Improvements in or connected with extinguisher mechanism for lamps
Year: 1888

page_text: Date of Application, 18th Jan., 1888
Complete Left, 31st May, 1888
Complete Accepted, 6th July, 1888
I JOSEPH HINKS of the firm of James Hinks and Son Limited of Great Hampton
Street Birmingham in the County of Warwick Lamp Manufacturers do hereby declare
the nature of this invention to be as follows:-
"
My invention consists of the improvements herein after described in extinguisher
mechanism for lamps which said improvements are founded on an invention for
Improvements in or connected with extinguisher mechanism for lamps" for which
Letters Patent were granted to William Snelgrove of 42 Hillsboro Road North
Dulwich Surrey Engineer dated March 5th 1887 No. 3414.
The said patented invention consists essentially in the employment 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 strikes against 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 patent is the property of the firm of James Hinks and Son Limited of which
firm I am a member.
In constructing extinguisher mechanism according to my invention I cause the
pendent weight on the inclination of the lamp to operate on the ring and lever
described and by the motion of the said lever I effect the raising of the extinguishers
instead of causing them to be raised by the action of a spring liberated by the said
lever.
In constructing extinguisher mechanism for lamps having double flat wicks I
employ a pendent weight lever and ring but I make the said ring concave on its
underside or of the figure of a hollow cone or hood. I make the said lever which

page_text: I will hereinafter call the ring lever operate on another or second lever in such a way
that the raising of the outer end of the ring lever causes the inner end of the second
lever to rise. The said inner end of the second lever is connected with the
extinguishers and in rising lifts the said extinguishers. The movable flaps of the
extinguishers when raised collapse upon the wicks by the action of springs and
extinguish the flame. Or in place of causing the movable flaps of the extinguishers to
move by the action of springs the said flaps may be operated by inclines over which
their lower ends pass when the extinguishers are raised.
In constructing extinguisher mechanism for lamps having a single flat wick I
employ only one lever having at its outer end a ring operated upon on the inclination
of the lamp by the pendent weight. In this case the depression of the inner arm of
the ring lever causes its forked end to operate on inclines on the two parts of the
extinguisher and shut or close them upon the wick. The two parts of the extinguisher
have no rising and falling motion but open and shut in the former position permitting
of the burning of the lamp and in the latter position closing upon the wick and
extinguishing the flame.
When the extinguishers have movable flaps as described with respect to lamps
having double wicks the friction of the movable flaps against the wick cases may be
diminished by making a small projection either on the wick cases or on the movable
flaps. The rubbing surfaces are thereby reduced to a minimum.
1
T
7000

page_text: COMPLETE SPECIFICATION.
Improvements in or Connected with Extinguisher Mechanism for
Lamps.
0
I JOSEPH HINKS of the firm of James Hinks and Son Limited of Great Hampton
Street Birmingham in the County of Warwick, Lamp Manufacturers do hereby
declare the nature of my Invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
My invention consists of the improvements herein after described in extinguisher
mechanism for lamps which said improvements are founded on an Invention for
"Improvements in or connected with extinguisher mechanism for lamps" for which
Letters Patent were granted to William Snelgrove of 42 Hillsboro Road, North
Dulwich, Surrey, Engineer dated March 5th 1887 No. 3414.
The said patented invention consists essentially in the employment 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 strikes against 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 patent is the property of the firm of James Hinks and Son Limited of
which firm I am a member.
In constructing extinguisher mechanism according to my invention I cause the
pendent weight on the inclination of the lamp to operate on the ring and lever
described and by the motion of the said lever I effect the raising of the extinguishers
instead of causing them to be raised by the action of a spring liberated by the said
lever.
In constructing extinguishing mechanism for lamps having double flat wicks I
employ a pendent weight lever and ring but I make the said ring concave on its
underside or of the figure of a hollow cone or hood. I make the said lever which I
will hereinafter call the ring lever operate on another or second lever in such a way
that the raising of the outer end of the ring lever causes the inner end of the second
lever to rise. The said inner end of the second lever is connected with the extin-
guishers and in rising lifts the said extinguishers. The movable flaps of the
extinguishers when raised collapse upon the wicks by the action of springs and
extinguish the flame. Or in place of causing the movable flaps of the extinguishers
to move by the action of springs the said flaps may be operated by inclines over
which their lower ends pass when the extinguishers are raised.
In constructing extinguisher mechanism for lamps having a single flat wick I
einploy only one lever having at its outer end a ring operated upon on the inclination

