Palatine T 5
| Palatine T 5 DR series 94.0 |
|
|---|---|
| Numbering: | 306-309 DR 94 001-004 |
| Number: | 4th |
| Manufacturer: | Krauss |
| Year of construction (s): | 1907 |
| Retirement: | 1926 |
| Type : | E n2t |
| Genre : | Gt 55.14 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 12,020 mm |
| Empty mass: | 56.8 t |
| Service mass: | 72.0 t |
| Friction mass: | 72.0 t |
| Wheel set mass : | 14.4 t |
| Top speed: | 40 km / h |
| Driving wheel diameter: | 1,180 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 560 mm |
| Piston stroke: | 560 mm |
| Boiler overpressure: | 13 bar |
| Number of heating pipes: | 253 |
| Heating pipe length: | 4350 mm |
| Grate area: | 2.73 m² |
| Radiant heating surface: | 11.5 m² |
| Tubular heating surface: | 157.5 m² |
| Evaporation heating surface: | 169.00 m² |
| Brake: | Schleiffer pneumatic brake, 2nd and 3rd coupling axle braked on both sides |
The type T 5 freight locomotives of the Palatinate Railways were tank locomotives without wheel sets and with five coupled wheel sets .
history
The machines were specially procured for use in front of heavy coal trains on the steep ramp between Pirmasens and Biebermühle in 1907 from Krauss & Comp ., Munich-Allach. It was the last type of tank locomotive that was developed independently by the Palatinate Railways. They reached a speed of 40 km / h on the plain with a train mass of 1,510 t. On a gradient of two per thousand, they could still transport 200 t at 30 km / h. This meant that they were less powerful than the contemporary five-coupler systems without wheelsets on the railways of Prussia , Saxony or Württemberg .
The locomotives were classified by the Deutsche Reichsbahn as class 94.0 in their numbering plan in 1925 . As their performance data were worse than those of the other five-coupled regional railroad locomotives, they were retired in 1926.
The former No. 307 (94 002) was sold to the Eschweiler Bergwerks-Verein (EBV), which used it at the Carl Alexander hard coal mine in Baesweiler until 1974; it had the name Carl Alexander and the company number 3 at the EBV . This locomotive was preserved, it is exhibited today in the museum of the German Society for Railway History eV in Neustadt an der Weinstrasse .
Constructive features
The locomotives had a riveted sheet metal frame; the water tank was placed between the boiler and the frame.
The kettle had two long kettle sections and a wide standing kettle with a copper firebox above the frame. The boiler was fed via two steam jet pumps.
The second and fourth set of coupling wheels were firmly mounted in the frame, the other wheel sets were designed to be laterally displaceable according to the Gölsdorf principle .
The two-cylinder wet steam engine with simple steam expansion drove the fourth coupled gear set. The single-rail crosshead guide was noticeably far back in the area of the second coupled wheel set. The steam engine had piston valves with an external flow and an external Heusinger control with hanging iron. The arrangement of the pusher rod far below the center and below the pusher rod was also unusual.
According to the Palatinate specifications, a compressed air brake of the Schleiffer type was used as the brake, which acted on the second and third coupling axles on both sides. There was also an Extersche handbrake.
literature
- Lothar Spielhoff: Locomotives of the Palatinate Railways 1st edition, Verlag Jürgen Pepke, Germering 2011, ISBN 978-3-940798-15-2 , p. 147 ff.
- Manfred Weisbrod, Hans Müller, Wolfgang Petznick: German Locomotive Archive: Steam Locomotives 3 (Series 61 - 98). 4th edition, transpress, Berlin 1994, ISBN 3-344-70841-4 , pp. 208 ff.