Re: tank car question


---Note the end of the bottom most car in the overlaps the
sides of the cylinder of the car...and two sizes of rivets. I don't
recall ever seeing that before? Mark Feddersen

In STMFC@..., Richard Hendrickson <rhendrickson@...>

On Feb 26, 2009, at 3:57 PM, Kurt Laughlin wrote:

----- Original Message -----
From: Richard Hendrickson
The three compartment car appears to have been a 6,000 gal
single compartment car converted to three compartments. Such
conversions were fairly common (more often, though, on 8,000 gal.
cars), especially on GATX cars.
----- Original Message -----

How would they do that? I suppose they could take off the heads
the new ones inside the shell, but my guess is that the inside
far from
a perfect cylinder which would make "sliding" heads in and
a good
circumferetial seal very difficult.

Nevertheless, that's exactly how it was done, Kurt. I've
thought that they probably un-riveted the top seam, as well, since
they would have had to cut new openings for the end domes and bore
new holes for the dome flange rivets. But I've never found either
photo or a witness's account of exactly how it was done.

Richard Hendrickson

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