IMPROVEMENTS IN LAMPS FOR BURNING LIGHT OR VOLATILE OILS رو
Year: 1883

page_text: LETTERS PATENT to Joseph Hinks of Birmingham in the County of Warwick
Manufacturer for an Invention of "IMPROVEMENTS IN LAMPS FOR BURNING
LIGHT OR VOLATILE OILS
رو
PROVISIONAL SPECIFICATION left by the said Joseph Hinks at the Offico
of the Commissioners of Patents on the 11th September 1883.
JOSEPH HINKS of Birmingham in the County of Warwick Manufacturer
"IMPROVEMENTS IN LAMPS FOR BURNING LIGHT OR VOLATILE OILS
"
My invention has for its object to facilitate the trimming of the wicks and the
lighting of the said lainps and the filling of the reservoirs of the said lamps and
consists of improvements in an invention for which Letters Patent were granted to
me dated the 13th day of May 1882 N° 2265.
In the said patented invention the globe holder is supported by three rods
sliding vertically in guide holes in the burner and collar of the oil reservoir. The
globe holder is supported in its highest and fixed in its lowest positions by a spring
bolt snapping into one or other of two notches or recesses made near the top and
bottom of the middle rod. The said middle rod has also a longitudinal slot in
which a bolt or projection engages and limits the motion of the bolder. The
burner has an uuder vertical rod with top and bottom notches for supporting the
burner and globe holder when they are raised and locking them when down.
In my present invention the globe holder has the three rods described but the
middle rod is without the top and bottom notches that is it has only the longi-
tudinal slot for limiting its motion. To the underside of the burner I attach two
vertical tubes in which tubes the two outer rods of the globe holder slide. These
two tubes have notches at top and bottom into which the ends of a semicircular
spring bolt snap for the purpose of supporting the burner and globe holder when
raised and locking the burner when it is lowered.
The raising and lowering together of the burner and globe holder is effected in
the way described in the patent referred to but the raising and locking of the globe
older alone is effected by means of a lever turning upon a fulcrum or centre on
he burner. This lover is in its normal position nearly horizontal one arm being
1

page_text: external to the burner and terminating in a thumb plate the other arm being
inside the upper perforated part of the burner and bearing on the underside of the
globe holder. When the thumb plate terminating the outer arm of the lever is
pressed down, the inner arm rises and lifts the globe holder and by pressing the
lever into a vertical position the globe holder is supported in its raised position the
lever when vertical having no tendency to resume its horizontal position. In order
to lower the globe holder the lever is restored to its normal position when the
globe holder descends by its own weight.
The burner may where preferred be connected to the oil reservoir in the usual
ways that is by means of a screw or a socket or a bayonet joint fastening. In
this case the parts described for raising and lowering the burner are dispensed
with the rising and falling motion of the globe holder being effected by the lever
described

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Hinks in the Patent Office on the 28th February 1884.
JOSEPH HINKS of Birmingham in the County of Warwick Manufacturor
IMPROVEMENTS IN LAMPS FOR BURNING LIGHT OR VOLATILE OILS
"
My invention has for its object to facilitate the trimming of the wicks and the
lighting of the said lamps and the filling of the reservoirs of the said lamps; and
consists of improvements in an invention for which Letters Patent were granted
to me dated the 13th day of May 1882, N° 2265.
In the said patented invention the globe holder is supported by three rods
sliding vertically in guide holes in the burner and collar of the oil reservoir
The globe holder is supported in its highest and fixed in its lowest positions by
a spring bolt snapping into one or other of two notches or recesses made near the
top and bottoin of the middle rod. The said middle rod has also a longitudinal
slot in which a bolt or projection engages and limits the notion of the holder.
The burner has an under vertical rod with top and bottom notches for supporting
the burner and globe holder when they are raised and locking then when down.
In my present invention, the globe holder has the three rods described but the
middle rod is without the top and bottom notches, that is, it has only the
longitudinal slot for limiting its motion. To the underside of the burner I attach
two vertical ubes in which tubes the two outer rods of the globe holder slide.
These two tubes have notches at top and bottom into which the ends of a semi-
circular spring bolt snap for the purpose of supporting the burner and globo
holder when raised and locking the burner when it is lowered.
The raising and lowering together of the burner and globe holder is effected in
the way described in the patent referred to but the raising and locking of the
globe holder alone is effected by means of a lever turning upon a fulcrum or centre
on the burner. This lever is in its normal position nearly horizontal, one arm
being external to the burner and terminating in a thumb plate, the other arm
being inside the upper perforated part of the burner and bearing on the underside
of the globe holder. When the thumb plate terminating the outer arm of the
lever is pressed down the inner arm rises and lifts the globe holder and by pressing
the lever into a vertical position the globe holder is supported in its raised position,
the lever when vertical having no tendency to resume its horizontal position.
In order to lower the globe holder the lever is restored to its normal position
when the globe holder descends by its own weight.
The burner may where preferred be connected to the oil reservoir in the usual
ways, that is, by means of a crew or a socket or a bayonet joint fastening. In
this case the parts described for raising and lowering the burner are dispensed
with the rising and falling motion of the globe holder being effected by the lever
described.
I will now proceed to describe with reference to the accompanying Drawings
the manner in which my invention is to be performed.
Figure represents in side elevation partly in vertical section, a portion of a
lamp for burning light or volatile oil containing my invention, both the shade
holder or gallery and the burner being represented in their lowered or normal
positions; Figure 2 represents the globe holder raised from the burner for lighting
the lamp or trimming the wicks and Figure 3 represents both the globe holder
and burner raised from the oil reservoir for filling the said oil reservoir; Figure 4
represents in side clevation, partly in section, and Figure 5 in. plan of upper side,

