An Improved Lighting Apparatus for Gas Lamps.
Year: 1888

page_text: Date of Application, .29th Sept., 1888
Complete Specification Left, 28th June, 1889-Accepted, 3rd Aug,
1889
PROVISIONAL SPECIFICATION.
An Improved Lighting Apparatus for Gas Lamps.
We, ROBERT BARKOWSKI, mechanician, of 7 Angel Road, Hammersmith, and
CHARLES JOHN DORMER ANDREWS, for and on behalf of the Schülke Gas Lamp Company,
Limited, Secretary, of No. 11 Queen Victoria Street, in the City of London, do
hereby declare the nature of this invention to be as follows :-
Our invention relates to the external lighting of lamps which are surrounded by a
closed case, such as regenerative gas lamps, and consists of an improved construction
whereby the said lamp can be externally lighted with an ordinary torch, thus
obviating the use of an auxiliary light which must always be kept burning, and
preventing the necessity of removing the glass or other covering of the lamp. It
is essentially applicable to the case of regenerative lamps placed in street lanterns or
where the lamp cannot easily be reached by hand.
Our device is specially designed for use with what is known as the Schülke
regenerative gas lamp, but may equally well be employed in the case of such lamps
as are surrounded tightly with an outer casing, such as to cause a stream of gas to
issue from a small hole pierced in the outer casing when the gas is turned on to the
burner or burners of the lamp.
To carry our invention into effect we pierce a small hole in the higher part of this
exterior casing and over the hole we fasten a small tongue of metal standing out
from the casing, and of such a shape as to cause any issuing gas to accumulate under
the tongue. This tongue is pierced with small holes in order to prevent an accumu-
lation of soot in the neighbourhood of the hole. We find that under these conditions,
if a flame be caused to play in the immediate vicinity of the hole, the lighted gas will
flash back to the burner and ignite it.
To avoid violent explosion only a small quantity of gas should be turned on to the
burner.
2
In order to adapt the method to lighting street lamps, by means of the ordinary
torch, we employ a cock of the following description.
When the handle is in a first position, no gas passes through at all. In a second
position of the handle (preferably a vertical position) a small quantity of gas passes
through to the burners of the lamp while a fuller stream passes through to a nozzle,
into which is fastened a pipe or auxiliary jet, which is led outside the case up to such
a position that a flame, issuing from its point, is caused to strike just underneath the
above mentioned tongue on the exterior of the case of the lamp. In a third position
of the handle, the gas is cut-off from this pipe while it is turned on full to the
burners of the lamp. The action of the lighting of the lamp becomes therefore as
follows:
-
The handle is turned to the second or vertical position, the torch is then used to
light the gas at the point of the auxiliary external jet, the burners in the lamp are
at once ignited through the aforesaid tongued orifice, and it is only necessary to turn
the handle to the third position to extinguish the gas from the said auxiliary jet and
to turn on the gas full to the burners.
To extinguish the lamp it is only necessary to turn the handle from the third to
the first position. Adjusting screws are fixed in suitable positions to regulate the
amount of gas passing to the burners and to the auxiliary jet when the handle is in
the vertical position.
=
Dated this 29th day of September 1888

