Every evening, Wilmington daily commercial. (Wilmington, Del.) 1878-1928, 1906-01-13

The Pennsylvania RAILROAD Co. has
ordered 10 locomotives for expert
mental and observation purposes. Five
OF them will DO worked on the lines
east Of Fittsbuig.
They will consist Of four types Of
american and two Of foreign build.
The American engines consist OF
four cylinder balanced compound Of
the Atlantic tyre, built by the Bald
win, now the burnham. Williams Co.,
from ITS own d6signs. 4 similar engine
built by the American Locomotive Co.,
from It's own d, slgns; a prairie type
locomotive built by the same com
pany from ita own designs; a four
cylinder balanced de Glehn, compound,
built by the Sooiete Alsacienne de Con
stfuOtion Mecanique Of eeifort, France.
The engines Of the Atlantic type are
designed by the Baldwin and the
American Locomotive Co., and are
similar 70 each other 10 general az
pearauce. Each has the low pressure
cylinder upon the outside, driving the
rear pair Of wheels upon the axlea Of
which the eccentrios are placed,
moving the piston valves, which are
set above and between the two cylinders
on either side. a single valve operates
the high and low pressure cylinders on
each side. In the external appearance
Of the two is a noticeable difference
IN the Arrangement Of the equalization
between the drivers and the travelling
truck.
la the engine from the Baldwin
plant there Is a single bar, unequal
arms spanning the distance between
the springs Of the rear driving wheel
and the equalizer over the oil box.
The American plant engine uses a
series Of three short equalizers TO
cover this same distance.
In the comparison Of tables the
American will weigh $500 pounds
more than the Baldwin engine, while
the latter will carry in the tanE 8, 600
pounds mvre Of coal. The driving
wheels are 80 inches in diameter on
each. The American will have 80
tubes 2 inches Ia diameter aud the
Baldwin, 28l tubes Of pa inches
diameter. Ihe material Tor the axle
boxes and the driving wheel centres
are Of cast steel.
The consolidation locomotive built
by the American Locomotive Co,
weighs 90, coo pounds, Of which 1893, 900
pounds are upon the driving wheels,
equalization Of the engine IL arranged
to take the two rear drivers and the
two front ones With ths pony truck,
which is a modification Of the standard
arrangement OF a few years ago. The
boiler is fitted with 446 tubes each 2
inches Ia diameter, and is IS feet &
inches in length. The driving wheels
are 63 inches IN diameter. Tue tank
will carry 1000 gallons Of water and
10 tons OF coal.
The Prairie type engine, built by
the American Locomotive Co., will
have a weight 1850 pounds greater
than the consolidated engine. The
boiler will have 322 tubes, 2l4 inches
in diameter, 10 feet inches in length.
The tank will hold 1000 gallons OF
water and carry 10 tons Of coal.
The de Glehn engine is ia marked
contrast in general appearance to the
American types. Tie outline is
smoother, and concsals much Of the
working parts. Ii also lacks the
equalizet ion between the weights on
the several wheels. Even the heavy
plate frame of the truck, the smoke
stack deflector and the outside steam
pipes, all mark 1t as non-Amerionn.
The arrangement Of the four cylinders
upon the engine is the reverse Of the
engines OF American build. The boiler
will have l39 tubes each 23z inches in
diameter, IA feet 514 inches in length.
The engines are, it is understood, to
be tried out upon the local lines of
the Pennsylvania.