APRONYM

purity
100% QUICK-ACTING BRAKEQuickly Used, Its Caboose Kills Acceleration Creating Traction In Need. Good Brakes Really Avoid Killing Engineers. Sean Lamb (http://www.geocities.com/gold27ca/gloss1a.html defines this as "A Modification by George Westinghouse of his automatic air-brake for quicker response at the rear of a train." Many train crews have been killed by runaways when the brakes failed.)
Transport:Trains
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