Handwritten letter from N.E. Russell of Elaine asking for information about the treatment of pyrites at the Ballarat SChool of Mines Laboratory. ballarat school of mines, elaine, n.e. russell, pyrites, ballarat school of mines model mine

Documents: Whitelaw Central Red White and Blue Mine Bendigo. 28 pages summary of gold mining correspondence - mortgage mining leases 943689340, contract of sale to Central Blue Gum GM 1933, leases with mining rights, treatment of pyrites agreement 1917 - J. Edwards & Co, Helen Streader - release of liability after being paid (pounds)125 by mine due to accidental death of husband 1912. Another for Ellen Lane 1916, list of titles held by Co , lease agreements Filcock and Manning, Andrew Harkness 'winding plant at mine' 1923, notice to perform agreement to Manning's 1916, Edwards Metallurgical Works 1917, map for 9777 Bendigo, contract for explosives with Dalgety & Co 1917, new scrip for lost shares 1917, Miner's Right 1911, sale of land Ra. A. Rankin 1910.MCCOLL RANKIN AND STANISTREETorganization, mining, central red white and blue, mccoll rankin and stanistreet.

R.M. Serjeant was listed as a mining manager and Joseph Flude as a metallurgist. In 1875 they were both living in Ballarat. The patent number is A.D.1875, 4th March. No 2031. According to the patent the hearth of the furnace is in the form of a cone revolving horizontally. The feed is supplied to the apex of the cone by an archimedian screw. The crown of the furnace comprises a double covering or roof with an intermediate chamber for receiving heated air. The inner covering is pierced to admit of the heated air being brought into contact with the pyrites on the face of the revolving hearth. The discharge of the roasted substance is affected by means of a scraper at the base of the cone. It was claimed that this was a new mode of introducing heated air, and the exclusion of flame during the operation of roasting pyrites. The self-acting charge and discharge of the furnace and the peculiar construction of the hot air chambers, and the use of perforated bricks through which the supply of air is affected were also new. (http://patentsvictoria.net/002031.html) From the Goulburn Herald, 14 September 1878 "A feature connected with the school of mines is the yet unfinished pyrites works. The extraction of the gold from pyrites and the utilization for commercial purposes of other substances connected with pyrites are peculiarly important to Ballarat, because were a simple and inexpensive method devised there are millions and millions of tons of quartz that would then be made remunerative. With this thought in their minds two scientific gentlemen invented the school of mines self-acting rotatory furnace. This, for lack of funds, has not been completed as yet, but the amount in hand for the purpose is daily increasing, and it will eventually be an accomplished fact. It is in contemplation also to erect machinery shops in connection with the school, and it is purposed to con struct a steam-engine to do at once the work of the pyrites treatment and the ma chine room. A model shaft and mine too are being prepared for on the reserve, so that practical mining of the most thorough character may be taught on the ground.'Large indenture on red bordered vellum. The indenture was regarding a patent for the benefit of the Ballarat School of Mines. Letters Patent for an Invention for Roasting Pyrites to be called 'the Ballarat School of Mines self-Acting Pyrites Furnace" to Robery Malachy Serjeant and Joseph Flude. The large document is on a vellum type paper complete with stamps and seal. The document is signed by Acting-Governor William Stawell. Inscriptions and Markings Written on verso: "Date of Patent 4th March 1875 No 2031 Letters Patent for An invention for roasting pyrities to be called "The Ballarat School of Mines Self-acting Pyrities Furnace" to Robert Malachy Serjeant and Joseph Flude Melbourne, Victoriaballarat school of mines, serjeant, r.m. serjeant, robert m. serjeant, flude, joseph flude, patent, barry, redmond barry, rogers, judge rogers, bland, rivett henry bland, john airy, warrington rogers, establishment, indenture, legal, cuthbert, ballarat school of mines trustees, william stawell, john warrington rogers

