The Hawaiian star. [volume] (Honolulu [Oahu]) 1893-1912, 1903-02-13
MARCONI'S SUIT
AGAINST CROSS
SAN FRANCISCO LAW LIBRARY
VOLUME AS AN ENHIBIT-EX-
PERT TESTIMONY.

A volume specially brought here from
the San Francisco law library as an
exhibit for the jury, testimony to es-
tablish the value of English money, a
harmed dissertation on the intricacies
of wireless telegraphy and constant
technical sparling between the lawyers,
are the main features of the case of
fhe Marconi Wireless Telegraph Com
pany VS. II. j. Cross, which is being
heard before Judge Robinson and a
Jury in the circuit court. The case
was filed a couple of years ago and
has already occupied lot of time in
court, but it promises to last a good
deal longer. Marconi is suing for s. 900
alleged to be due as the last half of Sill
600 Tor installing the wireless system
here and 500 pounds sterling for the
first years rental.
The law library book from San Fran
cisco was sent for to establish the
terms of the Companies act of Great
Britain, of 1862. There was no copy
OF the book in the Islands, and it was
impossible to prove the inCorpora tion of
the wireless company without some ad-
missions which the defense refused to
make. The book is The Statutes of
the United Kingdom of Great Britain
and Ireland" published in '62 and is
known as the Twenty-fifth and Twenty
sixth Victoria. James H. Deerng Ii
brarian of the San Francisco library,
made affidavit to its being the book it
purpOrts to be, and ii was allowed to go
| in as plaintiffs exhibit G.
Il. l. Spalding of Spreckels' bank was
called as an expert to tell the value of
British coins, the defense requiring
that valuations be proved. The wit
ness testified to he usual standards,
| which most of the jurors knew of their
own knowledge.
In the testimony of Arthur Gray,
the expert whom Marconi sent here
when the Hawaiian system first failed
to work, the jurors were given an ex-4
PLANTATION, if they could understand it,
|. of how the wireless system works.
Grays explanations, in answer to ques-
tions by ex-Judge Silliman, may have
left some of the jury in the dark, but
none ventured to question him.
How does the system work? asked
.Silliman.
by first sending and afterwards re-
ceiving," began the expert. You call
up with your key. The movement of
cults of the coil, and the contact makes
! long or short breaks and"
'7Ehe movement of the kew establish
| es CURRENT"
| Yes, sir. When you close the key
you make a current. If you open the
KEY you DTedh lne current. Inc cur
rent proceeds to the coil and is broken
up by the interrupter on the coil and
turned into a returning current, a
secondary with a very high potential
which charges the aerial wire"
There is a spark produced?"
1T charges the aerial wire to a GER
tain potential which the air between
the balls on the coil won't support and
the charge in the aerial wire discharges
! ba no 10
balls and that discharge is not continu-
Gus. 1t keeps oscillating back and
forth until it breaks"
And then what is the effect of the
! breaking of the CURRENT"
"Well the interruption of the current
going at very high rate of speed, when
you make dots, and dashes with the
key you send out a series of oscillations,
| either a lot together or "a few together
| which make a dash or a dot, and these
oscillations travel out and start through
| the aerial wire through the air or ether
! to the other station"
At the other end the aerial wire is an
electric station and the electro mag
netic movement in the ether causes a
| movement in the wire of the same
period" said Gray. The movements
were communicated to a little jigger
| in the induction and then the program
! is quite simple, as follows THAT os-
secondary coil and produces an altera-
and out and that acts alternately on
the secondary, which is the same as the
secondary evil and produces an altera-
ton in the potential and that produces
an alteration in the coherer and that
produces an alteration which breaks
down the cohesion of the filings and
| closes the circuit between the coherer
and the secondary of the little induc-
tion coil and throws it so through the
relay, and the circuit being closed the
relay works and acts on the signal
| tap"
After receiving this answer the at
torneys turned their attention 10 the
contracts between Marconi and Cross,
and the work done by Gray in putting
| in the system. The case is being tried
now by +. b. McClanahan for Marconi
and John w. Cathcart and f. w. Mil
Verton for the defense