Year: 1888

page_text: We, SAMUEL CHANDLER Junior, and JOSIAH CHANDLER, both of Central Works,
Kennington Oval, in the county of Surrey, Gas Engineers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements applicable to argand gas burners and
round wick oil burners, whereby we are enabled to dispense with the usual chimney,
a better light being at the same time obtained.
In carrying out our invention we adapt to the burner a disc or plate of suitable
material such as porcelain and of a diameter larger than the diameter of the burner;
the said disc is fixed at a distance above the burner and may be made adjustable.
The burner is enclosed within an ordinary globe.
By the use of this disc which forms a protector against down draught the flame
from the burner is caused to spread outwards in the form of a trumpet mouth,
and no chimney is required.
Dated the 5th day of Santambar 1888
G. F. REDFERN, & Co.,
4, South Street, Finsbury, London,
Agents for the Applicants.

page_text: We, SAMUEL CHANDLER, Junior, and JOSIAH CHANDLER, both of Central Works,
Kennington Oval, in the County of Surrey, Gas Engineers, 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 improvements applicable to argand gas burners whereby
we are enabled to dispense with the usual chimney, a better light being at the same
time obtained.
In carrying out our invention we adapt to the burner a disc or plate of suitable
material such as porcelain and of a diameter larger than the diameter of the burner j
the said disc is fixed at a distance above the burner and may be made adjustable. The
burner is enclosed within an ordinary globe.
In order to enable our invention to be fully understood, we will proceed to describe
how the same may be carried into practice by reference to the accompanying drawing
in which
Figure 1 is an elevation, and
Figure 2 a vertical section of a lamp constructed with our improvements.
Similar letters in both the figures indicate similar or corresponding parts.
a represents an ordinary argand gas burner.
bis the disc or plate of suitable material such as porcelain and fixed as shown above
the burner a. The diameter of this disc or plate is, as will be seen by reference to
the drawing, greater than the diameter of the burner a.
c is the cone which is usually placed round argand burners.
d is an ordinary globe.
e is a coronet for carrying a dome f
By the use of our disc b, which forms a protector against down draught, the
flanie g from the burner a is caused to spread outwards, as shown in figure 2, in
the form of a trumpet mouth or saucer shape at the top, and no chimney is required
as has hitherto been necessary with argand burners.
The said disc when it has. been heated serves to render the combustion much
more perfect than usual, and a much whiter and more economical flame is obtained
than with an argand burner when a chimney is employed.
In the drawing we have shown our disc or plate as fixed but it will be obvious
that it may be made adjustable.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that what
we claim is :-
(1.) The combination with an argand gas burner, of a disc or plate of suitable

page_text: material and of a diameter larger than that of the burner, as and for the purpose
described.
(2.) A gas lamp having an argand burner provided with a disc or plate of suitable
material and of larger diameter than that of the burner by the use of which the
ordinary chimney is not required, substantially as hereinbeforo described.
(3.) The manufacture and use of the improved gas lamp hereinbefore described and
illustrated in the accompanying drawing.