DSB R (I)
| DSB R (I) | |
|---|---|
 DSB R 935 1912
|
|
| Numbering: | R 934–945 (Borsig) R 946–953 (SLM) |
| Number: | 20th |
| Manufacturer: | Borsig , SLM |
| Year of construction (s): | 1912/1913: R 934-945 1917: R 946-953 |
| Retirement: | 1958 ... 1978 |
| Axis formula : | 2'C h2 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 19,165 mm |
| Height: | 4,290 mm |
| Fixed wheelbase: | 4,350 mm |
| Empty mass: | 62 t |
| Service mass: | 70 t |
| Top speed: | 100 km / h |
| Driving wheel diameter: | 1,866 mm |
| Impeller diameter: | 1,054 mm |
| Cylinder diameter: | 570 mm |
| Piston stroke: | 670 mm |
| Boiler overpressure: | 12 atm |
| Grate area: | 2.62 m² |
| Superheater area : | 47.8 m² |
| Evaporation heating surface: | 155.4 m² |
| Tender: | 2'2 ' |
| Service weight of the tender: | 48.4 t after conversion: 50.4 t |
| Water supply: | 21 m³ after conversion: 22 m³ |
| Fuel supply: | 6 t after conversion: 5 t (coal) |
| Locomotive brake: | Suction air brake after conversion: air brake |
| Control: | Heusinger |
The DSB R (I) is one for the Danish State Railways built (DSB) two-cylinder Tender steam locomotive - series for passenger traffic.
This series was procured by the DSB in 1912 and 1913 from Borsig in Berlin and in 1917 from the Swiss Locomotive and Machine Works (SLM) with a total of 20 units and was decommissioned between 1958 and 1978. The 12 Borsig units were given the company numbers R 934 to R 945, the eight locomotives supplied by SLM were given the company numbers R 946 to R 953.
history
development
The R (I) series replaced the P (II) machines with the numbers 901–933, which were built from 1907 to 1910 under the responsibility of machine director Otto Frederik August Busse (1850–1933). The new series was specially designed for high-quality passenger train traffic on the steep main routes in Jutland and Funen .
The acquisition of the series was the responsibility of the new machine director Axel Floor (1880–1931), who, unlike his predecessor, not only worked out the specifications. He made the construction drawings and checked the running characteristics of the first two locomotives on the Berlin Ringbahn and later on Danish routes. A total of twelve vehicles of this version were ordered from Borsig. The first machine cost 86,676 crowns . Another series of eight locomotives could not be built in Germany due to the war. The order therefore went to the Swiss Locomotive and Machine Factory in Winterthur , but could not be delivered until March 1918.
After the First World War , additional vehicles were needed from this series, which proved to be very reliable and strong. The only weak point was an uneven running with high wear on the linkage and superstructure. Senior engineer August Meister von Borsig, who was responsible for the Prussian P 10 , recommended the installation of a third cylinder. The new R (II) series was born from these considerations .
Technical design
The traction wheels had with 1.866 m has a smaller diameter than that of the P (II) , which amounted to 1,984 m. The axle load was 16.4 tons. The bogie had a leaf spring on each side . The boiler had a Schmidt - superheater . For the first time in a Danish locomotive series, the sandpit was mounted on the boiler and an innovation in Denmark was the valve regulator used on the steam dome . The smoke box door was pointed. Another feature was the additional hatch under the smoke chamber door to clear the self-emptying smoke chamber.
On delivery, the front lanterns were powered by oil, which were replaced by gas lamps during World War I. Between 1952 and 1956 all machines received generators for electrical lighting. The suction air brake with blocks was replaced by an air brake between 1939 and 1941 . The eight locomotives built in Switzerland originally had steel fire boxes , which were soon replaced by copper fire boxes .
From 1932 smoke deflectors were installed. In the period that followed, only a few changes were made to the locomotives. In some tenders (R 948: 1941) the water supply was increased in favor of coal.
Calls
The locomotives drove passenger trains on the Randers – Aarhus , Aarhus – Fredericia and as far as the German-Danish border to Vamdrup . From 1920 they were used on Funen and also served the Randers – Aalborg route . In some cases they were used in front of freight trains. From April 23, 1935 to 1939, R 934–936 and R 945 were relocated to the 1st district in Zealand to the depot in Korsør and R 947 to Københavns Godsbanegård (Gb). Otherwise they were based in the 2nd district in the 3rd district with their seat in Aarhus for missions in Jutland and on Fyn.
