Bissel frame
The Bissel frame , named after Levi Bissell , is a very simple and often used variant to mount a wheel set - Bissel axle - mostly of a steam locomotive so that it can move in curves.
description
In the case of the Bissel frame, an auxiliary frame with an axis is used, the pivot of which is shifted along the longitudinal axis of the vehicle . Therefore, the wheelset can not only rotate around the vertical axis, but is also swiveled radially to the side, which is necessary for steam locomotives, since the position on the track is already specified here by the driving and coupling wheel sets . A return spring or counter link is installed to allow the Bissel frame to participate in driving the vehicle.
Some older electric locomotives , for example the Swiss SBB Ae 4/7 and the German DR series E 95 , had Bissel racks when the driving axles were arranged in the main frame and not in bogies. A Bissel frame was also used on the V 140 001 diesel locomotive .
A special form with an external frame is the Delta towing frame , which was used in particular as a trailing frame for steam locomotives with tender .
See also
literature
- Andreas Schäfer: Steering frame. In: Structure and technology of the steam locomotive. Archived from the original on December 27, 2007 ; Retrieved January 27, 2011 .
- Lexicon railroad . Transpress VEB publishing house for transport . Berlin, 1978