The Jasper weekly courier. [volume] (Jasper, Ind.) 1858-1922, 1909-11-26

'How about the single tracy 90 .-
automatic arrangement IS the same Ds
there N signal AZ each ond VnF
Isn't IL a possible thing fof 49,
TO enter "A single track at ono er 1.n
the same instant another enter. ~, eh
opposite end? What them" wv
"fes-but we have that taken n,..
ON double track. train thfanrb ~
signal talks only 10 the train heh,ss
on the single track II not nniv ,Innl
back. but also 10 one which may x. as s
ing from the opposite direction r.,
done hy the current oveflarrlr, ~ =
one block Go the next. Befor. H. ".
trance 20 single-track block !, res.sas
the train sets stop signal al he ~.
end q the block II Is about d, e,,sl
And as IL enters the block n al.o W..
the entrance signal 20 stop. higt ~
done on double-track
How does an engineer know hefor. a..
sees the home arm what " VIII sIrn,is
we put up another signal from n bs,,
mile to mile from the entrance a.
block-in the direction from which 80
train approaches. IL is called 'D.t.n,s
Fhe one at the entrance As cantd ~
Home signal The distant lnd Gates ~
>osition OF home signal. seq"
is the distant distinguish from the
lome signal 10 aid the engin, raa
Yes the Distant is painted ve,low
With black bar. and has a flrkel enS
he Home red. with white bar ana
quare end"
You said while ago the stop sigma,
displayed only when somcthlns occurs
Nnythlng but trains occur?
Now you touch the most inpor,a,,
eature or the outht. and the princlpai
'eason why the arm IL made so ne,
when left 10 itself Il will STAY arn,lv
al stop. As II Is constructed r canno,
show anything but stop. unless the entire
combination OF rails, wire. current mag.
saaN gfA ..l.4..
wire parts. a rail breaks. a battery falls
switch point opens the slightest then
the combination fails. the arm s. released
and resumes horizontal position The en-.
gineer knows you see. when sigma saws
stop there may be train. lu oten
switch, break in the track or 10 the
signaling apparatus"
what is done at night when the
semaphore arm cannot be scene
Lights of several colors are used on
these same posts. These are seen through
spectacles In the butt or weighted end
OF the arm. and are displayei and OBJ
scured. according TO the signal
why the name spectacle
That's what II is. The light Is white
or ordinary flame color. supplied hy an
eight-day lamp. II will burn eight laws
without replenishing although al amps
are refilled every four or five dar. When
the home signal is in stop pos tlon. The
engineer sees the flame through red
glass. That's stop. and Il D. used only
In the home signals. II distnat signal
Is at caution he sees through yellow
glass. yellow is used only in tht l-tant
signal. II tells the engineer % &. the
distant and 20 be prepared o. Stop II
the home signal. He may sre through
green glass. That means pro...l and
Is used IN 10th home and distant signal"
what does a white light unlnr
"Well. IL Is so easy 10 have wr lon'i
dare use II. As "A white light 0n 3 srma-
phore can be displayed by brsakina Spec
tacle glasses. you can understand why
II Is impossible In our scheme
How about places where two 0r more
lines cross at gradef
The general principle. movements 4
arm by day. and colurs OF light it KIT
are the Same. but being grelf'F compile
Gated all signals are controlled hs erers
operated by men from "A central sutton
The crossing and contiguous ira As are
governed by the Interlocking SIS stem
when in perfect order ana lnoeru-
pied II displays stop 20 every trl ~
preaching the crossing. The biol you