...connected at the upper level by two horizontal walkways, and a central pair of bascules that can open to allow shipping..
Em Blog de Ricardo Pires
«Rodinei, quando o lateral fizer o overlap pela linha, preciso que bascules por dentro e faças a compensação ao pivot na zona central em bloco
Em O INDEFECTÍVEL
The sight of this phalanx passing beneath Tower Bridge with its bascules as yet unraised, brought a lump to the throat..