IMPROVEMENTS IN GAS LIGHT APPARATUS
Year: 1874

page_text: PROVISIONAL SPECIFICATION left by Oscar Sicbert at the Office
of the Commissioners of Patents, with his Petition, on the 19th
February 1874.
I, OSCAR SIEBERT, of the City and State of New York, United States
of America, now of No. 8, Southampton Buildings, London, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN GAS LIGHT
APPARATUS," to be as follows:-
My Invention relates to apparatus for increasing the steadiness and
brightness of the flame of a gas burner for regulating and economizing
the consumption of gas, and for preventing the production of smoke
therefrom.
The said Invention relates first to the construction of a device for
regulating the supply of gas to the burner. This device consists of a
conical pointed plug or valve fitted into the tube in which the burner is
secured. The interior of the said tube has a screw thread, and the said
plug or valve has a corresponding thread so that it may be screwed up
and down in the said tube to adjust it nearer to or farther from the
burner. The said plug is hollow and its lower end is open, its upper or
conical end being closed; above its screwed portion the said plug has a
circular channel which communicates by four small holes with the
interior of the plug. The said tube is screwed on the pipe bracket or

page_text: other fitting in place of the ordinary burner or burner tube. The said
plug or valve admits the gas to the burner through the said holes in four
different directions, the regulation of the flame is effected by adjusting
the said conical pointed plug or valve until the proper size of flame is
obtained, and when this is done the plug will require no further adjust-
ment. This improved regulator may be applied to any gas burner, cither
with or without a chimney, and will only permit the passage of the
exact quantity of gas required for giving a clear and bright light, thereby
effecting a great economy of gas.
A globe or chimney of any kind may be used with my improved.
apparatus.
In instances where the light is subjected to draughts or currents of
air I place below the globe a disc or saucer of opal glass or other
suitable material slightly larger than the aperture at the bottom of the
said globe, a space being left between the latter and the said disc
through which the air enters in such a manner that no external
agitation of the atmosphere will affect the steadiness or purity of the
flame.
I place over the top of the globe a reflector of opal glass with its
under or reflecting surface concave, and which has a diameter equal or
nearly so to that of the aperture in the top of the globe. This reflector
also serves as a smoke arrestor. I place a similar but smaller reflector
and smoke arrestor over the chimneys or tubes of argand burners. The
said reflectors are secured upon the globes or chimneys by clips of iron,
brass, or other suitable metal curved in the direction of their length to
give them clasticity and facility of adjustment, and also made concavo-
convex in transverse section; they are formed at both ends with spring
jaws whereby they are securely attached to the globe and reflector, and
readily and conveniently detached and removed therefrom at any time.
I place over the globe a shade constructed of thin corrugated metal.
The inside of this shade is enameled or painted white or otherwise
finished to give it a good reflecting surface. Its outside may be plain or
ornamented in any appropriate manner.