Eagle River review. [volume] (Eagle River, Wis.) 1890-1927, 1909-11-19
STOP! LOOK! LISTEN
A TALK WITH THE SIGNALMAN

How about the sj64le fT,aa
automatic arrangement is tS" ~
there is a signal at each arI Sane
Isn't it a possible thmg e.,
TO enter a single track al o ~. hi,
the same instant another -, "e End \
opposite end? What than ~, '''s'S Al 4.
4" Ges--but we have tlai ta,..
On double track, a train tGr Vtge /,
signal talks only TO thu r.,'1 o-S2 d
On the single track it an, ''a oeaj,i
back, but also to one which nl'y tai,
ing from the opposite C3iyfntia~,| Dc ar,
done by the current oyeIIar'" 49, This ,
one block to the next. RofHTrSo ina
trance to single-track bIo~, !, ne e.
the train sets Il stop sigma at eacl
end OF the block it is abo,t Tie L
And as it enters the btocl, !, 81" u, eDt@
the entrance Signal to stoD i.' asp 81,
done on double-track. ''S' as /
How does an engineer know -,
sees the nome arm what it viii ~ 1s \
1--WE put up another signal frn.' S'slai
mile to a mile from the end l.UM hal
block-in the direction from lug ,.te %
train approaches. 1t is called VIM" me, Ii
The one at the entrance is oSait
Home signal. The distant in6 S,t.eu Il
position of home signal seeq" '''1'es ID
Is the distant DISTINGUISHES 3.
home signal. to aid the enetrae rSSS0 ID
Yes, the Distant is Dair,aJ
with black bar. and has a fHri., s{'@E
the Home red with white h h,u Gd
square end" Val an
You said while AGO tha s.o.
is displayed only when sonerbinnp S'si
Anything but trains o2curo" 0V'Qs
Now you touch the most irr,..
feature of the outfit, and the nrinJ a.
reason why the arm is made ~ 81
when left to itself it will stav a.. ~
at stop. AS it is constructed + o "a
show anything but stop, unless tho 'a a5a
combination of rails, wire, cnrrant VIu'
net, etc, are working perfectly T'S
wire parts, a rail breaks. a batterv a.,
a switch point opens the sljphtayit i a
the combination fails, the arm is ra,oo Wv
and resumes horizontal position thu rt[10 y
gineer knows you see, when signal ai[ ~. "a
stop: there may be a train AN o ~!
switch, a break in the track or in ~ 4
signaling apparatus"
What is done at night wba, \
semaphore arm cannot be SEEM"
Lights of several coIors are usod
these same posts. These are seen fhra,'
spectacles in the butt or weighted %
of the arm, and are displayed and a.
scured, according to the signal"
"Why the name spectacle"
That's what it is. The light is WIFI
or ordinary flame color, supplied by a
eight-day lamp. 1t will burn eight iar
without replenishing, although all IamT
are refilled every four or five DAYS Wis
the home signal is in stop position n
engineer sees the flame through ~
glass. That's stop, and it is used or
in the home signals. If distant sigr
is at caution he sees through veRr
glass Yellow is used only in the fista,
signal. 1t tells the engineer it A
distant, and to be prepared to stop
the home signal. He may see throug
green glass. That means proceed, an
is used in both home and distant signlL
what does a white light mean?
"Well, it is so easy to have we don
dare use it. AS white light on semi
phore can be displayed by breaking Sa
tacle glasses, you can understand wh
it is impossible in our scheme"
"How about places where two or MOI
lines cross at grade?'
1.-THE general principle, movements
arm by day, and coIOrs of light at nig,
are the same, but being greatly comp
Gated all signals are controlled by eve
operated by men from a central static
The crossing and contiguous tracks al
governed by the Interlocking system
when in perfect order and unOeG
pied it displays stop to every track a
preaching the crossing. The block "