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Path: utzoo!linus!philabs!cmcl2!seismo!brl-tgr!tgr!Dan_Bower%RPI-MTS.Mailnet@MIT-MULTICS.ARPA
From: Dan_Bower%RPI-MTS.Mailnet@MIT-MULTICS.ARPA
Newsgroups: net.railroad
Subject: Thermal Expansion
Message-ID: <1677@brl-tgr.ARPA>
Date: Mon, 23-Sep-85 20:32:31 EDT
Article-I.D.: brl-tgr.1677
Posted: Mon Sep 23 20:32:31 1985
Date-Received: Wed, 25-Sep-85 12:27:30 EDT
Sender: news@brl-tgr.ARPA
Lines: 6

The whole idea of rail anchors is to restrain thermal expansion.
When rail temperature changes, a force of expansion or
contraction exists, i.e., it *wants* to expand or contract. That
doesn't mean that you have to let it. If the holding force of the
rail fastenings exceeds that of expansion or contraction, the
rail stays put.


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