The Hawaiian star. [volume] (Honolulu [Oahu]) 1893-1912, 1902-06-13
WIRELESS
IN OPERATION
TRIAL HEATS WINGED OFF AT
wAIALAE THIS
MORNING.
MANY PROMINENT BUSINESS MEN
PRESENT
s. $. Dickinson of the Mackay Com
pany an Interested Spectator-Mes-
-sages Sent to Maui and Molokai.

The pnrpose of a trip of prominent
merchants, intimately connected with
plantation and shipping interests to
Waialae this morning under the tute-
lage of f. j. Cross and Clinton j. Hut
chins of the Inter-Island telegraph
Company, was fully carried out this
morning by successful messages being
sent back and forth between this island
and Maui, by way of Mololai and La
mai various members of the party tele-
graphing to managers of different plan
tatlOns and receiving replies. :. s
Dickinson, chief engineer for the Mac
kay cable was an interester member of
the party, having stated that if the
wireless system was in successful
shape, the Mackay cable system would
not be extended to inter-island COM
municat ton
The business men, who are already
Interested in the system to the extent
Of shares or a subsidy from the plan
tation interests, were well satisfied
with results and considered the system
valuable, f.. NJ. SwanZy stated that the
sending through of a message some lit
tie time since when the mill at Laupa-
hoehoe broke down would have had an
equivalent value to his firm of the en-
tire annual subsidy promised the COM
pany on successful demonstration.
Two rigs with double teams conveyed
the invited guests to the station at
Waialae, where the 17j foot pole carries
the sensitive wire into the air in readi-
ness to receive messages frOC across
the channels. Manager f. j. Cross
drove out +. a. Schaefer, j. b. Castle
s. S. Dickinson, f. NJ. Swanzy ana w
M. Giffard; Clinton j. Hutchins driving
c. M. Cooke, H. A. Isenberg, Elmer e.
Paxton and representatives from the
afternoon papers. W. II. Hoogs drove
out separately and Il. Faxon Bishop
met the party at the station, where
Miss Brady, one of the expert opera
| tors of the system was In charge
The apparatus, consisting of a reCeiv-
ing machine and it's attendant self-rec-
order and a sending apparatus was
! s, ouped with the 9S cell local battery
/ on the table. Communication was al
ready esta ablished when the party ar
| rived, the operator on Maui asking if
| Mr.. Cross wished to send any mes
| sages. Before explaining briefly the
system, H. A. Isenberg at the invita-
ton of Mr.. Cross handed the following
message to the operator: "Barckhau-
sen, Lahaina. How much sugar on
hand? Isenberg." This was quickly
clicked off, the sparks flying between
| the two current breaker balls of the
sending apparatus. The tape was at
| tached to the receiving machine and
| the message duplicated itself in Morse
| characters on the tape as MOlokai sent
IL to Lanai, and Lanai to it's destina-
| ton.
While waiting until Mr.. Barckhau-
sen could be reached and delivered his
answer Manager Cross explained the
| general working of the apparatus to
the gentlemen around the table, several
| np NHrnn al 1KT Tod in
the system, and asked pertinent ques-
tions. Mr.. Cross first explained the
working of his new Coherers which
! have supplied the place of the Marconi
patent Briefly the coherers consists of
| two electrodes with wires attached en-
| closed in vacuum in narrow glass
lube a quarter of an inch actual dia-
meter. Between the electrodes are
some minute nickel filings. These nick
el particles cohere forming a magnetic
chain Decohesion is brought about by
the shock of a tiny hammer tapping the
glass tube at intervals corresponding to
the message sent and breaking the CO.
hesion of the filings with the shock.
Transmission by means of a relay and
local battery sends the intermittent
shocks through the registering machine
on to the tape. German silver filings
were furnished by the vendor at first
and the working of the coherers delay
ed until the error was ascertained and
nickel substituted. The life of the CO.
herers vary. The filings become smooth
by friction and the magnetic chain
made imperfect. There is no difficulty
in making the coheTers and supply OF
them are always on hand. The average
life seems to be about month, al
though some only last two or three
days.
AS explained by Mr.. Cross the lumint-
ferrous ether, the force of the transmits
sion. is of such nature as TO permeate
any and everything. 1t travels with a
velocity of 10000 miles per second, es-
timated. shock of this ether at the
sending end will permeate the whole
receiving wire simultaneously as a
stone cast into the water disturbs the
surrounding molecules to the farthest
drop or touch to jelly sets the whole
mass quivering. Electricity seems tC
be the only thing that disturbs this
ether, and the shock Is sent from reg
ular induction coil. The wire runs from
, the pole tip to the ground interrupted
by the filings of the coherer which sc
. reduce the resistance that a local cur
rent can work through 1t; the cohcrers
I controlling the local battery. The lOca
battery Is needed as a relay to the
ethereal wave, the latter being insutii-
cient In itself, There Is no actual com
munication between currents, the enc
being accomplished by induction to ar
, opposing current
The local system is not synclrOnized
there being no other system in force tC
interfere. Were a wireless system tC
Fannings Island or other local systems
established synchronization would bt
necessary to prevent confusion. Syn
chronization as accomplished by S. q
Brown, rival of Marconis, Is gained
~ means of a diaphragm set at a GER
ain tension. If the ethereal shock