8
8: A T-section Andrews truck. By this time, the journal
box retainer bars were shorter and bolted to bosses
cast onto the side frame, rather than to the bottom of
the side frame. The plate on the end of the bolster was
a later addition.
9
9: The Andrews design progressed to U-section side
frames, as shown in this example. Again, note the oak
shim between the springs and spring plank.
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