The times dispatch. [volume] (Richmond, Va.) 1903-1914, 1911-01-22

new multiplex phone But by increas
Ing the velocity OF the vibrations he
made the phenomenon appear far out
from the skin of the wires.
Talk Travels In Layer nI Ether.
Tile conversations travel in a iaycr
of ether around the wire" IL, explain
ed They don't get into 80 wire-aro
merely guided by it. II there is Il
twisted PAIR IL wires tile messages will
cllhS so close To each wire as 10 pass
through the tissue paper wrapping on
each wire. while If there arc
Two straight wires, foot apart.
some OF The messages will pass between
me wires on the inside. while others
Will be darting along two feet or moro
from the wir=s. on the outside.
Bctwcen our laboratory ana the
national bureau of standards. seven
miles away, we receive tn@nl over ali
sorts OF telephone lines OF the civ
it--undcrGround wires and over
mead iines--and they pass through
several Of the city swilchboards or
"ccntrals'
The APPARATUS which the lalkor uses
IS exactly the same as employed In
ordinary phonins You may receive
the messages in your house ,yitho,,,
changing tho form of thu, visible an
paratns at all. But in the hidden con
ncctions the devices used. In wircIcs.
teiegraphy are connected There ara
n" nu%zes or cracking sparks such as
me wireless operators OF our thrilling
inelodramas create for stage eject
Ana only one wire is necessary where.
as n our phones of to-day :. pair arc
needed.
How Messages Get to Right Person
But how can YOU send several mes
saScs along the same wire. and then
sort them out again. so that the proper
/ car receives the message, from the
mouth that is talking TO it?
This is effected hy proper tuning"
The wire has a separate fork so To
speak, FOR each message to Dc sent or
received along IL. Let us say that
there are i've forks and one man con
f, nectcd with each fork. All nvc arc
talking at once along the same wire.
The first mans phone Is tnnca 10
100000 vibrations per SECOND. tho see
ond mans 10 90.0o0 the third mans to
| 10000. the fourth to 10000 ana the nth
| to 10000 Each talks To a phone at
the other end of the line tuned for
| the Time being exactly as his is And
each pair Of joined phonca is like a
PAIR oil ears, having the same peculiar
and limited range of audibihiy 10 nut
II In another WAY. suppose thai Won
nave I'VE men seated on tho north ana
iivo moro seated on tho soa,h side of
The parlor. Each has n range OF voice
ana car exactly like the man directly
| "ppoS,te him, but beyond The range of
aldibilitE "f any one else n the room
The tivc pairs Of men couid ,hcn talk
az once, could they not. without con.
! fusion?
| =. Can Tails Across Continent
| nus you nave wireless along the
| wire which guides it safely between
me HcElla Of bad weather ana the
! charyhdis of meddling .tnppcrs.'' Tho
! ihrthcr our phone messages; of to-day
pass through the wircs-insidc them
| tnc greater Is the resistance and the
: amer 'he sound at The other end.
iiy Inc ROW system thev slip along
through tho air with tremendous saving
OF rcSistencc That is why II will soon
DC possible 10 talk from one side or
.he continent TO the other. Tests late
~ inade--with music produced by the
( most delicate talking machines-show
/ 'hat inc ncw system carries the voice
with much greater clearness than can
he effected with the old
ne lrSt great use of the new sys-
tom VIII be for long distance service.
Major Squicr tells me. To-day the
unit. Is from New York to about Omn@
ma To-day when you get wire from,
yours 10 another city you monopolizc
mat entire wire as long As You talk
SHORTY nine other men. perhaps, will
/ use the same wire with you. without
Son knowing It. The number OF sim
! uitancous messages Will DEFEND upon
| the character OF the line. whether run
overhead, i'y conduit or by subway,
me free, overhead wires giving the
heSt results so far. The submarine
4 a n al 4
mal9t nag net very roscatG hopes oc