allowing the train to proceed back to its cars, couple up, and
shove to Beisser Lumber.
Once in Grimes, the conductor again dismounts and begins
unlocking and opening all the equipment, including the turn-
out, derail, and industry gate.
As the train pulls empties and
spots loads, the turnout at the
Beisser spur will be thrown
from the open to closed posi-
tion many times. However, the
switch will be left unlocked
while the crew works Beisser
to expedite their tasks. Once
the tasks are complete and the
crew has reassembled their
train on the main, the conduc-
tor will relock the gate, derail,
20
20: When unlocked, the
weight of the shim pulls
the wire down, allowing
the switch to be thrown.
The lowered cam arm and
the roofing nails prevent
the shim from falling out
of the sub-roadbed.
