Richmond dispatch. [volume] (Richmond, Va.) 1884-1903, 1899-10-26

seen far out 10 sea. The whole mecAan-
ism is worked by clOck-WOrk, the Ight
flashing out for forty seconds ana lhe
sirens roar being heard for the remdlnihs
twenty seconds of the minute. Inc
mechanism is regulated by cloCk-woi ..
and once wound the signal does us N0ih
Tor II week without attention, otnel tI-N
q visit every other day or so 10 on To"
machinery ana make sDie ilal every
thing is in order. The inventor oI lh1
apparatus, which is regarded as an anso-
lutte preyeuter OF accidents through 'N'l
runuine ON tho rocks il 1t fog or through
the mistakins OF signal hs"ls' '7 ''''
A. O.. Trudeau, of Ottawa.
The massive apparatus is tine outcome
of "a long line of patient and perseNer-
inc Recommendation. and bears on
tbe face of il and in It's hugcLcss strong
evidence of the inventors confidence
i'm the utility of what he had I'D
view. Every user OF the teiepnons ia
familiar with the behavior vi the pAoNe
fl IL happens 20 be "Om the nook anu
the distant ringer is put do mouoh. IAe
disphragm of tho phone IS SUBJECTED 10
series OF alternating current lnlpu4'se-'
and mauifests the effect OF these ~ 6N-
ing ont "a Gathering noise not unlike the
automatic electric DlzzeIs some lIlle7
rsad iu Mace of The ordinary FlpfttoiF
cali hall This observed behavior Ol tue
,rrone under such conditions has beeh
obviously enough suggestive of the con-
et,pctlon of a cali ~ tenn comprising
fust such parts, but in practice lhe rue"
has NOT taken hold hitherto, pelh"p7
because of the different clemens eol"s
~ make No the system not having beeh
given proper shape TO hll the require
ments. .t,f. f.1..
Starting his experiments win ti's 4U a,
the inventor OF the great siren a''@'Hr
o. dynamo to SOUND pIoo".ri -,-,
wien "a monster megaphOne 20 scatter Di7
,.ibrations through the atmosphere he
tnrned on the current and found that ne
Gould produce a roar that would MAKE
the king OF the forest creep 10 ms l-!i
81, omripht By an increase or decrease
of the ut.lsations of the dynamo IL was
found that the roaring could De its"-
ieted so as TO suit conditions VI Me1thei
or location and an that remained mon
was I'D construct The apparatus acc0iu'i5
to requirements. .. ,r,..,
Tno one lust made has tOg-horns h1tesn
feet i'm length. When the complete c'I b
rent Is turned on the terrific blast liia'
bursts from the gaping mouths o4 '..o
irwin mcgaphones can De heaIu "Dofo ~
uois. of a gale. and Oh noueI@'0ls
stormy day u liN-NN-" Nt'r
thoroughly that no skipper could ram 10
hear ITS terrific voice at SAFE ois1@.ise
rom danger. BY The addition OF me
electric fash-light TO give "atn'ns ~
ewes where ears prove deaf the pro-
iroitv of vessel TO the rocks Wal oo
disclosed in any kind OF weather an" I'D
darkness as well as daylight
Had one of these danger signals zen. usyi'
roaring out ID warning from the Nlai''.
Rocks there would have been no
s,randing of the great liner Paris ior
tb. voice Of the electric siren must nave
been heard miles away from the stony
enot where the steamship ran aground
In faet il l. easy TO cite cases Immune
rahI4 where marint disasters coala have
mem ayerted had this automatic elec''.c
warning been giving notice TO sh'ppers
thst dancer and death awaited unless
the course were changed.
The Dominion Government lntenos 10
use the new danger signals ON points
of rocks whore bell huoys and hydfashc
whlstling buoys are inadequate because
Of their comparatively feeble sounds be-
ing drowned in the noise al waters on
neiehbonng shoals and wave-Deatsh
headlands, on rocky islands where hs"'-