Figs. 300 and 301 illustrate such a " stacker " made by Rownson, Drew, &
Clydesdale, Ltd., while other makers of similar devices are the Alvey-Ferguson Co., of Manchester; the Ewart Chainbelt Co., of Derby; the Hepburn Conveyor Co., Ltd., of Wakefield; W. & C. Pantin, of London; and Spencers, Ltd., of Melksham, an\l others.