As with Andrews trucks, early Vulcans had L-section side
frames (12) but later ones employed stronger U-section side
frames (13).
12
12: Vulcan trucks had separate journal boxes, like
Andrews trucks, but in the Vulcan design the boxes fit into
pedestal jaws and were secured in place by transverse
bolts at the top. This is a T-section Vulcan truck.
13
13: A later U-section version of the Vulcan design. The
bolts that held the journal boxes in place are visible
behind the journal box lid springs.
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