Saxon IIIb V
Westinghouse air brakes (refit)
Performance figures | |
---|---|
Maximum speed | 75 km/h (47 mph) |
Career | |
---|---|
Numbers | KSäStE: 501–518 DR: 34 7901 – 34 7902 |
Retired | 1923 |
The Saxon Class IIIb was a twin-coupled tender locomotive built for passenger services with the Royal Saxon State Railways.
History
Following the success with the compound locomotives of Class VIb V, corresponding locomotives were procured for hauling passenger trains. Based on the design of the Saxon IIIb the Saxon Engineering Works (Sächsische Maschinenfabrik) built a compound engine. In the years 1889 and 1892 a total of 18 units of the IIIb V were built for passenger train duties. Because the engines apparently did not prove themselves, no further orders were placed.
In 1920, the Deutsche Reichsbahn took over some of the locomotives, but only two remaining engines were included in the new numbering scheme in 1924: numbers 34 7901 and 34 7902.
Design features
The locomotives had a boiler made from three shell rings with a semi-circular cover which, in the area of the firebox, was tucked in it between the frame plates. The boiler was fed by two non-sucking injectors.
The steam engine was designed as a twin-cylinder compound engine with interior Allan valve gear. The high-pressure cylinder was placed on the right, the larger, low-pressure cylinder on the left. They drove the second coupled axle.
The driving axles were fixed in the frame, the leading carrying wheels were designed as a Novotny-Klien axle.
The locomotives left the factory equipped with Schleifer compressed air brakes; these only braked the engine, however. Later, all the locomotives were fitted with Westinghouse air brakes. The locomotiven were coupled to tenders of Saxon Class sä 3 T 9.
References
- Näbrich, Fritz; Meyer, Günter; Preuß, Reiner (1983). Lokomotivarchiv Sachsen 1 (in German). Berlin: transpress VEB Verlag für Verkehrswesen.[page needed]
- Näbrich, Fritz; Preuß, Reiner; Meyer, Günter (1984). Lokomotiven sächsischer Eisenbahnen, Schnellzug- und Personenzuglokomotiven (EFA 2.1) (in German). Düsseldorf: Alba. pp. 144–148, 210. ISBN 3-87094-096-4.
- Preuß, Erich; Preuß, Reiner (1991). Sächsische Staatseisenbahnen (in German). Berlin: transpress Verlagsgesellschaft. ISBN 3-344-70700-0.[page needed]
- Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 196–198. ISBN 3-87094-081-6.
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