The Sedalia weekly bazoo. [volume] (Sedalia, Mo.) 187?-1904, 1889-01-08
MACHINE TELEGRAPHY.
Astonishing Inventions Recently Made By
an Old Newspaper Man.

Astonishing Inventions Recently Made By
an Old Newspaper Man.
MIR. ID. III. Craig, formerly manager
OF the Associated Press, has devoted
nineteen years to the development OF
machine telegraphy, and claims to be
able to telegraph two thousand words
per minute from each end of a wire
total, four thousand words in sixty
seconds.
The messages o. reports are legibly
and uniformly recorded in ordinary
telegraph characters, which can be
read by clerks familiar with them at
the rate of about one hundred words
per minute.
Messages, to be sent over the Morse
lines, must first be written or printed;
but q message to be telegraphed by
the new system must first be perfor-
ated, for which Mr.. Craig has a
beautiful little machine, Sx10 inches,
with two banks of keys, called q
composer" which even a child can
operate reliably and quite expertly
after an hours practice, and after
reasonable amount of practice fifteen
to thirty words per minute can be per-
forated. simultaneously with the per-
forations the machine nr'nts, in plain
Roman, every wo"l of the message,
which is retained. while the perforated
message is sent TO the telegraph Office
the same as a message IS sent in
manuscript to be telegranbcd over the
Morse line, with this diiference-the
machine message will be transmitted
to destination at the rate of one thou
sand or two Thousand words per minute,
and be legibly and accurately recorded
in telegraph characters. and the Morse
message will be te!egraphed by the
hand-key system az the r,,Je of fifteen
to twenty-five words per minute and be
recorded by ''sound " reading in ordi-
nary manuscript. II i Claimed that
the machine record is three times
more accurate than sound" recording.
With the regular Office perforator
experts do, reliably, fifty words per
minute, or 3,00G per hour; and it is
claimed by Mr.. Craig that the actual
cost of transmitting1, 900 words 1000
miles Is not over cents!
The cost of paper to perforate 1000
words is l cent, and = cents for record
ing paper. Experts. young men or
young ladies, do perforating for 10
cents per 1000 words. and the same
for copying on the type-writer-total.
% cents for completing 1000 words!
On this basis it would cost for labor
and paper less than $50 to telegraph
and complete forty-eight columns of
this newspaper from New York to
Chicago.
Mr.. Craig has also devised a new
telegraph wire, made of pure copper
with slight mixture of silica, which
is said to increase the tensile strength
to twice the strength of steel of equal
size, the exact tensile strength being
reported as $4,000 pounds to the
square inch.
No. 4 gauge wire weighs over 900
pounds per mile, and has about one
ohm of electrical resistance per mile.
With such wire, extending from
New York TO San Francisco, the cleo
trical resistance would be about 5000
ohms, while a majority of the tele-
graph wires between New York and
Washington show an electrical resist
.ance of more than 1000 ohms-thus
the new siliconized copper wire will
bring San Francisco nearer to New
York, electrically, than New York is
10 Washington.-N. T. Sum.