Tension weight
Tension weight on a catenary mast of an electrified railway line
A tensioning weight is on a wire attached or a chain hoist (counter-) weight of concrete or cast iron , which serves the driving line of a catenary to tension with a constant force, while allowing the temperature-dependent expansion of the wire. The use of tension weights is necessary when the wire has to be tensioned at a certain height, as is the case with overhead lines of electric trains or trolleybuses , or when the mechanical rope tension has to be kept independent of external influences, which is the case, for example, with aerial ropeways . Similar weights are also used for the tensioning systems in the double-wire cables of the signal boxes.
Web links
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Individual evidence
- ^ Electric railways. In: Viktor von Röll (ed.): Encyclopedia of the Railway System . 2nd Edition. Volume 4: Express Train Driving Rules . Urban & Schwarzenberg, Berlin / Vienna 1913, pp 207 -288.
- ↑ Tensioning mechanism. In: Viktor von Röll (ed.): Encyclopedia of the Railway System . 2nd Edition. Volume 9: Seaport tariffs - transition curve . Urban & Schwarzenberg, Berlin / Vienna 1921, p 94 -96.