Central Line Conductor Rails

[Deleted]

I read somewhere that the posi rail on the Central was set at a different height than other lines due to the line originally being three rail. Is this still the case? If so, how do battery locos operate as they can operate on any line?

Also, if the posi rail is higher, how does the 1960TS operate on other lines, such as the Met?

Thanks

[q8]

Positive rail on the central is set higher due to a different way of tunnel construction. I don't know the exact difference but but other stocks (E.G. 1967) could operate over the line as the hieght was only a matter of inches and the auto shoe adjusters allowed for that.

[compsci]

There's an explaination in the history and rolling stock parts of Clive's Underground page for the Central Line:

www.davros.org/rail/culg/central.html

The higher positive is needed as the tunnels aren't quite round following enlargement.

[russe]

I think the Central Line stock shoegear is fitted with an extra linkage to accomodate the 1.5" higher than normal positive rail between White City and Liverpool Street.

Russ

[Deleted]

Used to have lots of trouble with trains losing shoes, especially east of Liverpool Street towards Bethnal Green. I belive the technical term used is Extra High Positive Rail.

[q8]

Used to have lots of trouble with trains losing shoes, especially east of Liverpool Street towards Bethnal Green. I belive the technical term used is Extra High Positive Rail.
------------------------------------------------------------------------
AIRC that problem was eventully traced to the floodgate like sill that exists in the stretch. About the same distance as the end of the sidings on the main.