Eleven page article titled Water Softening in the Boiler by the 'Alfloc' System. This is an internal method of conditioning boiler feed water and the use of coagulants designed to prevent scale formation in the boiler and accessory plant, to reduce corrosion to a minimum, and further to provide for those conditions in the boiler water which from present experience are believed to prevent the occurrence of caustic ombrittlement. Different chemicals were used to suit different types of water in different areas. Items discussed are: Summary, Introduction, External treatment, Internal Treatment, General Principles of the 'Alfloc' Internal Treatment, Precipitation of the Scale-forming Salts, Temporary Hardness, Permanent Hardness, Conditioning of the Precipitate - Floc Formation, Efficient Control of the Concentration of both Dissolved and Suspended Solids by Blowdown, Prevention of Corrosion, Testing and Control, The 'Alfloc' Reagents for Internal Treatment, 'Alfloc' Liquors, 'Alfloc' Briquettes, Alfloc' Powders, Methods of Application, Liquors - Stationary boilers and Locomotive boilers, Briquettes - Stationary boilers and Locomotive boilers, Powders, Blowdown, Sludge, Caustic Embrittlement, Control of 'Alfloc' System, Cost and Economies of 'Alfloc' Internal Treatment and 'Alfloc' Water Treatment Service. Listed on page 11 are ICIANZ Sales Offices the Australian States. Between pages 7 and 8 is a page of diagrams. They are: Showing method of feeding liquors to the feed tank of boilers for 'Alfloc' internal treatment, typical arrangement of pressure vessel and typical arrangement of 'Alfloc' by-pass feeder.sciences, instruments - general, scalebuoy, bill ashman collection, alfloc system, imperial chemical industries limited alkali division, alfloc liquors, alfloc briquettes, alfloc powders, imperial chemical industries of australia and new zealand limited, elder smith & co limited, chemical & textile agencies pty ltd

Nobel Industries Limited was founded in 1870 by Swedish chemist and industrialist Alfred Nobel for the production of the new explosive dynamite in the United Kingdom. Ardeer, on the coast at Ayrshire, was chosen for the company's first factory. Between 1877 amd 1926 it was known as Nobel’s Explosives Company Limited. The business later diversified into the production of blasting gelatine, gelignite, ballistite, guncotton, and cordite. At its peak, the factory employed nearly 13,000 men and women. In 1926, the firm merged with Brunner, Mond & Company, the United Alkali Company, and the British Dyestuffs Corporation, creating a new group, Imperial Chemical Industries, then one of Britain's largest firms. Nobel Industries continued as the ICI Nobel division of the company. Small black timber box with small screw holding back on, and leather handle on top. A pivoted needle remains vertical as box angle changes. Graded scale behing top end of needle. Two adjusting points at top.No 10070nobel, ballarat school of mines, scientific instruments, galvanometer