R.M. Serjeant was listed as a mining manager and Joseph Flude as a metallurgist. In 1875 they were both living in Ballarat. The patent number is A.D.1875, 4th March. No 2031. According to the patent the hearth of the furnace is in the form of a cone revolving horizontally. The feed is supplied to the apex of the cone by an archimedian screw. The crown of the furnace comprises a double covering or roof with an intermediate chamber for receiving heated air. The inner covering is pierced to admit of the heated air being brought into contact with the pyrites on the face of the revolving hearth. The discharge of the roasted substance is affected by means of a scraper at the base of the cone. It was claimed that this was a new mode of introducing heated air, and the exclusion of flame during the operation of roasting pyrites. The self-acting charge and discharge of the furnace and the peculiar construction of the hot air chambers, and the use of perforated bricks through which the supply of air is affected were also new. (http://patentsvictoria.net/002031.html) From the Goulburn Herald, 14 September 1878 "A feature connected with the school of mines is the yet unfinished pyrites works. The extraction of the gold from pyrites and the utilization for commercial purposes of other substances connected with pyrites are peculiarly important to Ballarat, because were a simple and inexpensive method devised there are millions and millions of tons of quartz that would then be made remunerative. With this thought in their minds two scientific gentlemen invented the school of mines self-acting rotatory furnace. This, for lack of funds, has not been completed as yet, but the amount in hand for the purpose is daily increasing, and it will eventually be an accomplished fact. It is in contemplation also to erect machinery shops in connection with the school, and it is purposed to con struct a steam-engine to do at once the work of the pyrites treatment and the ma chine room. A model shaft and mine too are being prepared for on the reserve, so that practical mining of the most thorough character may be taught on the ground.'Letters Patent for an Invention for Roasting Pyrites to be called 'the Ballarat School of Mines Self-Acting Pyrites Furnace' to Robert Malachy Serjeant and Joseph Flude. The large document is on a vellum type paper complete with stamps and seal. The document is signed by Acting-Governor William Stawell.Written on verso: "Date of Patent 4th March 1875 No 2031 Letters Patent for An invention for roasting pyrities to be called "The Ballarat School of Mines Self-acting Pyrities Furnace" to Robert Malachy Serjeant and Joseph Flude Melbourne, Victoriaballarat school of mines, serjeant, r.m. serjeant, robert m. serjeant, flude, joseph flude, richard gibbs, stawell, william stawell, pyrities furnace, philately, statute stamp, seal (victoria), ballarat school of mines self-acting pyrities furnace, ballarat school of mines self-acting pyrites furnace

M. Eissler A.I.M.E. was a member of the Institute of Mining and Metallurgy.Red Hardcovered book of 678 pages with around 250 illustrations and numerous folding plates. Contents include: gold mining in California, Gold as a metal; Hydraulic Process; treatment of Gold bearing Ores; Crushing and Amalgamation (Queensland, California); Mills; Buddle; concentrator; Roasting ores; Roasting Pyritic Ores; Hydro-Metallurgy; Chlorination; Electro-Metallurgy; Cyanide; Erection of a Cyanide Plant; Chemistry of the Cyanide Process; Spelting, CupulationCrushing ore; 160 stamp battery; Mill site and battery; causes of failure in gold mining, South African Gold Fields; Gold in Australia (pg 589) Advertisements include: Fraser & Chalmers; Bowes scott & Western Ltd; Fried. Krupp Grusonwerk; Stanley; Humbolt Engineering Works Co., Townson & Mercer.gold, mining, metallurgy, pyrites, cupel, brook, rand, california, america, gold mining

