Improvements in or Applicable to Lamps for Burning Hydro-carbons.
Year: 1887

page_text: Date of Application, 8th Jan., 1887.
Complete Left, 14th May, 1887.
Complete Accepted, 14th June, 1887.
Improvements in or Applicable to Lamps for Burning
Hydro-carbons.
I HARRY DOUGLAS CUNNINGHAM, of No. 9 Porchester Square, Hyde Park, in the
county of Middlesex, Engineer do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in or applicable to lamps for burning hydro-
carbon oils the improvements having for object to provide means whereby such lamps
are automatically extinguished in case of the lamp being overturned the improvements
also allowing the lamp to be easily extinguished in other cases when required.
In carrying out my invention to the wick tube of the lamp I adapt a sliding case
which forms the extinguisher, the said extinguisher being adapted to be raised and
lowered by a lever pivotted on a suitably placed fulcrum. To the outer end of the
lever is attached a weight (say a ball) by a chain or cord and a bracket is provided
with a cup to receive the ball so that when the ball is placed on the bracket the lever
is in its normal position the extinguisher being out of action.
Should the lamp be tilted or overturned the ball would fall from the cup and the
weight thereof would be transferred to the end of the lever which would thereby be
pulled down and raise the extinguisher up the wick tube and thereby extinguish the
Hame.
A guard which may consist of a single wire is provided so as to throw the ball aside
and let it hang in the event of the lamp being so inclined that the ball might otherwise
lodge and not act upon the lever.
"
In a modification of the arrangement the extinguisher may be provided with a
spring which normally tends to raise the extinguisher in this case the extinguisher
is kept down by the ball being placed on a bracket directly on the extinguisher. By
this arrangement, on the lamp being tilted or overturned the ball will fall and the
spring will raise the extinguisher and extinguish the lamp.
The extinguisher may be plain or corrugated.
G. F. REDFERN.
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in or Applicable to Lamps for Burning
Hydro-carbons.
I, HARRY DOUGLAS CUNNINGHAM, of No. 9, l'orchester Square, Hyde Park, in
the county of Middlesex, Engineer, 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 :-
:-
This invention relates to improvements in or applicable to lamps for burning liquid
hydro-carbons, the improvements having for object to provide means whereby such
lamps are automatically extinguished in case of the lamp being overturned, the
improvements also allowing the lamp to be easily extinguished in other cases when
required.
In carrying out my invention, to the wick tube of the lamp (or to each wick tube
where more than one is used) I adapt a sliding case which forms the extinguisher,
the said extinguisher or extinguishers being adapted to be raised and lowered by a
lever pivotted on a suitably placed fulcrum. To the outer end of the lever is attached
a weight (say a ball) by a chain or cord and a bracket is provided with a cup or its
equivalent to receive the ball so that when the ball is placed on the bracket the lever
is in its normal position, the extinguisher or extinguishers being out of action.
A guard is provided on the bracket so as to throw the ball aside and let it hang in
the event of the lamp being so inclined that the ball might otherwise lodge and not
act upon the lever.
In another arrangement the extinguisher may be provided with a spring which
normally tends to raise the extinguisher; in this case the extinguisher is kept down
by the ball being placed on a bracket directly on the extinguisher. By this arrange-
ment, on the lamp being tilted or overturned the ball will fall and the spring will raise
the extinguisher and extinguish the lamp.
In order to enable my invention to be fully understood I will proceed to describe
how the same can be carried into practical effect by reference to the accompanying
drawings, in which figure 1 represents an elevation of the upper part of a duplex
lamp for burning liquid hydro-carbons, the burner being represented in section with
my improvements applied thereto. Figure 2 represents a vertical section of the
burner and extinguishing device taken on the line A B of figure 1. Figure 3
represents an elevation of the extinguishers and sleeve for connecting them to one
another so as to enable them to be operated together. Figure 4 represents a plan of
one of the said extinguishers. Figures 5 and 6 represent an elevation and a plan
respectively of a weight or link for closing the extinguishers. Figures 7 and 8
represent a side elevation and a plan respectively of the lever (with its supporting
bracket) and ball for operating tho extinguishers. Figure 9 represents a plan of a

page_text: form of bracket for supporting the said ball adapted to be applied to the stem of the
lamp. Figures 10 and 11 represent a sectional elevation and a plan respectively of a
modified form of the said bracket adapted to be applied to the globe-supporting
gallery of the burner. Figures 12 and 13 represent an elevation and a plan of a
screw, and figure 14 a view of a nut to be used in conjunction therewith for securing
in place the bracket shown in figures 10 and 11. Figure 15 is a plan view illustrating
the mode of applying the bracket shewn in figures 10 and 11. Figure 16 is an
elevation illustrating the arrangement in which the extinguisher is provided with a
spring for raising the same. Similar reference letters indicate similar parts throughout
the several figures of the drawings.
