Black and white photograph. One male with right hand on wheel of control valve in the compressed air pipe outlet of a two stage or compound air compressor with con rod and crank shaft to a large flywheel. Two belts to a vertical governor. Outgoing air pipe vertical to ceiling of enclosing building. Inscriptions: Nameplate or bed plate 'A Roberts and sons, Engineers, Bendigo' Lower left corner handwritten 'with A Rob. Compliments' On back - 'Compound Air Compressor'.machinery, compressors, compound air compressor, worker, male

Buff cover, maroon spine booklet. On front cover: Instruction Pamphlet No. C 2, January 1930, Cross compound steam driver air compressors, Westinghouse Brake Company of Australasia, Ltd., Concord West, N.S.W.Westinghouse Brake companycottage, miners, badham, victorian railways, westinghouse

The 1st edition of this famous work, giving an excellent account of the machinery used in late 19th century metal mining in the UK and overseas is very rare. It covers a wide range of equipment - pumps, steam engines, drills, winding engines, stamps & concentration mills, aerial ropeways, tramways and early uses of electricity etc. Brown hard cloth covered book. xvi 564 pages with additional advertisements, with over 300 illustrations and drawings, some fold out. Chapters include Water as a motive power, Wind engines and ventilating machinery, Steam boilers/engines and oil engines, hoisting machinery, draining of Mines, pumping engines, rock drilling machinery, boring machinery, concentration machinery, sizing and classifications trommels, joggers and jigging, fine concentration, milling of gold ores, milling of silver ores, amalgamation plates and machinery, dry and roasting machinery, chlorination and cyandide processes for the extraction of gold, electricity as a motive power for mining, electric lighting and blasting, aerial wire ropeways, transport by rail and road. There a a number of lovely line illustrations in the book including: Poncelot's undershot waterwheel; Fromont furnace;Victor turbine; Pelton waterwheel; Root's positive blower;Cross section and front elevation of Lancashire boiler; Robey's Compound Mill Engine; Portable Winding Plant; Iron Pit Head Gear ; Loading Arrangement in an Incline Shaft; kibble; Worthington Pump; California Pump; Scram's Air Compressor; Rock drill Bits; Special Sharpening tools; Boring tools;Rotating Picking table; Ore Feeder; roller crusher; stamp battery; round buddle; slime table; vanner; amalgamating plant; belt elevator;roasting furnace;splicing wire rope; capel; tipping waggon;mining, cornish pump, linkenbach table, water wheel, ventilation, oil engine, california, america, water, steam boilers, steam engines, oil engines, pumpimg, rock drilling, boring, jiggers, milling, silver, gold, drying and roasting, chlorination, cyaniding, lead, zinc, copper, electricity, electric lighting, wire ropes, transport, wind engine, poppet head