page_text: of the lamp by the pendent weight. In this case the depression of the inner arm of
the ring lever causes its forked end to operate on inclines on the two parts of the
extinguisher and shut or close them upon the wick. The two parts of the extinguisher
have no rising and falling motion but open and shut; in the former position permitting
of the burning of the lamp and in the latter position closing upon the wick and 5
extinguishing the flame.
When the extinguishers have movable flaps as described with respect to lamps
having double wicks the friction of the movable flaps against the wick cases may be
diminished by making a small projection either on the wick cases or on the movable
flaps. The rubbing surfaces are thereby reduced to a minimum.
Figure 1 of the accompanying Drawings represents in side elevation, partly in
section; Figure 2 in plan and Figure.3.in end elevation (partly in section) the duplex
burner of an oil lamp to which extinguishing mechanism constructed according to my
invention is applied: Figure 4 represents the same view as Figure with the
extinguishers raised for extinguishing the flames by the action of the finger upon the
pendent weight; Figure 5 exhibits the positions of the parts of the extinguishing
mechanism when the lamp is upset and the said extinguishing mechanism auto-
matically brought into action for extinguishing the flames and Figure 6 represents an
end elevation of the burner with the extinguishing flaps in their raised positions ;
Figure 7 represents in end elevation (partly in section) Figure 8 in plan and Figure 9
in side elevation (partly in section) a lamp burner having a single flat wick and
provided with modified extinguishing mechanism according to my invention.
I will first describe the extinguishing mechanism for the duplex burner.
a, a are the two wick cases of the duplex burner and b, b are the extinguishers
sliding upon the wick cases; 12, 62 are the jointed flaps at the tops of the extin-
guishers: c is the conical pendent weight of the extinguishing mechanism suspended
when in its normal position by the head of the stem e engaging with an eye or hole
in the fixed bracket d carried by the lamp burner; e, f is the ring lever turning on
the joint the ringe of the lever having the figure of part of a hollow cone or hood
to bear upon or embrace the conical weight e: h, i is the second lever turning on the
joint the inner long arm i of which second lever is connected with and lifts the
extinguishers b, b. The inner short arm of the ring lever e, f bears upon the short
outer arm of the second lever h, i and the long arm of the said second lever passes
through a slot in the cross piece of the sliding guide situated between and connected to
the two extinguishers b, b. The two extinguishers b, b and their flaps ba, b² are without
springs the lifting of the said extinguishers when the ring lever ef is lifted by hand
as in Figure 4 or by the upsetting of the lamp as in Figures 5 and 6 being effected
by the action of the second lever h, i upon the extinguishers. When the pendent
weight c takes its normal position on the removal of the pressure from it or by the
restoring of the lamp to its upright position, the sliding extinguishers b, b descend by
their own weight.
The movable flaps 62, 62 may either close upon the tops of the wick cases a, a to
extinguish the flames by the action of springs when the extinguishers are lifted, or
the said flaps 2, 12 may be operated upon by inclines in the manner represented in
the drawings. That is to say, the end of each jointed flap 62 is provided with an
incline or inclined arm m the lower ends of which arms cross one another. Between
the two inclined arms m, m is a fixed, upright n the top of which is bent at right
angles and constitutes a stop p. When the sliding extinguishers b, have been nearly
lifted to their full extent by the action of the second lever hi the crossing ends of the
two inclined arms m, m on the extinguishing flaps strike against the stop p. The
continued motion of the sliding extinguishers causes the said inclined arms to separate
by the action of the stop p upon them. The flaps 62, 62 are thereby turned upon their
joints and made to collapse upon the wicks and extinguish the flames as seen in
Figure 6..
The construction and combination of parts described and represented in Figures 1.
2. 3. 4. 5 and 6 may be used with lamps having single wicks. When applied to
single wick lamps the inner, arm of the second lever acts upon a projection at the back

page_text: of the single extinguisher and the stop p acts upon the single incline or inclined arm
of the extinguisher flap.
will now describe the modified extinguishing mechanism represented in
Figures 7, 8 and 9 of the drawings for a lamp burner having a single flat wick. In
this arrangement the second lever is omitted and the extinguishers open from and
shut upon the wick case instead of having a sliding motion; is the pendent weight
and e, f the ring lever turning on the centre g. The inner arm fis extended inwards
in this modification and is forked the branches of the forked arm being situated on
opposite sides of the single wick case a: 99 are the two parts of the extinguisher
turning on the joints 92, 2 at the bottom of the wick case a and closing upon or
opening from the said case. These parts of the extinguisher are operated upon to
open and close them by the action of the forked end of the ring lever e, f upon the
inclines r,r on the extinguisher, the said inclines being made by preference from the
middles of the two parts of the extinguisher by slitting them and bending the slit
parts inwards as seen in Figure 7.
When the outer arm of the ring lever is lifted by the action of the pendent weight
upon it in the manner hereinbefore described, the inner arm f of the said ring lever is
depressed and bearing upon the inclines r, 1 of the jointed extinguisher 9, 9 closes its
two parts upon the opposite sides of the wick case a and extinguishes the flame.
When the pendent weight c automatically returns to its normal position the inner
arm of the ring lever rises and acting upon the inclines r, r opens the two parts of
the extinguisher q, q as represented in the drawing.
I wish it to be understood that I lay no claim to the use of a pendent weight and
ring lever excepting as modified and used in the manner and in conjunction with the
appliances herein before described and represented.
Having now particularly described and ascertained the nature of my invention and
the manner of performing the same I declare that I claim as my invention ;—
First The combination with extinguishing mechanism for lamps in which a
pendent weight and ring lever are used of the secondary lever marked h, i for lifting
the sliding extinguisher or extinguishers on the lifting of the ring lever by the action
of the pendent weight upon it substantially as herein before described and illustrated
in Figures 1, 2, 3, 4, 5 and 6 of the accompanying Drawings.
Secondly-The combination with the pendent weight of the extinguishing mechanism
of a ring lever, the ring end of which is made concave or of the figure of a hollow
cone or hood or a portion of a hollow cone or hood as herein before described and
illustrated in the accompanying Drawings.
Thirdly The combination with extinguishing mechanism for lamps in which a
pendent weight and ring lever are used of the incline or inclines or inclined arm or
arms m and stop n, p for causing the collapse of the jointed flap or flaps upon the wick
or wicks when the sliding extinguisher or extinguishers is or are raised substantially
as herein before described and illustrated in Figures 1, 2, 3, 4, 5 and 6 of the
accompanying Drawings.
Lastly The combination with the pendent weight of the extinguishing mechanism
of a ring lever having a forked inner arm and an extinguisher the jointed parts of
which open from and shut upon the wick, the opening and closing of the extinguisher
being effected by the forked inner arm of the ring lever acting upon inclines on the
extinguisher as herein before described and illustrated in Figures 7, 8 and 9 of the
accompanying Drawings.
Dated this Twenty ninth day of May 1888.