Improvements in Extinguisher Mechanism for Lamps.
Year: 1893

page_text: Date of Application, 4th Apr., 1893
Complete Specification Left, 2nd Jan., 1894-Accepted, 3rd Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Extinguisher Mechanism for Lamps.
GEORGE MOSELEY 23 Eden Street Kingston on Thames in the County of
Surrey England Watch and Clock Maker do hereby declare the nature of this
invention to be as follows:-
This invention relates to improved and simplified methods for automatically
extinguishing the flames of flat wick single and duplex lamps, when tilted, dropped
or upset.
Also an improved means for keeping the shutters closed over the wicks when
extinguished by hand. -
The burner consists of the ordinary form of extinguishing flaps & shutter boxes
which latter however are made heavier than usual by attaching heavy pieces of
metal to the sides, forming in reality a part or continuation thereof.
An arm or arms are hinged to the body of the burner, extending inwardly and
passing through or under a stud or piece fitted to the shutter boxes.
Underneath the said arm or arms a suitable spring is placed with the free end
near the hinged joint and pressing upwards. The weighted shutter boxes when in
a vertical position compress, the spring & keep the wicks fully uncovered, but upon
the lamp being tilted, dropped, or overturned the spring is sufficiently relieved of
the gravity of the weighted shutter boxes to thrust them forward & put out the
light.
To effect extinction by hand, the usual form of lever is employed, but with a
notch or recess cut, into which the stud or piece connected to the shutter boxes
falls, as soon as they are raised to the height required for the extinguishing flaps to
close over the wicks. The lever is thus prevented from further travel in either
direction and by the weight of the shutter boxes pressing tightly against the
fulcrum joint, are kept up and locked until released by touching the outward end of
the lever:
Dated this 3rd day April 1893.
COMPLETE SPECIFICATION.
Improvements in Extinguisher Mechanism for Lamps.
I GEORGE MOSELEY of 23 Eden Street Kingston on Thames, 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:
This invention relates to improved and simplified methods for automatically
extinguishing the flames of flat wick, single or duplex lamps, when tilted dropped
or upset, also an improved means for keeping the shutters closed over the wicks
when extinguishing by hand.
The burner consists of the ordinary form of extinguishing flaps and shutter
boxes, which latter however are made heavier than usual by attaching heavy pieces
of metal to their sides, forming in reality a part or continuation of the said shutter
boxes..
An arm or lever is hinged to the body of the burner, extending inwardly and

page_text: passing through or under a cross stud or piece fitted to the shutter boxes; under-
neath the said arm or arms, a suitable spring is placed with the free end near the
hinged joint and pressing upwards.
The weighted shutter boxes when in a vertical position compress the spring and
keep the wicks fully uncovered, but upon the lamp being tilted, dropped, or over-
turned, the spring is sufficiently relieved of the gravity of the weighted shutter
boxes to thrust them forward and put out the light.
To effect extinction by hand, the usual form of lever is employed but with a
notch or recess cut in it, into which the cross stud or piece connected to shutter
boxes falls as soon as they are raised to the height required for the extinguishing
flaps to close over the wicks. The lever is thus prevented from further travel in
either direction and by the weight of the shutter boxes pressing tightly against the
fulcrum joint are kept up and locked until released by touching the outer end of
the lever.
In order to more fully explain this my invention I have appended hereunto an
illustrative sheet of drawings upon which are figures and numbers of reference
similar numbers referring throughout the several views to the same thing or part.
Fig. 1 is a part sectional view of a lamp burner showing more particularly the
side view of the shutter boxes and levers.
Fig. 2, shows an end view of the said shutter boxes &c.
Fig. 3, shows a plan view of my invention.
Fig. 4, shows a sectional view through centre of burner between the wick tubes,
upon line A-B Fig. 2, showing the position of the various parts when the lamp is
in the vertical position (as when in use).
Fig. 5, shows position of parts when lamp is overturned.
Fig. 6, is a similar view to Fig. 4, but showing position of parts when shutter
boxes are raised.
Figs. 7 and 8 are detached front and sectional views on line C-D of the shutter
boxes.
Figs. 9 and 10 are side and plan detailed views of the manipulating lever.
Figs. 11 and 12 are side and plan detailed views of the automatic lever.
13 is the body of the burner. 14, 14 are the wick tubes. 15, 15 are the ordinary
shutter boxes, which are connected together by the cross piece 16, and having
flaps 17, 17. Upon these flaps are extensions 18, 18, which when the said boxes
are slid upwards along the tubes 14, are arrested by the stud 19 carried upon the
fixed pillar 20, and thus the flaps are automatically closed over the wicks as-shown
in Fig. 5.
Upon the front of these shutter boxes I now attach heavy pieces of metal 21,
which, by reason of their compact form and position, offer no impediment to the
necessary currents of air to the flame. Also this form of extending the shutter
boxes to the bottom of the burner obviates the accumulation of dirt upon the wick
tubes near their lower parts, thus ensuring more perfect cleanliness, the shutter
boxes themselves being also better shaped for being wiped and kept clean.
22, is a twin sided lever hinged at 23, upon the body of the burner, and whose
front ends pass and rest beneath the cross piece 16. The twin sides of this lever
are connected by cross bar 24, under which the free end 25 of the spring 26 presses.
The other end 27 of this spring is secured in the bottom of the burner. It is
found to be desirable that the cross bar 24, and free end of the spring 26 should be
near to the fulcrum 23. Its action will now be readily understood:-The weighted
shutter boxes 15, 15, with the extended weights 21, 21, when in the vertical position
(see Figs. 1, 2, 3 & 4) compress the spring 26, and keep the wicks fully uncovered,
but upon the lamp being tilted; dropped or overturned, (see Fig. 5), the spring is
sufficiently relieved of the gravity of the weighted shutter boxes to thrust them
forward and put out the light.
To effect extinction by hand the usual form of lever 28 is used, but having at
its inner end, the notch 29 which when the boxes are raised by hand to their full:

page_text: height the cross piece 16 falls therein, and form a lock the one to the other so that
the boxes are there sustained until with a little force the lever is lowered.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. The combination in extinguishing mechanism for lamps with the wick tubes,
shutter boxes, and their flaps of the extended weights 21, lever or arm 22, with
cross bar 24, and spring 26, all combined and operating in the manner shown and
described.
2. The combination with the shutter boxes 15, 15, and cross piece 16, of the
lever 28, having the notch 29 as shown and described and for the purposes
specified.
Dated this 1st day of January 1894
CHARLES T. POWELL,
Applicant's Agent.