extinguishing
plates p p. The operation is similar to that of Figures 13 and 14. In Figure 16 the
arrangement and operation is also similar, the extinguishing device being however
placed outside of the duplex burner. In Figures 17 and 18 the end of the plate p is
cut away into a stem g down to the point c where it is hinged to the wick tubes and
the spindle a terminates in a ring through which the stem g is passed, so that the
plate p is closed and opened by the sliding of the ring up and down the stem.:
In Figures 19, 20 and 21 the bent plate p is of different shape, and is binged to the
wick tube at c. The spindle a operates it through the medium of a double link jį, to
which it is pivotted at i.
In Figures 22 and 23, the extinguisher plate p is connected to the spindle a
through the medium of a single link piece k, which is pivotted to the plate at m, and
to the spindle at 1, said spindle being passed through a bracket n affixed to the wick

page_text: tube, which supports and guides it. In Figures 24, 25 and 26, the extinguisher is
formed of bent plates p hinged to the outside of the wick tube. Each of these plates
is a segment of a circle. In their normal position they are open as shewn, but when
brought together by the upward movement of the collar y to which the spindles a a
are attached they close in and completely cover the wick.
In Figure 27 the extinguisher consists of a disc z carried by a rod s having a rack
on same which engages with a pinion g, the latter also engaging with a rack cut on
the spindle a. This disc z acts as a deflector and spreads the flame when the lamp is
alight, and when brought down on the wick by the action of the spindle a extinguishes
it. In Figure 28 the rod of disc z is carried by an arrangement of pivotted levers on
the "lazy tong" principle, the fixed point being at u on stationary rod. The other
end of the "lazy tong" is pivotally connected at with the spindle a, so that the
motion of the said spindle a may open and close same, and so move up and down the
disc z.
In Figure 29 a somewhat similar arrangement to Figures 10 11 and 12 is
shown, with the exception of a casing inside of the wick tube, in addition to the
outer casing w, each of these being connected by a spindle a as shewn, so that they
may be raised up into contact with the disc z which in this case is fixed and so
extinguish the flame.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
1. A lamp extinguishing device comprising a weight capable of a rising and falling
movement a counteracting spring and means for attaching said weight to an
extinguisher substantially as described.
2. A lamp extinguishing device consisting of a weight, capable of a rising and
falling movement in a casing fixed to the burner, means for guiding the weight in its
movement a counteracting spring and a spindle or spindles connected to said weight,
and to an extinguishing cap or device, substantially as described.
3. A lamp extinguishing device consisting of an annular casing adapted to
surround the central tube of a lamp and attached to the burner portion, an annular
weight capable of a rising and falling movement in same, a counteracting spring means
for guiding said weight, and spindles attached to an extinguishing cap or device
substantially as described.
4. A lamp extinguishing device consisting of a casing attached to the burner a
weight sliding therein, a counteracting spring and a spindle or spindles attached to
the weight and to an extinguisher casing w sliding on the wick tube substantially as
described.
5. A lamp extinguishing device consisting of a casing attached to the burner, a
weight sliding therein, a counteracting spring and a spindle attached to the weight,
and to a hinged plate p adapted to extinguish the flame, substantially as described.
6. A lamp extinguishing device consisting of a casing attached to the burner, a
weight sliding therein, a counteracting spring and spindles attached to said weight
and to a collar y adapted to close in over a circular wick a number of plates p each
formed as a segment of a circle substantially as described.
7. A lamp extinguishing device consisting of a casing attached to the burner a
weight sliding therein, a counteracting spring and a spindle attached to said weight
and having a rack on the upper end of same which engages with a pinion in turn
engaging with a rack on a rod connected to a disc z which forms a flame deflector and
also acts as the extinguisher, substantially as described.
8. A lamp extinguishing device consisting of a casing attached to the burner a
weight sliding therein, a counteracting spring and a spindle attached to said weight
and to a "lazy tong" arrangement, carrying a disc forming a flame deflector, and
acting also as the extinguisher, substantially as described.
9. A lamp extinguishing device consisting of a casing attached to the burner, a

page_text: weight sliding therein a counteracting spring and two spindles attached to said weight
and to outer and inner casings respectively, said cases sliding on a round wick tube
and adapted when in contact with disc to extinguish the flame, substantially as
described.
W. LLOYD WISE,
Per F. J. Brougham.