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Post by londonse on Oct 27, 2010 8:45:29 GMT
I have recently bought a copy of "Signalling Atlas & signal box directory" with regard to LU it states that there are 13 power frames left as of 1/1/10. I know of 5 that are still in operation these being:
Whitechapel
Edgware Road
Hammersmith M
Harrow on the Hill
Rickmansworth
If you include Harrow N & Harrow S this then increases to 7, any idea of any others?
Also the term TCB is shown for Network Rail, I thought this included LU?
Paul
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Post by Harsig on Oct 27, 2010 14:16:54 GMT
I have recently bought a copy of "Signalling Atlas & signal box directory" with regard to LU it states that there are 13 power frames left as of 1/1/10. I know of 5 that are still in operation these being: Whitechapel Edgware Road Hammersmith M Harrow on the Hill Rickmansworth If you include Harrow N & Harrow S this then increases to 7, any idea of any others? Also the term TCB is shown for Network Rail, I thought this included LU? Paul Well the publication you mention above lists 13 locations with power frames other than Westinghouse V style. These include the seven you listed above and also Ealing Broadway (District), East Finchley, Finchley Central, High Barnet, Liverpool St (Met) & West Kensington East. The three Northern line locations were all once manned signal cabins where the lever frame was subsequently modified for remote operation. I'm not certain but the same may well apply to Liverpool Street and West Kensington East, but I believe that the frame at Ealing Broadway was always intended for remote operation as with Harrow North and Harrow South. As for TCB, London Underground does not generally use the term simply because all lines fall into that category and so there is no need to make a distinction in the way that Network Rail does. |
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Post by railtechnician on Oct 27, 2010 17:14:26 GMT
Ealing Broadway is a converted power frame, an N2. It's one of the sites that I used to maintain and these days serves only the District line, all the Central signalling having been transferred to the newly built SER when the Central was resignalled. The old signal cabin was upstairs and though long gutted out I believe that it did remotely control the power frame from a control console before control was transferred to Earls Court, the cabin itself being quite small.
I think I can recall Liverpool Street being manned in the days when the terminal platform was still in use. Along with Moorgate and Barbican (which was still manned in my earliest days with LT) control of Liverpool Street passed to Farringdon cabin which controlled multiple sites from a console. In the late 1980s resignalling of the Aldgate area saw transfer of that to Farringdon too with a second control console, everything from just outside Kings Cross through Aldgate and Minories to Tower Hill being controlled from Farringdon via the Baker Street computer. I must admit that I thought Liverpool Street frame had long gone as the cabin which housed it had looked derelict for years although the relay room beneath was definitely still in commission when I was surveying the site for CrossRail back in 1995.
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Post by londonse on Oct 27, 2010 18:11:05 GMT
I have recently bought a copy of "Signalling Atlas & signal box directory" with regard to LU it states that there are 13 power frames left as of 1/1/10. I know of 5 that are still in operation these being: Whitechapel Edgware Road Hammersmith M Harrow on the Hill Rickmansworth If you include Harrow N & Harrow S this then increases to 7, any idea of any others? Also the term TCB is shown for Network Rail, I thought this included LU? Paul Well the publication you mention above lists 13 locations with power frames other than Westinghouse V style. These include the seven you listed above and also Ealing Broadway (District), East Finchley, Finchley Central, High Barnet, Liverpool St (Met) & West Kensington East. The three Northern line locations were all once manned signal cabins where the lever frame was subsequently modified for remote operation. I'm not certain but the same may well apply to Liverpool Street and West Kensington East, but I believe that the frame at Ealing Broadway was always intended for remote operation as with Harrow North and Harrow South. As for TCB, London Underground does not generally use the term simply because all lines fall into that category and so there is no need to make a distinction in the way that Network Rail does. I didn't count those ones as they are controlled by control rooms, but as you mention they are all power frames. Paul |
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Post by JR 15secs on Oct 28, 2010 7:36:18 GMT
I have recently bought a copy of "Signalling Atlas & signal box directory" with regard to LU it states that there are 13 power frames left as of 1/1/10. I know of 5 that are still in operation these being: Whitechapel Edgware Road Hammersmith M Harrow on the Hill Rickmansworth If you include Harrow N & Harrow S this then increases to 7, any idea of any others? Also the term TCB is shown for Network Rail, I thought this included LU? Paul Well the publication you mention above lists 13 locations with power frames other than Westinghouse V style. These include the seven you listed above and also Ealing Broadway (District), East Finchley, Finchley Central, High Barnet, Liverpool St (Met) & West Kensington East. The three Northern line locations were all once manned signal cabins where the lever frame was subsequently modified for remote operation. I'm not certain but the same may well apply to Liverpool Street and West Kensington East, but I believe that the frame at Ealing Broadway was always intended for remote operation as with Harrow North and Harrow South. As for TCB, London Underground does not generally use the term simply because all lines fall into that category and so there is no need to make a distinction in the way that Network Rail does. Charing Cross Northern line is still a frame so that's an extra one for the list, the publication has an error. Ealing Broadway is different from all the rest of the remote controlled frames in that it was never worked as a frame only in emergency's all the others were converted. |
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