The copper country evening news. [volume] (Calumet, Mich.) 18??-1907, 1897-12-02
PICTURES BY WIRE.
DR.. DUN LAMPS TELEGRAPHlC IN
vENTlON IN CLEVELAND.

u Have Succeeded In Perfecting-Print-
ed or Written Matter Can Also Be 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
of having invented and perfected the first
| really practicable and successful system of
transmitting and reproducing pictures by
telegraph.
1t has remained for Mr.. Dun Lany to
accomplish in very simple maner that in
which previous inventions have failed. A
trial was recently given the Dun Lany ma
chine over telegraphic 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 the re-
ceiving end, and indeed no artist could
have scarcely reproduced such an exact fac
smile Of the picture placed upon the re-
| volving cylinder at the transmitting end
of the wire az that traced out by the rapid
| ly moving stylus at the receiving point.
1t 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 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 telegraphing pictures 1T has gener-
ally been found that the mechanism could
not be adapted to the weather conditions.
1t is quite evident, however, that in the
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
/
, point as accurately and as easily as in the
case of pictures. The inventor believes
that under practically the same method ms
employed in the present machine all en-
tire matrix, or full page of newspaper,
when properly prepared, can be placed
E upon an enlarged cylinder at distant
points in printed form as successfully as
pictures are sent Experienced operators
r 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
t ing of the machines in very short time.
/, The mechanism for the transmitting
point consists simply OF cylinder, OF
roller. operated by synchronizing CLOCK
! work The arrangement very closely re
sembles the cylinder with accompanying
q tracer used in connection with the phono
s graph. At the back of the cylinder ant
n running parallel with it is small roc
with a very fine screw thread. An arm
extends out over the cylinder from thi
rod and tracer projects downward iron
1T Just over the cylinder.
The synchronizing clockwork causes tn
l. cylinder and the rod with the thread &
Y reyolye. The picture, which is etched upol
"a n zinc plate, such as is used in newspape
Offices, is covered with n nonconductiv
e paint, except the lines Of the face or obJec
d to be transmitted. Being flexible, tn
T. etching is wrapped around the cyllnue
and clamped on the outer edges. In
Ia tracer remains stationary, but the cylindt
10 as it revolyes gradually passes to the lei
~ so that the tracer covers every line in IL
z picture. These lines being the uncovere
le zinc. and that metal being conducto
| a.. al;
cylinder, when the tracer passes ov'
them, while in passing over the portion
protected by the nonconductive paint u
circuit remains open or broken.
)r At the receiving end the mechanism
le with one or two exceptions, almost lden'
n cal with that at the transmitting pom
Instead, however, of the tracer at the Ell
10 of the arm is "a regular stylus point us'
for making manifold copies. 1t is co
trolled by an ordinary telegraph sounde
ye which rests on the end of the arm al
k which in turn is operated by regul
telegraph relay cut in on the main circu
The stylus projects downward from T.
H. sounder lever to the face of the cylinder
lie Several sheets of paper, between viii
are carbon sheets, are wrapped around t
cylinder and pasted at the edge, SO as
no keen smooth surface. The cylindt
~ when in operation, gradually moves W
~ left lust as it does at the transmitting 81
Ed ton. The sounder, of course, follows I
a tracer at the sending point and recor
nd each opening or closing OF the circuit
tracing ON tho paper through the CARP
sheets every line or mark appearing
:. the uncovered picture at the transmittl
10. end. When the cylinder has run 10
I'LL end of the thread, it is lifted out Oh
ar place and the "copy" cut from 1t. flite
10. or 20 copies of picture can be taken 81
=. ultaneously by using carbon paper, or
III using mimcographic copying paper a
number desired may be secured. 10y usl
specially prepared paper at the transm
vi ting point messages can DO REPRODUCED
ay facsimile form.
me In speaking of this invention DIR. ID
,o Lany said:
''' al do not claim the idea of sending I
ture or autog1aphic work by wire Is
inventive principle. The principle It's
he is very old as others having carried
sy many experiments in that direction
Dw / do claim to have reduced, simpihed q
ard ,onde possiLle and put tho scheme 81