Referring to figures 1 to 9 a, a, are the sliding cases or extinguishers which are
constructed of the form shewn so as to slide upon the wick tubes A A. The
extinguishers a, a, are provided with the usual shutters b, b, for extinguishing the
flames, for which purpose each shutter b, is provided with a wire loop c, which
extends between the extinguishers a, a, a weight or link d, engaging with them as
shewn and serving by its weight to close the shutters when the said extinguishers are
raised as shown by the dotted lines in figure 2. When however the extinguishers are
in their lower position as shewn by the full lines in the same figure; the shutters are
kept open in the usual manner by the bodies of the wick tubes A A being interposed
between the shutters and the main parts of the extinguishers.
To enable the extinguishers a, a, to be moved together they are each provided with
a pin e, which extends a short distance between the said extinguishers, the said pins
being coupled together by means of a loose piece of tubing or sleeve: y, is the lover
one end of which serves to raise the extinguishers a, a, by acting on the under side
of the sleeve, or it may be jointed to it. The said extinguishers however fall by
gravity thereby causing the lever to resume its normal position. The other end of
the said lever g, extends outside the lamp and is connected by a cord or its equivalent
to a ball h; i, is the bracket to which the lever g, is pivotted and the lower part of
which is formed of the shape shewn so as to fit frictionwise between the wick tubes A A
thus enabling the same to be applied to the lamp in an easy and expeditious manner;
is the bracket provided with a hole or its equivalent for receiving the ball h, when
the lamp is not required to be extinguished as shewn in figure 1; k, is the guard on
the bracket j, which is fixed to the stem of the lamp and serves to prevent the ball h,
lodging on any part of the lamp should the same be upset as hereinafter described.
Should the lamp be tilted or overturned the ball, will fall from the bracket j, and
the weight thereof will be transferred to the outer end of the lever which will
thereby be pulled down and raise the extinguishers a, a, up the wick tubes A A and
thereby extinguish the flames of the wicks of the same.
In figures 10 and 11, I have shewn the bracket j, somewhat modified so as to allow
it to be applied to the globe-supporting gallery B of the burner of a lamp as shewn
in figures 2 and 15. For this purpose I provide the said bracket with an extension j³,
provided with a hole, through which is passed the screw, 13, figures 12 and 13 when
securing the said bracket to the gallery B as shewn in figures 2 and 15.
It will be obvious that I can connect the extinguishers a, a, by means of a rigid
connection but I prefer to use the pins e, e, and sleeve f, which enable the said
extinguishers to be applied and adjusted to any duplex lamp as the wick tubes are
found to vary slightly in their distance apart.
In figure 16 which represents a side elevation of a small portable lamp, *, is the
spring with which I provide the extinguisher a, the said spring normally tending to
raise the extinguisher; h, is the ball which in this case, when the lamp is lighted, is
placed on a bracket, directly on the extinguisher a, and by compressing the spring",
serves to keep down the extinguisher. If however the lamp be tilted or overturned
the ball h, will fall and the spring j, will raise the extinguisher a, and extinguish the
lamp.
Instead of the extinguisher being made plain as shewn in the drawings it may be
mado corrugated.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. An automatic lamp extinguishing device or attachment consisting of an
extinguisher such as a, a, in combination with a fulcrumed lever g, one end of which
carries a suspended weight and the other end of which bears against the extinguishers;
and a supporting bracket j, for the weight, the whole arranged and operating
substantially as and for the purpose setforth.
2. An extinguisher for duplex lamps consisting of two parts connected together by
an arrangement such as is herein described whereby the extinguisher can be adapted
to duplex lamps the wick tubes of which are of varying distances apart.
3. The combination with the shutters of lamp extinguishers of a wire loop c, and
weight or link d, for the purpose and substantially as setforth.
4. The use in combination with a lamp for burning hydro-carbons of the arrange-
ment illustrated in figure 16 of the accompanying drawings.
*
1007
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.