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The South African Railways Class 3B 4-8-2 of 1912 was a steam locomotive. In 1912, the South African Railways took delivery of ten Class 3B steam locomotives with a 4-8-2 Mountain type wheel arrangement which had been ordered by the Natal Government Railways the year before. [1] [2] [3] [4]
After investigations by SAR engineers with assistance from South Africa's Council for Scientific and Industrial Research (CSIR), the crossheads, slide bars and coupling rods were modified. The crossheads were converted to the multiple-bearing type with single guide bars, a more sophisticated method of filtering out the cylinder and valve ...
The South African Railways Class 19D 4-8-2 of 1937 was a steam locomotive. Between 1937 and 1949, the South African Railways placed 235 Class 19D steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. Between 1951 and 1955, 33 more were built for other operators like the Rhodesia and Angolan railways and the Nkana and Wankie ...
1940, The Industrial Development Corporation of South Africa, which provides funding and technical assistance to industrial ventures. [ 3 ] [ 4 ] 1946, Safmarine , the international shipping business, that was established to provide a shipping route between the US and the Union of South Africa .
In 1935, the South African Railways placed fifty Class 19C steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. It was the first South African locomotive class to use rotary cam poppet valve gear and also the first to be built new with a Watson Standard boiler. [1] [2] [3] [4]
Choke valve, Butterfly valve used to limit air intake in internal combustion engine. (Not to be confused with choke valves used in industrial flow control, above.) Clapper valve: a type of check valve used in the Siamese fire appliance to allow only one hose to be connected instead of two (the clapper valve blocks the other side from leaking out)
The multiple-valve superheater header was of the Melesco type. The boiler was fitted with four Ross-pop safety valves, each 2 + 1 ⁄ 2 inches (64 millimetres) in diameter, and two Hopkinson boiler blowdown cocks on the firebox wrapper, one on each side. Feedwater was delivered to the boiler by two Friedmann vertical type non-lifting injectors ...
Bagnall–Price valve gear on an 18 in gauge Bagnall product at the Kimberley diamond mine museum, South Africa Bagnall–Price valve gear is a type of steam engine valve gear developed at locomotive manufacturer W.G. Bagnall as an alternative to the more common Walschaerts valve gear and also to supersede the Baguley valve gear their designs had previously utilised.