The record-union., 1894-12-29
ONE HUNDRED MILES AN HOUR
The New Giant Locomotives on the
PENNSYLVANIA Road.


That a locomotive can haul train of
cars filled with passengers at the enor-
nous speed of 100 miles an hour is no
longer an impossibility, but has become
a fixed reality. This marvellous feat has
been brought about by the genius of the
American mechanic. Only few years
ago the raising of speed to the high max
imum OF sixty miles an hour, with steam
as the propelling power, set science to
wondering.
The Pennsylvania Railroad Company
has constructed an engine which they
claim VIII out-travel any locomotive in
existence. 1t is capable of a speed of 100
miles an hour. At this unprecedented
speed it will pull full train. consisting
of four vestibule Pullman cars, two day
coaches, a combination car and the loco
motive tender. When ascending the
steep grades and rounding the sharp
curves on the Allegheny Mountains a
velocity Of one mile minute has been
maintained. To railroad men of the
country this record d-breaking flyer is
known as the "Pennsy's latest style,
Class 'P,' express locomotive" For
endurance and general wear and tear it is
believed that this engine can stand more
hard usage than any other locomotive
ever constructed.
The smokestack is somewhat different
from those in general use on the Penn
sylvanla road, being straight, without any
break, excepting single nozzle at the
top, where 45-inch tip is used. The
principal new feature, however, is the
employment of a driving heel 50 inches
in diameter. On the average Pennsyi-
vania passenger engine the driving
wheels vary from 62 to Is inches in size.
The technical details of the engine have
been gone over thoroughly and every
part greatly improved where the service
Il Ill loo, Id
These neW-Style engines have first
class ash-pan, made out of castiron, and
the dampers are air-tight. y Belpaire
boiler is used, which Is 81 inches III di-
ameter ana contains 20S tubes. These
tubes are l36 inches in length, with an
outside dimension OF Seven-elghths of an
inch. The cylinders have the enormous
dimensions of l9 by u inches and the
fire. box is 46 inches IN width, 494 inches
in hight and ll94 inches in length. The
entire weight of the locomotive is l25 500
pounds, and the length along the base is
81 feet 8 inches.
The area OF the CRATE is 334 square feet,
and the total heating surface is 1,5S3
square feet. OF this amount the fire-boX
has heating surface OF lfS square feet,
and the boiler tubes ,435 square 1eet. The
steam pressure amounts to 10 pounds to
the square inch. The entire cost of the
engine amounts, approximately, to $4,000.
The form Of guide is the four bar variety,
except that the two top bars are substi-
tuted for a cast-iron one ten inches wide,
with big strengthening rib in the center,
The lower guides aud crossnead have
been improved in making it lighter, ana
in holding the plston-rod nut Is placed,
which discontinueS altogether the use of
the troublesome key. The tires are four
inches thick.
The travel of the valves is six inches,
and lap one and one-eighth inches. The
cylinder cock rig operates a third cock
that is tapped into the stream passage to
the cylinder to prevent water from going
over, and this alone is considered one OF
the greatest money-saving devices ever
placed on a locomotive.
The headlight is also something new
and unique in appearance. The sand box
has been placed on top of the boiler, in
stead of III the wheel covers. The cab has
Ventilator, and the reverse lever Is
short, but not easily handled. although
the throttle rig Is one OF those winding
affairs which climb around the boiler and
crawl at the enG into hole. The tender
attached TO the engine weighs 10000
pounds. on it can be stored 5000 gallons
OF water and $4,000 pounds of bituninous
coal. \ notable feature OF the locomotive
Is the new pattern water scoop, which
can take up water from the trough located
between the tracks when running at the
high rate of sixty miles an hour without
in the least splashing aqueous iuid over
the cars. One of these new engines has
been running on the United Railroads of
New Jersey and the Philadelphia, Viii
mington and Baltimore road, both leased
roads of the Pennsylvania system. An
other is hauling the Pennsylvan limited
west on the Middle division, between
Harrisburg and Altoona, and brings the
train in on time to the second at every
run without, apparently, the least trouble.
The average speed of the Empire State
Express" on the New York Central
road, is a fraction over fifty miles an hour,
while the maximum speed now attained
on the Congressional Limited'' of the
Pennsylvania line, between New York
and Washington, is fraction over
eighty-six miles an hour.-New York
World