Descrizione

39 pages. Features: Power Supplies for Large Buildings; Parallel Working of Alternators Simply Explained; Applications of Photo Cells to Mechanical Handling; Modern Methods of Battery Charging; A.C. Carbon Arcs; Electric Heating in Industry; Current Limiting Reactors; The Strowger Photo Tlelmetering System; Control gear for A.C. Motors; Power Factor Correction Plant; Recent Patent Specifications; Engineer's Experiences. Cigarette smoke odour. Small quantity of "nibbling" to top corner of front cover and first few leaves. Well worn but intact. Blue and orange front cover features picture of the vessel Queen Mary in an advertisement for Callender Cable which supplied 650 miles of cable for its construction. Two-colour center-fold advertisement for Crabtree Automatic Control Gear manufactured by J.A. Crabtree & Co. Ltd. Unmarked. Book