en>Omnipaedista: edited formatting

2013-05-05T03:50:16Z

edited formatting

← Older revision		Revision as of 05:50, 5 May 2013
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	~~I’m Ladonna from Green Point doing my final~~ year engineering in ~~Industrial~~ and ~~Labor Relations~~. ~~I did my schooling~~, ~~secured 86%~~ and ~~hope~~ to ~~find someone~~ with ~~same interests~~ in ~~Gardening~~.<br>~~<br>Also visit my weblog~~ :: [http://s.do-~~dance~~.com/~~romancedramamovie540524 Romantic Movie~~]		{{Infobox German Railway Vehicle
			\|Farbe1=698B69
			\|Farbe2
			\|Baureihe=Saxon XV HTV<br />DRG Class 79
			\|Abbildung=
			\|Name=
			\|Nummerierung=1351 and 1352<br />79 001 and 79 002

			\|Hersteller= [[Sächsische Maschinenfabrik]], [[Chemnitz]]
			\|Baujahre=1916
			\|Ausmusterung=
			\|Anzahl=2
			\|Wheel arrangement=[[0-6-6-0]]
			\|Achsformel= C C h4v
			\|Gattung=Pt 66.15
			\|Spurweite=1,435 mm
			\|Anfahrzugkraft=
			\|Beschleunigung=
			\|Leistungskennziffer=
			\|Höchstgeschwindigkeit= 70 km/h
			\|LängeÜberPuffer=14,660 mm
			\|Länge=
			\|Höhe=
			\|Breite=
			\|Drehzapfenabstand=
			\|AchsabstandDerFahrgestelle=
			\|FesterRadstand=7,500 mm
			\|Gesamtradstand=11,100 mm
			\|RadstandMitTender=
			\|Leermasse=74.6 t
			\|Dienstmasse =92.2 t
			\|DienstmasseMitTender =
			\|Reibungsmasse=92.2 t
			\|Radsatzfahrmasse=15.37 t
			\|Antrieb=
			\|Geschwindigkeitsmesser=
			\|Steuerung=
			\|Übersetzungsstufen=
			\|Kupplungstyp=
			\|Bremsen=
			\|Zusatzbremse=Counterweight brake
			\|Feststellbremse=
			\|Zugheizung=
			\|Lokbremse=Knorr [[compressed-air brake]]
			\|Zugbremse=
			\|Zugsicherung=
			\|Halbmesser=170 m
			\|Besonderheiten=
			\|Zylinderdurchmesser =
			\|NDZylinderdurchmesser=680 mm
			\|HDZylinderdurchmesser=440 mm
			\|Zylinderanzahl=4
			\|Kolbenhub=630 mm
			\|Kuppelraddurchmesser=1,400 mm
			\|Kessel=
			\|Kessellänge=
			\|Kesseldruck= 15 bar
			\|AnzahlHeizrohre=124
			\|Heizrohrlänge=4,500 mm
			\|Rostfläche=2.5 m²
			\|Strahlungsheizfläche=11.29 m²
			\|Rohrheizfläche=78.90 m²
			\|Überhitzerfläche=40.9 m²
			\|Verdampfungsheizfläche=127.20 m²
			\|IndizierteLeistung=
			\|Steuerungsart=[[Walschaerts]] (''Heusinger'')
			\|Zylinderdruck=
			\|Wasser=8,5 m³
			\|Brennstoff=2.2 t coal

			}}
			The '''Saxon Class XV <math>\textstyle \mathfrak{H}</math>T<math>\textstyle \mathfrak{V}</math>''' was a class of goods train steam locomotive operated by the [[Royal Saxon State Railways]], which had been conceived for hauling trains and acting as [[pusher locomotive\|banking engines]] for routes in the [[Erzgebirge\|Ore Mountains]]. In 1925 the [[Deutsche Reichsbahn]] grouped them into their '''DRG Class 79.0'''.

			== History ==

			The two locomotives were built in 1916 at the [[Sächsische Maschinenfabrik\|Sächsischen Maschinenfabrik]], formerly Hartmann.

