Box 0230

Scope and Contents The tailings from the washing machines is conveyed by large mud skips to the top of a high trestle, where it is dumped, gradually forming huge piles, which are as much a feature of the scenery around Kimberly as are the Culm piles in the Anthracite coal region of Pennsylvania. (Presumably this reference comes from A. F.Brigham who worked in the Pennsylvania anthracite coal fields following his graduation from Lehigh (1894) in mining engineering. In 1901 he became a colleague of Cecil...

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All the power for the mines is generated at one central power station which supplies current for pumping, hauling,lights, etc. The mines underground are lighted throughout by electricity. This station also supplies light to the towns of Kimberley and Beaconsfield and power for two surface tram lines.

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Generators. 3 – 1.500. K.W. 5.000. Volt. 3 Phase 50 cyl. 6.000. alternations 1.500. R.P.M. Westinghouse alternators with rotating fields. Four pole.Turbines. 3 – Parson-Westinghouse multiple expansion parallel flow type. Direct coupled to Westinghouse alternators. Exciters. 2 – 50 H.P. 220 volt. A.C.motors direct coupled to 2 – 37 ½ K.W. 110 volt. D.C. generators. Cont. over.

Scope and Contents Switchboard 3 – High tension machine panels. 12 H.T. feeded panels 1 “ Station panel 6 Low tension local distributing panels, all supplied by the General Electric Co. Auxiliary Set. 1 – 125 H.P. Bellis-Morcom engine 1 – 75 K.V. Westinghouse alternator used for starting up station. Boilers. 12 Babcock & Wilcox, each 3.580 sq. ft. of heating surface set in three batteries, pressure – 150 lbs. to sq. in. with chain grate stokers. Induced draughter being...

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The head office is in Stockdale Street Kimberley.

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The above shows a photograph of a diamond (weight 89 ¾ carats) embedded in the Blue ground, exactly as it occurs in the mine.

Scope and Contents From the Collection: The photographs of five mines: DeBeers, Dutoitspan, Kimberley, Wesselton and Bultfontein Mine with captions as well as mining equipment, ore processing and diamond matrix ore are pasted to the board pages. There is no alphabetic or chronological sequence displayed and no absolute certainty as to the photographer considering that some of the photographs are described as being taken from a time before Mr. Fuller was in South Africa. There is also a list of the mine managers for the De Beers...

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(Printed in white “Aerial Gear – Bultfontein Mine”) The above view shows one of the Aerial Gears used in the intermediate stage of Diamond Mining. The construction is clearly shown in the photograph. (Photo shows group of workers riding in a bucket suspended on cables.)

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(Printed in white “Main Shaft. Kimberley.”) View showing Head-gear over Main Shaft and Engine house. The above frame is of the same type & construction as that at Wesselton Mine. (During the Siege of Kimberley the city residents took refuge in this mine from artillery fire)

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View showing Main Rock Shaft, Engine rooms & Head-gear. This photograph was taken during the Anglo-Boer war (1899-1902) and shows the conning tower erected on top of the head-gear, from which the movements of the Boers were watched, at the time of the siege of Kimberley (October 1899-February 1900).