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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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9th Dec 2016, 5:33 pm | #41 | |
Triode
Join Date: Aug 2016
Location: Lampeter, Ceredigion, Wales, UK.
Posts: 35
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Re: Telegraph poles: historical data?
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The 16's with the larger caps were used for lightning protection and used protectors ( black) , and there would be an earth strap run down the pole to the ground. |
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9th Dec 2016, 10:37 pm | #42 | |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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Re: Telegraph poles: historical data?
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16th Dec 2016, 3:36 pm | #43 |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,874
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Re: Telegraph poles: historical data?
Well, here's one today in inner-city Manchester. But no date code, pole strength code, height code. Thanks so much, whoever it was on this thread who turned me on to this. My neighbours will have me arrested...unless I wear my hi-vis coat and pretend to be working for BT!
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16th Dec 2016, 4:13 pm | #44 | |
Octode
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,874
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Re: Telegraph poles: historical data?
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Off-topic (unless you count trolley busses as general vintage electrical technology) - but it's an excellent low-key museum led by volunteers. |
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16th Dec 2016, 8:44 pm | #45 | |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Telegraph poles: historical data?
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Somewhere I've got one I recovered from the top of a pole in a local 'recycling' place which sold pole to farmer - surprising what I recovered from poles there over the years. Even found a complete 'Line Connector No 1' in excellent condition - I wonder how many of those have survived? Mentioning bare wire junction routes above - does anyone know when the last bare wire junction routes were last in use? |
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17th Dec 2016, 11:12 pm | #46 |
Octode
Join Date: Jan 2013
Location: Barnsley, South Yorkshire, UK.
Posts: 1,517
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Re: Telegraph poles: historical data?
This fine specimen is still doing good service in the Wakefield area with a similar companion further up the street.
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18th Dec 2016, 9:04 am | #47 |
Retired Dormant Member
Join Date: Dec 2007
Location: Shropshire, UK.
Posts: 3,051
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Re: Telegraph poles: historical data?
Should we conclude that a proper finial does a better job of protecting the pole than a bit of bent tin, and is therefore worth the investment?
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18th Dec 2016, 10:04 am | #48 |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Telegraph poles: historical data?
Finials were introduced in the 1930's with the introduction of 'ring type DP's and the PBJ dropwire' (the type on eccentric pulleys) for use in residential areas. The galvanised roof gave just as good protection but was used on pole routes.
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18th Dec 2016, 2:01 pm | #49 |
Octode
Join Date: Jan 2013
Location: Barnsley, South Yorkshire, UK.
Posts: 1,517
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Re: Telegraph poles: historical data?
Well I would say so BUT, as 'short-termism' is in favour I assume the modern practice would conclude that saving say, £5 a pole, would over rule shortening the life of the pole by half. I can hear the accountants now "it may be £5 a pole to you but 200,000 poles - that's a million quid!"
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18th Dec 2016, 4:40 pm | #50 |
Octode
Join Date: Jan 2003
Location: Guildford, Surrey, UK.
Posts: 1,959
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Re: Telegraph poles: historical data?
I have a 16" cast aluminium finial (9" base diameter) which I saved from a 1951 dated pole which was changed a few years ago. The BT man who recovered it for me explained that there was a surplus of aluminium after the war and this presumably caused the switch from turned wood to cast metal.
Ron |
18th Dec 2016, 8:43 pm | #51 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Telegraph poles: historical data?
That's crying out for pole in your garden to top out. You could mount an outside light on it to add a function
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19th Dec 2016, 12:31 am | #52 |
Hexode
Join Date: Jul 2003
Location: Leeds, West Yorkshire, UK.
Posts: 458
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Re: Telegraph poles: historical data?
You've got me at it now. There are three just like that Wakefield one in the street behind us. Never noticed before.
When I was quite young I remember a GPO training place in Otley where they presumably trained linesmen. There were poles of varying height in a field ranging from full height to just the top bit. I was convinced for quite a few years that this was where they grew telephone poles! |
19th Dec 2016, 1:28 pm | #53 | ||
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,642
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Re: Telegraph poles: historical data?
Is anyone able to help with this, the reason the thread was reopoened
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19th Dec 2016, 9:51 pm | #54 |
Tetrode
Join Date: May 2013
Location: Enniscorthy, County Wexford, Ireland.
Posts: 74
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Re: Telegraph poles: historical data?
the bicycles in the pictures appear to be fairly modern ie 1940s on .the poles appear to have been stripped and may be just serving a few local subs. you would expect to see some wires between the two poles.
regards pierce ei7ka |
20th Dec 2016, 12:26 am | #55 |
Octode
Join Date: Jan 2013
Location: Barnsley, South Yorkshire, UK.
Posts: 1,517
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Re: Telegraph poles: historical data?
Well I don't know but looking at the poles, the number of circuits on them, the dress of the people, the fact the road has a kerb - then my estimate would be inter-war years. If I had to put money on it 1920-25.
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20th Dec 2016, 7:23 pm | #56 |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Telegraph poles: historical data?
The pub on the left had been demolished by 1939 and its replacement built further back from the road as it now is - according to the 1939 edition (probably surveyed earlier) large scale OS 1:2500 map if that helps?
See https://www.old-maps.co.uk/#/Map/555...1516/12/101224 you'll probably have to zoom out. |
20th Dec 2016, 11:07 pm | #57 | |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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Re: Telegraph poles: historical data?
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21st Dec 2016, 12:54 am | #58 | |
Dekatron
Join Date: Jan 2003
Location: Bradford on Avon, Wiltshire, UK.
Posts: 3,310
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Re: Telegraph poles: historical data?
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They are quite big things to come crashing down which is why most of them have now been removed. After being exposed to British weather for 60-70 years most of them are/were quite rotten. One can sometimes see the iron spike that used to support the finial on the top of some very old poles. Incidentally all telecoms poles SHOULD have a date of preservation. I was up a 1952 one today, still perfectly fine, with two, four insulator arms . There was also a 1938 pole in the route, but I couldn't get up that one as it's test date had expired.
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