The enterprise. [volume] (Harlem, Mont.) 1899-1926, 1914-02-26
READY FOR ELECTRlFICATIoN
Milwaukee Railroad to start Work
In Few Weeks-Of Interest to
Engineers.

ASASeVs 0CAAALO WOIO HUB UCcA 10
ceived In Butte that construction work
on the identification of one engine
district Of the Milwaukee road be-
tween Three Forks and Deer Lodge
will be started in few weeks. This
Is part Of the project to electrify the
Milwaukee road between Harlowton,
Mont, and Avery, Idaho, 440 miles
across the Belt, Rocky and Bitter Root
mountains, total distance of four en-
CINE districts, with maximum grades
OF 2 per cent. Probably no railroad
identification scheme has aroused
such interest in the engineering world
as this stupendous task which the Mil.
waukee company has placed before it.
1t has been decided to adopt the
2,40O-volt direct current system of pro-
pulsion, utilizing the regenerative cleo
trio braking feature, which will take
the place of the air brakes on the
mountain grades. This is the system
which has been applied by the Gen
eral Electric company in the electrifi-
cation of the Butte, Anaconda & Pa.
cific, except that the regenerative
electric braking feature is not used ON
that road, and it is expected that in
large measure the details of that in.
stallatiOn will be used on the Milwau.
kee with such notifications imposed
by trunk line operation. 1t is expected
to operate this district with twelve
200-ton freight locomotives, four 200
ton through passenger locomotives and
two 10O-ton local passenger locomo.
tives. The switching will be done
with electric locomotives.
The locomotives will draw power
from an overhead trolley line of the
centenary type, reinforced by copper
feeders, and return circuit consisting
of bonded track with supplementary
return feeders. The trolley line will
be supplied with power from substa.
lions at Morel, Newcomb, Grace Pied.
mont and Three Forks.
These substations will be connected
to the feeding points established by
the Great Falls Power company, which
will supply the electrical energy by
100,O00-volt transmission line along the
companys right of way for the entire
length of the district.
The estimated cost of the complete
installation between Three Forks and
Deer Lodge is about $1,500,OOO, exclu-
sive of locomotives, but including all
electrical apparatus, material, labor,
substation buildings, overhead and
track construction, and all incidental
expenses except the changing of block
signals from direct to alternating cur.
rent.
The freight locomotives are designed
to haul trailing load of $500 tons on
l. per cent grade at speed of fifteen
miles an hour. 1t is proposed to op.
crate through freight trains with a
maximum tonnage of $500 tons, using
one locomotive on grades up to per
cent and two locomotives between /
per cent and 2 per cent.
These locomotives will weigh an.
proximately 100000 pounds, with all
the weight on the drivers Each loco.
motive will be handled by single on.
orator, but for convenience in shipping
and making repairs, the locomotive can
be divided into two 1OO-ton units,
which If desirable can be equipped
with draft rigging and operated indie.
pendently in switching service. The
running gear is composed of four four.
axle trucks articulated. Each axle Is
driven by a 2,400.volt direct current
motor connected to it by twin gearing.
Two superstructures rest upon the
running gear and serve as housings
for the air compressor and control ap.
paratus.
Each locomotive will be equipped
with two air compressors of $50 cubic
feet piston displacement. The current
will be connected from the overhead
trolley by rolled pantograph collect
or.
The through passenger locomotives
are to he designed to pull a ten-car
passenger train weighing 1000 tons
with speed Of twenty-four miles an
hour on 2 per cent grade. The loco.
motives will weigh 200 tons, all o.
which is ON the drivers.
MONTANA TO PROFIT BY SAIL