There is evidence that experiments were made with windlasses, mounted athwartships, before settling for the admirable double-wheel and drum.
Ikhona into ebinisayo ukuba ukufunisela bekwenziwe, isixhobo sokutsala okanye sokunyusa into ngentambo, ekunyuka ekwenzeni isihlalo sombhexeshi phambili kokuhlal kokubukeka kwamavili aphindiweyo kunye negubu.