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RE: (erielack) CWR - made in Salamanca



Listers,
   
  The pull aparts are at the angle bars and bolts, not at welds.  The rail shrinking back shears the bolts right off.
   
  Rich P

Schuyler Larrabee <schuyler.larrabee_@_verizon.net> wrote:
  
So, do these pull-aparts happen at the welded joint? Always? Or are there other breaks at faults in
the rail?

SGL

> Paul,
> 
> Cold weather pull-aparts are very common. They usually 
> happen just after the first frost and when temperatures drop 
> below zero for the first time.
> 
> When I worked for the UP as a train dispatcher, I would 
> dread having to work on one of the first cold nights of the 
> fall. At times you could have as many as 8-10 pull-aparts 
> across your territory.
> 
> Rich P
> 
> Paul Brezicki wrote:
> You would certainly think that, but I've never actually 
> come across a cold weather pull-apart. Have you?
> 
> Paul B
> ----- Original Message -----
> From: Dlw1el2_@_aol.com
> To: doctorpb_@_bellsouth.net
> Cc: erielack_@_lists.elhts.org
> Sent: Saturday, October 14, 2006 10:45 AM
> Subject: Re: (erielack) CWR - made in Salamanca
> 
> 
> In a message dated 10/14/2006 7:24:14 A.M. Eastern Daylight 
> Time, doctorpb_@_bellsouth.net writes:
> That reminds me, CWR was best laid in hot weather when it was 
> at or near maximum expansion. If not, it could buckle and 
> kink during extreme heat. We had problems with that on CN in 
> Ontario in the 70's, and I think it caused a derailment. CSX 
> also had problems with this several years back.
> 
> Paul B
> 
> But then this increases the chances of pull aparts in the 
> winter. Both scenarios show the importance of rail anchors.
> 
> Bob B
> 
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