Improvements in the Extinguishing Mechanism for Lamps.
Year: 1890

page_text: Date of Application, 8th Mar., 1890
Complete Specification Left. 22nd Apr. 1890-Accepted, 24th May, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Extinguishing Mechanism for Lamps.
I, JOSEPH HINKS, and JAMES HINKS AND SON, Limited, of Great Hampton
Street, Birmingham, in the county of Warwick, Manufacturers, do hereby declare
the nature of this invention to be as follows:-
This invention relates to the improvements hereinafter described in extinguishing
mechanism for lamps, which said improvements are parily based upon an invention
for "Improvements in or connected with extinguisher mechanism for lamps." for
which letters patents were granted to William Snelgrove, bearing date March 5th,
1887, and numbered 3414; and also upon an invention for "Improvements in or
connected with extinguisher mechanism for lamps," for which letters patents were
granted to Joseph Hinks, of the firm of James Hinks and Son Limited, bearing date
January 18th, 1888, and numbered 808; and further upon an invention for
Improvements in or connected with extinguisher mechanism for lamps" for which
lotters patents have been applied for by Harry Dain Hinks, on behalf of James Hinks
and Son Limited, bearing date January 27th, 1890, and numbered 1397; all three
of which are the property of the said firin of James Hinks and Son Limited.
The said patented invention No. 3414, of 1887, consists essentially in the employ-
ment of a hanging weight, so arranged with respect to a ring terminating a lever,
that on the inclination or tilting of the lamp beyond a certain limit, the weight by
reason of its upper inclined surface strikes or presses against the inside of the ring,
thereby raising the said lever, and disengaging a catch by which the extinguishers
of the lamp had been held down. The released extinguishers are raised by a spring
and the lamp extinguished.
Thus on the upsetting of the lighted lamp the flame is extinguished as soon as the
lamp has acquired an inclination of only a few degrees from the perpendicular, and
the ignition of the contents of the lamp if spilled is prevented.
The said patented invention No. 808, of 1888, consists essentially in means
employed for the purpose of obviating the use of springs for closing the shutters
when raised, and of the arrangement of levers used therein, and also of modifications
of the ring, hood or cover embracing or encircling the actuating pendent weight.
That part of the said invention numbered 1397, of 1890, to which reference is
made, consists essentially in the employment of a rocking bar lever, for raising the
extinguishers, by which the ordinary joint, and joint pin, for the lever, and any
interference with the ordinary perforations of the body, are each dispensed with.
In constructing the extinguisher mecbanism according to this our present inven-
tion, our object, primarily is, to provide that the hanging shaped weight, shall be
suspended from the outer end of the rocking bar lever; or, in some cases, we may
use this part of our invention with an ordinary constructed pull down lever, that is,
suspend it to a lever having a joint, joint pin &c., the outer end of which is pressed
down in order to raise the extinguishers. In combination with this hanging weight,
is a fixed arm, terminating in a ring, through which the upper part of the stem &c.
of the weight, passes, for attachment to the underside of the rocking bar, or the
lever.
A trip action similar to that described in specification No. 808, of 1888, or other
similar suitable action, is used.
The inner end of the rocking bar engages with the vertical slide or its equivalent,
which carries the shutter boxes. Beneath the outer end of this rocking bar, and
extending outwards from the body, is a fixed arm, which at its outer end is formed
into a ring.
The pendent weight is now formed of a size and shape to suit the said ring, its

page_text: upper surface being curved, tapered, or otherwise shaped, so that upon assuming
an approximation to an horizontal position it is drawn away from, or through the
said ring.
The upper part or tapered stem of the weight is now passed through the ring,
and suitably loosely connected to the end of the rocking bar.
The combined weight of the pendant, and the outer end of the rocking bar (or
the lever) is somewhat less than the combined weight of the inner end of the bar,
slide, and extinguishers &c., so that its tendency is always, to keep the shutters
down, and the wicks free, but at the same time requiring but little exertion on
the part of the pendant to raise them, in order to put out the light.
The outer end of the rocking bar (or the lever) is prepared so that it may
conveniently receive a downward pressure from the finger, in order to put out the
light at will, independent of the weight.
Thus, upon the tilting of the lamp to an appreciable extent, the pendent weight
slides through the ring, and in so doing pulls down the rocking bar, or the lever,
and puts out the flame."
Dated this 7th day of March 1890
CHARLES T. POWELL,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in the Extinguishing Mechanism for Lamps.
We, JOSEPH HINKS, and JAMES HINKS AND SON Limited, of Great Hampton Street,
Birmingham, in the County of Warwick, Manufacturers 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 :-
4
This invention relates to the improvements hereinafter described in extinguishing
mechanism for lamps, which said improvements are partly based upon an invention
for Improvements in or connected with extinguisher mechanism for lamps," for
which letters patents were granted to William Snelgrove, bearing date March 5th,
1887, and numbered 3414; and also upon an invention for "Improvements in or
connected with extinguisher mechanism for lamps," for which letters patents were
granted to Joseph Hinks, of the firm of James Hinks and Son Limited, bearing date
January 18th 1888, and numbered 808; and further upon an invention for
Improvements in or connected with extinguisher mechanism for lamps," for which
letters patents have been applied for by Harry Dain Hinks, and James Hinks and
Son Limited, hearing date January 27th, 1890, and numbered 1397; all three of
which are the property of the said firm of James Hinks and Son Limited.
The said patented invention No. 3414 of 1887, consists essentially in the employ-
ment of a hanging weight, so arranged with respect to a ring terminating a lever,
that on the inclination or tilting of the lamp beyond a certain limit, the weight, by
reason of its upper inclined surface, strikes or presses against the inside of the ring,
thereby raising the said lever, and disengaging a catch by which the extinguishers of
the lamp had been held down.
The released extinguishers are raised by a spring and the lamp extinguished.
Thus on the upsetting of the lighted lamp, the flame is extinguished as soon as the
lamp has acquired an inclination of only a few degrees from the perpendicular, and
the ignition of the contents of the lamp if spilled is prevented.
The said patented invention No. 808, of 1888, consists essentially in means
employed for the purpose of obviating the use of springs for closing the shutters
when raised, and of the arrangement of levers used therein, and also of modifications
of the ring; hood or cover embracing or encircling the actuating pendant weight.
That part of the said invention numbered 1397 of 1890, to which reference is made,
consists essentially in the employment of a rocking bar lever, for raising the

