DSB R (II)
| DSB R (II) | |
|---|---|
 DSB R 955 - delivery photo Borsig (1921)
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| Numbering: | R 954–958 (Borsig) R 959–963 (Frichs) |
| Number: | 10 |
| Manufacturer: | Borsig , Frichs |
| Year of construction (s): | 1921: R 954-958 1924: R 959-963 |
| Retirement: | 1963 ... 1973 |
| Axis formula : | 2'C h3 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 19,615 mm |
| Empty mass: | 66 t |
| Service mass: | 74 t |
| Top speed: | 100 km / h |
| Driving wheel diameter: | 1866 mm |
| Impeller diameter: | 1054 mm |
| Cylinder diameter: | 470 mm |
| Piston stroke: | 670 mm |
| Boiler overpressure: | 12 atm |
| Grate area: | 2.62 m² |
| Superheater area : | 51.5 m² |
| Evaporation heating surface: | 135.0 m² |
| Tender: | 2'2 ' |
| Service weight of the tender: | 48.4 t |
| Water supply: | 21 m³ |
| Fuel supply: | 6 t (coal) |
| Locomotive brake: | Vapor brake tender: suction air brake after conversion: air brake |
| Control: | Heusinger |
The DSB R (II) is one for the Danish State Railways built (DSB) three-cylinder Tender steam locomotive - series for passenger traffic. The series complemented the two-cylinder series R (I) in the high-quality passenger train service on the steep main routes in Jutland and on Funen .
This series was procured by the DSB in 1921 with five copies from Borsig in Berlin and also with five copies from Frichs in Aarhus in 1924 and retired between 1963 and 1973. The Borsig copies were given the company numbers R 954 to R 958, the locomotives supplied by Frichs were given the company numbers R 959 to R 963.
history
The Prussian steam locomotives were often a model for DSB types. Between 1914 and 1916 the Prussian State Railways procured 124 three-cylinder express train locomotives of the S 10² series . This was the reason for the DSB to test a three-cylinder locomotive similar to the two-cylinder R (I) in use . The background to this were the problems with the R (I) with uneven running and high wear on the linkage and superstructure, as well as the positive experiences there with the S 10² .
The Borsig locomotive factory in Berlin began drawing such a three-cylinder version shortly after the end of the First World War . The five Borsig machines were not delivered until 1921. In 1924 five similar locomotives from Frichs followed, the first large locomotives from the Danish factory in Aarhus.
The first test drives with the R 954 took place in September 1921 on the Berlin Ringbahn . On December 2, 1921, the locomotive was delivered to Aarhus.
Technical design
In order to accommodate the internal drive rod and to extend all three drive rods, the distance between the rear edge of the bogie and the drive wheel set was increased by 45 centimeters. The inner cylinder was slightly higher than the outer one, directly below the smoke chamber . The self-emptying smoke chamber had to be dispensed with.
The slide of the inner cylinder was on the left outside the center of the locomotive. The wheelbase of the bogie has been increased by 20 centimeters. The boiler was similar to the two-cylinder locomotives, the smoke chamber 45 centimeters longer. The Borsig machines had Hochwald gate valves, while the Frichs machines had regular round gate valves . In the case of the Borsig locomotives, the feed water was preheated with Knorr-type surface preheaters . They were removed in the 1930s.
The cabs had beveled front walls, which gave the front windows an improved view. The side windows of the Borsig machines were inclined slightly inwards. In the Frichs locomotives, the side walls were straight and the windows were the same size as in the R (I) series . The front lights were originally powered by gas. Between 1953 and 1955 all machines received electrical lighting.
Originally the coupled wheel set had a vapor brake and the tender a suction air brake and a screw brake as a hand brake . In the years 1939 to 1940 a conversion to compressed air took place, whereby only the tender got a compressed air brake and the steam brake of the locomotive was retained. This was only switched to compressed air in the 1950s. As with the R (I) series , smoke deflectors and rail clearers were installed from 1932 onwards .
The R 961 received 1948, a smoke chamber front with a large steel door, sash fastener instead of handwheels. These smoke chamber doors were later given to several other locomotives. R 961 ran for a few years with a Lemaître blowpipe and large chimney.
Calls
The locomotives ran like the two-cylinder series R (I) passenger trains on the Randers – Aarhus , Aarhus – Fredericia and up to the German-Danish border to Padborg . They also served the Randers – Aalborg route . In some cases they were used in front of freight trains.
After delivery, all locomotives were placed in the 2nd district in Aarhus for use in Jutland and Funen. At the beginning of 1938 the Borsig locomotives were relocated to the 1st district in Zealand to the depot in Korsør and between 1941 and 1943 to Københavns Godsbanegård (Gb). From 1943 they came back to the 2nd district and were replaced by the loan of R 960 and R 961 to the two depots in the 1st district, where they remained until 1944.
Whereabouts
The first vehicles were retired in 1963. The last locomotives were the R 957 and R 958, the 1968 and the R 959, which were retired in 1973. After a more or less long period of storage, they were scrapped.
The tenders of the R 955 and R 962 were moved from Centralværkstedet København to Specialvogn 123 ( snow plow , Struer site , retired 1975) and Specialvogn 126 (snow plow, Esbjerg site , retired 1981) in 1971, and the R 963 tender was moved to Specialvogn as early as 1965 108 (snow plow, Roskilde location , retired after a derailment on February 4, 1979 near Fakse on the Østsjællandske Jernbaneselskab [ØSJS] route ).
Museum locomotives
- R 959: stored in Lunderskov in 1968 , retired in 1973 and loaned to Albani Bryggeriet in Odense as a stationary steam boiler. In 1975 handed over to the Jernbanemuseet in Odense . In 1979 the locomotive came to the Dansk Jernbane-Klub (DJK) and was returned to the Jernbanemuseet in 1984. After a period of storage from 1979 to 1985 in Odense, it was scrapped at Henriksen in Århus in 1985.
- R 963: The locomotive had a purchase price of 249,748 kroner in 1924 . During the storage period from 1964 to 1967 in Randers and Langå , the original tender was converted into a snow plow. She received a tender from another decommissioned locomotive. In 1972 it was transferred to the Jernbanemuseet.
Web links
- DSB R (II), 954 - 963. In: jernbanen.dk. Retrieved November 1, 2018 (Danish).
Individual evidence
- ↑ a b c DSB R (II), 954 - 963. In: jernbanen.dk. Retrieved November 1, 2018 (Danish).