			The undercarriage of the locomotives was unusual. Instead of an alternative proposal for a twelve-coupled locomotive with sideways-sliding [[Gölsdorf axle]]s, as was realised a year later in the shape of the [[Württemberg K]], the Saxon Railways decided on a proposal by their head of the engineering department, Lindner, for a design that was unique in Germany: the Saxon XV HTV was given two, fixed, six-coupled drives. This was mainly because they had doubts about the suitability of the ''Gölsdorf'' system for twelve-couplers. The outside axles were designed as [[Klien-Lindner axle]]s and could be slid sideways by about 37 mm from their centre position. The design of these axles required them to be fixed into an outside [[locomotive frame\|frame]]. In the centre of the locomotive was a double [[cylinder (locomotive)\|cylinder]] each with a high-pressure cylinder for the rear and a low-pressure cylinder for the front drive.

			This design with its low stress on the rails, low inherent resistance and simple weight compensation was promising especially as it also avoided the use of cranked [[driving axles]]. Similar thoughts in the USA during the 1930s led to the development of [[duplex locomotive]]s. Because the cylinders of adjacent axles also had 28 mm of side play, the locomotive could negotiate radii of as little as 170 m. Through the special design of the cylinders the use of crank axles (''Kropfachse''). Whilst this design enabled the steam lines between the high- and low-pressure cylinders to be extremely short, long admission and exhaust tubes were necessary.

			The XV HTV soon proved to be expensive to maintain, particularly with regard to the drives and the hollow axles; as a result no more were procured. Even the usual tendency of all compound engines to sway could not be eliminated by the Klien-Lindner configuration. Wear and tear on the wheel tyres changed the crank settings of the driving gear. That meant that the synchronisation of the drive had to be constantly adjusted, in order to ensure a balanced distribution of effort.

			Nevertheless the engines were successful in practice. They had impressive riding qualities right up to their top speed and wear and tear on the wheel flanges was low. The [[Deutsche Reichsbahn]] took both locomotives over as 79 001 and 79 002, but retired them by 1932.

			The serial number 79 001 was allocated from 1938 to 1947 to [[BLE No. 44]] of the former [[Brunswick State Railway Company]] and from 1951 it was given to the former French locomotive, [[SNCF Class AL T 20\|242 TA - 602]], which ended up in German hands after [[World War II]].

			== Design features ==

			The [[boiler]] barrel comprised 2 shells with a diameter of 1,450 mm. On the top were two [[steam domes]] which were connected by a pipe inside the boiler. Between steam dome and chimney was a sand box. The [[firebox (locomotive)\|firebox]] was made of copper and position over the first axle of the rear drive. The [[smokebox]] [[superheater]] was of the ''Schmidt'' type.

			The [[locomotive frame]] comprised an inside frame of 28 mm thick plate, and an outside frame for the hollow axles of 20 mm thick plate.

			The four-cylinder [[compound steam engine\|compound cylinder]]s were arranged horizontally on the outside and each drove its centre axle

			<!--==Service == -->

			== Sources ==

			* Fritz Näbrich, Günter Meyer, Reiner Preuß: ''Lokomotiv-Archiv Sachsen 1''. transpress VEB Verlag für Verkehrswesen, Berlin, 1984.
			* Manfred Weisbrod, Hans Müller, Wolfgang Petznick: ''Deutsches Lok-Archiv: Dampflokomotiven 3 (Baureihen 61 - 98)''. transpress, Berlin, 1994, ISBN 3-344-70841-4

			== See also ==
			*[[Royal Saxon State Railways]]
			*[[List of Saxon locomotives and railbuses]]

			== External links ==
			* [http://www.aqpl43.dsl.pipex.com/MUSEUM/LOCOLOCO/klienlindner/kl3b.jpg Photo]
			* There is a relevant English-language forum at [http://germanrail.8.forumer.com/index.php Railways of Germany]
			<br />
			{{Saxon locomotives}}

			[[Category:Mallet locomotives]]
			[[Category:0-6-6-0 locomotives]]
			[[Category:Locomotives of Saxony\|15 HTV]]
			[[Category:Sächsische Maschinenfabrik locomotives]]
			[[Category:Railway locomotives introduced in 1916]]

128.214.72.156 at 19:26, 12 August 2012

2012-08-12T19:26:33Z

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I’m Ladonna from Green Point doing my final year engineering in Industrial and Labor Relations. I did my schooling, secured 86% and hope to find someone with same interests in Gardening.<br><br>Also visit my weblog :: [http://s.do-dance.com/romancedramamovie540524 Romantic Movie]

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en>Omnipaedista: edited formatting

128.214.72.156 at 19:26, 12 August 2012