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Re: [CBQ] Digest Number 5749

To: CBQ@yahoogroups.com
Subject: Re: [CBQ] Digest Number 5749
From: William Barber <clipperw@gmail.com>
Date: Tue, 24 Dec 2013 08:31:13 -0600
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Phil and John,

Thank you for the information. I was thinking that at some point, ICC/FRA had specifically outlawed truss rods in interchange service. Based on your information, I suspect that the stock car in the photo at Shabbona in on Oct. 16, 1956 was equipped with a steel reinforced center sill. I suspect that it's days were numbered as was the movement of livestock by rail.

Bill Barber
Gravois Mills, MO

On Dec 24, 2013, at 4:57 AM, CBQ@yahoogroups.com wrote:

Mon Dec 23, 2013 10:36 am (PST) . Posted by:

"Philip Weibler" pawnbaw@sbcglobal.net

Hello Bill and All -
Truss rods were an integral part of the design of wood framed cars. As the cars started to sag from age
the truss rods would be snugged up to restore some semblance of level and square.
Early on, the AAR (Association of American Railroads) or predecessor ARA put out requirements that
freight cars had to have a steel center sill that could take specified draft and buff loads. The intent was to
have all interchange freight cars strong enough to hold together in the typical freight train of the day.
Older cars were fitted with a steel center sill that used the existing draft gears and small shank 'D' couplers.
This was not a steel underframe and it did not support the car structure, so the truss rods remained on the cars.
I saw a number of truss rod cars in interchange service into the early 1950s.  Of course, they hung around for
quite a while after that in work service.
Possibly-probably (I'd have to do some diggin') when the 'E' coupler was made the standard for interchange
these old cars were just scrapped - the railroads were too cheap to buy new couplers and draft gears.
I did a paper many years ago about archbar trucks.  It took almost twenty years to get them banned from
interchange, what with all the foot-dragging by the railroads and especially the private car companies.
The change-over would utilize the existing wheels and axles, bolsters, brasses, and brake beams, and require
the purchase of new cast steel side frames.   During the Great Depression a brand new cast side frame
cost less than two dollars.                                                                         PAW

________________________________
From: William Barber <clipperw@gmail.com>
To: CBQ@yahoogroups.com 
Sent: Monday, December 23, 2013 9:49 AM
Subject: [CBQ] Re: 1956 Empty stock cars eastbound


  
 do have one question. The lead stock car clearly has truss rods. Weren't truss rod equipped cars outlawed for interchange service at some point in time?

Bill Barber
Gravois Mills, MO

Mon Dec 23, 2013 11:35 am (PST) . Posted by:

"John D. Mitchell, Jr." cbqrr47

Truss rods per se were never "outlawed"; but first, wooden underframes were banned and then wooden underframes with steel center sills were banned. Truss rods were used with both types of underframes but some all steel underframe designs also used them, mostly on passenger cars, but on some freight cars as well.



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