The tension on the knuckle translates into sheer stress on the pin. You can
see an animation of coupling/uncoupling action at
http://www.trainweb.org/railwaytechnical/design%20details.html#Couplers
Cast iron drawbars where rated at 250,000 to 280,000 lbs. Newer steel units
can withstand up to 500,000 lbs. AA Krug has a discussion at
http://www.vcn.com/~alkrug/rrfacts/drawbar.htm
Bob
----- Original Message -----
From: <jsteamernubes@aol.com>
To: <CBQ@yahoogroups.com>
Sent: Sunday, June 13, 2004 9:09 PM
Subject: Re: [CBQ] How does a coupler work?
> The pin holds the coupler together, but the insides of the knuckles, the
> pulling face, takes the stress, I think.
>
>
> [Non-text portions of this message have been removed]
>
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> Yahoo! Groups Links
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