Hohenzollern Locomotive Works

Hohenzollern Locomotive Works

The Hohenzollern Locomotive Works (Aktiengesellschaft für Lokomotivbau Hohenzollern) was a German locomotive-building company which operated from 1872 to 1929. As well as conventional steam locomotives the company also built fireless steam locomotives and diesel locomotives.

Fireless steam locomotives

Hohenzollern built a large number of fireless locomotives, including some articulated fireless locomotives with a cab at each end. Hohenzollern's fireless locomotives were unusual in having inside cylinders. The German for fireless steam locomotive is "Dampfspeicherlokomotive", meaning steam storage locomotive.

Hohenzollern articulated fireless locomotives

Each locomotive had two 2-axle bogies. On no. 1685 only one axle was powered but, on the others, two axles were powered. For an explanation of wheel arrangements see: AAR wheel arrangement. Nos. 1685 and 2107 (which were designed for use in mines) had air-cooled condensers to condense the exhaust steam.

Diesel locomotives

Hohenzollern supplied a 1,200 horsepower diesel-mechanical locomotive to the Russian State Railways in the 1920s. This had a constant-mesh gearbox with an individual electromagnetic clutch to engage each gear.

Around the same time, Russian State Railways also took delivery of a 1,200 hp diesel-electric locomotive, designed in Russia by Professor Lomonosov. There is some dispute as to whether this was also built by Hohenzollern or by Esslingen Machine Works. Ref: [http://home.att.net/~berliner-Ultrasonics/boxcabs5.html#odderbox]

ources

* German Wikipedia article
* "The Locomotive Engineers' Pocket Book 1934", (UK), publisher unknown, page 286
* "The Industrial Railway Record", published by the Industrial Railway Society, ISSN 0537-5347, no. 166 (2001), page 10 and no. 170 (2002), pp 216-218

External links

* [http://de.wikipedia.org/wiki/Aktiengesellschaft_f%C3%BCr_Lokomotivbau_Hohenzollern German Wikipedia article]
* [http://www.steamlocomotive.info/locobrowse.cfm?bn=Hohenzollern List of preserved Hohenzollern locomotives]
* [http://www.irsociety.co.uk/Archives/25/Overseas_9_Holland.htm Photo of Hohenzollern fireless locomotive at Keilehaven Gas Works, Rotterdam]


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