Gwelo_shed_coaling_plant. Steam in Southern Africa: Rhodesia 1973. Approached between two magnificent Jacaranda trees, Gwelo shed’s coaling plant was a remarkably complex affair! Coal was delivered in wagons, emptied by a grab crane into a hopper, to travel up two conveyors, to the top of the tower. From there it spiralled down into locomotive tenders, as required, passing through a sieve device which separated lumps that were too small, they being diverted via a chute, back into the coal wagons. In other words, from delivery to locomotive, the coal went through a complete mechanical circle! roger.griffiths@hotmail.com