Pattinson's process \Pat"tin*son's proc"ess\ (Metal.)
A process of desilverizing argentiferous lead by repeated
meltings and skimmings, which concentrate the silver in the
molten bath, the final skimmings being nearly pure lad. The
processwas invented in 1833 by Hugh Lee Pattinson, an English
metallurgist.
[Webster 1913 Suppl.]