Year: 1886

page_text: Date of Application, 21st Aug., 1886.
Complete Left, 22nd June, 1887
Complete Accepted, 21st Sept., 1887
་
RESERV
1,ALEXANDER ALFRED LISTER of 21 Calmington Road, Camberwell, in the county
of Surrey, Gas Engineer, do hereby declare the nature of this invention to be as
follows:-
--
The object of the apparatus which forms the subject of my invention is to provide a
safe effective and convenient means of lighting gas burners, which are not readily
accessible, and also of lighting gas burners provided with chimnies without requiring
the removal of the said chimnies.
The apparatus is constructed substantially as follows :-
The burner is provided with a tap in the usual way, a small tube is inserted in the
gas supply pipe below the said tap and terminates at or near the orifice or orifices of
the burner.
The said small tube is furnished with a tap, preferably near its junction with the
supply pipe, and the part beyond such tap is split for the whole or nearly the whole of
its length.
To use the apparatus, the tap in the small tube is first turned on and a light applied
to the slit, a small flame will at once run up this slit to the orifice or orifices of the
burner.
The burner tap is then turned on, when the gas will be instantly ignited by the
small flame aforesaid, and the tap in the small tube may then be turned off.
In place of splitting the said small tube, I sometimes provide a series of small holes
along one side thereof; and to form such holes, I preferably file or cut notches in the
tube, taking care that such notches are not cut quite through the thickness of the
metal, I then press a needle point through the centre of each notch, thus leaving a
series of very small holes along the pipe.

page_text: In using the apparatus, if by mistake the burner tap be turned on first, a slight
explosion or puff may take place when the gas is ignited. To obviate this I sometimes
provide an interlocking device between the two taps, so that the burner tap cannot be
turned on until the tap in the small tube has first been turned on.
My invention is especially adapted for use with Argand and other similar burners
which. require chimnies, also for burnors enclosed in globes or lanterns, which cannot
be lit in the ordinary way without first removing or opening the said globes or
lanterns.
Dated this Twenty first day of August 1886.
AMBROSE MYALL, ().E.,
Agent for the Applicant.
Improvements in Apparatus for gating was
I, ALEXANDER ALFRED LISTER of 21 Calmington Road, Camberwell in the county
of Surrey, Gas Engineer 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 object of the apparatus which forms the subject of my invention is to provide
a safe effective and convenient means of lighting gas burners, which are not readily
accessible and also of lighting gas burners provided with chimnies without requiring
the removal of the said chimnies.
The apparatus is constructed substantially as follows: The burner is provided with
a tap in the usual way, a small tube is inserted in the gas supply pipe below the said
tap and terminates at or near the orifice or orifices of the burner.
The said small tube is furnished with a tap, preferably near its junction with the
supply pipe, and the part beyond such tap is split for the whole or nearly the whole of
its longth.
To use the apparatus, the tap in the small tube is first turned on and a light applied
to the slit, a small flame will at once run along this slit to the orifice or orifices of the
burner.
The burner tap is then turned on, when the gas will be instantly ignited by the
small flame aforesaid, and the tap in the small tube may then be turned off.
In place of splitting the said small tube, I sometimes provide a series of small holes
along one side thereof, and to form such holes, I preferably file or cut notches in the
tube, taking care that such notches are not cut quite through the thickness of the

page_text: metal, then press a necate point through the centre of Bach Hotch, Cats Itaying a
series of very small holes along the pipe.
In using the apparatus if by mistake the burner tap be turned on first, a slight
explosion or puff inay take place when the gas is ignited.
To obviate this I sometimes provide an interlocking device between the two taps, so
that the burner tap cannot be turned on until the tap in the small tube has first been
turned on.
My invention is especially adapted for use with Argand and other similar burners,
which require chimnies, also for burners enclosed in globes or lanterns, which cannot
be lit in the ordinary way without first removing or opening the said globes or
lanterns.
I may, if desired, construct my apparatus on the principle of the "Bunsen" burner,
by mixing air with the gas in the usual well known manner, in order to obtain a flame
which will not smoke any part of the lamp with which it may temporarily come in
contact.
In the accompanying five sheets of drawings:
Fig. 1 is an elevation of an ordinary argand gas burner.
Fig. 2 an elevation of a "Douglass" argand gas burner, and
Figs. 3 and 4 are elevations of regenerative gas lamps, having my invention applied
thereto in each case. Fig. 5 is a view of the interlocking device for the taps.
Similar letters of reference denote similar parts throughout the drawings.
In figure 1, A is the main tap of the burner and B the supply pipe, a small tube C
is fitted into the said pipe below the tap A and carried up till it terminates at or near
the top of the burner D. A small tap E is provided in the tube C. This tube is
perforated from about the point to its upper end as shewn, but a continuous slit may
be employed if preferred. To ignite the burner the tap E is turned on and a light
applied at the point C¹, a series of small jets will immediately run up the pipe C and
on the main tap A being turned on will light the gas in the burner D, when the tap E
may be shut off.
The description of Fig. 1 will practically apply to Fig. 2, which represents!a
"Douglass" argand burner with chimney, enclosed in a glass lantern.
Figs. 3 and 4 do not represent any special forms of regenerative lamps, but are
given to show how my invention may be applied to lamps of this class.
In Fig. 3 the gas supply pipe B is brought down the centre of the lamp and the main
tap A is situated at the top. In Fig. 4 the gas pipe B passes outside the lamp, so that
in the former case the lighting tube is longer than in the latter, as the said tube C must
necessarily be inserted in the main pipe B before the main tap A. The action of my
apparatus in this case is precisely similar to that shewn in Figs. 1 and 2.
In the interlocking device shewn in Fig. 5 an arm F is fitted on the end of the plug
of the main tap A, and an arm H is fitted on the end of the plug of the small tap E.
The arm His provided with a spring catch J, which when the taps are both closed,
as shewn in the drawing, locks the main tap and prevents it being opened until the
opening of the small tap E turns the arm H with its catch J in the direction of the
arrow clear of the arm F. When it is desired to close the main tap A, the end of
the arm F pushes aside the spring catch J, into the position shewn in the dotted lines,
in passing, and is then locked by the said catch as before. The spring of the catch is
weak, so that the catch will give without affecting the plug of the tap E, and stops
are provided to the plugs of both taps, so that they can only turn à quarter of a
revolution in the proper direction.
My invention is specially valuable for lighting burners of the regenerative or other
classes which require enclosing in bowls or lanterns, whether for use indoors or out,
as it enables such lamps to be readily and safely ignited without opening the said
bowls or lanterns on the one hand, and avoids the use of a constantly burning
bye-pass on the other hand.
I am aware that it has heretofore been proposed to employ a perforated tube for
the purpose of lighting gas burners in street lamps and I therefore make no claim
to the use in itself of such a perforated tube.

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 :-
(1). The combination with a gas burner, of a perforated or slit tube C inserted in
the gas supply pipe B before the main tap A and provided with a small independent
tap E for the purpose of igniting the said gas burner, substantially as herein described
and shewn with reference to Figs. 1. 2. 3 and 4 of the accompanying drawings.
(2). The combination with the igniting device set forth in the previous claim of an
arrangement for producing a "Bunsen" Hame in the said igniting device, substantially
as herein set forth.
(3). The combination with the taps A and E of the igniting devices set forth in the
previous claims, of an interlocking arrangement, substantially as and for the purpose
herein described and shewn with reference to Fig. 5 of the accompanying drawings.
Dated this Twenty first day of June 1887.