The copper country evening news. [volume] (Calumet, Mich.) 18??-1907, 1897-12-01
PICTURES BY WIRE.
DR.. DUN LAMPS TELEGRAPHIC IN
VENTlON IN CLEVELAND.
What Many Have Attempted He Claims
Fave Succeeded In Perfecting Print
ed or Written Matter Can Also Re Trans
mitted-Mechanism Is Quite Simple.

ed or Written Matter Can Also he Trans
mitted-Mechanism Is Quite Simple.
1t is more than probable that upon DR..
W. +. Dun Lany, bright young inventor
OF Cleveland, has fallen the good fortune
oil having invented and perfected the first
really practicable and successful system of
transmitting and reproducing pictures by
telegraph.
IL has remained for Mr. Dun Lany to
accomplish ir very simple maner that in
which previous inventions have failed. A
trial was recently given the Dun Lany ma
chine over Geographic circuit of $50
miles in length. The wires used in this
circuit were about equally divided between
copper and iron wire, 425 miles being cop
per and the remainder being No. s gauge
iron wire. One hundred volts of current
were attached to each end of the line.
The trial resulted most successfully.
Pictures were transmitted and reproduced
through the $50 miles of wire almost per-
fectly. Every line and expression of the
face was faithfully brought out at tho re-
ceiving end, and indeed no artist could
have scarcely reproduced such an exact fac
simile of the picture placed upon the re-
volving cylinder at the transmitting end
OF the wire as that traced out by the rapid
ly moving stylus at the receiving point.
Ii may be stated that in the eyes of the
electrical experts who have made "a study
of the matter the simplicity of the appa-
ratus is one Of its strongest features. Then,
too, the machine can be worked upon any
telegraph line where messages are trans
mitted under the ordinary system, requir-
ing only the usual amount of battery. An
ordinary picture of "a person, such as is
generally used for newspaper cuts, can be
transmitted and reproduced over long or
short circuits in from five to seven min
utes.
In previous attempts TO accomplish the
feat of telcgraphng pictures it has gener
ally been found that the mechanism could
not be adapted to the weather conditions.
1t is quite evident, however, that in tho
Dun Lany machine weather conditions
will have no more effect upon its success
full operation than is experienced in trans
hitting messages with the Morse code.
Not only can pictures be reproduced
over long distance lines by the machine,
but also printed or written matter can DO
transmitted and reproduced at a distant
point as accurately and as easily as in the
case of pictures The inventor believes
that under practically the same method as
employed in the present machine an en-
tire matrix, or full page of a newspaper,
when properly prepared, can be placed
upon an enlarged cylinder at distant
| points in printed form as successfully as
| pictures are sent Experienced operators
| are not required in the operation of the
mechanism, it being held that any person
| of ordinary judgment can acquire the nee
essary knowledge for the successful work
ing of the machines in very short time.
The mechanism for the transmitting
| point consists simply Of cylinder, or
| roller, operated by synchronizing clock
work. The arrangement very closely re-
| sembles the cylinder with accompanying
I tracer used in connection with the phono-
graph. At the back of the cylinder and
| running parallel with it Is "a small rod
| with "a very fine screw thread. An arm
extends out over the cylinder from this
| rod and q tracer projects downward from
( 1t just over the cylinder.
The synchronizing clockwork causes the
( cylinder and the rod with the thread to
revolve. The picture, which is etched upon
a zinc plate, such as is used in newspaper
| offices, is covered with nonconductive
paint, except the lines of the face or object
| to be transmitted. Being flexible, the
] etching is wrapped around the cylinder
! and clamped on the outer edges. The
| tracer remains stationary, but the cylinder
| as it revolves gradually passes to the left,
| SO that the tracer covers every line in the
| picture. These lines being the uncovered
zinc, and that metal being conductor,
| closes the circuit which runs through the
! cylinder, when the tracer passes over
| them, while in passing over the portions
| protected by the nonconductive paint the
| circuit remains open or broken.
At the receiving end the mechanism Is,
| with one or two exceptions almost identl-
| cal with that at the transmitting point.
| Instead, however, of the tracer at the end
| of the arm is regular stylus point used
| for making manifold copies. 1t is con-
| trolled by an ordinary telegraph sounder,
which rests on the end of the arm and
which in turn is operated by regular
telegraph relay cut in on the main circuit.
| The stylus projects downward from the
| sounder lever to the face of the cylinder.
Several sheets Of paper between which
| are carbon sheets, arc wrapped around the
| cylinder and pasted at the edge, so as to
/ Keep u tInOOtn AhO SyAA'NS@,
I when in operation, gradually moves to the
| left Just Us it does at the transmitting sta
ton. The sounder, of course, follows the
tracer at the sending point and records
each opening or closing of the circuit by
| tracing ON the paper through the carbon
sheets every line or mark appearing on
the uncovered picture at the transmitting
end. When the cylinder has run to the
end of the thread, it is lifted out OF Its
place and the "copy" cut from It, Fifteen
or 20 copies of a picture can be taken sim
ultaneously by using carbon paper, or by
using photographic copying paper any
number desired may be secured. BY using
specially prepared paper at the transmit
| ting point messages can be reproduced In
| facsimile form.
In speaking Of this invention DIR. Dun
Lany said:
| al do not claim the idea Of sending pic
ture or autographs work by wire is an
inventive principle. The principle itself
is very old, as others having carried on
many experiments in that direction. But
| do claim to have reduced, simplified and
made possible and put the scheme on
practical basis. am certainly not limited