(R) and can be pivoted to and fro through a predetermined angle about a horizontal axis by means of a drive, a centrifugal device (T) being provided above the trough (S) in order to produce a cleaning blast of sharp sand, metal scrap, steel grit, steel shot or the like directed ...
Sophie Lake, co-project manager, said: “We knew that many heathland plants benefit from significant disturbance but there was a sharp intake of breath when we took the decision to drive up and down over a beautiful colony of 3,000 plants in a five-tonne tractor brandishing...