The Stourbridge Observer, Cradley Heath, Halesowen & District Chronicle.
Stourbridge, West Midlands, England, 1881-08-13 00:00:00

The EDISON LIGHT at the ELECTRICAL
EXHIBITION.

The Paris Correspondent of the Standard in describing
the preparations for the Electrical Exhibition in the french
capital, says :

The Edison exhibit will be one of very great interest,
and the two salons which contain it will prove very
attractive. They are fitted up as picture galleries, and
will contain a complete illustration of his system of
district lighting in competition with gas, as well
as representations of all his inventions and dis-
coveries during the past thirteen years. .For the
present the Eve hundred small incandescent lights
in these rooms will have to be maintained by four
small Edison dynamo-electric machines, driven by
a hired engine of thirty-five horse-power. The
luminosities of these lamps are about the equivalents
of ordinary gas jets—namely, of ten and of sixteen
candle power. There will further be in each of the
salons some three-light brass pendants, and in the
centre of each room a sixty-light Parisian crystal
chandelier. The Edison display will be, however,
far more interesting when his large combined
boiler of one hundrtd and fifty horse-power steam-
engine and generator all on one bed plate has
arrived. The seven hundred lamps which he
has put upon the Grand Es2alier will then be
lit, and the whole of his lamps in the Palace
will be driven from it as one complete district.
Besides this, connection will be made with five
hundred lamps in the restaurant, which will be also
worked by this powerful machine. In one of the
external gardens five hundred other lamps will be con-
nected, and yet again five hundred more in a theatre
two thousand feet across the Champs Elys4es. Of the
details of this combined machine we may say that
its total weight is seventeen tons complete, of
which the magnets weigh six to seven tons, and
the armature, which will make three hundred and
fifty revolutions per;minute, will weigh two and
a half tons. Its capacity of illuminating power
is equal to maintaining one thousand two hundred of
the sixteen candle power lamps, or two thousand four
hundred of the ten candle power lamps. It is said
that thirty of these compound machines are being
manufactured in the Edison Electric Light Works at
New York, and will be delivered by Christmas. It
is further stated that their factories can turn out two
thousand lamps and fifteen hundred feet of street
connections per day, and that larger works, are in
progress. _ - • -

The correspondent adds :—The Siemens electrical
tramway is fast becoming a verity. The over-head.
conduetor is erected for the whole distance between
the Place de la Concord, where there is a neat Swiss
chalet sort of station, into the eastern entrance
of the Palace. It consists of a C shaped copper
tube supported on posts. Within the tube there
will be a moveable copper disc, from which a
connecting wire will be attached to an ordinary
tramway carriage and connected with a Siemens
small dynamo-machine within it, and by which the
wheels of the tram-car will be driven. The current is
supplied by a fixed Siemens generator of larger
dimensions. The purpose of this arrangement is for
the working of ordinary street tramways and cars, as
they exist, by the addition of electrical appliances.