Kelli ladled out the contents of the kettles onto each plate.
When it has completely cleared, the liquid caustic is ladled or pumped out into sheet-iron drums, holding about 6 cwt.
Directly work is suspended the glass remaining in the crucibles is ladled into water, drained and dried.
The molten sulphur accumulates on the sole, whence it is from time to time run out into a square stone receptacle, from which it is ladled into damp poplar-wood moulds and so brought into the shape of truncated cones weighing 110 to 130 lb each.
All the earlier attempts in this direction failed on account of the difficulty of bringing the glass to the machines without introducing air-bells, which are always formed in molten glass when it is ladled or poured from one vessel into another.