Saxon VII (Schwartzkopff type)

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Schw VII
Factory photo of no. 188 "HAUS WETTIN" (1869)
Factory photo of no. 188 "HAUS WETTIN" (1869)
Numbering: 182-191 (1869)
713-722 (1892)
7216 (1900)
Number: 10
Manufacturer: Schwartzkopff , Berlin
Year of construction (s): 1869
Type : B n2
Gauge : 1435 mm ( standard gauge )
Total wheelbase: 2590 mm
Empty mass: 24.1 t
Service mass: 27.8 t
Friction mass: 27.8 t
Wheel set mass : 13.9 t
Driving wheel diameter: 1525 mm
Control type : Allan
Cylinder diameter: 420 mm
Piston stroke: 610 mm
Cup length: 3730 mm
Boiler overpressure: 8.4 bar
Number of heating pipes: 184
Heating pipe length: 3846 mm
Grate area: 1.2 m²
Radiant heating surface: 6.6 m²
Tubular heating surface: 87.0 m²
Evaporation heating surface: 93.6 m²
Water supply: 5.66 m³
Fuel supply: 2 t (coal)

As Genus VII designated Royal Saxon State Railways four-coupled Schlepptender locomotives for mixed services. The locomotives described here came from the Berlin company Schwartzkopff ; they had been ordered by the Western State Railways . With the Royal Saxon State Railways founded in 1869, they were given the generic designation Schw VII .


The order for the locomotives comes at a time when new locomotives were needed, especially for the planned commissioning of the Freiberg – Flöha line . With this route, a direct connection was created for the first time between the networks of the two state railroad administrations in Saxony, the Western and Eastern State Railways . This was accompanied by the unification of both administrations to form the General Directorate of the Royal Saxon State Railways on July 1, 1869.

Schwarzkopff delivered the ten locomotives with the serial numbers 86 to 95 between May and August 1869 to the Western State Railways and the Kgl. Saxon. State railways. The locomotives were named after famous personalities from Saxon and Prussian history and after locations in the intended area of ​​operation. The names HAUS WETTIN , OTTO DER REICHE , FRIEDRICH DER GROSSE , ALBERT DER BEHERZTE , LUTHER , MELANCHTHON , GE LESSING , BARBARA UTHMANN , FRANKENSTEIN and FALKENAU were given .

The Kgl. Saxon. From 1871, state railways classified the locomotives in the class Schw VII , the abbreviation Schw standing for the manufacturer Schwartzkopff. From 1896 onwards, all double-coupled tender locomotives were grouped together in the uniform designation VII .

From 1893 the locomotives were gradually taken out of service. The last operational locomotive was the former No. 185 LUTHER , which was in operation until 1906.

technical features

The locomotives had an internal sheet metal frame and a Belpaire standing boiler . The straight ceiling of the fire box enabled a large steam room that was constant even with different water levels. The steam extraction to the cylinders took place in a regulator attachment, which also carried the two Ramsbottom safety valves . The boiler was fed by two Schau-type injectors .

The sandpit was arranged on the long boiler. The first axis was sent. The chimney was of the Prüßmann type.

The steam engine was designed as a two-cylinder engine with external all-control. The second coupled axle was driven.

The locomotives had a four-point support with individual overhead springs. From 1879 onwards, it was converted to a three-point support by means of a cross compensation of the springs of the drive wheels.

When delivered, the locomotives did not have a brake, but a device for generating counter steam . Individual locomotives received from 1892 Westinghouse - Compressed air brake device for the train.

See also


  • Dietrich Kutschik, Fritz Näbrich, Günther Meyer, Reiner Preuß: German Locomotive Archive: Locomotives of Saxon Railways 1 . 2nd revised and expanded edition. transpress, Berlin 1995, ISBN 3-344-71009-5 .
  • Erich Preuß , Reiner Preuß : Saxon State Railways , transpress Verlagsgesellschaft mbH, Berlin, 1991, ISBN 3-344-70700-0

Individual evidence

  1. Delivery list on
  2. The delivery lists at and Kutschik, Näbrich differ from one another.
  3. KUTSCHIK, NÄBRICH 1995 p. 136