Year: 1886

page_text: Appo
I, HERMANN SÜss of Marburg in the Province of Hesse, Empire of Germany,
Manufacturer, 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 refers to the construction of a magnesium lamp giving a constant
and regular luminous effect. The magnesium lamps hitherto constructed had the
great inconvenience, that the flame burnt very irregularly, and that the lighting
power fluctuated considerably. This inconvenience resulted partly from the large
quantity of residues of combustion, deposited on the combustion place and con-
sequently preventing the wire from advancing uniformly, or the ashes produced by
the combustion wire not removed, but remained during a long time in contact
with the metallic band and caused at least by their weight an accelerated advance-
ment of the wire. The hereinafter described construction has for its purpose to
remedy these inconveniences. The invention is shown in the accompanying
drawings:
--
Figure 1 is a side view of the lamp.
Figure 2 a top view,
Figure 3 a front view and the
Figures 4, 5 and 6 are details of the construction.
;
The magnesium band is wound on a bobbin a in one, two, three or more strips,
the one near the other, and conducted between two pairs of rollers b, c and d, f,
which are put in motion by means of a clockwork g. The band is regularly moved
forward by these rollers, and passes then over a table h at the further edge of
which it is burnt. This table or burner is provided with an envelope which
surrounds tightly the burner, and can be moved to and fro upon the same.
In this
to and fro motion the fore edge of the envelope passes once over the fore-edge of
the burner and the other time into the plate k supporting the reflector of the lamp.
The deposit produced by the combustion is thus removed from the burner and the
envelope at the same time. The to-and-fro motion is caused by the clockwork, by
means of the levers l, m, n and o or otherwise.
The ashes formed by the combustion do not detach themselves immediately from
the metal but cohere sufficiently, so that they hang down as a fillet, which passes
between three rollers p q r put in motion by the clock-work and rotating in the

page_text: direction indicated by the arrows of the Figure 1, and arrives then at the cutting
device 8, t, where it is cut into small pieces which fall down one after the other.
The above mentioned inconvenience, that the ashes by their weight cause an
accelerated advancement of the magnesium band and consequently an accelerated
consumption is then entirely obviated. The two parts of the cutting device s
and tin cutting off the fillet come in contact with each other only for a moment;
a stagnation or a tearing off of the fillet is thus prevented.
The cutting device is moved by means of the clock-work in the following way.
On the rotating shaft u is a curved disc v. Upon this disc slides a roll w which is
fixed to one end of a bent lever x, 3. On the other end is pivoted a rod z, which
has its point of application on a crank A sitting with the arm 8 of the cutting
device on the same axle. The other part t of the cutting device is moved from
this shaft, by means of toothed wheels. The roll w is pressed by means of a spiral
spring B against the disc v. As the recesses in the disc v are arcs, which have the
same radius as the roll w, the reciprocal position of the parts of the cutting
device is continuously changed, and the edges touch each other only for a moment.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is: =
The above described improvements in magnesium lamps in which the light is
produced by the combustion of a magnesium band, which improvements are
characterized :-
"
1.) By a contrivance for removing the residue of combustion from the burner h
consisting of an envelope i surrounding the burner and put in motion by a clock-
work so that the envelope slides to and fro upon the burner and strips thus the
residues from the burner and from itself (see Figures 1, 2, 3, 4 and 5).
2.) By a device for cutting off the fillet or fillets of ashes consisting of two
parts & and t turning round two shafts and put in motion by a clockwork by means
of the action of a curved disc upon a lever system, so that the said parts are
alternately opened and closed.
3.) The application of three rollers p, q and r put in rotation by the clock-work
in the direction indicated by the arrows of the figure 1 and guiding the fillet or
fillets of ashes from the burner to the cutting device.