Baden IV c

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IV c
Kraichgaubahn Joehlingen 1879.jpg
Numbering: 1 ... 393
Number: 59
Manufacturer: MBG Karlsruhe
Year of construction (s): 1875-1887
Retirement: 1901-1925
Type : 1B n2
Length over buffers: 14,367 mm
Height: 4,150 mm
Fixed wheelbase: 2,300 mm, from 1879: 2,200 mm
Total wheelbase: 3,900 mm
Empty mass: 31.80 t
Service mass: 35.50 t
Friction mass: 22.50 t
Wheel set mass : 11.30 t
Top speed: 70 km / h
Coupling wheel diameter: 1,680 mm
Impeller diameter front: 1,080 mm
Control type : Stephenson
Number of cylinders: 2
Cylinder diameter: 435 mm
Piston stroke: 610 mm
Boiler overpressure: 9.0 bar
Number of heating pipes: 198
Heating pipe length: 3,300 mm
Grate area: 1.47 m²
Radiant heating surface: 6.03 m²
Tubular heating surface: 86.27 m²
Evaporation heating surface: 92.30 m²
Locomotive brake: Screw brake , later some with counter pressure brake
Train brake: Westinghouse air brake

The vehicles of type IV c of the Grand Ducal Baden State Railroad were passenger train locomotives .

history

As part of the procurement of 1'B locomotives from the beginning of the 1870s, the locomotives of type IV c were also purchased in a total of eight delivery series. The machines were mainly used on the routes with steeper gradients in the Black Forest and the Odenwald. Some of the locomotives therefore received a Riggenbach counter-pressure brake .

Constructive features

The dimensions of the locomotives largely corresponded to type IV b . However, the double frame was dispensed with, which was replaced by a simple sheet metal frame. The locomotive had a very short wheelbase and was therefore able to move easily. Nevertheless, the barrel axis had a side play of 10 mm. The provision was made via inclined double surfaces. The grate area of ​​the fire box was very small, as a result of which the steam generation was not satisfactory. Trials with finned tubes did not produce any improvement. The large steam dome sat on the rear boiler section .

The external wet steam engines had internal slide valves . The drive took place on the first coupling axle . The wheels were suspended with overhead leaf springs, which were connected by a balance lever between the coupling wheels.

The vehicles were equipped with type 2 T 8 or 2 T 6.67 tenders . Some locomotives were equipped with reversing cabs on the tender. So they could also be used on routes without a turntable .

literature

  • Hermann Lohr, Georg Thielmann: Baden locomotive archive. transpress et al., Berlin 1988, ISBN 3-344-00210-4 . (= Railway vehicle archive 2, 7)