Improvements in Extinguishers for Volatile Oil Burning Lamps.
Year: 1888

page_text: Improvements in Extinguishers for Volatile Oil Burning Lamps.
I, MAX GRAETZ, of 31, Lausitzer Strasse, Berlin, Germany, manufacturer, 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 consists in improvements in extinguishing the flame of volatile oil
burning lamps quickly and effectually. The methods used till now for extinguishing
the flame of oil burning lamps, were generally small folding shutters which closed
upon the wick over the end of the wick tube, these arrangements being more or less
complicated and left much to be desired for in the matter of cleanliness and safety by
the extinguishing of the flame.
It has been proved that when the lighted wick is suddenly and quickly drawn back
into the wick tube the flame is completely separated or cut of from the wick and
extinguished, and no smell or dirt is left behind
In order to effect this sudden and quick withdrawing of the wick back into the
wick tube, I use the mechanism described in the following specification and shown in
the accompanying drawing which forms part of this present application in which
similar letters denote similar parts throughout the different figures.
Fig. 1 shows a section of a burner of an oil burning lamp fitted with my improved
extinguishing gear.
Fig. 2 is a top view of the same
Fig. 3 is an end view of the wheel b.
The knob b on the spindle a, which drives the mechanism for raising or lowering
the wick d is made larger than usual with a groove formed on the edge in which a
cords is wound, on the top or at the side of the wheel 6 is a guard r which guides
the cords in the groove and prevents it from coming out.
To the free end of the cord s is a small ring k fastened to give a better hold of the
cord when extinguishing the lamp.
The operation of extinguishing the lamp is as follows.
On raising the wick & by turning the knob or wheel 6 in the direction of the
arrow p fig 3 the cord is wound on the wheel b in the groove, but when it is
required to extinguish the lamp, all that is necessary, is to catch hold of the ring
with the finger and pull it down, but as the other end of the cords is fastened to the
wheel b, so is wheel b made to revolve rapidly in the opposite direction to the arrow p
(fig 3) and the mechanism for operating the wick set in motion and the wick dis
rapidly depressed in the wick tube and the flame instantly extinguished.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim 18:
1) In volatile oil burning lamps the process of suddenly and quickly drawing the
wick back into the wick tube for the purpose of extinguishing the flame.
2) In volatile oil burning lamps the process of suddenly and quickly drawing the
wick back into the wick-tube by a cord for the purpose of extinguishing the
flame.
3) In volatile oil burning lamps the grooved wheel b on the end of the spindle a
with the cords in combination with the guider for the purpose as described
Dated this 8th dow of June 1888
MAX GRATZ.
By A. Kuhnt & R. Deissler,
38, Alexander Str., Berlin, Germany,
His Attorneys.