An old small size manual (Human Powered) crane with a pivoted boom at Colombo Docks dispatching Tea in 1885.
The incline of the boom is controlled by means of chains, sprockets and gears.
An old small size manual (Human Powered) crane with a pivoted boom at Colombo Docks dispatching Tea in 1885.
The incline of the boom is controlled by means of chains, sprockets and gears.