HSM Oldenbarneveldt - Simon Stevin

HSM Oldenbarneveldt - Simon Stevin HSM 190 - 193
Type and origin Power type Steam Builder Borsig, Berlin-Tegel Serial number 4244–4247 Build date 1888 Total produced 4
Specifications Configuration: ​  • Whyte 2-4-0  • UIC 1'B Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 1,100 mm (3 ft 7 in) Driver dia. 2,140 mm (7 ft 0 in) Tender wheels 1,100 mm (3 ft 7 in) Length 15,316 mm (50 ft 3.0 in) Height 4,400 mm (14 ft 5 in) Loco weight 43.1 t (47.5 short tons; 42.4 long tons) Tender weight 25.7 t (28.3 short tons; 25.3 long tons) Fuel type Coal Fuel capacity 3.6 t (4.0 short tons; 3.5 long tons) Water cap. 9 m3 (2,000 imp gal) Firebox: ​  • Type Belpaire  • Grate area 2.09 m2 (22.5 sq ft) Boiler pressure 10.3 kg/cm2 (147 psi) Heating surface: ​  • Firebox 9.6 m2 (103 sq ft)  • Tubes 104 m2 (1,120 sq ft) Cylinders Two, outside (compound) High-pressure cylinder 456 mm × 400 mm (18.0 in × 15.7 in) Low-pressure cylinder 456 mm × 800 mm (18.0 in × 31.5 in) Valve gear Walschaerts Train heating Front and rear Loco brake Westinghouse
Performance figures Maximum speed 90 km/h (56 mph) Tractive effort 4,220 kgf (41.4 kN; 9,300 lbf)
Career Operators HSM Power class Till 1899: P3 From 1899: P2 Numbers 190–193 Locale The Netherlands Withdrawn 1908 – 1913 Disposition All scrapped

The HSM 190 - 193 were a class of four 1'B (2-4-0) steam locomotives build by Borsig for the Hollandsche Spoorweg Maatschappij in 1888. The locomotives were named as was typical for the HSM. These were of the same type as locomotives of the series 184-189 (later the NS 1100 serie) with the exception that these locomotives were compounds. Compounding was introduced in an effort to improve efficiency.^[1]

In 1885, Mr. F.A.A. Middelberg of the HSM ordered a study of coal efficiency improvement by the use of compounding. Four locomotives of the series 184-189, two in freight service and two in passenger service, were converted. The trials were successful The four production machines showed a decrease in coal consumption as well. The reduction in coal usage was around 17%. Still, no further compound locomotives were built for the HSM.^[1]

Typically, compounding locomotives use a small-diameter high-pressure cylinder(s) and a large-diameter low-pressure cylinder(s). These locomotives were different: the cylinders had the same bore, but different strokes. The low pressure cylinder's stroke was double the length of the high pressure cylinder's. The cut-off of the cylinders could be independently controlled.^[1]

The HSM employed these locomotives from depots in Zutphen and Almelo. In 1908, three locomotives were taken out of service, whilst No. 191 Paulus Potter remained in service until 1913. All locomotives have been scrapped.^[1]

• H., Waldorp (1986). Onze Nederlandse stoomlocomotieven in woord en beeld (in Dutch) (7th ed.). Alkmaar: De Alk. ISBN 90-6013-947-X.
• van Wijck Jurriaanse, N.J. (1975). De Hollandsche ijzeren spoorwegmaatschappij t/m 1880 (in Dutch). Rotterdam: Wyt. ISBN 90-6007-547-1.
• van der Meer, J. (2009). De Hollandsche IJzeren Spoorweg-Maatschappij (in Dutch). Uquilair. ISBN 978-90-71513-68-8.