Year: 1888

page_text: Date of Application, 4th Jan., 1888
Specification Accepted, 10th Feb., 1888
Merchant, all of No. 101, Königgrätzer Strasse, in the City of Berlin, German
Empire.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.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 Civil
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 invention relates to improvements in regenerative gas lamps for illuminating
purposes, the object of which is to produce a perfect combustion of the gas and thus
prevent all smoking of the lamp, the contamination of the air by the imperfectly
consumed gas, loss of gas and the consequently increased expense compared with the
illuminating effect produced by the present improved lamp.
The invention relates not only to the improvement of the parts constituting the
body of the lamp and the air feed to the flame, but also to the burner itself.
One of the greatest drawbacks in the regenerative gas lamps at present in use, for
instance, the Wenham, Bower, Butzki-Westphal and others, is that as soon as the
feed of gas to the burner is increased by an increase of pressure in the tubes, the air
supply proves insufficient to produce perfect combustion, the flame burns yellow, a
large percentage of gas passes the lamp unconsumed,-blacks the ceiling and
contaminates the air in the apartment.
Figure 1 is a vertical section of the improved lamp with double air feed to the

page_text: flame. Figure 2 is a horizontal section on the line 3-4 in Figure 1. Figure 3
represents the vertical section of a modified form with single air feed. Figure 4 is a
horizontal section of Figure 3 on the line 1-2. Figure 5 is a vertical section of the
improved burner.
C,
In order to create a perfect consumption of the gas fed to the lamp even when the
ordinary supply is exceeded the walls of a conical casting a which serves as air heating
arrangement for leading heated air to the flame is provided with a number of per-
forations s, s¹, etc., so as to lead a portion of the air supply into the space or chamber A
above the deflector ring d. This conical casting a forms an air heating chamber
Figure 3, and is at its lower end provided with a flange a' for spreading the flame or
a tube bis inserted in the casting a and surrounding the gas supply pipe g so as to
divide the air heating chamber into two parts, the inner compartment e¹ leading the
heated air onto the conical ring e immediately above the burner, whilst the air from
the outer compartment c is led-more towards the periphery of the flame and also
further up into the chamber A. In ordinary cases where the gas supply is not
excessive the flame will reach somewhat beyond the deflector d but should an excess
of gas be inadvertently fed to the lamp, the flame can play up into the chamber A
where so much air is present that the surplus gas is consumed. The lower edge of
the tube b is cast, upset or otherwise constructed that a flange b' is provided in order
to secure a correct feed of air to tho flame. A deflector rib a' can also be cast onto
or with the casting a to check the too rapid flow of any excess of gas and force the
same to mingle with the heated air issuing from the perforations s, s¹ etc., or this
rib a² can be omitted so that the free flow of the gas is not hindered.
The upper part of the lamp is closed with the exception of the tubular ways f for
leading off the hot products so that air flowing in between the lower edge of the bell-
like or other sheathing g' and the globe holder h will pass into the chamber i around
the tubes then through the orifices k into the chamber c or chambers c c¹ and from
thence to the flame and into the space A. The burners usually employed are pro-
vided with fine openings at their periphery but such burners have not been found
suited to the improved lamp and for this reason the improved burner has been
constructed.
Another disadvantage of most of the burners of regenerative gas lamps is, that it
requires a skilled workman to remove and replace the same. The burner is of simple
construction, can be readily removed and replaced. The burner / is made from soap
stone or other appropriate material and is provided with screw-threads for being
screwed into the supply pipe, said burner being also provided with a flange l³, for
receiving the deflecting conical ring e which is firmly held in place between this
said flange, and the edge of the supply pipe 9 when the burner is screwed home.
As will be evident from the accompanying drawing the lower part 1, of the burner
forms a kind of gas chamber the same being usually about three times the diameter
of the supply pipe although my correspondents by no means restrict themselves to
these dimensions as they can be varied according to requirements.
g
The burner.
perforations are directed upwards so that the gas from the supply pipe will first
enter the chamber 1, and then flow vertically or nearly so through the perforations
and impinge against the conical ring deflector e and thus be equally distributed over
the entire surface of the same before the gas mixes with the heated air from the
heating device.
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 correspondents I declare that what I claim is :-
1. In regenerative gas lamps, the arrangement and use of the casting a with rib a
and perforations ss1, the cylinder & with flange ' conical deflector e and burner 1,
substantially as and for the purpose set forth in the foregoing specification and shown
in the accompanying drawing.
2. In regenerative gas lamps, the arrangement and use of the part a with or
without the rib a² and flange a¹ and provided with appropriate perforations in

page_text: combination with the deflector ring 1, substantially as and for the purpose set forth in
the foregoing specification and shown in the accompanying drawing.
3. In regenerative gas lamps the use of the improved air heating arrangement or
any mere modification of the same, substantially as and for the purpose set forth in the
foregoing specification and shown in the accompanying drawing.
4. In regenerative gas lamps the use of the improved burner 1, constructed and
operating substantially as set forth in the foregoing specification and shown in the
accompanying drawings.

