The Wheeling daily intelligencer. [volume] (Wheeling, W. Va.) 1865-1903, 1878-06-27
The Electric IIght-Iis Advanta'
ges In Manufactures.

ges In Manufactures.
London Journal Of Applied Science.
The application Of electricity for light.
ing seems at last to have been accom-.
plished. For some time the magnetic.
electric machines Of Gramme have been
used in the lighting Of certain factories
10 Paris aud It's neighborhood, and the
number goes on increasing, and where
the ceilings are lofty and direct light ap'
plicable the success Is perfect. Among
the establishments so lighted are those
Of Call & Co., engineers; Lautier, Lam
ounier & Co., the makers oil the Gramme
machine, both Of Paris; and Thomas d
Powell, OF Rouen, and at the Fiyes. Lille
works, The system Of direct lighting.
however Ia not applicable to weaving asd
spinning sheds, the ceilings Of which are
too low; The light is much too intense,
and everything which impedes it-shaits,
diving bands, and machines-createa In
tense black shadows. The problem was
10 get a light which, like that Of the sun,
allows objects to be seen by reflection; and
tbis has been achieved by throwing the
light by means Of hyperbolic reflector
on the whi,ened ceilings and VALE, when
the machinery Is sufficiently illuminated
by reflection TO cause everything to be
scen as on bright sunny day, while the
eve Is not iatigued, nothing Is painfully
brilliant, and nothing obscure. A wool
anjnninv factory At DAours, in the De-
rartmeht Of the Somme, covers an.area
Of 4730 square ieet : tits a ground Hoor,
l40 feet long, thirty.fve feet wide. and
the ceilingis twelve feet from the hoor;
This ceiling Is composed Of planks and
faiths, and "a, like the walls, lime.washed.
The electric light ia supplied by two
lamps, placed at height Of ak feet from
he floor, and thrown upon the ceiling BY
means Of conical reasctors, which pre-
vent the diffusion Of any direct light
whatever. The DETECTED Light is reflected
and diffnsed In sll directions from the
ceiling and the walls, and without shad'
ows. The light Ia. much superior TO that
given by ordinary gas; II 10 soft and at
once local and general in all parts Of the
work. The foreman, seated at bis deskr
has plenty Of light for working a. biz
books, and sees all over the building
mus the grand intensity Of electric light
n M once utilized and moderated. The
machinery is at one end Of the factory,
and Is driven by belt from a water
wheel. ~
This mode Of lighting has been in use
for more than year; the cost oil the mo.
live power IL almost nil; each lamp con
sumes from three to four inches oil the
carbon point per hour, and the cost u
tbis being one cent per inch, the cost OIL
the two lamps Is I'd per hour: The sew
snty pasjiets by which the factory was
fnrmerly lighted cost IL Sd per hour. We
donld enumerate several other factories
where the light has been used succesltul'
II for more than year, but will only sum
IN acme OF lie advantages. Besides Id
oheapneSs the effect upon color is an i'm
poItant confederation; II 10 found with
he electric light even the darkest color
Arc worked Al night quite "a easily as In
the day time. Another important
confederation Is that Of fire; AZ
sIectrie lamp replaces from fifty
10 seventy jeti Of gas; they require nc
hand Tampa OF matches TO light them,-a
most important consideration; and last
" the lamps are completely inelosed In
glass lanterns. So important are thest
iacts that insurance companies hayeotier
ID 10 insure factories lighted BY electric
ity at lower rates than usual. The cleo
tric light requires but little preparation
The Necessary machines and lampe can b
set up In few hours; all that Ia requir
Cd IL 10 keep the grease. boxes Of th'
maehine full, and 70 clean the latte
daily. The electric light does not atiec
the temperature Of the factory, and con
Sequently does not dry the air, neithel
does 1t consume any oxygen nor chang
Tie atmosphere with carbonie acid ant
other products Of combustion, The fac