The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1897-01-03

o. Bss. q. frter-~ase ~s onss-ved ira:
tss~xra c1-c figures were oezrg mace ca
rae ekosa4s ~ CTR party. ard <Asas ce-eatn
sy--nos9 Of 1a@,n signing their cornrnuzi-
ca eforx with -sz.reya!s instead Of names
we're answering xbose inquiries. ! NAY 80
wsss s0z down n xx<s place re kufo~nnss4oa
] gathered as % ~he NOE OF ssEusErs by
esozc-fzsh an: ~ eSssx new r,-zncts.
pswe-<zl esecer@c rays are. ry means OF
tenses. orCugszt 70 thin pencils o. intense
l.gez. A s.agsA one of t-ess q then pro-
3@ez~G Upward agae-ss q aloud a co1Sres-
Ilug ssuerer y ere path % tie beam cf
tgus Interrupts & e. vr.-l. 80 thai Il may
be made 20 saow long or saorf flashes on
,ns c1osxos. WORDS are thus Illuminated
IN the sky. and made 20 shine 81 et3e zenith
rAp4z Ees51y, uns-l an answering re1eot4on -
chys2 ns1 TIE Grief 2se Of Tnzs cloud
tsle4-apszy -. OF course. on the s%a- BE-
txe~a salps ard .fzyss-n.rs" e&s t1sy are
s<ss called. notwithstanding that <ney Go
nos use ssear) Or Cor elr boats Convsr-
sztton mas % csrr.st en- II rn@s way be-
tween vessels mary niles epart: ard q
massage recstvsc ~ one can Dc transmit
Cd 20 others 30 ma. inquiries and replies
~ al around sfss g2ooe ard 10 remote
paris 81 ocean The system was found
psstuI 81 those lsssr day voyages 20 sae
Up zincs a general exploration OF -ns open
Arcfse sea was effected. X has asa saved
many lives. prevented collisions. ard
caught EEany fugitive criminals. SAILING
veszsss are provided with q water paddle
60 drive the n~cssszry eleotrso generating
mechanism for signaling. when the ship
10 Ia mo-toz.
IN some Of t4s nauca-travslsd SEA re-
gfous another Fnse9oc OF communication is
~ A. =
wgia netallsc g-rs - hang between ths
tips Of two rsasts. and IS connected 20
special elecErsc generating apparatus pro-
dGetBg waves q extreme sharpness and
treai intensity. thai Eo.i0w each other ~
TIE rate ef 100 per second Al electric
stress sfaus proPagatsa &C inanlte e.Saaacs
ID a. moderate distances ggrcng enough 10
be collected BY the metalltze1 SAL u an
Other vessel One ship. for example,
wishes 20 know whether there Is another
wF.hin the area % signalling, Hut out
OF s.x1t The musical note formed by
electric tnducSTe waves is SCI gong, and
by means OF a key Is stopped and start SO
again al via. Other xesss1s ia she AREA
have watchers rslo, a. intervals. listen 20
al sxqusgAsly sens tive Telephone made
selectsvesy sensitive % waves os exactly
TO per second TE1s Is brought about by
q g8nlng fork attachment TO the dla-
phTagun. tuned exactly 10 respond 10 waves
u szlat rate. hance. although the part Of
the waves collected By the SAL Goth -
many million times less than could be
gathered II II were close 70 the signaling
snip. yet ths tuning fork collects success
s4ve waves Until the amplitude Of vibration
~ sufficient % cause aud oilsty. The sgg-
mailing current Is continuous for several
seconds. Then the transmitting vesssl
stops u ard connects rs SAL wigh the res
osrvln. apparatus. 20 listen for return
wave. AsIer the pre- zllnsgy signals have
been exchanged. colyersa --on Il carried on
ln tns usllal way. X !s s.sw, of courss.
oweng % the tins Necessary for the SGc-
cesssvs impulses 20 rise 70 the point Of
audlbilsty; b'lt the rnsrhod is very sccu-
rate and reliable Il all but foggy or rainy
weather.
For foggy weather signaling there 10
stin another ingenious ceyicel' A circular
hole Is cut in she vessel below the water
line. about two feet IN diameter and closed
b. a circular stsei pate or diaphragm
one-s.gesth Of an inch tatcfx. On the inner
SIDE shers Is a thick iron chamber, COM
pletsly closing the space behind the d.a--
phr@ gm. and here Is placed small shr1lis
whistle worked ~ compressed air or steam
and controsianle by a waive or key Aions-
side OF this apparatus Ia another dia-
phragm made Ike the first; but there ex-
tends from thu center OF il a very shor.,
end OF which IS connected 20 a sensitive
diaphragm from which tubes lead 10 10th
ears OF the slgnalgnan. BY an adjustable
attachment this steel wire can be regu-
hated TO great or Jess tension. as violin
string "a: and IL IS tuned 70 respond 30 the
note given out by the Whistles on other
steamers. which are al OF precisely the
same pitch. In fegs, the signalnsn alter
natsly sounds The whistle and listens for a
return. his receiving apparatus not being
responsive 70 any other sound than thai
to w1l.ch q Is tuned-5eyond the ripping
or 1ashing OF water On the sides Of tie
vessel and the movements 90 the propeLiug
shutter machinery, which are continuous.
and do not interfere with the S. gnalrnan's
hearing a periodical musical sound. The
sound waves Of the wd1stle are communi-
Gated 20 the water by The steel diaphrag m
ia front. ana travel thrJsogh the sea just
as Ia air. but much farther, s.nce the con-
duct8vlty OF water for sound Is greater
than that OF ar. one OF the most I'm
portant uses Of this machine on large pas
seuser SHIPS - 10 ascertain ths direction
or approaching vessels with exactnesss
and FOR thss purpose they have two sets Of
eiaphragus on opposite sides OF the ship.
connected teiephonicslly.
sfsli another contrivance Tor preventing
COLLISIONS. or giving nOtsee OF the ns&rness
of icebergs or OF ccrelacts. s-npresses ne.
This - the automatic plot" small
oIEar-sha ped copper vessel some fifteen
feet long. and twenty-four inches at the
greatest diameter. having within 4 an
electric tuozo or which 4rives q screw pro-
pe.ler at is end. From the masthead
a reel passes two Ursula ed wires. which
run from ehe ships dynamo electric engine
down 60 the cigar-Sha ped pilot" 90
watch they are iosned ssae BY SIDE. about
two FEET apart. They nof only carry cleo
tr4cssy 20 The motor % tbs plot. but also
cause the ptlo. 20 move tn harmony wf:h
the steamers course. As socl as q fox
appeal ~. the pilot is launched. and the
current passing % Z through the ws-es
from rsle masthead revolves me motor in
shs Nsls plot craft ard SENDS her shCct-
snx af1eat - she SHIP or steamer II ire
pilot tends 20 vecr from a Er-atg1f Inc
ore OF the wires becomes mora taut than
tie o--ler srd % affects the steering APP
parafus as 70 bring the copper bost back
60 tae T<elas coarse I forgos 70 say rha;
these wires or cables. although having
only ebout the thickness OF knitgsng-
kneezfse. are twisted together from a num-
Der % very fine steel wires; and. as thu
speed OF t21e pssot - greater than the s1lp's
and keeps her abugt half mae ahead Of