Year: 1888

page_text: A communication from abroad by EMANUEL STEIN, of the City of Philadelphia, in
the United States of America, Manufacturer.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex Fellow of the Institute of Patent Agents do hereby declare the nature of
this invention to be as follows:
This invention relates to that class of lamps in which the gas is burned at the base of
the burner, and wherein the heat of the products of combustion from the flame is
imparted to the air supply and to the combustible gas, for increasing the illuminating
power of the flame. The nature of the invention consists in certain improvements in
the construction of the burner, and novel combinations of the parts as hereinafter
more fully described.
The burner proper is made of metal or steatite, the bottom being turned or formed
into a downwardly extending projection of curvilinear form, the exterior surface of
which may
be described as a cone with inwardly curved surface between apex and
base. This uniformly curved exterior surface has a tendency to divide, deflect, and
equalize the flow of air upon the gas jets. The burner is provided with a central
chamber the upper part of which is threaded to fit a corresponding thread upon the
lower extremity of the gas pipe.
A series of holes or bores are pierced or cut in the burner and are arranged in a
horizontal plane radially about said chamber in such a manner as to form independent
conduits from the said chamber to the exterior periphery of the burner through which
the gas issues in a horizontal direction beneath a perforated metal plate. Between
the holes or bores forming the horizontal gas conduits from the central chamber, are
cut or formed a series of radial slits which constitute the air ducts or conduits from a
central downward air chamber to the underside of the burner. Said air chamber may
be conveniently formed of a loose metal ring adapted to slip down the burner nearly
to the gas conduits, thus closing the upper part of the outer faces of the before

page_text: mentioned radial slits or air ducts, and virtually turning them into tubes. These air
conduits not only supply air at the sides and beneath the jets of flame at the point of
combustion, but also serve to cool those parts of the burner which are almost directly
in contact with the flame.
Air is supplied along the whole upper surface of the annular horizontal sheet of
flame by the before referred to perforated distributing and regulating plate which is
arranged in a plane parallel or nearly parallel to the direction of the flame, and not
only equalizes and regulates the flow of air but supplies it in the requisite quantity to
the exact points where it is required.
A deflector plate is so arranged that an annular passage is formed on its exterior
through which the air passes from an aperture communicating with the outer
atmosphere downward into the globe.
The regenerator in which the air is heated is formed with three passages. This is
surmounted by a cone top the lower portion of which does not quite touch the top
plate. The outer walls of the three air heating passages also form passages through
which the escaping products of combustion flow to the chimney. The cone top rests
upon a circular rim of the regenerator, the purpose of which is to separate the currents
of inflowing air by the passages of the regenerator from the products of combustion
which are deflected by the conical surface of the top against the gas pipe to the
chimney.
The globe or glass is provided with an outer annular flange which rests upon a
corresponding inner flange on the globe holder. The globe holder is hinged to the
bottom of the top plate and secured in position by a turn clamp.
The perforated air equalizing and distributing plate is situated at the lower end of
a sheet metal cylinder which surrounded by a ring or sheathing of asbestos. This
cylinder forms the lower part of the air heating passages or regenerator.
Dated this 19th day of March 1888.

page_text: Improvements in Regenerative Gas Lamps.
A communication from abroad by EMANUEL STEIN, of the City of Philadelphia, in
the United States of America, Manufacturer.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex Fellow of the Institute of Patent Agents, 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 relates to that class of lamps in which the gas is burned at the base
of the burner, and wherein the heat of the products of combustion from the flame is
imparted to the air supply, and to the combustible gas, for increasing the illuminating
power of the flame. The nature of the invention consists in certain improvements in
the construction of the burner, and novel combinations of the parts as hereinafter
more fully described.
In the accompanying drawings, Figure 1 is a vertical section of the improved burner
and lamp.
Figure 2 is a plan view with the top cap removed.
Figure 3 is a side view of the burner on an enlarged scale, and-
Figure 4 is a plan of the burner taken on the line --- of Figure 3.
The burner proper is made of metal or steatito A, the bottom being turned or
formed into a downwardly extending projection B of the curvilinear form shown, the
exterior surface of which may be described as a cone with inwardly curved surface
between apex and base. This uniformly curved exterior surface has a tendency to
divide, deflect, and equalize, the flow of air upon the gas jets. The burner is provided
with a chamber C the upper part of which is threaded to fit a corresponding thread
upon the lower extremity of gas pipe D.
A series of holes or bores a are pierced or cut in the burner and are arranged in a
horizontal plane radially about the chamber C in such a manner as to form inde-
pendent conduits from the said chamber to the exterior periphery of the burner
through which the gas issues in a horizontal direction beneath the perforated metal
plate E. Between the holes or bores a forming the horizontal gas conduits from the
central chamber, are cut or formed a series of radial slits b which constitute the air
ducts or conduits from the central downward air passage F to the underside of the
burner., Chamber F may be conveniently formed of a loose metal ring f adapted to
slip down the burner nearly to the gas conduits a, a, thus closing the upper part of
the outer faces of the radial slits band virtually turning them into tubes. These air
conduits not only supply air at the sides and beneath the jets of flame at the point of
combustion, but also serve to cool those parts of the burner which are almost directly
in contact with the flame.

page_text: "
Air is supplied along the whole upper surface of the annular horizontal sheet of
flame by the perforated distributing and regulating plate E, which is arranged in a
plane parallel or nearly parallel to the direction of the flame, and not only equalizes
and regulates the flow of air but supplies it in the requisite quantity to the exact points
where it is required.
The deflector plate G is so arranged that an annular passage is formed on its
exterior through which the air passes from the aperture g, communicating with the
outer atmosphere, downward into the globe, as indicated by arrows.
The regenerator in which the air is heated is shown as formed of 3 passages H.
This is surmounted by a cone top I, the lower portion of which does not quite touch
the top plate J. The outer walls of the passages H form the passages K through
which the escaping products of combustion flow to the chimney L. The cone top I
rests upon the circular rim of the regenerator, so as to separate the currents of
inflowing air by passages H from the products of combustion which are deflected by
the conical surface I against the gas pipe D to the chimney L.
The globe is provided with an outer annular flange which rests upon a corresponding
inner flange on the globe holder. The globe holder is hinged to the bottom of the top
plate and secured in position by a turn clamp.
The perforated air equalizing and distributing plate E is situated at the lower end
of the sheet metal cylinder M which is surrounded by a ring or sheathing of asbestos
or other suitable heat resisting material.
Having now particularly described and ascertained the nature of the said inven-
tion, 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 :-
1st. In a regenerative lamp in which the heat of the products of combustion from
the flame is imparted to the air and gas supply, a burner provided with a central
chamber, horizontal gas conduits leading from the central chamber, and slits or air
conduits through which the air passes downward from the central air supply passage
between each of the said gas conduits, as and for the purposes described.
2nd. In a regenerative lamp, a burner provided with horizontal radial gas conduits
and air passages through which the air passes downward between each of the said gas
conduits, in combination with a perforated air distributing plate, as and for tlie
purposes described.
3rd. In a regenerative lamp, a burner provided with horizontal radial gas conduits,
leading from a central chamber, slits or air conduits through which the air passes
downward from the central air supply passage between each of the said gas conduits
and a downwardly extending projection of a curvilinear form, for dividing and
equalizing the flow of air upon the gas jets..
Dated this 19th day of December 1888.