Improvements in and connected with Burners for Oil Lamps.
Year: 1899

page_text: Date of Application, 19th Oct., 1899
Complete Specification Left, 19th July, 1900-Accepted, 25th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in and connected with Burners for Oil Lamps.
I, JAMES SHARPLES, of 699, Coventry Road, in the City of Birmingham, Com-
mercial Traveller, do hereby declare the nature of this invention to be as
follows:-
This invention consists of the herein described improvements in and connected
with burners for oil lamps so as to facilitate extinguishing the lamp and prevent
the oil leaking through the wick tube or wick tubes and igniting in the event of
the lamp being upset.
My invention is applicable to oil lamp burners of all kinds whether they are
what is known as single wick burners that is fitted with only one wick tube or
whether they are burners provided with what are known as duplex or circular
or crescent or central draught or of other kind of wick tubes.
As an example I will describe my invention as applied to an ordinary flat
flame single wick lamp burner.
In carrying out my invention I provide an air inlet hole or pipe in the neck of
the burner immediately above the base which screws into the oil reservoir this
air inlet pipe or hole being closed by a suitable plug or valve. Within the
burner and surrounding the wick tube I provide a metallic or other funnel the
base of which is fixed to the bottom of the gallery part of the burner above
the winder. The upper part of this funnel is somewhere about level with or
slightly above the top of the wick tube and is rather larger than the wick tube
so as to leave a narrow space all round between the outside of the wick tube
and the inside of the top of the funnel. The said funnel thus forms an air
chamber the only openings to which are the air inlet hole or pipe above referred
to and the outlet at the top round the wick tube. When the lamp is burning the
air contained in the said air chamber expands through the heat and is therefore
at a lower pressure than the external atmosphere. To extinguish the lamp it is
only necessary to open the air inlet by removing the plug or opening the valve so
that the in rush of cold air into the chamber and out through the top against the
flame will instantly extinguish the same.
When my invention is applied to duplex lamps or to those which have a circular
or annular or crescent or other kind of burner, the shape of the top of the funnel
is made to correspond therewith so as to direct the in rush of air against the
flame to extinguish the same when the air plug or air inlet valve is opened as
above described.
In order to prevent the oil from the reservoir leaking through the wick tube or
wick tubes and igniting in case of the lamp falling or turning over I continue the
wick tube or wick tubes down almost to the bottom of the oil reservoir so that if
the lamp should be upset the oil cannot escape along the wick tube or wick tubes.
Dated this 18th day of October 1899.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: Improvements in and connected with Burners for Oil Lamps.
I, JAMES SILARPLES, of 699, Coventry Road, in the City of Birmingham, Com-
mercial Traveller, 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 the herein described improvements in and connected
with burners for oil lamps so as to facilitate extinguishing the lamp.
My invention is applicable to oil lamp burners of all kinds whether they are
what is known as single wick burners that is fitted with only one wick tube or
whether they are burners provided with what are known as duplex or circular
or crescent or central draught or of other kind of wick tubes.
I will describe my invention by referring to the accompanying drawings on
which Fig. 1 is a sectional front elevation of an ordinary flat frame single wick
lamp with my invention applied thereto; Fig. 2 is a sectional side elevation of
the same; Fig. 3 is a sectional plan of the burner and gallery part of the same;
Fig. 4 is a sectional elevation of what is known as a duplex flat wick lamp burner
and gallery with my invention applied and Fig. 5 is a sectional plan of the same.
The same letters of reference indicate the same or corresponding parts in all
the figures.
I will first describe the arrangement of my invention illustrated by Figs. 1,
2 and 3.
In carrying out my invention I provide an air inlet hole or pipe A in the
neck B of the burner immediately above the base C which screws into the hole in
the reservoir 1) this air inlet pipe or hole being closed by a suitable plug or
valve E. Within the burner Band surrounding the wick tube FI provide a
metallic or other non-combustible funnel G the base g¹ of which is fixed to the
bottom e¹ of the gallery part of the burner above the wick winder H. The top g
of this funnel is open and is somewhere about level with or slightly above the
top of the wick tube F and is rather larger than the wick tube (see Fig. 3) so
as to leave a narrow space all round between the outside of the wick tube F and
the inside of the top g² of the funnel G. The funnel G thus forms an air chamber
the only openings to which are the inlet hole or pipe A which is connected thereto
and the outlet g at the top round the wick tube F.
When the lamp is burning and the air inlet hole or pipe A is closed, the air
contained in the air chamber formed by the funnel G expands through the heat
and is therefore at a lower pressure than the external atniosphere.
To extinguish the light it is only necessary to open the air inlet hole or pipe A
by removing the plug or valve E so that the inrush of cold air through the
pipe A into the chamber in the interior of the funnel G and out through the
top against the flame will instantly extinguish the same.
The sides of the funnel are inclined towards the top so as the better to direct
the inrush of air against the flame.
When my invention is applied to a circular or annular or crescent shaped
burner the shape of the top of the funnel G is made to correspond therewith so
as to direct the inrush of air against the flame to extinguish the flame when the
air plug or air inlet valve is opened as above described.
In the case of a duplex burner the top of the funnel G is of course made with
two outlets 37 (see Fig. 4) corresponding with the two wick tubes F1 F2.

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:-
The combination with an oil lamp burner of a funnel closed at the bottom and
surrounding the upper part of the wick tube above the winder and shaped so as
to form a narrow opening all round the top of the wick tube said funnel having
an air inlet closed by a suitable plug or valve which when opened allows air to
rush through the funnel and impinge against the flame and extinguish the same
substantially as set forth.
T111011.
STL 1000
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.