Improvements relating to Oil Lamps.
Year: 1897

page_text: Improvements relating to Oil Lamps.
We, GEORGE ALEXANDER BRODERICK and ALFRED JOHN RILEY, both of the
Riley Intermittent Self Feeding Oil Lamp Syndicate, of Council Chambers, 109,
Colmore Row, in the City of Birmingham, Manufacturers, do hereby declare the
nature of this invention to be as follows: :―
This invention consists of improvements relating to oil lamps, our object being
to provide simple and effective means whereby without lowering the wick or wicks
the flame or flames can be readily extinguished, but in such a manner as to leave
a gleam serving for the equally ready and automatic re-lighting of the lamp on
the operation of the extinguishing device in the reverse direction.
In the application of our invention to a lamp having duplex wicks of the ordinary
Hat or rectangular form, we employ an extinguishing shutter consisting of a
double socket piece of brass or other metal, fitting over the wick tubes and arranged
to slide upon the same by the operation of the lever pivoted in any convenient
position upon the lamp. Each socket is provided with a spring side piece which
is pressed back against the action of the spring when the complete shutter is in
its lower position thus covering the top of the wick and extinguishing the flame.
A small groove or aperture is formed through the top of each spring side piece to
leave a sufficient portion of the wick exposed to provide a gleam of light, which
remains burning when the main part of the flame has been extinguished by the
shutter.
On operating the lever in the reverse direction the shutter is lowered upon the
wick tubes and on thus uncovering the wicks they will be automatically re-lighted
by the gleam hereinbefore described.
We adapt our invention to lamps with single flat wicks, and also to circular
wicks and other forms, and we sometimes arrange for the regulation of the extent
of the flame by shutting off varying portions of the wick according to the amount
of light required.
Improvements relating to Oil Lamps.
We, GEORGE ALEXANDER BRODERICK and ALFRED JOHN RILEY, both of the
Riley Intermittent Self Feeding Oil Lamp Syndicate, of Council Chambers, 109,
CD 017

page_text: Colmore Row, in the City of Birmingham, 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:-
This invention consists of improvements relating to oil lamps, our object being
to provide simple and effective means whereby the main flame or flames can be
readily extinguished, but in such a manner as to leave a gleam serving for the
equally ready and automatic relighting of the lamp.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to :-
Figure 1 is a side or front elevation and Figure 2 an end elevation representing
a portion of a lamp with duplex wicks having our invention applied thereto.
Figure 3 is an end view of the upper portion of the wick tubes showing the
extinguishing shutter.
Figure 4 is a side or front elevation of a portion of a lamp with a circular wick
having our invention applied thereto.
The same reference letters in the different views indicate the same parts.
In the application of our invention to a lamp such as illustrated at Figures 1, 2,
and 3 having duplex wicks of the ordinary flat or rectangular form, we employ
an extinguishing-shutter as A consisting of a double socket piece of brass or other
metal, fitting over the wick tubes B B and arranged to slide upon the same by
the operation of a lever C pivotted in any convenient position upon the lamp.
Upon each socket is pivotted a side piece A¹ which is pressed back, against the
action of the spring A2, when the complete shutter is in its lower position shown
by the full lines at Figure 3. In such a position of the shutter A the upper ends
of the wicks are exposed for burning but on depressing the lever C to the limit
permitted by the stop piece 1, the shutter A is raised upon the wick tubes
sufficiently to carry the upper and covered end of each of the side pieces A¹ just
clear of the top of the wick tubes. Under the action of the springs as A², such
curved upper end pieces are then forced over the tops of the wicks as shown at
Figures 1 and 2, and by the dotted lines at Figure 3, and thus extinguish each
flame or the main part of the same. A small groove or aperture a is formed
through the top of each spring side piece A¹ to leave a sufficient portion of the
wick exposed to provide a gleam of light which remains burning when the main
part of the flame has been extinguished by the shutter.
On operating the lever C in the reverse direction the shutter is lowered upon
the wick tubes BB¹ and during such movement the side pieces A¹ are auto-
matically forced from the tops of the tubes thus uncovering the wicks which will
then be automatically relighted by the gleam herein before described.
We adapt our invention to lamps with single flat wicks and also to circular
wicks and other forms, and we sometimes arrange for the regulation of the extent
of the flame by shutting off varying portions of the wick according to the amount
of light required, the side pieces A¹ having for this purpose a larger aperture than
is indicated at a Figure 1, or two or more apertures can be provided.
In the adaption to a circular wick as illustrated at Figure 4 we dispense with a
sliding shutter and employ a separate pilot wick arranged in a small tube as E
adjacent to the main wick tube F, such pilot wick being kept constantly burning
but so adjusted as to give only a gleam sufficient to light the main wick when the
latter is turned up in the ordinary manner. The main light is extinguished on
turning down the wick in its tube F.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what we
claim is:
1. In oil lamps the provision of a gleam or a pilot light substantially as and for

page_text: 2. A shutter or extinguisher for oil lamps so constructed and arranged as to
prevent it from extinguishing the whole of the light, substantially as described.
3. The arrangement and combination of parts forming the improvements relating
to oil lamps, substantially as and for the purposes described and as illustrated.
Dated this 26th day of Mar 1898
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicants.