The Roanoke times. [volume] (Roanoke, Va.) 1890-1895, 1891-01-30
IN THE ELECTRICAL WORLD.

IN THE ELECTRICAL WORLD.
China has 1870 telegraph stations.
Tho system is mainly controlled by tho
government, and the operators arc all
Daney.
Tho first electric street railway In
Chicago began to run its oars recently
over about throe and ono-half miles Of
track.
-Qucon Victoria has at last announced
that sho is decidedly averso to having
the electric light introduced into Wind
sor Castle.
AN English Company has mado o
| proposal to the Legislature of the island
of Nassau to lay cable to tho coast OF
Florida il an annual subsidy Is granted
it.
"A large mining company has ar
ranged for tho introduction OF tho cloc-
trio light into its pits in place of allow
Ing each miner to carry his own lamp,
as was heretofore the custom. Tho
light will be placed along tho roads, tho
lamps being flftoen yards apart.
Some practical improvements in
diving apparatus have been effected by
NJ Abort Marcolhacy, French ongi-
Moor. Instead OF tho heavy electric
hand lamp hitherto used by divers he
aflixcs light but powerful glow lamp
on the top OF tho holmot so that the
divers hands are both at all times free
for work.
"A patent has boon granted for an
electrical drill for oil wells The do
vico consists Of series OF motors in tan
dem, connected In such way as to mako
ono motor. The design has boon to get
the power within six-inch diameter,
so that the ontire mechanism, which
much semblos common boiler, can
DO lowered In tho we'll and the power
can DO applied at the bottom. The drill
bits arc firmly fastened on the rod, which
Is worked rapidly in and out of cylin-
der, after tho manner Of piston-rod
Its crafty ing to the largo number of
American electricians who have watch
ed, with confidence in its evontful ro-
suit, the hugo Ferrani schomo at Dept
ford, England, for supplying current at
exceedingly high voltages. to know that
the operation of tho Forreni mains has
passed the experimental stage. Thirty
miles Of mains have boon laid down. and
out of 5000 joints only fifteen have boon
found to DO faulty. Several OF thcso
have boon duo to no electrical trouble,
but to tho carelessness of the men in
forgetting to remove the cotton waste
from the socket end. There has been
but one single fault from tho inner to
the outer conductor and this was due to
moisture.-N. Y. Sun.
Electric Power describes n new sys-
tenn Of reporting baseball and othor
games by means OF an ingenious eloc-
trical apparatus This devico is intond-
ed not only to Indicate tho progress of
distant games, but to enlighten tho
spectators on many points on which they
are liable to be momen tarily in doubt.
All issues upon which the baseball en-
thusiast expcnds such intense solicitudo
can now be clearly and reliably record
cd. and nil anxiety and uncertainty can
be removed by glance at tho exhibi-
ton board placed in sight Of the whole
concourse OF spectators, tho indicators
on which arc electrically controlled,
and operated by an experienced person
located close to the diamond.
The submarine system OF the world
embodics leo. orc nautical miles Of able,
OF which various government adminis-
trations own and operate 10. 524 miles,
WHAic 1iIO IcnhlHQcr - III tho MINUS Oh
private companies. The total cost OF
those cables is estimated to be $500, OOo,-
600. Tho Eastern Telegraph Company.
which owns the cable between England
and India. operates 81. 500 miles. with a
far east extension OF 49, 5s miles more.
Africa is completely surrounded by sub
marine cables, with an occasional branch
to the coast, the last link having been
finished to Cape Town only last year.
To enoircle the dark continents 1900
miles OF cable was required, and a dozen
or more companies, backed and aided by
tho British, French. Spanish and Portu-
guese Governments, participated in tho
work. The North Atlantic Is spannod
by II cablos, NIL laid since 1870, and
footing up an aggregate OF over $4,000
miles between North America and
Europe
CHEAP RESTAURANTS.