page_text: extinguishers, by which the ordinary joint, and joint pin, for the lever, and any
interference with the ordinary perforations of the body, are each dispensed with.
In constructing the extinguisher mechanism according to this our present invention,
the objects of our improvements are, first, to provide that the automatically acting
pendant weight, shall be suspended from the operating lever, to which latter it also
gives motion; second, to provide a fixed ring, whereon the gravitating action of the
the pendant weight is made to act, in order to pull down the operating lever; and
third, to provide upon the arm carrying the gravitation ring, a fulcrum joint for
carrying the operating lever.
A trip action similar to that described in specification No. 808 of 1888, or other
similar suitable action is used.
We attain these objects by the mechanisın illustrated in the accompanying
drawings, in which :-
Fig. 1, is a vertical section of the entire lanp burner, shewing the extinguishing
mechanism; Fig. 2 a top view of the burner, as it appears after the removal of the
dome; Fig. 3 a vertical section of the burner when overturned or upset; Figs. 4 & 5
detailed views of the operating lever; and Figs. 6, 7, & 8, are detailed side, front,
and top views of the arm, ring, and lever fulcrum joint. Fig. 9 is a view of the
plate, as cut out to form the arm, ring, and fulcrum joint before being bent into
shape.
Similar letters refer to similar parts throughout the several views.
a, a, are the wick tubes upon which slide the shutter boxes b, b, and shutters or
flaps c, c.
These shutter boxes b, b, are connected to each other by the cross bar d,
the lower part of which is formed into a leg e, which slides in a guideway formed
in the lower part of the burner. In this leg at f, is a hole, into which the inner end
of the lever g, enters and engages. The lever g, is carried upon a fulcrum joint formed
at h. This fulerum joint is formed as follows:-A piece of metal i, (Fig. 9) is
stamped out, having the holes h (Fig. 9) pierced therein, also having the ring j and
attachment part k, with holes for rivets formed in the same piece. This piece i, is
then bent and shaped as shown (Figs. 1, 3, 6, 7, & 8) and rivetted to the burner body,
the fore part of the lever g, passing through the hole 7. This method of carrying the
lever obviates all interference with the perforations of the body of the burner. To
the outer end of the lever g, is suspended the pendant weight m, whose surface at n,
is curved in shape, so that it may readily slide upon the inner surface of the ring j,
when thrown out of the perpendicular. The weight of the pendant m, is a little less
than sufficient to pull down the lever g, while the lamp is in its normal vertical
position.
Upon the lower part of the flaps c, c, are provided arms o, o, which, when the
shutter boxes are raised a certain height, come in contact with a stop piece p, which
arrests their progress, but by reason of the shutter boxes themselves being carried a
little farther forward, the flaps c, c, thereon, are turned over the wicks and extinguish
the flames.
Thus the action of this our invention is as follows:-Upon the lamp being upset or
overturned, the pendant m, changes its position relative to the lever g, and acts as a
weighted lever, its preponderating weight upon the one side of the ring j, pulling it
therethrough and with it the lever g, thus putting out the light. By reason of the
ring j, being circular, it matters not in which direction the lamp is overturned. To
extinguish at will it is simply necessary to pull down the pendant m, direct, or to push
it to one side.
We are aware that prior to this our invention, extinguishing mechanism for lamps
has been made, in which the flaps or shutters have hoen tripped or turned over when
reaching the top of the wick tubes, similar to that shown and described; and also
that a pendant weight has been used to effect the automatic extinguishing of lamps,
as described in this our specification, and therefore we do not claim these parts in
combination broadly, and have only described the flap trip action in order to explain
this our invention, but :

page_text: I
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner. the sanie is to be performed, we declare that what we
claim is
1st. In extinguishing mechanism for lamps, the combination of an operating lever,
having a pendant weight m, attached thereto, with a fixed annular ring 3, substantially
as set forth and for the purpose specified.
"2nd: The combination in extinguishing mechanism for lamps, of the burner body,
with the fixed arm or bracket i, having the fulcrum joint, formed thereon, sub-
stantially as described:
3rd: The combination in extinguishing mechanism for lamps, of a burner, having a
pendant m, with the fixed bracket i, having the ring j, substantially as shown and for
the purposes specified.
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