The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1901-04-28
snRIKIlsa nolslf.y : LII. 81

A STnREFSf&G MOI elf y M e. eiec trica,
~ field. which. in its present exper-
mental form. has ob tained the. in
dorsement OF nflrnerots ssoinps tent sa,sss
Yerts, is ready to enter the domain q
Practical business. Mr.. L. g; Woolley
Of Springfield. o., has invented and
uatented a device for using the mag
net TO 90 the. work OF the electrical
battery Cor telesraphfng and sigha5ins
Is al its ORA riiI.iless 54qss ( fflIsension
looks lalraost asst 10 IS hiIfgiy sLTfDls and
econcTq5 II 4nd 4ftsi b. clain1 of tRDr-
oHsn e isseney which slsvde1tf eleetgical
ensinerls y ssiEh stanainS C9nceas IL
~ IS afterwards fully and satisfac
torily borne out. then it may well he
tnat the enthusiasm os its propriet 81 9
in claiming 20 have the first areslt.
tNentieth century invention, is web
The eizcflscz tss9zfaph ofstae4 pres
ent day srfesuppbSss @the E8tttss- aarie3
sbe battery is its weakest as well as
Its relatively, .utast costly point. To
ftif-ilnatef TIE Ia 81 5 tlls6 et DO the
$40 WORK haettns 70 simphty teleg-
rApny sys'syires -, prsctlsf'iiye rs dow
esi, EXPRESSION ard 70 6I,eE new INA
yBst fields for it. This Is what Mr.
MoolHx elaiHls. 20. bstTe done.
lie modern eiectro-naagreti fele-
gi,itI =. son p5iseS "a eireytF. circuit
net An electrO-n1agnes is q piece OF
tnetaI-Ts1ich IS onlyatA iapcrarily Z ma -
net that IS, while within the sphere
81 an electric elfEept. For this ths
battery Mr. Wcclley takes a perma-
1ent mognet- permanent magnet
VIII .1ducs current Of electricity IN
an adjacent Wire when a piece of
metal. called an arnaatsre, is made 70
reyolve between the poles Of the mag
n fff
tfical current fard tof its electr5-rno-
tive fofce is capable 0f being ras-ed
- very high des gree. for IL IS limited
only BY the strength OF The magnet. !
the veiooity Of the arDlatuTe AMI The
nVmoet Of turns Of wire IN the slelis,
that IS. tie spiral iT,so which the con
duct0r IS coiupac5fy cOiied Tor the most
ccuventent and s1fectit-e rnethsd OF
pass.fz within IL ma gnetic feIdI All
fais vas kEo~n in the first taif Of tbs
lsst eenturs. A. a matter Of fact, fh-
the year 1857 Dr. Werner Slerlens.
while considering how the indHzsag
effect SCI t3e Bgaguet could b ni3sl
thQro 4gh y i4siH aesl. had already de1
tisedf the. e3sineirifal afmature, which
s. orActiceliy thai now adopted ~ 5fr.
FE0ollfyss 10y sthis arrap cement the
colts sfre mace 70 rey0lye Ia TIE nfset T
o0wesfsl part II The magnetic field, i
u - ssgpiast form this arpeture
censists - an iron oy-linder. GROUND
uhich insulated cappfF wire IS p'oiiaa
ioDayitudinaily. a n1imber Of pesfna-
atnt ntagEets are placed parallel to .
eacii otber and cut ont 1t their noith
and south poles. so that the cylsndrtca5
space By di,1s Arrangement the cons
are exposed to tire most powerful ir1ssS-
netic eject, ard. in BE lansuaKe ~
1sef asfaaT. stney cut the greatest nu4.- j
her OF H4eS4s)f force. in TIE most power
81 TART OF the efsssfrie field
lt4sfth fhis device 2leneHs ard his cos
S 0I'kefs I4aNlse- e15ea vore<J toscon ;
sfrs1ct = system OF telegTa ply Thefr
effefts hOWeveFc g = moi mPet WIN
App fica bfffty only t. very marrow I'm
IS The current &c 7erated "a the coils
cfo und The arHatUre IS ~ the aster
10tin2 ksnsl Eiescri ped Is electric ian
pulses Of alternately positgTs and mega