Volume Six - Pre-Victorian to the Present Day - Select Aspects - Reconstruction of Three Tips - 1912 - 17 . . .

The cradle is to be carried on flexible steel wire ropes, passing around the hydraulic ram sheaves, and the end of each rope is to be provided with a spring of approved design, to take the shock of starting the gear in motion.

Cradle stops must be provided on the tip structure, so that the cradle may rest on them when receiving the wagon at the high level platform. These cradle stops to be made capable of being operated by the man working on the high level bridge.

Handrails must be fixed in front of the cradle and at the sides for the protection of men working upon the cradle. Two supplemental platforms, one on each side, are to be constructed on the main platform, high enough to enable the Tippers to see into the wagon when it is being tipped at its maximum height.

Brackets must be fitted to the front ends of the cradles with moveable slide bars, which will, when required, engage in the shute shaft, so as to lift or lower the butt of the shute when necessary.

A hook and chain, fastened to the cradle must be provided, to couple on to the draw-bar hook of the wagon, to prevent it, when being tipped, going over the shute.

The shute of the tip must be constructed to the drawing supplied by the Company, and arranged so it can be easily moved up or down, as may be required for tipping at various heights. It must also be provided with three moveable extension pieces, 10 feet, 6 feet, and 3 feet long respectively.

The point of the shute is to be raised or lowered by a suitable hydraulic engine and gear, which must be approved, placed conveniently in the structure, and actuated and controlled from the cradle platform, the engine to be capable of lifting the point of the shute when full of coal and with the largest point piece on.

Appliances must also be fitted so that the point of the shute may be radiated 5 feet to the right or to the left of the centre line of the tip, separate engines and gear being provided for each side of the shute. All connecting pipes for these engines to be of copper.

The shute must be fitted with two wing doors working on hinges, these doors being carried down to the nose of the shute and fitted with suitable chains and attachments to control the run of the coal, as shewn on the Drawing, and also fitted with wing guide plates to prevent coal from falling over the side of the butt of the shute.