Improvements in Lamps for Burning Liquid Hydrocarbons.
Year: 1888

page_text: Date of Application, 8th Oct., 1888
Complete Specification Left, 5th July, 1889-Accepted, 24th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Lamps for Burning Liquid Hydrocarbons.
I, HENRY NICOLL of 45 Warwick Street, Golden Square, in the County of
Middlesex, Outfitter, do hereby declare the nature of this invention to be as
follows:
My invention relates to lamps for burning liquid hydrocarbon and comprises an
improved extinguisher adapted to operate automatically in case the lamp is over-
turned, or to be operated by hand to extinguish the lamp when required.
According to my said invention I extend the lever which serves to throw up
the shutters through the impulse of a spring, as far as possible without interfering
with its free working in the burner cage. The extremity of this lever is bent at
right angles to the main portion and projects on one side sufficiently to engage
with and be retained by the short arm of a tripping lever. The long arm of this
tripping lever extends almost to the opposite side of the burner cage and its end
works up and down in a slot of an upright tube which is larger at the top than
at the base. This tube is covered or closed at the top by a cap or the like and contains
a metal ball which acts as a weight on the long arm of the tripping lever, to hold the
short arm of the same in engagement with the projection on the ordinary lever.
With this construction if the lamp is overturned, before it assumes a horizontal
position, the ball has an incline to run down towards the large end of the tube, and
when its weight is off the long arm of the tripping lever, the shutter lever is released
and the lamp extinguished. This angle at which the lamp is automatically
extinguished can be regulated by increasing or diminishing the size of the top of the
tube in proportion to its base. When the lamp is in a vertical position it cannot be
extinguished. by a stroke, or by carrying it about.
An advantage of this invention is that there is nothing outside the burner cage
except the end of the shutter lever which serves to lower the shutters for lighting and
to extinguish the lamp by pressing it down, so as to overcome the weight of the ball
at the end of the tripping lever.
1
1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Lamps for Burning Liquid Hydro-carbons..
I, HENRY NICOLL, of 45, Warwick Street, Golden Square, in the county of
Middlesex, Outfitter, 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 :-
My invention relates to lamps for burning liquid hydrocarbons, and comprises an
improved extinguisher adapted to operate automatically in case the lamp is over-
turned, or to be operated by hand to extinguish the lamp, when required.
In the accompanying drawing,
Figure 1 is an elevation of a duplex lamp burner provided with an automatic
extinguisher constructed according to my invention, part of the dome, chimney-
holder and gallery being broken away to shew the mechanism.
Figure 2 is a similar view to fig. but taken at a right angle thereto.
Figure 3 is a plan of the burner with the dome and gallery removed.
Figures 4, 5, 6 and 7 are views of parts of the mechanism.

page_text: Similar letters in all the figures indicate similar parts.
aa are the shutters (shewn detached in elevation at figs. 4 and 5) hinged to the
plates bb, sliding over the wick tubes cr, and d is the lever which serves to throw up
the shutters a a through the impulse of a springe as usual, the lever being pivotted:
to lugs ffformed on a plate g, shewn in figs. 6 and 7, which are a plan and an
elevation respectively of the said plate with the various parts of the mechanism which
it serves to support. This plate is formed with an opening which allows of it being
passed over the wick tubes cc; it is then secured to the floor i of the burner by means"
of a nut j¹ screwed over a stud k¹ on the said floor and projecting through a hole a¹ in
the plate g
I extend the lever d as far as possible without interfering with its free working in
the burner-cage h². Its end is bent at right angles to the main portion d and
projects on one side, as shewn, sufficiently to engage with and be retained by the short
arm of a tripping lever j k pivotted at to the plate.g.. The long arm k of this
tripping lever extends almost to the opposite side of the burner-cage h¹, and its end
works up and down in a slot m made in an unright tube n, which is larger at the
top than at the base. This tube is covered or closed at the top by a cap or cover o
and contains a metal ball, (shewn by a dotted circle p,) which acts as a weight on the
long arm of the tripping lever to hold the short arm j of the same in engagement
with the projection on the ordinary lever d.
P
With this construction, if the lamp is overturned, before it assumes a horizontal
position, the ball p has an incline to run down towards the large end of the tube n,
and when its weight is off the long arm k of the tripping lever, the shutter lever d is
released and the lamp extinguished. This angle at which the lamp is automatically
extinguished can be regulated by increasing or diminishing the size of the top of the
tube n in proportion to its base. When the lamp is in a vertical position it cannot
be extinguished by a stroke, or by carrying it about.
:
An advantage of this invention is that there is nothing outside the burner-cage
except the end of the shutter lever d which serves to lower the shutters a a for
lighting, and to extinguish the lamp by pressing it down so as to overcome the weight
of the ball p at the end of the tripping lever jk.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to he performed, I declare that what I
claim is :-
1. The use in combination with a lamp for burning liquid hydro-carbons, of the
improved extinguisher comprising a tripping lever adapted to retain and release the
shutter lever, a box having its top of larger size than its base and a ball contained
within the said box, the said ball normally resting on the tripping lever and thereby
serving to retain the shutter lever, and in the event of the lamp being overturned,
running along the inclined sides of the box and thereby releasing the shutter lever
before the lamp-reaches a horizontal position, substantially as set forth...
2. The manufacture and use of the improved extinguisher for lamps hereinbefore
described and illustrated in the accompanying drawing.
Dated the 5th day of July 1889.
G. F. REDFERN & Co.,
4; South Street, Finsbury, London, Agents for the Applicant.