page_text: the City of Dermit, German
Empire.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.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. Civil
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 invention relates to improvements in regenerative gas lamps for illuminating
purposes, the object of which is to produce a perfect combustion of the gas and thus
prevent all smoking of the lamp, the contamination of the air by the imperfectly
consumed gas, loss of gas and the consequently increased expense compared with the
illuminating effect produced by the present improved lamp.
The invention relates not only to the improvement of the parts constituting the
body of the lamp and the air feed to the flame, but also to the burner itself.
One of the greatest drawbacks in the regenerative gas lamps at present in use, for
instance, the Wenham, Bower, Butzki-Westphal and others, is that as soon as the
feed of gas to the burner is increased by an increase of pressure in the tubes, the air
supply proves insufficient, to produce perfect combustion, the flame burns yellow, a
large percentage of gas passes the lamp unconsumed,-blacks the ceiling and
contaminates the air in the apartment.
Figure 1 is a vertical section of the improved lamp with double air feed to the

page_text: flame. Figure 2 is a horizontal section on the line 3-4 in Figure 1. Figure
represents the vertical section of a modified form with single air feed. Figure 4 is a
horizontal section of Figure 3 on the line 1-2. Figure 5 is a vertical section of the
improved burner.
In order to create a perfect consumption of the gas fed to the lamp even when the
ordinary supply is exceeded the walls of a conical casting a which serves as air heating
arrangement for leading heated air to the flame is provided with a number of per-
forations s, s¹, etc., so as to lead a portion of the air supply into the space or chamber A
above the deflector ring d. This conical casting a forms an air heating chamber c,
Figure 3, and is at its lower end provided with a flange a¹ for spreading the flame or
a tube is inserted in the casting a and surrounding the gas supply pipe g so as to
divide the air heating chamber into two parts, the inner compartment c¹ leading the
heated air onto the conical ring e immediately above the burner, whilst the air from
the outer compartment is led more towards the periphery of the flame and also
further up into the chamber A. In ordinary cases where the gas supply is not
excessive the flame will reach somewhat beyond the deflector d but should an excess
of gas be inadvertently fed to the lamp, the flame can play up into the chamber A
where so much air is present that the surplus gas is consumed. The lower edge of
the tube is cast, upset or otherwise constructed that a flange b' is provided in order
to secure a correct feed of air to the flame. A deflector rib a² can also be cast onto
or with the casting a to check the too rapid flow of any excess of gas and force the
same to mingle with the heated air issuing from the perforations s¹ etc., or this
rib a can be omitted so that the free flow of the gas is not hindered.
The upper part of the lamp is closed with the exception of the tubular ways for
leading off the hot products so that air flowing in between the lower edge of the bell-
like or other sheathing g' and the globe holder h will pass into the chamber around
the tubes then through the orifices & into the chamber c or chambers c c¹ and from
thence to the flame and into the space A. The burners usually employed are pro-
vided with fine openings at their periphery but such burners have not been found
suited to the improved lamp and for this reason the improved burner has been
constructed.
Another disadvantage of most of the burners of regenerative gas lamps is, that it
requires a skilled workman to remove and replace the same. The burner is of simple
construction, can be readily removed and replaced. The burner is made from soap
stone or other appropriate material and is provided with screw-threads for being
screwed into the supply pipe, said burner being also provided with a flange 13, for
receiving the deflecting conical ring e which is firmly held in place between this
said flange, and the edge of the supply pipe g when the burner is screwed home.
As will be evident from the accompanying drawing the lower part 1, of the burner
forms a kind of gas chamber the same being usually about three times the diameter
of the supply pipe although my correspondents by no means restrict themselves to
these dimensions as they can be varied according to requirements. The burner
perforations are directed upwards so that the gas from the supply pipe will first
enter the chamber , and then flow vertically or nearly so through the perforations P
and impinge against the conical ring deflector e and thus be equally distributed over
the entire surface of the same before the gas mixes with the heated air from the
heating device.
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 correspondents I declare that I make no claim for anything
set forth in Thomas' Patents Nos. 10,834 of 1884-883 of 1885 and 579 of 1887
but that what I claim is :-
S
1. In regenerative gas lamps, the arrangement and use of the casting a with rib a
and perforations ss, the cylinder 6 with flange b' conical deflector e and burner,
substantially as and for the purpose set forth in the foregoing specification and shown
in the accompanying drawing.

page_text: 2. In regenerative gas lamps, the arrangement and use of the part a with or
without the rib a² and flange a' and provided with appropriate perforations in
combination with the deflector ring 1, substantially as and for the purpose set forth in
the foregoing specification and shown in the accompanying drawing.
3. In regenerative gas lamps the use of the improved air heating arrangement or
any mere modification of the same, substantially as and for the purpose set forth in the
foregoing specification and shown in the accompanying drawing.
4. In regenerative gas lamps the use of the improved burner 1, constructed and
operating substantially as set forth in the foregoing specification and shown in the
accompanying drawings.
Dithin 2nd 1o. of Th1000
WM. P. THOMPSON & Co.,
Agents for the Applicants.