Evening star. [volume] (Washington, D.C.) 1854-1972, 1884-09-16
Of THE EVENING SrSs

The Franklin Institute Of this city, now In the
year OF its existence NAV he regarded
as successful institution in many ways, noj the
least being It's success In organizing and managing
In lS:i IL conceived the plan OF gem
era exhibition OF industrial arts. carried II into
successful execution and reaped lis reward. fin3n-
rially. in net profit OF $4,000 In several smaller
attempts since then il has met with rroportonate
results. and Its ambition has reached the point
d holdlng an International electrical exhibition,
Tor which capacious buildings have been erected.
extensive preparations made. ami popular sUppns
evoked guarantee II $4,000 10 cover AL cN-
lEnses mas octn made 10y the Weather members
ot the institute in case the receipts from admission
tes should not be- sufficient: on; l am nIouAed 10
the managers that, barring .irtdenfS THIS trti.T-
aztec iund Will not be called U.on al all; ne luii-
cations ara already 80 promising thdJ the alm>-
SION receipts VIII July cover the expenses m u
sttutionS. who may feel ambitious 10 emulate the
example OF the Franklin.
THE SUBJECT or ELECTRICITY
mas subtle hold upon the popular mind Just now,
and Will probably increase in interest IL inventors
and scientists continue 10 present tous such re-
n rkable developments have startled oar crell-
MY ana excited cur wonder IN the short space of
the single decade lust passed. Ten wears alro IL
would hardly have been possible 10 have held an
teclrlcai exhibition Certainty not In the pop
uiar SENSE The telephone had uoJ O,en discovered.
tiecIllc Hghting Was not Thought o. r0pt.yc power
10y electricity was deemed ch lneIlrai and tn,
TRANSMISSION OF one message by telegraph At one
time was supposed. generally. to be the unit and
quite sufficient Tor the demands 81 the times.
Avail yourself Of the oppO iuulty which this LtSt
electrical exhibition i'm America gives Nay 10 see
hande and wonder at The tangible ,Ntiencss II
what mas been Wrought. TO ~ the evening. make
Your entrance At the main door. nay N,UT - cents
dor adults. half price FOR children. G.pl,i; your
ticket, pass through the registering Stylr ana yal
viii find yourself on thu first floor al th,. main rN
lnUltion room. What 90 you see: 4 great croNc,
and food of light bright and as pleasant 10 the
eye as MONDAY. In front and 10 Your right and
lett are the exhibits oI the Edison lights; next
beyond, the United States Electric Light 90. show
Ing the Weston system. occupies large anolrlt
OF floor space: the Brush ca. next, Wa its tGrae-
room house, lighted inside and out. and The
Interpretations system. with It's excellent
features. T. csc four are the principal and compe-
ting lighting exhibitors ana There are a half score
or more OF her syslelnS making less display, hut
each possessing valuable featGEeS. I mention
his electric lighting exhibit TO call attention 10 the
Tact that
LESS THAN THREE YEARS AGO
the success OF incandescent electric lihting was in
doubt. Lecause the lamps could not be used with a
divided current that is you could not light or PX-
tnguish lampin circuit with other lamps with
out affecting the briliianCy OF all the lamps on that
circuit. In The electrical exhibition ia Paris hell
IN 1881 lncandescent lighting 10y electricity could
not he successfully demonstrated Tor this reason
In THIS Philadelphia exhibition You may see SIX
thouSana Reminiscent lamps arr NED In every
style, casting j steady. SOFT and beauti-
lui glow that charms YOU Each exhibitor has
ntted up rooms representing drawing rooms tied
4
ucaily arranged IN beautiful Chandeliers brackets
and stands Tor the table You may turn of any
one or more lights. The others burn on with the
same steady glow lnc8n descent lighting il a sue
cess thus FAR, bEt-tO get II into your houses
there's the rub. Until methods for The accom-
nlishInenJ OF that perfected gas stock will sim
be valuable. But | predict that before auoih'.r
three years have passed such methods viii be
brought TO perfection. Before speak OF the en-
hlblt OF dynaAo5 which supply the currents Tor all
the electric Lighting should mention That There
are Ia the exhibition buildings about i've hundred
arc lamps These, may lay. are everywhere. and
make the Interior as light day. Mt Gas let Is
To be seen anywhere. The atmosphere, c,nS.-
Guehtly is pure and free from the SlliInr heat and
soOty smoke which seems 10 beonr 10 iIat soon In
pass away method OF Illumination The smallest
electric lamp have seen at the exhibition Is about
the size of the half Of ordinary peanut Shell and
couiI oe worn Ia the shirt bosom. II gives ten
candle power light. The largest. or most power
lul light her is on the main tower OF The building
IS /, OF Tour thousand candle power. and casts a
stream OF dazing light that enables YOU To read
ordinary print 4 nile distant.
