The Topeka state journal. [volume] (Topeka, Kansas) 1892-1980, 1914-04-18
Additional Features in Roads
Motive Power.
Massive Machinery Here for
the Final Touches.
Description of Late Purchases
From Baldwins.

DeI1VerleS OF the newly purchased
balanced compound Pacific type passen-
ger locomotives Just purchased by the
Santa Fe are being received in Topeka
daily where the engines are placed in
shape for service on all parts Of the
system. Fourteen of the IS new loco
motives will be used on the eastern
lines. six on the western lines and 15
on the coast lines.
In the last three years, the motive
power department of the Santa re
system, acting in conjunction with the
Baldwin Locomotive works. has de-
veloped a most interesting series OF
balanced compound Pacific type loco
motives for express passenger service
This series now includes lis engines,
which have been distributed over dif-
ferent parts of the system. These To-
comotives are generally alike, but the
details have been improved in success
sive orders, to better meet the require
ments OF the service.
Success of the Compound.
The Santa Fee has long recognized.
not only the advantages to be de-
rived from compromising, such as In
creased capacity and economy, but also
the fact that compound locomotives
must be suitable for the service. in
diligently handled. and properly main
tanned. This policy has been persist
emily carried out. and to. it the sue
cess of the balanced compounds Is
largely due.
The Pacific type locomotives to which
reference has been made. embody
cylinder arrangement first introduced
in locomotives of the Prairie type which
were built for fast freight service in
1906. The INSIDE or high pressure CYL
inders, are elevated and inclined SO that
their main rods pass above the first
driving axle. This arrangement pre-
serves the simplicity Of the original
Vauclain balanced compound, and at
the same time avoids the necessity of
using bifurcated inside rods in order
to clear the first driving axle.
Thirty-five locomotives constitute the
order now under notice. OF these, IA
burn oil, 20 bituminous coal, and one
Gallup coal, which is a species of lig-
mite. The bituminous coal burners are
further divided into two groups, dif-
ferences being made in the CRATES to
suit different qualities Of fuel. Wher-
ever practicable, the details Of these
engines interchange with correspond
ing parts of locomotives already in SER
vice: this having been the policy of
the road in designing all recent power.
New Baker Valve Gear.
These locomotives are the first bal
anced compounds built by the Baldwin
Locomotive works to be equipped with
Ing the gear are of vanadium steel, and
they are supported in a cradle which
is placed outside the leading drivers.
Ihe Ragonnet power reverse mechan-
ism is applied. The piston valves are
10 inches in diameter. and one valve
controls the distribution to each pair
of cylinders The high pressure lead is
1t1nch and the low pressure lead n.
Vacuum relief valves are applied, but
no bypass is used. AS the high pres
sure sections of the valves are ar
ranged for inside admission, the steam
pipes can be placed outside, deliver
ing steam to the centers of the steam
chests.
The frames are open hearth anneal-
ed steel castings, and the main sec
lions are 5 inches in width, as COM
pared to " inches for the previous
locomotives of this type. The width
between frame centers is "A inches.
AT the main driving pedestals each
frame is offset y thus increasing the
width between centers to As u inches.
RMS is done to provide more room for
the crank axle. The offset in the up
per rail is made in two steps, to facil-
1tate a more symmetrical ARRANGEMENT
of spring hangers. The crank axle is
or the seven piece, built up type: a
design which has given better results
IN service than any other form used
on this road. The trailing truck is of
~-C ASuSHNOA type, WIFI OUTSIDE jour-
mails.
Frame Bracing Feature.
In all the locomotives of this series
the transverse frame bracing has re-
ceived particular, attention; and the
difficulties which are always met in
bracing the frames of an fnside-con-
nected engine, have been success
fully overcome. The guide yoke
braces the frames just ahead of the
leading driving wheels. and also serves
as support for the forward end OF
the inside guides. Between the first
and second pairs of driving wheels is
a brace which has long bearing or
the upper frame rails, and extends the
full depth of the first driving pedes-
tails. This brace carries the valve mo.
ton bearer and supports the back enc
of the inside guides, and is formed
with suitable openings through which
the inside main rods pass. The frames
are also braced between the main anl
rear driving wheels and under the
front end of the fire box. The brake
cylinders are supported by a stee
casting which is placed Immediately
back of the cylinder saddle and which
strengthens the frames at that point
This arrangement of crossties provide!
ample strength and rigidity to resis
the stresses occurring in service.
The boiler is of the extended wag
on top type. with a maximum insid,
diameter of S2h inches. The Goa
burning locomotives are equipped will