Re: PM box car - unusual ends?

Tim O'Connor

lol - and a third candidate term! I started with Ed Hawkins' nomenclature
where he assigned a specific code to each type of end. In my opinion that's
really the only solution - a kind of scientific notation for freight car ends.
I expanded on Ed's and I keep them on file as my own reference

 5/5/5 MUR     Murphy end
   7/7 MUR     Murphy end
 3/3/3 DN      dreadnaught (some early auto cars)
   4   DN      dreadnaught (gondolas)
   4/4 DN      dreadnaught
   4/5 DN      dreadnaught
   5/5 DN      dreadnaught
   4/4 DART    "dartnot" or ACF Car Builder end (1950-1954)
   4/4 IDE     "rolling pin"
   4/4 IDE-2   "rolling pin" w/ short top rib
   3/4 IDE     "rolling pin" w/ extra narrow top rib
   3/4 IDE-2   "rolling pin" w/ no extra narrow top rib
 R-3/4 IDE     "rolling pin" w/ rectangular top rib (postwar to 1954)
 R+3/4 IDE      - alternate
 R-3/4 TDE     "tapered rib" w/ rectangular top rib (1955 and onwards)
 R+3/4 TDE      - alternate
   4/4 TDE     "tapered rib" w/ no rectangular rib
 3/3/3 TDE     "tapered rib" w/ no rectangular rib
   x/x PSE     Pullman Standard end
     x NTE     Non Terminating End

          -r   modifier indicates rivet seams
          -w   modifier indicates welded seams

   ... IV..    "inverse" pattern (mirror image)
   ... RV..    "reverse" pattern (inside out)

On 8/25/2019 3:02 PM, Tony Thompson wrote:
Tim O'Connor wrote:

You're looking at the backside view of most dreadnaught ends (with variations
in the number of ribs and panels). Some call them "reverse dreadnaughts" and I've
heard "inverse dreadnaught" as well.
     I don't see this as a reverse end at all. I think people are being confused by the two wider ribs, probably located at seams where pieces of the end are joined together. It might be a RECESSED end, in which the corrugations look pressed INTO the end, rather than proud of its surface, but I'm not sure if that's the case.

Tony Thompson

Tim O'Connor
Sterling, Massachusetts

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