The Jackson standard. [volume] (Jackson C.H., Ohio) 1847-1888, 1883-01-18
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DAVIS MACKLEY, ESQ, Jackson, O.
New YORK, Dec. Is, 1882.

&c. BRIGGs, B. Mgr.
DAVIS MACKLEY, ESQ, Jackson, O.
New YORK, Dec. IS, 1882.
Davis Mackley, ESD:
DEAR SIR: Your favor of 8th re-
ceived. The Edison Electric Light is
used to a great extent in dwellings
and offices. The arc light is used to
some extent in this way, but princi-
pally for street illumination. For
the incandescent light write to Edison
Electric Light Co., IS Fifth Ave-,
n. Y. For arc light write to Parker
Electric Light Co., Little Falls. N. Y.
Respectfully yours, MUM & Co.
Jhe Journal forwarded our letter to
the Edison Light Co., New York,
when they opened up a correspon-
dence with US, and sent US large
amount Of printed matter, for which
we will now only make room for the
following:
The incandescent is a small, soft,
steady light. Of the brightness Of an
ordinary gas jet of the best quality,
and is especial ly adapted for domestic
and industrial purposes.
The Edison Lamp gives out but lit
tie heat Qess than one-hfteenth as
much as gas) may be grasped by the
naked hand without inconvenience, is
absolutely free from odor and poison
GUS or noxious gases, and neither heats
nor vitiates the surrounding atmos-
pher. The most delicate Of fabrics
are not scorched or injured by being
wrapped around the lamp when burn
ing at its normal intensity
The lamp does not explode, and even
, if the glass is broken by accident, the
carbon is instantly consumed and the
light at once goes out harmlessly.
Besides being unequalled for domes-
tic and general illumination, the light
is especially adapted to the workshop
For the desk and workbench it is su-
perior to any other artificial light, in
asmuch as by inverting the lamp, its
whole light may be thrown on the
work in hand, in any required position
, whatever. .
The light, although bright and
, clear, is not injurious to the eyes, ever
! if used close to them. Indeed it il
E found in practice that weak eyes, pre-.
! viously injured by gas, may use the
light with impunity.
There is no danger to life, health
! or person. in the current generated by
! any Of the Edison dynamos. Th'
!. electric current is so feeble that th'
,, wires at any part Of the system, ant
. even at the poles of the generator it
:. self, may be grasped by the naked
hand without the slightest effect; il
fact, the current is scarcely percepti
BILE to the touch.
:. Besides the safety from injury t.
the person, another prominent featur
s of the Edison system is its freedom
2 from danger of fire. This is secure'
e by means of a small automatic devic
r invented by Mr.. Edison, called tn
e "Cut-out" or ''Safety-catch") whicl
|, may be compared to an overflow pip
r in a water system, or to a safety valv
b on a steam boiler.
r The economy Of the Edison incan
v descent light, as compared with gas
t is beyond question, no matter wheth
i er the gas is obtained through the or
), dinary distribution system, as in cities
q or is manufactured on the premises o
t the consumer by portable gas ma
t chine. In estimating on this subject
5 the intensity of light is an importan
: element to be considered, as the illu
minating power Of gas in different 10
. calities varies. The average 5 foo
n gas burner does not, even in best ga
q companies, give a light Of over 1
candle power, so, in order to obtail
$ the same amount Of light as that Civ
q en- by the Edison standard lamp Il
? candle power), 7-foot gas burne
y must be used. Even then, the Who'll
~ light of the gas burner cannot be util
lied on a work b-nch or desk, becaus
:, it can neither be inverted nor entirel.
L backed up by shade, while, ON tn
T other hand, the whole 16 candle pow
= er of the Edison lamp is effective, in
asmuch as it may be inverted, or 9th
. erwise directed to any desired spot.
. Assuming that the desired hors
power needed to drive the dynamo i
:, already present, the hourly cost o
= running 80 Edison lamps of Is can
! die power each is as follows:
horse power g pounds of coal per hour
per horse power at S. per ton) )......... 06
I Ilepreeiation on MACHINE at per cent. Oh
E i iir%i BRUSHES, Oil, &c: 6s
Total running expenses per hour. 1s cents
The above lamps would replace the
| same number of gas jets, the hourly
: cost of which is as follows: II
60 gas jets each burning feet of gas per
hour, or total of 420 feet 81 per 1000, 81 cent
This shows a saving, by the use o:
the Edison LIGHT of R5 cents ner houl