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Moving the Points - Hands, Rods, Wires and Machines


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  • RMweb Gold

I thought these were electric point heaters.  Has anyone any pictures of the gas heaters?  Some had calor bottles nearby in cages.

Switch Diamonds at Proof House in 1976, operated by Westinghouse Electro-Pneumatic machines and fitted with gas point heaters

 

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Photo C E Steele

 

Electric point heaters I worked on came in two varieties. The earlier ones were a pad under the slide chairs, whilst the later ones were as the strips shown in post #12.

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Just curious...one of the things I always remember about "the old days" at York station was the electro-pneumatic point machines and how you used to hear a loud "hiss , bang" when they changed. Are there any of these still in service anywhere?

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  • RMweb Gold

From the GWR magazine of December 1913 and largely self-explanatory from the accompanying notes.  The trial site illustrated is almost certainly within the Signal Works yard with the point itself being operated by a normal two way hand lever of the pattern commonly found on the GWR.  

 

As usual the illustrations will enlarge if you click on them.

 

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post-6859-0-07229500-1399405795_thumb.jpg

 

 

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  • RMweb Gold

And was that set up actually installed at Reading West as suggested?

Keith

Reading Main Line West, i.e. the west end of Reading General station and presumably yes as I understand that Economic FPLs had been in use there c.1911 so this was presumably part of replacing them?

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Here is another form of "EFPL", Black's patent, and also ref to as a "Butterfly Lock". This example was once at Wrangbrook Jct Hull & Barnsley Rly, and remained in use until the '60's when the Wath Branch closedpost-702-0-18326400-1399411634_thumb.jpg.

 Despite having had the photo for some years, I note the lock, actualy has "Tyers" cast into it, therefore it must be an LNER replacement for the original Saxby & Farmer apparatus. 

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  • RMweb Gold

Two more economical locks.

 

This Midland one was at Kings Norton until the late 1970s

 

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Another type at Willesden Jn LL in 1988, this time based on a similar mechanism to the Westinghouse EP machine.

 

post-9767-0-44895200-1399413459.jpg

 

Photographs C E Steele

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