GREEN'S IMPROVED PATENT FUEL ECONOMISER FOR STEAM BOILERS by E.GREEN & SONS LTD

WAKEFIELD: E.GREEN & SONS LTD 1925 6th edition.. black cloth with paper title on top board and spine. 8vo. Catalogue P502-1. The economiser was a feed water heater in widespread use with stationary steam plant. This work is an account of its history and development, and a fairly detailed description and account of its operation. 145pp plus folding drawings at rear. Many illustrations, some nice colour plates. Nice plates of actual installations Greens were the major manufacturers of this type of plant. produced on art paper. Original semi-limp cloth covers, Fair condition a little marked and edges a little worn, spine split on edges. Scarce sales brochure .