Accidents
- On November 7, 1935, at Gøderup , south of Roskilde, R 945 drove as a tractor for a freight train to the rear of a freight train.
- On June 13, 1942, the same machine had another accident in a serious collision with a freight train at Lunderskov station . In addition to the train driver, a brakeman and two German soldiers were killed. During a sabotage on March 3, 1945, the locomotive was damaged near Sommersted and on April 19, 1945 in an Allied air raid in Padborg .
Whereabouts
The first vehicles were retired in 1958. The last locomotives were the R 947 and R 953, which were retired in 1972 and the R 946, which were retired in 1978. After a more or less long shutdown time, they were then scrapped.
The tenders of the R 936 and R 938 were converted in 1971 by Centralværkstedet København into Specialvogn 115 ( snow plow , Padborg location, retired 1975) and Specialvogn 116 (snow plow, Fredericia location , retired 1975).
Museum locomotive R 946
On November 2, 1951, the R 946 and the PR 904 collided head- on in Brørup in Vejen municipality . A stoker lost his life. PR 904 was scrapped in Centralværkstedet København, the R 946 could be repaired in Centralværkstedet Aarhus . The drive wheels of PR 904 are now a memorial in Brøndbyøster train station , Greater Copenhagen.
The repairs after the 1951 accident lasted from November 19, 1951 to May 30, 1952. After being parked in Esbjerg from May 30, 1957 to April 11, 1958, the R 946 received an S-inspection on July 28, 1958, during which a boiler investigation was included. The investigation period, during which there was an interim period of storage in Padborg from January 17, 1962 to May 24, 1963, extended to July 28, 1966 and was extended to July 28, 1969; a further extension was not possible. Then the locomotive came into the museum collection.
The mileage after the accident was 522,200 km until 1969. The highest annual output was achieved in the 1953/54 financial year with 87,131 km at a maximum of 10,500 km in August 1953.
The R 946 is part of the Danmarks Jernbane Museum in Odense . According to more recent plans of the museum, half of the approximately 300 historical railway vehicles that are being kept are to be scrapped for cost reasons. This includes the R 946. The background to this decision is the opinion of the Railway Museum that the R 963 three-cylinder locomotive built in Denmark should be preserved and that the R 946 should be used as a spare part dispenser. In addition, only the most important vehicles from each era should remain in the museum's collection. The maintenance of every existing series should be refrained from.
In 2018 the locomotive was dismantled and scrapped.
Web links
- DSB R (I), 934 - 953. In: jernbanen.dk. Retrieved October 29, 2018 (Danish).
Individual evidence
- ↑ DSB R (I), 934 - 953. In: jernbanen.dk. Retrieved October 29, 2018 (Danish).
- ↑ Brørup ulykken - 1951. In: blockposten.dk. November 23, 2014, accessed October 30, 2018 (Danish).
- ↑ Frederik Bøgeskov: Lokomotivhjulene ved Brøndbyøster station. Forstadsmuseet, Hvidovre , accessed October 30, 2018 .
- ↑ Redegørelse fra Jernbanemuseet - bl.a om R 946. In: jernbanen.dk. Retrieved October 30, 2018 (Danish).
- ^ Sune Jørgensen: Historiske jernbanetog shall scraps: - Det er synd. In: TV 2 / Fyn. December 3, 2017, accessed October 30, 2018 (Danish).
- ↑ Steen Ousager: Review af beslutning om udskillelse af R 946. (No longer available online.) Danmarks Jernbanemuseum, January 18, 2018, formerly in the original ; Retrieved October 30, 2018 (Danish). ( Page no longer available , search in web archives )
- ↑ Damplokomotivet S 736 og det Fremtid ved DJM. (PDF) In: jernbanemuseet.dk. Retrieved September 1, 2019 (Danish).
- ↑ Rullende materiel including udskilte foer og efter 2013. (PDF) In: jernbanemuseet.dk. Retrieved December 27, 2019 (Danish).
- ↑ Destruction af R 946. In: jernbanen.dk. Retrieved December 27, 2019 (Danish).