Re: Type C/UP trucks

Posted by Phil Wiborg on Apr 24, 2020; 3:38pm
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Type-C-UP-trucks-tp15497p15553.html

Hello:

I've been lurking here for years.  I am impressed with the depth
of knowledge displayed by the members of this forum.  A subject has
finally come up that I feel I have something to contribute to.

In 1981 I discovered a UP marked swing motion freight truck on
display under a wood passenger car by a Casino just West of
Boulder Dam.  Since I was planing to make some notes and measurements
of parts on the then on display "Eureka" at Henderson, NV, I was prepared
with pencil, paper, tape, and camera.

One of the trucks looked like one under discussion here.  It's castings had
"UP" lettering all over them.  I was sure I had found a South Park truck, or
at least, a UP truck like ones used on the South Park.  So I spent some time
generating some "field notes" of the truck.  I offer the notes to the group
for study and comment.

There are 3 drawings: the first two are my field notes:




The third is an  "after visit" drawing of the journal box and lid.  The journal
box is from the field notes; the lid is from the Pictorial Supplement, P.446.



I also share one poor photo.



Jim earlier observed that the circular opening was not centered
vertically between the side bars in the photo's
previously published here.  I didn't notice this at the time of
my visit, one way or the other; I think my photo is inconclusive.
The truck I visited did have a 4-spring cluster at each end
of the swing beam (poorly sketched in my notes), not the single
coil spring pictured and discussed earlier in this thread.

So, is this the truck under discussion, or is it perhaps a different,
"light" version?  It did have a 48" wheel base and 24" wheels.

Phil Wiborg