High-speed packing machine at XL Crisp Factory May 1960 South Yorkshire Times May 23rd. Employees at work on the second new high-speed packing machine to be brought into use at the XL Crisp factory at Conisbrough. Other articles you might be interested in High-speed packing machine at XL Crisp Factory Crisper Packaging – New machine for Conisbrough Factory. Crisper Packaging – New machine for Conisbrough Factory. Ambitious Extensions by Conisbrough Crisp Makers