PStB 3 and 4

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PStB 3 and 4
historical picture PStB 4
historical picture PStB 4
Numbering: PStB 3 and 4
Number: 2
Manufacturer: Hohenzollern
Year of construction (s): 3: 1896
4: 1902
Retirement: until 1928
Type : B n2tk
Gauge : 1000 mm ( meter gauge )
Total wheelbase: 1,460 mm
Service mass: 3:18 t
4:20 t
Friction mass: 3:18 t
4:20 t
Wheel set mass : 3: 9 t
4: 10 t
Top speed: 25 km / h
Indexed performance : 3: 67.8 kW (92 PS)
4: 73.6 kW (100 PS)
Starting tractive effort: 3: 25 kN
4: 27 kN
Driving wheel diameter: 3: 800 mm
4: 810 mm
Control type : Joy control
Cylinder diameter: 280 mm
Piston stroke: 350 mm
Boiler overpressure: 3: 14 bar
4: 15 bar
Grate area: 0.60 m²
Evaporation heating surface: 3: 30 m²
4: 27.3 m²
Water supply: 3: 1.8 m³
4: 2 m³
Fuel supply: 0.8 m³
Brake: Handbrake
Train brake: Körting suction air brake
Train heating: steam

The locomotives PStB 3 and 4 (both first occupation) were the first tram locomotives of the Plettenberg tram . They come from the Aktiengesellschaft für Lokomotivbau Hohenzollern , which produced 17 similar locomotives from 1898 to 1910. Both locomotives were in service until 1928. Since the increased traffic required the procurement of more powerful locomotives, they were retired and scrapped.

History and commitment

The locomotives were supposed to complement the first two tank locomotives PStB 1 and 2 . They differed slightly from one another in size and appearance and were primarily designed for freight traffic, which was initially carried out as trolley traffic and later as trolley traffic. They got their names from the named rivers along the route, the 3 "Else" and the 4 "Oester". The locomotives were able to transport two bolstered freight cars on the steeply steep Oestertal Railway .

Locomotive 3 Else suffered an accident in 1903 when an apparently unsecured, bolstered freight car hit the locomotive, overturned it and pushed it against the wall of a house. The freight car and the trestles fell into the Oester. The locomotive was refurbished and was in use until 1928.

Locomotive 4 Oester had a slightly higher frictional weight and ran smoothly in heavy train service. In 1927 it was redrawn to number 1 in the second occupation, as new locomotives were delivered that were to receive their number. In 1928 it was retired and scrapped after the boiler deadline.

technology

While the appearance of the locomotive 3 was very similar to the Hohenlimburger Kleinbahn 1-3 , the 4 had a sloping coal box at the end of the locomotive. It was slightly stronger and heavier than its sister locomotive. Both locomotives were referred to by the manufacturer as the Plettenberg Tram or the more advanced Oester Tram . On the front sides there were three oval windows of equal size that could be rotated around the vertical axis to open.

The steam engine was of the wet steam design and the boiler was clad with asbestos. The two steam cylinders were designed as internal engines. They were arranged slightly inclined under the smoke chamber and acted on the double-cranked rear drive axle. The regulator and control were located next to the dome in the middle of the boiler. At least the 4 Oester locomotive had these controls on both sides of the boiler so that the locomotive driver could operate the locomotive on both sides depending on the visibility. Locomotive 4 , which had an increased steam pressure of 15 bar, was equipped with a Körting type suction air brake from the start , while this was retrofitted to locomotive 3 in 1897. The locomotives were later rebuilt, which concerned the pulling and bumpers and the spark arrester . They did not have side buffers. The large side cutout on the operating side of the locomotive had two sheets of metal with windows that could be moved on continuous strips to give the staff some protection, but these plates could also be removed.

literature

  • Wolf Dietrich Groote: The Plettenberger Kleinbahn . Verlag Kenning, Nordhorn 2002, ISBN 3-933613-56-6 , p. 57-59 .

Web links

Individual evidence

  1. Erhard Born, Wolf-Dietrich Groote: Hohenlimburger Kleinbahn . Kenning Verlag, Nordhorn 2011, ISBN 978-3-933613-26-4 , pp. 54-56 .
  2. a b c d Wolf Dietrich Groote: The Plettenberger Kleinbahn . Verlag Kenning, Nordhorn 2002, ISBN 3-933613-56-6 , p. 72-73 .
  3. ^ Photo about the accident in 1903 on the website www.alt-plettenberg.de