Electric Illuminating Apparatus.
Year: 1899

page_text: Date of Application, 10th Feb, 1899-Accepted, 15th Apr., 1899
COMPLETE SPECIFICATION.
Electric Illuminating Apparatus.
I, SIGMUND BAUER, II Rothe Sterngasse 13, Vienna, Austria, 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:
This invention relates to an electric illuminating apparatus, the illuminating
devices (glow lamp) of which are fed by a current which is supplied by a dynamo
machine that is set in motion, and the excess of current of which is sent into an
electric accumulator, which latter is capable by itself of feeding the illuminating
devices for a certain length of time when the vehicle is moving slowly or is stopped.
The distribution of current is effected for this purpose either by means of a switch
of known construction, or by means of a special arrangement of accumulator con-
nections which constitutes an essential part of the present invention and which
has for object to replace this switch and to produce a steady burning of the lamps.
Figure 1 of the accompanying drawings illustrates by way of example in side
elevation a bicycle provided with an illuminating apparatus of this kind
Figure 2 is a cross section taken along the line of Figure 1, and showing
a part of the illuminating apparatus on a larger scale.
Figure 3 illustrates a diagram of the connections of the illuminating apparatus
in which an electric accumulator provided with an intermediate pole and having
a steadying resistance connected therewith, is inserted in the circuit of the current.
Figure 4 shows the internal construction of an accumulator of this kind.
Figure 5 shows the arrangement of a dynamo machine which is duiven by a
spring motor and is situated in a small box which may form a part of any
suitable lamp
As will be seen from Figures 1 and 2, the devices which are employed for feeding
the glow lamp a (which is fixed in the usual manner to the front head of the
bicycle frame) and also the devices of the illuminating apparatus that serve for
distributing the current are enclosed in a small box 6 which may be arranged at
any desired place, preferably as shewn, inside the hind-wheel fork c. In this small
box there is enclosed a small dynamo machine d whose armature is driven by means
of the gear wheels 4, 3, 2. 1, from a shaft e which extends through the side walls.
of the small box and is provided at each end outside of the latter with a cord
pulley Each of the cord pulleys is connected by means of a cord f¹ with a second
small cord pulley f2, the rotary shaft f³ of which is mounted in two arms g that
On this shaft there is fixed a rubber
are fixed to the underside of the small box
roller which, in the position of the small box as shewn in Figures 1 and 2, bears
upon the pneumatic tyre k of the hind wheel, and is therefore actuated by friction
when the hind wheel is 'rotated, so that by means of the described motion-trans-
mitting gear the dynamo machine d is set in motion and supplies current
In order to enable the dynamo machine to be stopped, the small box b is
mounted adjustably within the hind wheel fork e in the longitudinal direction of
the latter, so that the rubber roller h can be removed from the pneumatic tyre k.

