Rhymney Engineering Co
1946 Company established jointly by Powell Duffryn and International Combustion Ltd to take over an engineering works at Rhymney that Powell Duffryn had been operating during the war. The company would manufacture mining machinery, materials handling plant for collieries and power stations, and other specialised engineering products[1]
1962 Mainly concerned with mining machinery. Launched the first British all-hydraulic crawler mounted excavator through Peter Hamilton Equipment Ltd, which was marketed as Hy-Mac[2]
c.1966 Supplied automatic unloading equipment for use with the coal trains supplying Ferrybridge C Power Station. This used ultrasonic detection to control the door-opening gear to empty 5 wagons at a time into the bunkers and was capable of dealing with up to 99 wagons in a train.