Manual used for training purposes of Navy Personnel in relation to Naval ships and other related equipment.Stapled book of 104 A.4 pages, green cover with image of individual working on large ship anchor chains. Contents cover all aspects of corrosion maintenance of Navy Equipment.Headed: "BASIC CORROSION CONTROL". Stamped at bottom "DPS No M5041". "30/9/2003".royal navy, training manual, corrosion control

AAP 7213.003-23

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

Stirrups are essential equestrian equipment, providing the rider with support, balance, and control. The bottom iron stirrup likely belonged to a working or farm horse. Dating: The designs suggest late 19th to early 20th century usage.Bottom Stirrup - Made of iron or steel, showing heavy rust and corrosion. Traditional D-shaped frame, typical of older or more utilitarian saddlery. Flat, broad footrest with some pitting and degradation due to oxidation. Appears more heavily used or exposed to elements over time.stirrup, farm equipment, horse equipment