Automatic Extinguisher for Lanterns.
Year: 1891

page_text: Date of Application, 19th Feb., 1891
Complete Specification Left, 19th Nov., 1891-Accepted, 19th Dec., 1891
PROVISIONAL SPECIFICATION.
Automatic Extinguisher for Lanterns.
WC NASERWANJI DHANJIBHOY KARANI of Sewree, Bombay, Mechanical
Engineer, and MERWANJEE DHUNJEEBHOY MUGA of Nesbit Road, Bombay,
Gentleman, do hereby declare the nature of this invention to be as follows:-
Our said invention relates to improvements in lanterns provided with an ordinary
lamp designed for burning cocoanut, castor, colza, and the like oils, of the con-
struction commonly used in manufactories and warehouses under circumstances
where it is necessary to use great care in dealing with lights. Such lamps are
usually protected by a casing of glass which in the event of a fall is liable to
break and expose the naked light in a dangerous manner.
The object of our said invention is to provide means for automatically extin-
guishing the flame in the event of the lantern being allowed to fall either from its
hanging place or from the hand of a carrier. Hinged to a convenient part in
the interior of the lantern we provide a flap or extinguisher of suitable shape and
connect the same to sliding rods attached to the handle by which the lantern is
carried. The said handle is above the lantern and the said sliding rods pass
therefrom into the interior of the lantern. On the said sliding rods are spiral
springs so arranged that when the lantern is lifted by the bandle the sliding rods
will be drawn upwards by the handle and the weight of the lantern will compress
and be borne by the said spiral springs. Should the lantern fall the weight thereof
will no longer tend to compress the said spiral springs and their resilience will
cause the sliding rods to be drawn into the interior of the lantern. Since the flap
or extinguisher is connected to the said sliding rods its position with regard to the
flame will be regulated by their position. When the rods are drawn out by the
handle the extinguisher will be lifted clear of the flame but when the rods slide
back into the interior of the lantern the extinguisher will simultaneously be caused
to press against the wick and extinguish the flame.
When it is desired to rest the lantern on its base instead of suspending it the
handle is drawn out and a block is inserted between the top of the lantern and the
handle for preventing the return of the latter or a special detent may be used for
this purpose.
Dated this Eighteenth day of February 1891
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicants.
COMPLETE SPECIFICATION.
Automatic Extinguisher for Lanterns.
We, NASERWANJI DHANJIBHOY KARANI, of Sewree, Bombay, Mechanical
Engineer, and MERWANJEE DHUNJEEBHOY MUGA, of Nesbit Road, Bombay,
Gentleman, 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 :-
Our said, invention relates to improvements in lanterns provided with an ordinary
lamu designed for burning cocoa-nut, castor, colza and the like oils, of the con-

page_text: struction commonly used in manufactories and warehouses under circumstances
where it is necessary to use great, care in dealing with lights. Such lamps are
usually protected by a casing of glass which, in the event, of a fall is liable to break
and expose the naked light in a dangerous manner.
The object of our, said invention is to provide means whereby in the event of the
lantern being allowed to fall either from its hanging place or from the hand of a
carrier the flame will be automatically extinguished.
In order that our said. invention. may be more fully understood we will describe
the same with reference to the accompanying drawings which illustrate different
ways of carrying, into effect our said invention.
Figs. 1, 3 and 5 of the said drawings show a lantern; with the extinguisher
removed from the lamp:
Figs. 2,,4, and 6 show the extinguisher. in-action..
Eig. 24 isa partial sectional plan through A-B,of Eig.,2.
In all the figures the same,letters refer to the same parts:
Cissthe casing of a lantern, constructed. in accordance. with our invention: D is
the top thereof., is the handle; and. E is the lamp.
According to one method. of. carrying out our. saidt invention, we provide a flap
or extinguisher a Figs. 1, 2, 3 and. 4, which may, be: a flat or. dished plate or of
other, suitable shape.. This, flap on extinguisher is hinged, to: a convenienti part
of the interior. of the lanterntand is connected either directly as in. Figs.. 1 and 2,
or by a link. c. and, lugd of Figs..3.and 4,, to the sliding: rods: e, attached, to, the
handle by which the lantern is carried.. The, said, handle is: above, the
lantern andi the sliding rods e pass therefrom: into. the, interior of the lantern.
On the sliding, rods are spiral, springs, g, so, arranged. that when the lantern is
lifted by the handle the sliding rods e. will be:drawn upwards-by, the handle and
the weight of the lantern will, compress and be borne, by the, said, spiral springs.
Should the lanterm fall from, its hanging, place or from, the handt of a carrier, the
weight thereof. will no longer tend to compress, the said spiral springs-g and their.
resilience will. cause, the sliding, rods e to be drawn into the interior of the lantern.
Since the flap or extinguisher a. is connected to the said sliding rods-e its position
with regard to the flame . will be regulated: by their position and when the sliding
rods are drawn into the interior of the lantern: by the. extension. of the spiral
springs the, flap, or extinguisher will. be. caused, to, press against. the wick and
extinguish the flame.
According to another method of carrying out our said invention as illustrated
in. Figs. 5 and 6 the extinguisher. is attached to the underside of the top of the
lantern. In this construction, the, upright, rods, e ares fixed and guiding, tubes e
secured to the lid of the lantern slide thereon. The springs are then arranged,
between the sliding tubes and the top- of the. lantern.. In this arrangement
should the lantern fall from its hanging place or from the land of a carrier
the resilienco: off the, spiral springs will cause the top D' to descend until the
extinguislier::is on the undersides thereof covers: the wick and extinguishes the
flame.
We may provide detents or catches which take into notches in the sliding parts,
for the purpose of causing the extinguisher to remain clear of the flame if desired
when the lantern is set down, or in the types shown in Figs. 1 to 4 a block may be
inserted between the handle and the top of the lantern for effecting the same
purpose:
Having now particularly described and' ascertained' tlie nature of four said inven-
tion and in what manner the same; is: to: be performed' we declare that what we
claim is
1. In a lantern the use of an extinguisher operated automatically by the resilience
of spiral springs when the weight of the lantern ceases to be Harne by the handle

page_text: 2. A lantern having a loose top D' with an extinguisher on the underside thereof
sliding on rods provided with spiral springs for the purpose of automatically
extinguishing the flame substantially as hereinbefore described and shown.
Dated this 17th day of November 1891.
EDWARD TURNER WHITELOW,
70, Deansgate, Manchester, Agent for the Applicants.