Today gave us a chance of seeing one of the Rail Grinders in daylight. National rail C2103 named “Martin Elwood” and numbered DR7251-DR79257 (each of the seven units has a number) was returning from Tavistock Jnc yard at Plympton to Cocklebury yard at Swindon. The profile of rail should have a curved top but with use wears down to a flat surface. These machines grind the rail back to the correct profile and this saves a lot of wear on the traffic passing over the rail lines.
The video is a compilation of the grinder passing through Teignmouth station and then onto the sea wall at Dawlish with footage from the Blenheim camera and finally as it approached the Rockstone (or Black) Bridge.