Evening capital. (Annapolis, Md.) 1884-1910, 1907-09-19
INTERESTING ENGINEERING
MANY PHASES OF IMPORT.
ANT WORK ON ELEcTRIFl.
CATION OF SHORT LINE
Work Being Pushed Rapidly Speed S.
Niles Per Hour subsfatiOn Six
Miles From Annapolis
POWER FOR ELECTRIC ROAD
TO BE SUPPLIED FROM
WESTPORT

" I'D a EOhA
Those who travel over the Short
Line Railroad uOw realize HAT the
day Is not far distant - hen the electric
cars will replace tie grimy old steam
cars n0w IN use over this popular road.
A glance ont 81 the car window con-
yfnces the traveller TO Baltimore that
work on the electric road Is being
pushed rapidly TO completion. The
trestIe near Baltimore over which the
cars COW pass Is not completed, and
tie cars move very slowly over this
structure. Men were at work all
night last night piling up the earth
around this trestie, winch Is clever
piece ~ railroad engineering.
The work Of liberalization on the
Baltimore aud Annapolis Short Line
railroad presents many interesting
phases Of engineering and is among
the most important pieces Of work 81
its kind going on in this country %
the present time. ~ Is sprobal le Ils
II will soon be duplicated by the Ncw
York Central Railroad.
Tho line which is being electrified
is part single and part double track
road. extending from Baltimore to
Annapolis,a n distance of about twenty
five miles, extending through Balti-
more and Anne Arundel counties.
The northern terminus OF the Short
Line tracks rs af Clifford Junction,
about four miles from Baltimore, and
from this point the trains have been
operated over tie South Baltimor G.
branch Of the Baltimore and Ohio
Railroad.
~ order 10 extend the tracks OF the
Short Line 10 the city IL bas been
necessary 10 move over 100000 yards
of earth for a distance or about two
miles. IN preparation for the electri-
Gcalion, new S0-pound steel rails are
being laid over the entire road. All
curves possible are being eliminated,
others are being reduced, easements
being used on all curves Of more
than two degrees.
The cars viii be Of bigh-speed, In
lerurban type with inclOscd yesti-
bules. They will be finished inside
IN mahogODy. Tie expresg cars viii
seat between 80 and go persons. The
local cars will be equipped with bag
gage and express compartments, and
bott classes Of cars will also have
smoking compartments. The cars are
being bniIt by tie Southern Car con-
pany.
Zach car Will be equipped with -four
lf1-horsepOwor aliernaung-c u Trent
motors, and will bc capable Of attain
ING maximum speed Of % miles an
hour. They will be equipped with
the Westinghouse system Of electro
pneumatic multiple unit control, by
means of which several ears may be
operated in one train by ono motor
man. This feature extends 10 the air
breaks system also.
The trucks are being especially con-
structed. for this road by the American
Locomotive Company, and are design.
cd for tho heavy requirements Of the
high-speod service contemplated.
Power will be supplied by the Con
solfdated Gas Electric Light and
Power Company from It's Westp0rt
pOwcrbouse. The current viii be fed
directly into the trolley al $500 volts
and > cycles.
one Of the most valuable features Of
the singlc-pbase, alternatiDg-cuTrent
system lies in the fact that the cars
may be operated at much greater dis
tance from power and snbstationg
than Is possible with the well-kflOwn
dfrect-cnrrent sytgcm operating with
GOO volts on the trolley. IN virtue
Of this fact tho Baltimore and ADnap-
DiAH 1fUIN AflUN " III lfftHAAf OUiI INV
subsfation, at Jones station, nineteen
miles from Baltimore and six miles
from Annapolis. II is also M import
ant characteristic Of this sytem that
the snbstaiion contains only stationary
transformer rs distinguished from
rotating machinery necessary in the
dircct-currcnf system. For this rca-
son Jones snbstatiOn Will not require
constant attendance, bnt only Occa-
siOBaI inspection.
The substatfOn building will be con-
structed ~ brick and concrete, and
will be about 10 by 45 feet. This Is
the only building which II will DO
necessary 10 construct. The transmits
sion Of power from WcstpOrt substa-
ton will be accomplished at 2S,OOO
VOLS. one of The transmission line
i sufficient for normal service, the
other being installed 10 provide for
emergency and also for future growth
~ the service. IN ibe snbsiatiOn the
voltage Is transformed from 2,OOO
volts used for transmission 10 $500
volts necessary Dn the trolley.
The Transforming and control APP
paratns IN Westp0rt powerliousc and
Jones substatioD is being constructed
and installed by the Westinghouse
| Elcetricsand Manufacturing Company.
All of this work Is being carried out
under the joint supervision or j. 81.
/ White & Co., Incorporated, Of Sew
4 York. through their representative,
| Mr. Waldo III. Sawin and DR.. j, u.
| Whitehead, associate professor of
| physics at the Johns Hopkins uni
versity, rs consulting engineer. The
work is now probably ~ per cent.
completed, and good progress y being