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Winchester Chesil - Siemens Power Frame Circuits

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Re: Winchester Chesil - Siemens Power Frame Circuits

Unread postby Pete2320 » Sun Dec 24, 2017 1:05 am

Fast Line Floyd wrote:
scarpa wrote:Although used as a test bed for a number of years ,why if it was successful was the power frame removed and a standard frame re-installed? A similar power signalling frame was installed at Slough Bath Road but with power operated points with the compressor housed in the nearby loco shed, this to was removed and a W. R. frame installed.

Slough Bath Road was not the same as Winchester (or indeed Newport East or West) as these three boxes set routes and cleared signals with one lever movement where as Bath Road was a more conventional use of a power frame and had one lever per function similar to many later power frames. The Bath Road frame would have more in common with Didcot North Junction, Yarnton, and the Snow Hill frames.

But all four (five) of those were quite different to each other!

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Re: Winchester Chesil - Siemens Power Frame Circuits

Unread postby Fast Line Floyd » Sun Dec 24, 2017 2:13 pm

Pete2320 wrote:
Fast Line Floyd wrote:
scarpa wrote:Although used as a test bed for a number of years ,why if it was successful was the power frame removed and a standard frame re-installed? A similar power signalling frame was installed at Slough Bath Road but with power operated points with the compressor housed in the nearby loco shed, this to was removed and a W. R. frame installed.

Slough Bath Road was not the same as Winchester (or indeed Newport East or West) as these three boxes set routes and cleared signals with one lever movement where as Bath Road was a more conventional use of a power frame and had one lever per function similar to many later power frames. The Bath Road frame would have more in common with Didcot North Junction, Yarnton, and the Snow Hill frames.

But all four (five) of those were quite different to each other!

Pete

Indeed so.
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