trip sill
trip sill · trip sills
A timber placed across the bottom of the sluiceway in a splash dam, against which rest…A timber placed across the bottom of the sluiceway in a splash dam, against which rest the planks by which the dam is closed.
Meaning
1 sensesA timber placed across the bottom of the sluiceway in a splash dam, against which rest the planks by which the dam is closed.