page_text: the burner detached from the lamp; Figure 6 represents in side elevation and
Figure 7 in plan of upper side the shade holder detached from the lamp; Figure 8
represents in plan; Figure 9 in horizontal section and Figure 10 in vertical section,
the semi circular spring bolt and details of the same by which the burner is
supported in its raised position and locked in its lowered position and the motion
of the shade holder limited.
The same letters of reference indicate the same parts in Figures 1, 2, 3, 4, 5, 6,
7, 8, 9 and 10.
a is the shade holder of the lamp, having on its underside three vertical rods b, b
and c.
The said rods are without cross notches in them but the middle rod or
tube c has in it a longitudinal slot d for limiting the motion of the shade holder
as hereinafter explained; e is the sliding burner of the lamp having on its
underside two vertical tubes f, in which the two outer rods b, b on the globo
holder a slide. The said tubes f, f have cross notches g, g at top and other cross
notches h, h near the bottom. Into one or other of these sets of notches, the
cross parts i, 2 of the semi circular spring bolt i snap as hereinafter explained.
The construction of the said spring bolt will be best understood by referring to
Figures 8, 9 and 10. The semi circular spring bolt i, 2, 2 is carried by the fixed
mount secured to the oil reservoir of the lamp, the said bolt sliding upon and
being supported by the semi-circular shoulder made in the said mount. At the
middle part of the bolt is a loop m which embraces the middle slotted tube c on
the shade holder a, a stop pin or stud n on the looped part m engaging with the
slot d in the said tube c as scen in Figures 8, 9 and 10. By means of the said
stop pin or stud n the vertical motion in either direction of the shade holder a is
limited. The snapping or outward motion of the bolt i, i³, is effected by the
coiled spring p around the beaded and screwed push rod 9 of the said bolt, the
said spring having a bearing at one end against the fixed mount k and at its other
end against the adjustable collar r on the screwed end of the said push rod q. By
pushing inwards the push rod of the bolt its cross ends i³, i may be removed
from the notches in the tubes f, f for permitting of the raising or lowering of
the burner. The pushing inwards of the bolt is limited by the compressed coiled
spring and the adjustable collar r. When the collar r is in the position Figures 8,
9 and 10, the pushing inwards of the bolt does not remove the stop pin or stud n
from the slot d in the tube c. When however it is required to disconnect the
shade holder a. from the mount on the oil reservoir, the screw collar on the
screwed end of the push rod q is adjusted nearer to the head of the said push rod.
The bolt can now be pushed inwards to such an extent as will completely remove
the stop pin or stud n from the slot d in the tube c when the shade holder can be
lifted vertically and detached from the mount as will be understood by an
examination of Figure 10.
When the burner e is in the position Figures 1 and 2 the cross ends i², of the
spring bolt i are engaged in the upper slots g, g in the tubes f, f and the said
burner is locked in its lowered position. In order to raise the burner e together
with the shade holder a into the position represented in Figure 3, the spring
bolti, is pressed inwards by acting upon the push rod q. The burner is
thereby liberated from the mount and the said burner and shade holder can bo
raised into the position represented in Figure 3 in which position the cross
arms 2,2 of the spring bolt snap into the lower slots h, h in the tubes f, fand
support the said burner and shade holder in their raised position. On releasing
the burner it falls by its own weight and is refastened in its lowered position by
the spring bolt snapping into the upper slots g. g in the tubes ff. When the burner
is in the position Figure 3 it may be disconnected from the mount for placing
wicks in it, for cleaning or other purpose by withdrawing the bolt froin the lower
slots h, h and lifting the burner vertically.
The raising of the globe holder a alone into the position Figure 2 for lighting
the lamp and fastening the globe bolder in its lowered position Figure 1, are
effected by the lever 8, 82 turning on the centre 83 carried by the burner c. The

