NZASM 13 Tonner 0-4-0T
31+1⁄2 in (800 mm)
15+3⁄4 in (400 mm) stroke
Performance figures | |
---|---|
Tractive effort | 5,150 lbf (22.9 kN) @ 75% |
Career | |
---|---|
Operators | NZASM |
Class | NZASM 13 Tonner |
Number in class | 1 |
Official name | 13 Tonner |
Delivered | 1889 |
First run | 1889 |
The NZASM 13 Tonner 0-4-0T of 1889 was a South African steam locomotive from the pre-Union era in the Transvaal.
In 1889, the Nederlandsche-Zuid-Afrikaansche Spoorweg-Maatschappij acquired a single locomotive, very similar to its 14 Tonner locomotives and built by the same manufacturer, but with a smaller water and coal capacity. Since the railway classified its locomotives according to their weight, this well-and-side-tank locomotive was known as the 13 Tonner.[1]
The Randtram line
As a result of the rapid development of the goldfields on the Witwatersrand in the 1880s and the demand for coal by the growing industry, the Volksraad of the Zuid-Afrikaansche Republiek (ZAR), also known as the Transvaal Republic, granted a concession to the Nederlandsche-Zuid-Afrikaansche Spoorwegmaatschappij (Netherlands-South African Railway Company, NZASM) on 20 July 1888 to construct a 16-mile long (26-kilometre) railway from Johannesburg to Boksburg. The railway, which was opened on 17 March 1890, became known as the Randtram line.[1][2][3]
Manufacturer
In 1889, six small 0-4-0T locomotives were delivered to the NZASM by the German engineering firm and locomotive builder Maschinenfabrik Esslingen, owned by Emil Kessler. Five of these were the NZASM 14 Tonners. The sixth, the sole 13 Tonner, was also a well-and-side-tank locomotive with a 0-4-0T wheel arrangement and was similar to, but lighter than the 14 Tonner.[1]
Characteristics
The engine's cylinders were arranged outside the plate frames. The "D" type slide valves, mounted above the cylinders, were arranged at an incline and were actuated by Allan straight link motion. In this type of valve gear, the valve rod and the expansion link are respectively connected to opposing arms on the reversing shaft, so that partial rotation of the shaft moves the link and the die block in opposite directions.[1]
Apart from the side-tanks, the locomotive also had a well-tank between the frames under the boiler barrel. The dome was on the front section of the boiler and the regulator valve was arranged in the smokebox.[1]
Comparison
Compared to the 14 Tonner, the 13 Tonner differed in at least three respects, judging from photographs. The 13 Tonner had a much narrower coal bunker and a shorter chimney. The side-tanks were also much smaller, reaching only as far forward as aft of the boiler-mounted sandbox dome.[1][3]
On the 14 Tonner, the side-tanks on each side were in two parts and reached as far forward as aft of the steam dome. In addition, the 14 Tonner had two small panels in the side of the rear tank on its right side. The 13 Tonner had no such panels.[1][3]
References
- ^ a b c d e f g Espitalier, T.J.; Day, W.A.J. (1944). The Locomotive in South Africa - A Brief History of Railway Development. Chapter IV - The N.Z.A.S.M.. South African Railways and Harbours Magazine, October 1944. pp. 761-764.
- ^ Holland, D.F. (1971). Steam Locomotives of the South African Railways. Vol. 1: 1859–1910 (1st ed.). Newton Abbott, England: David & Charles. pp. 109–110. ISBN 978-0-7153-5382-0.
- ^ a b c The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 19.
- v
- t
- e
- CSAR 0-6-0ST 1896
- CSAR 4-6-0T 1887
- CSAR Class 6-L1
- CSAR Class 6-L2
- CSAR Class 6-L3
- CSAR Class 7
- CSAR Class 8-L1
- CSAR Class 8-L2
- CSAR Class 8-L3
- CSAR Class 9
- CSAR Class 10 1904
- CSAR Class 10 1910
- CSAR Class 10-2 Saturated
- CSAR Class 10-2 Superheated
- CSAR Class 10-C
- CSAR Class 11
- CSAR Class B 0-6-4T
- CSAR Class C 2-8-4T
- CSAR Class D
- CSAR Class E 4-8-0TT
- CSAR Class E 4-8-2T
- CSAR Class E 4-10-2T
- CSAR Class F
- CSAR Class M
- CSAR Mallet Saturated
- CSAR Mallet Stoker
- CSAR Mallet Superheated
- CSAR Rack 4-6-4RT
- CSAR Railmotor
- IMR 0-6-0ST 1896
- IMR 4-6-0T 1887
- IMR 46 Tonner 0-6-4T
- IMR 55 Tonner 2-6-4T
- IMR 7th Class 4-8-0
- IMR 8th Class 4-8-0
- IMR Reid Tenwheeler 4-10-2T
- IMR Western Australian 2-8-4T
- NZASM 10 Tonner
- NZASM 13 Tonner
- NZASM 14 Tonner
- NZASM 18 Tonner
- NZASM 19 Tonner
- NZASM 32 Tonner
- NZASM 40 Tonner
- NZASM 46 Tonner
- OVGS 1st Class 4-4-0TT
- OVGS 2nd Class 2-6-0
- OVGS 2nd Class 2-6-0ST
- OVGS 3rd Class 4-4-0
- OVGS 4th Class G 4-6-0
- OVGS 5th Class K 4-6-0 1890
- OVGS 5th Class K 4-6-0 1891
- OVGS 6th Class L 4-6-0
- OVGS 6th Class L2 4-6-0
- OVGS 6th Class L3 4-6-0
- PPR 0-4-0ST Natal
- PPR 26 Tonner
- PPR 35 Tonner Portuguese
- PPR 55 Tonner
- CSAR Pankop