Keowee courier. [volume] (Pickens Court House, S.C.) 1849-current, 1910-08-03
TO SEND PICTURES BY WIRE.
System Soon to BE Inauguratcd in
New York.
New York Times. J

Fanly good photographs have al
ready been photographed" from Paris
to London, and excellent ones have
been "telephoned" between Manches-
ter and London, according to II. T.
Baker, phototelegraphic expert
who lectured on this latest of the
| communication-sci before the
New York Electrical Society last
| night.
Photographs were sent in four and
| g half minutes from hotel 80 miles
outside Of London to newspaper
oiiice In London, according to Mr..
Baker. This was year ago. The
representative, after taking the pho
! tograph, went to the hotel, attached
his portable phototelegraph appara-
tus TO a kitchen telephone, wrapped a
sensitiZed tinfoil print which l'a had
taken from the original photograph
around cylinder in his portable aD-
paratus, and set stylue in his appa-
ratus moving over the print When
ever the point OF the stylus passed
over one of the lighter spots on the
Photographic print 1T sent on a longer
electrical vibration. The ever
changing electrical current passed up
through the stylus, vibrated with
ever-varying degrees OF intensity
over the 80 miles Of telephone wire
IN the London newspaper Office, and
there entered q receiving box which
had been attached to the other end
OF the telephone line. In the receiv-
ing apparatus the current caused an
other stylus to pass over sheet OF
sensitized chemical paper. The re-
ceiving stylus passed up and down on
the sensitiZed paper spontaneously
as the transmitting stylus passed up
and won the surface Of the photo
|graphic print. The impression which
each stroke of the receiving style
made on the paper was black. accord
ing to the length Of the ever-chang-
ing vibrations Of the electric current.
White spots on the Photographic
print came out as black marks on the
sensitized paper over which the re-
ceiving stylue passed.
Photographs taken at the Steinhell
trial in Paris were Transmitted in
this way to London newspapers with
tolerablc success, thus saving an en-
tire day. Some Of the photographs
hitherto transmitted by telephone
and considerable touching up in the
newspaper Offices brought them out
splendidly. Others, like the picture
OF the late King OF England, which
Mr.. Baker showed last night, did not
neeu any retOuCnlnS.
Mr.. Baker gave a brief history Of
the science OF Dhto-telephoning. AS
early as 1S47 it seems that sensiitzed
plates or sheets of paper could be
diScolored by electric currents pass
ing through wire The main diff
Guilty in developing the science has
been to make the two styluses pass
spontaneously backward and for
ward over the surfaces of the photo
graphic print at one end Of the line,
and OF the chemical sheet Of paper at
the other en-. A very good photo
graph of President FalliereS of the
French Republic was transmitted
from Paris to London three years
ago.
The cost of transmitting a photo
graph from Paris to London has
hitherto been about 5000. But re-
Gently invented portable apparatus
makes photo-telephony much cheaper
and is to be tried by newspapers here
during the coming week.
Experiments in telegraphing pho
tographs from London to New York
will be tried within six months, ac.
cording to Mr.. Baker. Mr.. Baker has
come to this country to establish
photo-telegraphic communication be-
tween New York, Boston and Chi
cago.
The various steps in the process of
sending a photograph by telephone
are thus described by Mr.. Baker and
MS assistants: An ordinary photo
graph Is taken. A negative Is made.
a print Is made, and then a wet
plate negative Is printed on a sheet
of scnsitized tin foil, in treating
which single line screen is used. a
half-tone, unetched and greatly in
tensiiicd, Is thus produced. The tin
foil haiftone is wrapped around
cylinder, and a stylus with a very del
icate, sensitive point begins passing
over 1t. An electrical current, very
ing In length according TO the white
or black places on the Photographic
print, passes through the stylus to
the spontaneously moving stylus at
the other end Of the line, which re-
produces the current lengths in the
form of white or black marks on the
sensitive paper sheet.