... was as shown in Table I11 (p. 10). 10 WHITEIIOUSE ON SOME METHODS OF GOLD-blINING. [Minutes of The mines of the Witwatersrancrduasnhnually about 29 million tons, and the gold recovered is equal to approximately 28s. per ton or a total of ~41,000,000. Theore is crushed by stamps of the Californian type...

...F H HATCH © Thomas Telford and ICE 1911 GOLD MINING INDUSTRIES HISTORY GOLDFIELDS CYANIDATION MILLS STAMPS LABOUR VENTILATION UNDERGROUND TRANSPORT MINES HAULAGE MACHINERY DRILLS POWER TRANSMISSION ORES RESERVES CYANIDE MILLING DUST CONVEYORS SAND FILL FILLING...

... that time the mine has been owned and workedby Prince Shimazu sdescendants.Formerly the mine was chiefly worked on lease, i.e., certain portions of the mine were let to tributers, who worked them and treated the ore a t their own mills, which generally consisted of ten to twenty wooden stamps, each of 80...

...E J WAY 252 W A Y ON STdMP-MILL REDUCTION-PLANT. [Selected (Paper No. 3631.) Stamp-MiRlleduction-Plant of the New Kleinfontein Company, Limited,Witwatersrand,Transvaal. By EDWARJDOENWAY,Assoc. AT. Inst. C.E. ON the 26th December, 1900, a raid was made by a party of Boers against the property...

...A FOX(JUNIOR) © Thomas Telford and ICE 1906 PROCESS REDUCTION SILVER ORES TREATMENT MILLS BATTERIES STAMPS FURNACES MACHINERY FILTERS AMALGAMATION CAYLLOMA PERU 324 FOX ON THEFRANCKE-TINd PROCESS [Selected (Paper No. 35 71.) '' The Francke-Tina Prooese...

...G A DENNY © Thomas Telford and ICE 1906 DESIGN WORKING GOLD MILLING EQUIPMENT MACHINERY MILLS STAMPS FOUNDATIONS BLOCKS ORES COSTS WITWATERSRAND SOUTH AFRICA Papers.] DENNY OS GOLD-MILLIKG EQUIPMENT. 243 (Paper No. 3623.) Design and Working:of Gold-Milling...

...H J S HEATHER ELECTRIC ELECTRICITY TRANSMISSION GOLDFIELDS MINES HYDRAULIC WORKS WATER POWER HYDROELECTRICITY GENERATION PLANT GENERATORS CONDUCTORS SWITCHBOARDS MOTORS LIGHTNING TESTS DISTRIBUTION STAMPS MILLS REGULATORS TRANSFORMERS ARRESTERS INSULATORS FAILURES...

... Telford and ICE 1892 GOLD QUARTZ REDUCTION CRUSHING PULVERISING ORES ROLLERS METALS MINERALS MACHINERY PULVERISERS PYRITES ROLLS ROLLERS GRAVITATION STAMPS MILLS Proceedings.] DISCUSSION ON GOLD-QUARTZ REDUCTION. 135 Discussion. Mr. A. H. CURTISsaid he wished before...

... STAMPS ROLLERS GRINDING MILLS ROLLS MACHINES PULVERISING CRUSHING ORES Proceedings.] DISCUSSION ON GOLD-QUARRETDZUCTION. 177 sufficient to pay when the material was properly worked, they Mr. Giles. could see how imperative it was that themachines for reducing the oreshouldbe of the most...

...A H CURTIS © Thomas Telford and ICE 1892 GOLD QUARTZ REDUCTION CRUSHING PULVERISING MACHINERY ROCKS MINERALS METALS EXTRACTION ORES PYRITES PULVERISERS STAMPS GRAVITATION ROLLERS BALLS PNEUMATIC GRINDING ROLLS Proceedings.] CURTIS ON GOLD-QUARTZ REDUCTION. 97...

...R J FRECHEVILLE © Thomas Telford and ICE 1884 MINING TREATMENT GOLD ORES MINES WASHING STAMPS MILLS APPARATUS MACHINERY VEINS MINERALS AMALGAMATION CONCENTRATION SAND HONDO OKUDZU JAPAN ASIA Selected Papera.] FRECHEVILLE ON TREATMENT .OF GOLD ORES. 169 SECT...

...C J APPLEBY; J A F ASPINALL; M B FONTAINE; W BOYD; D DRUMMOND; D GREIG; H ROBINSON; C P SANDBERG; W SHEARS; R H TWEDDELL © Thomas Telford and ICE 1883 MACHINES TOOLS MACHINERY HYDRAULIC RIVETING WELDING EXPANSION TUBES FLANGES FORGING TRANSMISSION STAMPS STEAM HAMMERS...

...A MCDONNELL IRELAND GREAT SOUTHERN & WESTERN RAILWAY STAMPS WELDING STEAM HAMMERS IRON FORGING MACHINERY MACHINES STAMPING COSTS WELDS WAGONS RAILWAYS ROLLING STOCK METALS PLANT IRONWORKS INCHICORE IRELAND Fig:l. r L I II. WAGOHNINGPEIN I I UU S M A L L...

...J HENDERSON DRESSING TIN COPPER METHODS ORES STAMPS MACHINERY MACHINES BUDDLES PACKING FRAMES JIGGING CLEANSING CLEANING SEPARATION MINES MINING SEPARATORS CORNWALL ENGLAND UK February 2, 1858. JOSEPH LOCKE, M.P., President, in the Chair. The following...