sliders

[David Bryant]

I was reading a report on a (sadly no longer) Taylor six of 1894. This was a 
'modern' installation in that it had a cast iron lowside frame, cast iron 
headstocks, etc. However, they stays were of normal type and the sliders 
described as being 'metal blocks'. Preumably this means a metal block 
sliding on a track. I've not seen these - can anyone describe them in detail 
and provide any other example - presumably they were only used for a short 
time before Hastings stays became the norm.

David