Improvements in or relating to Burners for Oil Lamps and in. Extinguishers Applicable therefor.
Year: 1888

page_text: Improvements in or relating to Burners for Oil Lamps and in.
Extinguishers Applicable therefor.
A communication from abroad by ANDREAS GULBRANDSEN HOVDE, of Hoenofos, in
the Kingdom of Norway.
I, GEORGE CEOIL DYMOND M. Inst. M.E. of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool, and 6 Bank Street, Manchester both in
the County of Lancaster, and 323 High Holborn in the County of Middlesex Patent
Agent, 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 :-
The invention relates to lampburners in which a round disc is employed above
the round wick-tube to spread the flame and give it a more or less spherical form.
The invention consists in arranging this disc in such a manner, that it may easily
be lowered down upon the wick or the wicktube and thereby cause the flame to be
extinguished. This lowering down of the flame-spreading disc may be arranged in
several ways, but the most effective manner of arranging the same is to make it drop
down by its own weight. When arranging the saine in such manner, the lampburners
may be utilized in their present shape without undergoing other alterations than
having a few slots cut in them or the like.
In annexed drawing are shown two forms of the said lamp-extinguishing device,
embodying the principle of the invention.
In both cases the disc falls down by its own weight as soon as a device that keeps
the same in appropriate position above the wick has been moved away. This device
is a wedge in one or other form; the employment of a wedge is preferably used,
while it greatly facilitates the elevating of the disc to its ordinary position, when the
lamp is burning.
In Figure 1 is shown a lamp-burner of the said description and where the above
mentioned disc has sufficient diameter to cover the wick when lowered down upon it.
The disc Dis fastened on top of tube d sliding within or without a tube in the

page_text: centre of the burner. (The drawing shows the tube d sliding within tube ). When
in elevated position the bottom of tube d rests on the horizontal part of a plate P
inserted from outside into the burner, the said plate P being provided with a handle /
of some suitable shape. The inner end p of this plate is chamfered or wedgeshaped,
and it is easily seen, that when the plate is drawn outwards, so that the point of the
wedge has passed the tube t, the tube and with this the disc will drop down, the
disc D thereby putting out the flame.
In Figure 2 the same result is attained by a wedge-shaped or eccentric disc P¹
mounted on a spindle p', provided outside with a handle .
In both cases the disc D can be raised again by moving the handle
reverse direction to that which was done when extinguishing the flame.
in the
'
To avoid smell from the wick, this same should always be screwed down a little
before being extinguished.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed as communicated to me by my
foreign correspondent, I declare that what I claim is :-
1. In lamp-burners with annular wick-tubes, the employment of a circular disc
above the wick-tube, which disc has greater diameter than the wick-tube and is
mounted on a tube or pin vertically movable in the centre of the burner, so that
the disc may be lowered down, thereby extinguishing the flame, substantially as set
forth.
2. A lamp-extinguishing device consisting essentially of a circular disc of greater
diameter than the wick-tube, a tube or pin, on which it is mounted, a tube serving as
a guide for the latter and a chamfered plate or wedge, arranged below the same
substantially as described.
3. A lamp-extinguishing device consisting essentially of a circular disc of greater
diameter than the wick-tube, a tube or pin, on which it is mounted, a tube serving as
a guide for the latter and an eccentric disc arranged below the same mounted on a
spindle, which can be rotated substantially as described.
4. The lainp-burner taken as a whole substantially as herein described and shown
on the accompanying drawings.
Dated this 28th day of December 1888.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.