... topic: 640 Catch points detail posted: 25 Nov 2008 15:22 from: Martin Wynne Another fine pic from Mick Nicholson, showing a set of catch points in detail. The left-hand switch blade is in need of adjustment. catch_points.jpg© Mick Nicholson Martin. posted: 25 Jan 2009 23:04 from: Howard Did some catch points only have blades on one side? Howard posted: 26 Jan 2009 18:22 from: lippydavies Yes some recently removed from Conisborough where one sided. Lee posted: 28 Jan 2009 11:43 from: Martin Wynne Howard wrote: Did some catch points only have blades on one side? Hi Howard, With a single blade it is called a "catch point". With two blades it is a "set of catch points". A trailing single blade catch point is most often found used as a "runaway catch point" in a rising gradient on double-track running lines. It is sprung in the open position and closes by the action of the wheels. After each ...