Weekly expositor. (Brockway Centre, Mich.) 1882-1894, 1893-01-06
A MONSTER ENGINE.
which Is Expected to Make 100 Miles an
Hour.

Hour.
The Pennsylvania railroad company
under tie direction OF Mr.. Theodore
N. Ely. general superintendent OF
motive power has completed at its
great shops at Altoona what is 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 trans
The great size OF the engine can DO
pictured from the following descrip-
ton: Total weight of the machine
alone is 10 900 pounds or seventy
two and one half tons. When COM
plete with the tender and ready for
service combined weight OF all is
224. coo pounds or ll2 tons There
has never been0a locomotive con-
structed on four DRYERS which is as
heavy as this one there being 49,
600 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 IT ais.
The cylinders are respectively nine
teen and n half and thirty -four inches
in diameter the high-pressure cylin-
der of course being the smaller. and
the low pressure the biggest locomo-
tive cylinder ever constructed The
pistons of both cylinders have q
twenty inch stroke and among the
many advantages possessed by the en-
CINE is one enabling the engineer 10
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, eXhausts into the low
pressure cylinder and is then blown
of.
The boiler is six feet in diameter
and twenty feet long. The fire
box is as large in proportion. being
inside CRATE measurement. The height
to the 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 end half inches in diameter
The forward wheels arc forty-two
inches in diameter and are steel
tired with wrought iron centers.
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 lied brakes.
The tender is equipped with spring
bnfTers
The idea is to get the time between
Jersey City and Philadelphia down to
ninety minutes says the Cincinnati
Enquirer maintained schedule speed
of 81 ,ty miles an hour This it is de-
sired to do with the new locomotive
under all conditions. no matter how
unfavoraole. taking considerations OF
delays slow running stretches &c.
| This. OF course requires that the en-
gine shall make up tim,' lost and
bring the train over the road at an
average OF a mile minute including
everything. 1t is hoped that under
the best conditions after the engine is
thoroughly in trim. that as high
speed as 100 miles an hour may be
maintained.