The other day I saw a picture of a Santa Fe steam engine having its tires
"trued" near Fort Madison, Iowa in 1950. This was not being done in a shop but
was accomplished "in situ" -- the locomotive being under full steam in the
yard. The ground was littered with metal shavings from the work being done.
Apparently, the operation required the assistance of a Ledgerwood. I had never
seen this procedure before and I was wondering if someone on the list could
supply some more information about it. Was it common? I always associated
Ledgerwoods with logging operations. What else were they used for?
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