A Selfadjusting Extinguisher for Lamps with Centre Draught.
Year: 1888

page_text: Date of Application, 10th Aug., 1888
Complete Specification Left. 9th Apr.. 1889-Accepted. 20th July. 1889
PROVISIONAL SPECIFICATION.
A Selfadjusting Extinguisher for Lamps with Centre Draught.
EUGEN SIEGFRIEDT Lamp Manufacturer 172 Camberwell New Road London S.E.
& 35 Ely Place E.C. do hereby declare the nature of this invention to be as
follows:-
By the aid of a Lever a Ring with 4 hinged Segments is caused to rise round the
centre of the Burner and entirely compasses the outward and interior Draught
thereby extinguishing the light and afterwards readjusting itself into its former
position.
Dated this Ninth day of August 1888.
EUGEN SIEGFRIEDT.
COMPLETE SPECIFICATION.
A Selfadjusting Extinguisher for Lamps with Centre Draught.
I EUGEN SIEGFRIEDT Lamp Manufacturer 73, Moray Road Tollington Park N.
late of 172, Camberwell New Road S.E. London 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 :-
Figure No. 1 represents a Lamp-burner with Centre Draught.
The Burner is constructed in the ordinary way of a Cottontube E Burner gallery F
and the Basket G.
A is a Sliding ring round the Cottontube E, diametrically opposite each other are
two pairs of Pins I fixed to Sliding ring between those work the Arms of a double
Lever B, which latter swings round a Pin K attached to the basket G.
By pressing or pulling the outer end of the Lever B, downwards the Ring A is
raised to the Edge of the Cottontube E; a number of Segments D, hinged to the
Sliding ring A inclining towards the Centre are caused by the gravitation to fall upon
the Surface of the Wick, shutting off all inner Draught and extinguishing the
flame.
By the pressure of a wire spring C, whose one end is fastened to a pin L on the
outer End of the Lever B, and the other end round the pin K attached to the
basket G, the Sliding ring A is moved downwards readjusting itself into its former
position.
If Spring is not used the readjustment is caused by Weight or a heavy Ring.
To prevent the Sections D from falling outwards and to secure regular Action
For the safety of extinguishing Lamps a Disk divided into a number of Segments
is used that drops upon the burning flame thereby causing the Lamp to cease
burning.
It has been found a matter of great difficulty and disadvantage to the modern
Lamps constructed with a Centre draught to find means and ways of attaching an
Extinguisher for putting them out when alight without being detrimental to the
illuminating power of the Lamps or without the danger and risk of causing an
explosion by the so many dangerous results of blowing down the lamp glass of a
lighted Lamn from the ton.

page_text: An Extinguisher that combines all such advantages I describe hereby and I give an
illustration in the Figure 1.
The selfadjusting Extinguisher insures the perfect safety of extinguishing the
flame, as a Disk divided into a number of Segments falling on the burning wick by
the aid of a Lever and further by the adaption of either an attached wire Spring,
Weight or heavy Ring. the Extinguisher readjusts itself into its. former position
without injuring the Surface of the Wick and enabling the Lamp to be lighted again
without further trouble or trimming of the Wick it being a great advantage to those
Lamps with Centre Draught now in common use.
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. Perfect safety of extinguishing Lamps with Centre Draught.
2. Utility by the action of a wire spring, heavy Ring or Weight causing the re-
adjustment of the Extinguisher.
3. The non-interference with the illuminating power of Lamps with Centre
Draught.
4. The relighting of Lamps without the manual labour of readjusting the Ex-
tinguisher from the surface of the Wick.
Dated this Ninth day of April 1889.
EUGEN SIEGFRIEDT.