page_text: arm s is wholly within the burner but the thumb plate end of the other arm 8 is
situated external to the burner. The end of the inner arms of the lever takes into
a slot t in the bracket u on the shade holder a (see Figure 7) the said bracket also
carrying the three rods b, b, c. Near the top of the lever 8, 8º is a cross pin 8* which
on the motion of the said lever takes a bearing against the underside of the said
bracket u. When in the position Figure 1 the lever, 8, 8' is situated horizontally
and when the thumb plate end s² is pressed down the inner arms rises and lifts
the shade or globe holder u and by pressing the lever into a vertical position the
globe holder is supported in its raised position as represented in Figure 2. By
restoring the lever 8, 8 to the position represented in Figure 1 the globe holder a
falls by its own weight and when it has descended onto the burner a tooth x on
the thumb plate end of the lever snaps into the loop y, on the side of the shade
holder a and fastens the latter in its lowered position as seen in Figures 1 and 3.
Figure 11 represents in sido elevation a portion of a lamp in which the burner is
connected to the oil reservoir in the ordinary way and the shade holder is raised
by a modified lever arrangement; Figures 12 and 13 represent side elevations
(partly in section) of the lamp taken at right angles to one another with the shade
holder in its raised position, and Figure 14 represents in plan the burner with the
shade holder removed.
In this modification the lifting lever is furnished with two arms a², ac² at opposite
sides of the lamp the said arms being fixed on the ends of the cross axis a turning
in the top of the burner e; ³ is the thumb plate by which the lever is operated.
When the lever arms x2, x² are raised by depressing the thumb plate end they
bear under the opposite sides of the gallery of the shade holder & and lift the said
shade holder into the position represented in Figures 12 and 13. When the lever
arms, ² are in their fully lifted positions, stops x, x on them engage under the
rim of the burner e and their further motion is prevented. The said lever
arms x, x in their raised positions are slightly inclined or are situated slightly
beyond a vertical line so that the weight of the shade holder tends to press the
stops, against the burner and the descent of the shade holder is thereby
prevented. By raising the thumb plate end 3 of the lever, the stops x, x are
withdrawn from under the burner e and the lever arms x, x may be depressed and
removed from the shade holder a, when the latter falls by its own weight.
The shade holder is guided in its vertical motion by the tubes on its underside
working upon the fixed pegs or rods x6, " on the burner e.
The arrangement of lever last described may be applied to lamps having sliding
burners in place of the lever represented in combination with a sliding burner.
Having now described the nature of my invention and the manner in which the
same is to be performed I wish it to be understood that I claim as my invention of
"Improvements in lamps for burning light or volatile oils”
;-
First Raising the sliding shade holder or gallery from the burner for lighting tho
lamp or trimming the wicks by means of a lever constructed and acting sub-
stantially as herein before described and illustrated in Figures 1, 2, 3, 5, 6 and 7
of the accompanying Drawings; also the modification herein before described and
illustrated in Figures 11, 12, 13 and 14 in which the arms of the lever operato
upon opposite sides of the shade holder.
Secondly-The construction and combination of parts herein before described and
illustrated in Figures 1, 2, 3, 4, 8, 9 and 10 of the accompanying Drawings for
supporting the sliding burner in its raised position and for fastening it in its
lowered position; that is to say, the combination of the two vertical notched
tubes ff on the underside of the burner with the semi circular spring bolt i, i², 22
P, q, the several parts being constructed and arranged and acting substantially as
described and illustrated.
Thirdly-The combination of the loop m and tooth n of the spring bolt with the
slotted rod or tube c, d for limiting the sliding motion of the shade holder as
herein before described and illustrated in Figures 8, 9 and 10 of the accompanying

page_text: Drawings; also the combination of parts described and illustrated in Figures 8, 9
and 10 for permitting of the detachment of the shade holder from the mount and
burner.
In witness whereof I tho said Joseph Hinks have hereunto set my hand and
seal this twenty seventh day of February in the year of our Lord one thousand
eight hundred and eighty four.