'Well sweep' 'Thulaa' - Tamil, 'Aandiya lindha' - Sinhalese, was seen in almost every well in the Jaffna peninsula, Sri Lanka, in the 1950s.

The well sweep, with the cemented channel to conduct the drawn water to a cement lined tank to contain the water.

Thirsty cattle were welcome to drink the water

The wells were quite deep as the aquifer was found below the limestone rock layer.
The height of the sweep indicated  the depth of the well. There was a saying in Tamil '  Aalakkinathukku neelath thulaa'.
This sweep was in active  use at the 'Sivan Kovil' Point-Pedro in 2012 when I took this photo.