The engines of Baden Class I bAlso referred to as Class I b (old) to distinguish them from those given the same classification in 1868. were very early German

steam locomotive A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, Fuel oil, oil or, rarely, Wood fuel, wood) to heat ...

s built for the

Grand Duchy of Baden State Railways Grand Duchy of Baden had its own state-owned railway company, the Grand Duchy of Baden State Railways (''Großherzoglich Badische Staatseisenbahnen or G.Bad.St.E.''), which was founded in 1840. At the time when it was integrated into the Deutsche ...

History

The Class I b locomotives were copies of the first six Baden machines, the Class I a. The ''Badenia'' built by

Emil Kessler Emil Julius Carl Kessler (20 August 1813 – 16 March 1867) was a German businessman and founder of the Maschinenfabrik Esslingen ('Esslingen Engineering Works'). Biography Kessler was born in Baden-Baden, attended school there and later studied c ...

in 1841 was the first locomotive to be built in Baden and the first of nine engines of its class. Kessler built this engine together with his partner Martiensen at his own expense and then placed it experimentally in service. Because it achieved the same level of performance as its English prototypes, it was taken over by the state railway. On the line between

Heidelberg Heidelberg (; ; ) is the List of cities in Baden-Württemberg by population, fifth-largest city in the States of Germany, German state of Baden-Württemberg, and with a population of about 163,000, of which roughly a quarter consists of studen ...

und

Wiesloch Wiesloch (, locally ; South Franconian: ''Wissloch'') is a town in northern Baden-Württemberg, Germany. It is situated 13 kilometres south of Heidelberg. After Weinheim, Sinsheim and Leimen, it is the fourth largest town in the Rhein-Neckar-K ...

one locomotive achieved a speed of with 20 wagons. On a fast run the engines could manage . The majority of the engines were retired by 1863. Only the last one was converted in 1854 into a

tank locomotive A tank locomotive is a steam locomotive which carries its water in one or more on-board water tanks, instead of a more traditional tender (rail), tender. Most tank engines also have Fuel bunker, bunkers (or fuel tanks) to hold fuel; in a #Tender ...

and stayed in service until 1867. It had a water capacity of and coal capacity of .

Technical description

The locomotives had the same piston stroke as their English counterparts and were also equipped with a fork valve gear (''Gabelsteuerung''). The locomotive ''OFFENBURG'' had a Capry valve gear on delivery. The engines had improved

running gear In railway terminology the term running gear refers to those components of a railway vehicle that run passively on the rails, unlike those of the driving gear. Traditionally these are the wheels, axles, axle boxes, springs and vehicle frame of ...

however due to their adjustable leaf springs and centre axle box. The last engine of this class, ''EXPANSION'' No. 15, had a ''Meyer'' double rocker (''Doppelschwing'') valve gear, a larger

cylinder bore In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore b ...

of 381 mm, higher boiler pressure of 5.0 bar and 101 heating tubes. Its larger heating area generated an increase in power. The locomotives were originally built for

broad gauge A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the used by standard-gauge railways. Broad gauge of , more known as Russian gauge, is the dominant track gauge in former Soviet Union countries ...

, but converted in 1854 to

standard gauge A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the ...

. At the same time they were given Capry valve gear, apart from ''CARLSRUHE'' and ''PHOENIX'' which were fitted with

Stephenson valve gear The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds of steam engines. It is named after Robert Stephenson but was invented by his employees. ...

. The engines had a Sharp boiler barrel. The vertical boiler had a rounded top. On the foremost boiler section was the

steam dome The steam dome is a vessel fitted to the top of the boiler of a steam engine. It contains the opening to the main steam pipe and its purpose is to allow this opening to be kept well above the water level in the boiler. This arrangement acts as a ...

with a safety valve and spring balances. The

frame A frame is often a structural system that supports other components of a physical construction and/or steel frame that limits the construction's extent. Frame and FRAME may also refer to: Physical objects In building construction *Framing (con ...

comprised two outside stiffener frame sections (''Futterrahmen'') and four plate frame sections (''Plattenrahmen'') for the steam engine. The ''EXPANSION'' had two plate frame sections. The vehicles were equipped with a Kessler type tender of class 2 T 5.4 or 3 T 5.4.

Footnotes and references

Sources

* Hermann Lohr, Georg Thielmann: ''Lokomotiv-Archiv Baden''. transpress, Berlin 1988, * {{DEFAULTSORT:Baden 001 B old 01 b (old) 2-2-2 locomotives Standard-gauge locomotives of Germany 5 ft 3 in gauge locomotives 1A1 n2 locomotives Passenger locomotives

History

Technical description

See also

Footnotes and references

Sources