"The United Pyrites Company's Works are situated about three quarters of a mile from Spargo Brothers, and are on the northern side of the Marong road, in Pinch-gut Gully. Two processes are followed at these works, viz., the amalgamating process and the treatment by means of chlorine gas. The latter is called the Newbery-Vautin system, and the mode pursued is that laid down by Mr. Cosmo Newbery and Mr Vautin, whose names have been given to the process. Mr. Edwards manages these works. Three reverbatory furnaces are used to roast the pyrites, which is weighed in the truck before being put into the furnaces. At this weighbridge a sample of each lot is kept, and if the yield is not equal to expectation, the works are carefully gone over to see where the fault occurs. Care is taken at the furnace to regulate the heat, otherwise the pyrites might slag instead of roasting evenly right through. An immense revolving furnace (made of boiler iron) was used at these works. It was found to be suitable for treating blanket sand, but was not a success for roasting coarse pyrites. The process of amalgamating by means of Chilian mills is the same in these works as at the Western Works, but the United Works are on a larger scale, and eleven mills are utilised. It is the chlorine gas process which is most interesting here. The gas is made from sulphuric acid, black oxide of manganese, and common salt, and the gas is introduced into huge vats, where it works its way through a filter of pieces of quartz and then through the bed of roasted pyrites lying above. The action of the gas transforms the gold into chloride of gold. This is easily dissolved in water, and in that form is drawn off into huge delf jars, where the use of sulphate of iron precipitates the gold to the bottom. A small battery—eight head of stamps in two boxes—is in use here to crush small consignments of stone sent for trial. Test crushings come from all the Australasian colonies, and even from India. The jars used are manufactured at Epsom, and some of the salt used is also of home manufacture, from the Salt Lakes on the Northern plains. Mr. Edwards took us over a new building in course of erection, and in which the chlorine gas is to be generated in the midst of the pyrites— a still further advancement in the new process. There is some very good machinery in this new building, and the tailings from the ordinary pyrites works will also be treated by this chlorine gas system, which has been found to work well at Mount Morgan, in Queensland. The purest of gold is obtained by this process, the gold passing in solution into a charcoal filter, from which it emerges in the shape of metallic gold. We saw some nice cakes of retorted gold at the works. One of 26oz. was from some New Zealand pyrites (2½ tons), and assayed over 23 carats. There were also cakes of Avoca gold, of silver, and of the tremulous amalgam." (The Argus, 4 February 1887)Two handwritten letters to the Ballarat School of Mines on Bendigo United Pyrites Company Letterhead.bendigo united pyrites company, pyrites, ballarat school of mines, j.j. deeble, joel deeble, joel james deeble, a.m. dean, fred j. martell, martell, s.h. cowan, letterhead

black and white photo - Deebles Pyrites Works, concrete vats in near and middle ground. Elevated building in back ground, two male adults at left in middle distance. Carboys siphoning, planks,, tall weatherboard building, brick decorated chimney towards right hand side of image. On back in grey lead ' Deeble's Pyrites Works, approx. 1889' James Lerk identified this as being Spargo's Pyrites - the picure appears in 'Bendigo's Gold Story' by Ralph W Birrell and James A Lerk.cottage, miners

black and white photo - enlargement of industrial treatment works showing elevated building in background with two male adults. One by concrete vats at ground level, one on elevated landing. Container on trestles and timber in foreground. Weatherboard building by large concrete vat and acid ? Carboys at centre and left. Decorated brick chimneys ciovered race to upper building. On back in ink ? Foggit Jones? In grey lead Foggit Jones.organization, business, pyrites treatment plant

Gold bearing ore is pulverized by cast iron stampers (steam driven) and material then passes over a large copper plate covered in mercury causing the gold particles to combine with the mercury to form an amalgam which is scraped of and placed in a retort. The retort is heated causing the mercury to evaporate leaving the gold to be refined into ingots. The mercury is cooled as it leaves the retort and is reused. A second tray covered in what is called a blanket traps any fine gold that has passed the first plate. Finally the residue material goes over a vibrating table called a Wilfley Table which captures any iron pyrites which may contain about three percent gold. this is roasted and treated to recover any remaining gold at a special treatment plant.Wooden model of a five heads gold stamper battery. The gold stamper battery is a device for crushing ore. The parts of the battery are cams; dies; guides; kingposts; mortar box; shoes; stamps (or stampers); tappets. gold mining, mining equipment, gold stamper