Cut off

In the middle distance the mail train ahead , in the foreground the two sloppy slip coaches , Great Britain approx. 1914

Cutting off (also: Slipfahrt ) is a procedure for shunting trains in which a pulled main train remains in motion, but one or some wagons at the end of the train are detached and braked in order to either bring them to a standstill or to move to another track conduct.

Procedure

The locomotive of the main train decelerates its speed some distance before the turnout or the point at which the wagons to be detached are to come to a standstill and lets the wagons run up, whereby the couplings become so loose that they can be released. The locomotive then increases its speed again, while the suspended wagons follow at the lower speed. The resulting gap can be used to move a deflecting switch so that the suspended wagons take a different route than the ones in front.

application

In Germany, the clipping is considered incompatible with the safety of rail operations. It was therefore only permitted under very simple operating conditions in exceptional situations. However, it can be assumed that it was nevertheless practiced on some small railways with primitive operating conditions.

In the European rail passenger transport , the process was unique in the UK for faster slopes of coaches used. The wagons known as slip carriages were used from around the middle of the 19th century to 1960.

literature

Charles Fryer: A history of slipping and slip carriages (= Oakwood series . No. X60 ). Oakwood Press, Oxford 1997, ISBN 0-85361-514-4 (English).
Victor von Röll : Encyclopedia of the Railway System . Volume 9. Berlin, Vienna 1921, p. 72: Keyword cutting off .

Individual evidence

^ ^A ^b Victor von Röll: Encyclopedia of the Railway System , keyword Slipfahrt

↑ Fachinfoblatt_Kuppeln_von_Eisenbahnfahrzeugeen . Ed .: Administrative Employer's Liability Insurance Association . 2005, p. 4.

↑ An example can be found in Jochen Fink: The Hanauer Kleinbahnen . Kenning & VGB, Nordhorn 2019. ISBN 978-3-944390-13-0 , p. 76, where the siding of a factory was operated in this way until 1921. After crossing a buffer stop it was then prohibited.

[röll-slip-1] A ^b Victor von Röll: Encyclopedia of the Railway System , keyword Slipfahrt

[2] Fachinfoblatt_Kuppeln_von_Eisenbahnfahrzeugeen . Ed .: Administrative Employer's Liability Insurance Association . 2005, p. 4.

[3] An example can be found in Jochen Fink: The Hanauer Kleinbahnen . Kenning & VGB, Nordhorn 2019. ISBN 978-3-944390-13-0 , p. 76, where the siding of a factory was operated in this way until 1921. After crossing a buffer stop it was then prohibited.