Audubon County Republican. [volume] (Audubon, Audubon Co., Iowa) 1885-1894, 1893-01-05
A MONSTER ENoD E.
Which Is Expected tn Make 100 MIio, 81
Hour.

Hour.
The Pennsylvania railroad company
under the direction OF Mr.. Theodore
N. Ely. general superintendent OF
motive power has completed. at its
great shops at Altoona what IL in
many respects the most remarkable
locomotive ever constructed and. il
the capabilities OF this splendid ma.
chine prove TO be what is expected OF
it there will be most important de-
partures made by the construction OF
passenger engines intended for haul
ing heavy fast express trains.
The great size OF the engine can DO
pictured from the following descrip-
ton: Total weight OF the machine
alone is $4,000 pounds. or seventy
two and one. half tons. When com.
plete with the tender and ready for
service. combined weight OF all is
224. 900 pounds or liz tons. There
has never been locomotive con.
structed on four drivers which Is as
heavy as this one. there being As.
900 pounds over each pair of drivers.
The driving wheels are the largest
ever built for locomotives in this
country and are seven feet or eighty
four inches in diameter. The boiler
pressure is 200 pounds. and the com.
pound principle Is OF the two cylinder
type. The two-hundred pound pres.
sure has already been maintained
with surprising ease OF the trials.
The cylinders are respectively nine.
teen and a half and thirty four inches
in diameter the high-pressure cY!in-
der OF course. being the smaller, and
tho low pressure thu biggest locomo-
tive cylinder ever constructed. The
pistons OF both cylinders have a
tventy-inch stroke, and among the
many advantages possessed by the en-
CINE is one enabling the engineer TO
start the train with steam from the
low-pressure cylinder The high.
pressure cylinder is on the left side OF
the train. and steam generated passes
first through it. cxhausts into the low.
pressure cylinder and is then blown
off.
The boiler is six feet in diameter
and twenty-seven feet long. The fire
box Is as large in proportion being
nine feet long and forty inches wide.
inside CRATE measurement. The height
TO tho top OF the cab Is fourteen feet;
10 the top OF the stack. fifteen feet;
the distance from the bottom of the
boiler to the rail is six and half feet
so that man over six feet tall could
walk under the boiler. In the con-
struction of locomotives the slide
valves are usually placed on top OF the
cylinder In this engine they are be-
tween them. and are piston valves
twelve and half inches in diameter
Tho forward wheels arc forty-two
inches in diameter and are steel
tired with wrousmh t iron ceHters.
The tender Is equipped with three
pairs OF wheels instead OF eight
wheels on two trucks. They are OF
the same pattern as the forward
wheels OF the engine and each pair
is equipped with equa ed brakes.
The tender is equipped with spring
buffers
The idea is to got the time between
Jersey City and Philadelphia down to
ninety minutes, says the Cincinnati
Enquirer. maintained schedule speed
OF sixty miles an hour This it is de.
sired to do with the new locomotive
under all conditions no matter how
favorable. taking considerations OF
delays slow running stretches. &c.
This. OF course requires that the en-
gine shall make up time lost aud
bring the train over the road at an
average OF Il mile a minute, including
everything. 1t is hoped that under
The best conditions after the engine is
thoroughly in trim that as high a
speed as 100 niles an hour may be
maintained.