page_text: COMPLETE SPECIFICATION.
An Improved Lighting Apparatus for Gas Lamps.
We, ROBERT BARKOWSKI, mechanician of 7 Angel Road Hammersmith and
CHARLES JOHN DORMER ANDREWS for and on behalf of the Schülke Gas Lamp
Company Limited Secretary of 11 Queen Victoria Street in the City of 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:—
Our invention relates to the external lighting of lamps, which are surrounded by
a closed case such as regenerative gas lamps, and consists of an improved construction
whereby the said lamp can be externally lighted with an ordinary torch, thus
obviating the use of an auxiliary light which must always he kept burning and
preventing the necessity of removing the glass or other covering of the lamp. It is
essentially applicable to the case of regenerative lamps placed in street lanterns or
where the lamp cannot easily be reached by hand.
Our device is specially designed for use with what is known as the Schülke
regenerative gas lamps, but may equally well be employed in the case of such lamps
'as aro surrounded tightly with an outer casing, such as to cause a stream of gas to
issue from a small hole pierced in the outer casing when the gas is turned on to the
burner or burners of the lamp.
To carry our invention into effect, wo pierce a small hole in the higher part of this
exterior casing and over the hole we fasten a small tongue of metal standing out
from the casing, and of such a shape as to cause any issuing gas to accumulate under
the tongue. This tongue is pierced with small holes in order to prevent an accumu-
lation of soot in the neighbourhood of the hole. We find that under these conditions,
if a flame be caused to play in the immediate vicinity of the hole, the lighted gas
will flash back to the burner and ignite it.
To avoid violent explosion only a small quantity of gas should be turned on to the
burner.
In order to adapt the method to lighting street lamps by means of the ordinary
torch, we employ a cock of the following description.
When the handle is in a first position, no gas passes through it at all. In a second
position of the handle (preferably a vertical position) a small quantity of gas passes
through to the burner of the lamp while a fuller stream passes through to a nozzle
into which is fastened a pipe or auxiliary jet, which is led outside the case up to such
a position that a flame, issuing from its point is caused to strike just underneath
the above-mentioned tongue on the exterior of the case of the lamp. In a third
position of the handle the gas is cut off from this pipe, while it is turned on full to
the burners of the lamp. The action of the lighting of the lamp becomes therefore
'as follows:-
The handle is turned to. the second or vertical position, the torch is then used to
light the gas at the point of the auxiliary external jet, the burners in the lamp are
at once ignited through the aforesaid tongued orifice, and it is only necessary to turn
the handle to the third position to extinguish the gas from the said auxiliary jet and
to turn on the gas full to the burners.
To extinguish the lamp it is only necessary to turn the handle from the third
to the first position. Adjusting screws are fixed in suitable positions to regulate the
amount of gas passing to the burners and to the auxiliary jet when the handle is in
the vertical position.
The means by which we preferably carry our invention into effect will be readily
understood by reference to the drawings.
Fig. 1 represents a sectional elevation of a lamp of the above mentioned type
mounted in a lantern the upper part of the chimney not being shewn.
A is a casing which covers in the body of the lamp and therefore when gas is
turne on to the burners G it passes upwards and into the lower part of the

page_text: chimney. Hero a hole of about + inch diameter is made in the side of the chimney and
above this hole is fastened a metal tongue B slightly concave downwards and perforated
with holes to prevent accumulation of soot from the flame issuing at the nozzle C of
the pipe F.
The gas from the lamp burners issues from the small hole in the chimney and
accumulates under the tongue B in sufficient quantity to cause it to be ignited by
the flame from C and the gas so ignited flashes back to the burners G and lights
them.
If a suitable quantity of gas passes through the burners G there is an absence of
explosion.
We therefore provide the cock with two set screws D and E tho former of which
regulates the length of flame issuing at C and the latter regulates the quantity of
gas passing through the burners at the moment of ignition. The cock is shewn in
Figure 1 in the position when the gas is flowing both through the pipe F and to the
burners G.
The handle of the cock would then be preferably in a vertical position and down
wards as shewn in Figure 3.
When the handle of the cock is turned to the left no gas passes either to the burners
or the pipe F. When it is turned to the right no gas can pass to the pipe F but a
full streain passes to the burners G by the through-way.
Figures 4 & 5 shew in greater detail the positions when the cock is fully turned
off and on respectively.
Figure 2 shows in plan the form of opening H hinged at K which we preferably
adopt in place of the usual door in street lanterns.
It is of sheet metal and so placed as to allow of the usual lighting torch being
easily pushed up to the point C to ignite the gas without the danger of it. coming in
contact with the glass globe of the lamp.
The cock may also be provided with a hyepass as shewn in figure 3 so that when
the handle is turned to the left the flames are not entirely extinguished. The
quantity of gas passing by the byepass is regulated by the screw M by which also
the gas may be entirely cut off when necessary.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare what we
claim is,
1. The combination of a regenerative gas lamp with an external lighting jet
substantially as described and for the purposes set forth.
2. In a regenerative lamp the employment of a projecting tongue above a hole
pierced in the upper part of the external case substantially as described and for the
purposes set forth.
3. The combination of a regenerative gas lamp with a cock substantially as
described and for the purposes set forth.
4. In a lantern the combination of a regenerative gas lamp with an external
lighting jet and cock substantially as described and for the purposes sot forth.
חד
DADIZOWSK