The BHStB Vb6 locomotive was a support tender locomotive in Bosnian gauge with five coupled axles and Klose steering gear. The machine was put into operation by the Bosnian-Herzegovinian State Railways (BHStB) in 1893 as Vb6 No. 61. The locomotive was given the designation JDŽ 191-001 by the Yugoslavian State Railways (JDŽ).
For the development of the areas of Bosnia and Herzegovina occupied by Austria from 1878 , narrow-gauge railways with a track width of 760 mm with steep gradients and tight curves were built. The demanding track conditions led to the development and procurement of curve-moving three-coupler machines with Klose steering axles, which were designated as the IIIa4 series .
With the Vb6, a similar but significantly larger five-coupler machine was ordered from Krauss in Linz in order to be able to operate the route over the Komar Pass as a more cost-effective adhesion railway instead of with racks . Although the test drives with 150 tons towing capacity at 45 ‰ were successful according to contemporary reports, racks were installed after the tests at the Komar Pass and the Vb6 remained a one-off.
In 1893 the Krauss plant in Linz delivered the five-coupler locomotive with a single-axle Klose support tender and Klose engine to the Bosnian-Herzegovinian State Railways (BHStB). The machine had inner cylinders, outer frames and external slide boxes for the Stephenson controls . The radial adjustment of the first and last coupled axle was carried out via the single-axle support tender. The wheels of the center axle had no wheel flanges , on the second and fourth axles they were weakened to facilitate driving through radii of up to 70 meters.
In the 1940s, the locomotive, which was designated 191-001 by the Yugoslav State Railways JDŽ, was discarded.
Number Manufactured:
1
Manufacturer:
Krauss
Construction year:
1893
Type:
E1't
Gauge:
760 mm ( Bosnian Gauge )
Length Over Buffer:
12 m
Service Mass:
50t
Friction Mass:
42t
Starting Traction:
54.2kN
Driving Wheel Diameter:
900mm
Impeller Diameter:
650mm
Cylinder Diameter:
390mm
Piston Stroke:
450mm
Boiler Overpressure:
14 atm
Grate Surface:
1.7 m²
Evaporation Heating Surface:
112.7 sqm
Tender:
support tender
Water Supply:
6 m³
Coal supply:
4 Tons
Sketch: The BHStB Vb6 was a support tender locomotive in Bosnian gauge with five coupled axles and Klose steering gear. The machine was put into operation by the Bosnian-Herzegovinian State Railways (BHStB) in 1893 as Vb6 No. 61. The locomotive was given the designation JDŽ 191-001 by the Yugoslavian State Railways (JDŽ).
In the 1930s, the complex Klose mechanism was expanded to make driving through tight bends easier.
Locomotive BHStB Vb6 was a support tender locomotive in Bosnian gauge with five coupled axles and Klose steering mechanism. The machine was put into operation by the Bosnian-Herzegovinian State Railways (BHStB) in 1893 as Vb6 No. 61. The locomotive was given the designation JDŽ 191-001 by the Yugoslavian State Railways (JDŽ). The Klose mechanism was removed at the time the picture was taken.
