Kitson & Company started to build tram engines in 1878. It used a roof-mounted, air-cooled, condenser of thin copper tubes in which the exhaust steam was condensed, similar to the radiator on a modern road vehicle. The air-cooled system eventually became standard for steam tram engines.
William Wilkinson
William Wilkinson of Holme House Foundry, Wigan patented the exhaust steam reheating system about 1881. While it may seem unusual to re-heat steam after, rather than before, use because it would involve a waste of fuel, the purpose of superheating the exhaust was to ensure 'no water can be emitted from the chimney to the annoyance of passengers'. Furthermore, the expansion into a hot chamber in the boiler minimised the noise of the exhaust.[1] Despite the inefficiency inherent in this, the Wilkinson system was popular for a time, and engines of the Wilkinson type continued to be built up to about 1886. Similar reheaters were also used for road steam wagons, such as the Sentinel.
Others
Other British builders of steam tram engines included:
From the 1880s onward, every steam locomotive builder in Belgium supplied the National Company of Light Railways (SNCV in French) with tram engines, with nearly 1,000 examples being built. Ateliers de Tubize, FUF Haine-Saint-Pierre and Société de Saint-Léonard also supplied several tram engines to foreign companies such as Spain, the Netherlands, France, or Italy.
The last steam trams were delivered in the early 1920s.
Corpet-Louvet, Décauville, Pinguely, and Blanc-Misseron built engines for French and foreign tramways, the latter was created by Ateliers de Tubize in order to avoid taxation of imported locomotives. These companies also built industrial engines and some shunters; large steam locomotives were mostly built by other companies.
A small number of steam tram engines were manufactured in Sydney, Australia to Baldwin designs by Henry Vale, T. Wearne and the Randwick Tramway Workshops.
In cities, steam tram engines faded out around 1900, being replaced by electric tramsorbuses. Rural steam trams held longer until replaced by electric, diesel trams units or buses. In France, The Netherlands and Belgium, the last steam-powered tram lines closed in the 1960s.
SNCV type 7 0-6-0 (Ateliers de Tubize, 1888), at the ASVi museum (Belgium). This engine, kept in working order, is the eldest preserved SNCV engine.[5]
SNCV type 7 (Société Franco-Belge, 1912), at Blegny-Mine.
SNCV type 18 0-6-0 (Haine-Saint-Pierre, 1920) at the Schepdaal museum (working).
Three SNCV type 18 (one built by J.J. Gilain in 1915, and two by Grand-Hornu in 1920), at the Tramway touristique de l'Aisne (Belgium).[6]
3Blanc-Misseron 0-6-0 steam tram locomotives (Tramways De le Sarthe (TS)), one built in 1882 and the other in 1898, with one currently in working order at the MTVS.