THE DYNAMO MACHINES.
The current for lighting all the lamps is srpIied
from the dynamo machines, OF which there are
about 100 on exhibition. The largest or these IS
Edl>on'S Jumbo " which Is seven feet hiyh WEIGHS
thirty tons md supplies 1900 amfs OF sixteen .ln
possible without the Dynamo and we are Sftu
obliged to say. and viii perhaps be always obliged
TO say 1t. that tie dynamo IL n useless piece OF
without steam power The steam
power rcToycS the armatureS OF the DYNAMO ma
chine with tremendously rapid revolutions. These
excite tie electric current in the powerful magnets
lf he d. nano. Carefully insulated metallic. con-
luctors or copper convey the current To It's de,t-
nat!on-and you have rs result Hight or mower S
you may have arranged FOR. Ia this part Of the eX-
liblton there is great clatter OF machinery and
rs IN GIT be expected considerable development
Of electrical energy. As the electricity /, safely
conducted 10y the copper wiIes there is not the |
slightest danger TO the person IL you Will have The
good sense ID keep your hands oil the machine |
II you have any regard for the watch which Won |
usually carry in your vest pocket. You viii on TINS
occasion leave 1t IN some safer place ar the pnr-
ricty somehow or other Will b. apt 10 find H. and
you VIII have watch which will not be a watch
because IL Il magnet. Ii SI every matchmaker 1.
who has as ye. earnedhow to demagnatize a watch I
which has had too close an acquaintance with a 4
lively dynamo machine.
The dynames supply not only currents for light
ng. nut fCr power as Wei. Ia one part OF The /
building you VIII find powerful printing pr,,,s
Unnilg off large edition Of a pappr The nlt.SS
PRINTS 1850 impressions an hour and its r.lou- (
ions are made by small dynamo that you could
,ut in q bureau drawer. \ hundred sewing ina
'hlnes are in active operation uriyen 10y similar
power. II Is only necessary To connect small cop
rer wire into screw post Of the dynamo ana you
ave all the power needed In fact, electric mo- .
i've power Is 30 be- one OF The next stems o progress
hat is 20 excite our interest and admiration The
gives Numerous evidences OF TifS. You |
nay see, beside the printing press and sewing ma
hines. a model 81 an electric railway, a mlch.ne 1
or making bricks, an arrangement Tor raising I'M
neESe volumes oil water. all obtaining their power
rom a small electric motor or dN nd;no. which Sc /
,ureS lis rapid revolution from dmultiyr steam /
'agine lou ltti no belts. very little Skating, LO
great boilers, ard no waste OF fuel.
speaking oil Motors. one il impressed Will the alb
enCe from tie exhibition 0f The storage battery |
Duly year ago ii WAS the much talked OF stora %
battery that was destined to do cur house lighting
md 10 run our street ana steam cars and sewing
and 10 utterly annihilte our gae compa-
lies. But the storage battery Is Tot here 10 claim
,lace ana attention Why this Is so can not aIpro-
,riateiy be explained now.
THE TELEPHONE EXHIBIT
S an interesting one. We had supposed there was
tut one telephone company that could lawfully on
rate telephones Bat here are five IN more or less
ctive operation. The first. Of course is the Amer
an Be-! Co. IL makes handsome display. Among
lie curious things IL shows Is fac smile OF tn.
irst telephone which Mr.. Bel made, nd showed 20
few aGnlirlng friends IN the year Isl. ana which
ounteI tie key note TO his fortunes and fame HIS
rtendS thought there might be money IN H. encour-
Qed him and secured themselves 10y patented
ightS There is also On exhibition the telephone
Inhibited TO few scientists at the cea.ennill ex-
tbtion In 1876 which secured 70 Mr. Bel strong
roof In favor Of priority Of invention. The whole
election is exceedingly interesting, as f. gives the
andS Of MIR. Bell TO its present Development by the
ompany. The Instruments which make this his
DRY are all On exhibition.
The Penn overland company. which dses the
eephone patented oy lr. NJ. L. Baxter. formerly of
he surgeon General Office. has an exhibit and an !
Xchange In operation. They clam 10 have six
hundred subscribers ia their city exchange
The Drlwbaugh telephone exhibit = cot open to |
he public on account OF the necessity II having
he instruments at the court during the nnal arcI-
Jew York city on the ED day II This month Both
!des express great confidence in their success In
his suit. wish l could Tell your readers which
gay IL will 60. wouldn't tel them Il 1 knew !
nder The present circumstaHces-the information
Would be TOO valuable. DO not believe any human
elng can tel what the result VIII be. Ii IL goes In