page_text: This motion can be effected by means of nuts m which are screwed upon screw
bolts m' that are fixed on the small box and which bear against arms that
are rigidly fixed to the bicycle frame. Between these arms n and the top wall of
the small box there are arranged springs n' which press the small box b, and
consequently also the rubber roller h, against or towards the, pneumatic, tyre, and
thus serve to moderate the action of the shocks exerted upon the box. In the
box there is further arranged the accumulator o which serves to store up electrical
energy and which, as hereinafter described, is capable of supplying alone the
lamp or the lamps a for a certain length of time. The, conducting wires may be
led either through the top tube u of the frame of the bicycle, or along the outside
of the same. Also the accumulator may be fixed outside of the box on the same,
or it may be arranged at any other part of the frame of the bicycle The motion-
transmitting parts (cord pulleys and cords) which are situated outside of the box
may be covered by a sheet metal guard For the purpose of obtaining a perfectly
steady burning of the lamps, which is necessary, for example, in illuminating the
inside of vehicles, it is of advantage to provide the accumulator with a positive or
negative intermediate pole w In the present case, a positive intermediate pole is
provided, which is connected by the lead 5 through a switch 6 to the similar
(positive) pole of the dynamo machine d, whose negative pole is connected by
the lead 7 to the negative (or main) pole 8 of the accumulator o. The inter-
mediate pole w is electrically connected inside the accumulator with the similar
(or positive) main pole 9 of the same by means of the bridge picce 10 This main
pole 9 is connected by the lead 11 through a steadying resistance 12 and a cut out
switch 13 with the illuminating devices a, and is connected by means of the return
lead 14 to the return lead 7 of the dynamo machine d The switches 6 and 13
may be operated by hand But, the switch 6 which is situated in the current
circuit of the dynamo machine d may however also be closed and opened automa-
tically in the well known way according as the dynamo machine (which is driven
from any moving part of the vehicle through the medium of gear wheels and
motion transmitting parts) is in motion or is at rest.
The
But when the invention is to be applied to a stationary illuminating installation,
or when the apparatus is to be applied to lamps, then for the purpose of driving
the dynamo machine there is preferably employed, as shown in Figure 5, a spring
motor 15 which is adapted to be wound up by means of a crank, and whose motion
is transmitted by means of suitable gearing 16 to the desired extent to the dynamo
machine The spring motor 13, the gearing and the motion transmitting parts,
and also the dynamo machine, and if required, also the accumulator, are arranged,
in a similar manner as in the arrangement shown in Figure 2, in a small box b
which may form the foot or the body of the lamp or other part of the same.
accumulator may also be arranged separately in the upper part of the lamp; whilst
the other parts of the illuminating apparatus may be arranged in the stand or foot
of the lamp It is also obvious that the box might be arranged on a bicycle or
on any other vehicle in the same manner as in the arrangement shewn in Figure 2.
I shall now proceed to describe the mode of operation of the illuminating
apparatus provided with a three-pole accumulator of the kind described, and I
shall describe the course of the current more fully. During the operation of the
dynamo machine its current flows through the lead 5, and the intermediate
pole w,
into the accumulator o, through the connecting bridge 10, the positive (+)
pole 9 of the accumulator, through the steadying resistance 12, and lead 11, into
the lamps a, and from the latter through the leads 14 and 7 to the dynamo machine.
When the speed is low, or when the dynamo machine is at rest, the current supplied
by the accumulator o flows from the positive (+) pole 9 of the accumulator through
the resistance 12, and lead 11 to the illuminating devices a, and from these through
the leads 14 and 7 back to the negative (-) pole 8 of the accumulator The back
discharge of the accumulator into the dynamo machine d is prevented by turning
off the switch
f
In the case of lamps, it is advisable to also lead the' current of the dynamo
↓
+

page_text: machine (which is driven by a spring motor) through a steadying resistance direct
into the lamps.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that wha
I claim is:-
1. An electrical illuminating apparatus, the illuminating devices (glow lamps a)
of which are fed by a current which is supplied by a dynamo machine d which
is set in motion and which is connected to the similar poles of an accumulator o;
the said dynamo machine serving to feed the lamps a and the accumulator when
the speed is high, whilst at a low speed or during a stoppage the accumulator o is
capable, either entirely alone or in combination with the dynamo machine, of
feeding the lamps.
2. In an electric illuminating apparatus of the construction specified in Claim 1,
an accumulator o which, in addition to the usual main poles 8 and 9 that are
connected through a steadying resistance 12 to the lamps a, is also provided with a
positive or negative intermediate pole w which is connected to the similar main
pole in the interior of the accumulator by means of a conducting bridge 10 and
which, like the dissimilar main pole (8) of the accumulator is connected to the
corresponding similar pole of the dynamo machine
3. A form of construction of the electrical illuminating apparatus specified in
Claim 1, characterized by the fact that the current-supplying parts & and o are
arranged in an elastically fixed small box b, and the transmission of the motion
from one of the wheels of a vehicle to the dynamo machine d is effected by means
of a friction pulley or roller h which is arranged to be capable of being lifted off
from the said wheel k of the vehicle for the purpose of stopping the transmission
of the movement.
4. An electrical illuminating apparatus for stationary installations or lamps
of all kinds, characterized by the fact that a spring motor 15, which drives the
dynamo machine d by means of suitable gearing 16, is arranged in a small box b
which is capable of receiving the dynamo machine and the motion-transmitting
parts, and also if necessary an accumulator o, and which is enclosed in the foot
or in the upper part of the lamp, or which may itself form the said part of the
lamp.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., 13, Temple Street, Birmingham,
and 25, Cross Street, Manchester, Agents.