Previous to this invention,all flat glass was cut from cylinders or disks of blown glass,but now the metal was poured directly from the pot onto an iron table and flattened with an iron roller.

• 在这一发明前，所有的平板玻璃都是从吹制玻璃的圆柱体或圆盘上切割下来的，现在则是将玻璃熔液直接从熔化罐倒在铁板上，用铁棍压平。