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PostPosted: Fri Jan 04, 2019 12:51 am 
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Re: TomWilliams2000 enquiry regarding his mystery "purple" Coughtrie light.

I know just what you are referring to. The purple tinge of the bowl is very distinctive. We had them at both infant and primary schools back in the 70s - very tough fittings!

They are indeed by Coughtrie and are referred to as a SBB-15.

Interestingly, a chap on Ebay is selling some NOS fittings for about £25!

Quite a retro item now apparently.

Below is a scan from my "TN Robinson Ltd" electrical catalogue, circa early 70s.
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The Coughtrie range of the period is comprehensively stocked as you would expect.

Anyway, the SBB-15 is listed as being a surface mount fitting, with knockouts for conduit entry on the top, bottom and rear. There was also the BB-15 which was for back entry mounting only, via a BESA box.

Both versions were designed to accommodate a 150W GLS lamp although interestingly, there is no mention of the polycarbonate bowl. These fittings were supplied with "Opaline" glassware only. Presumably, Coughtrie offered polycarb as an option in subsequent batches, before abandoning glass bowls entirely.

Referring to a later "HP Hunter Ltd" catalogue, the same light is still offered, however the design of the polycarb bowl is more oblong in design (although it would probably still have that characteristic purple tinge).
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The polycarbonate bowl was pretty much indestructible, as evidenced below.

This member of the class managed to stay awake, even when the local primary school was being dropped on top of it!
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"As we moved along in a little procession, I was delighted with the illumination of the streets. So many lamps and they burned until morning, my father said, and so people did not need to carry lanterns."
Mary Antin - US author & activist. 1881-1949.


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PostPosted: Fri Jan 04, 2019 5:55 pm 
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I've also seen them with a red bowl with the word "help" on the bowl, this was at a nursing home that was built during the 1970s


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PostPosted: Fri Jan 04, 2019 6:06 pm 
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I have a couple of BB.15's and a plastic bowled SBB.15 in the collection.
Both of my glass bowled BB.15's and my plastic bowled SBB.15 have all got opal/white covers, but I have seen some very purple glass covered versions on an old (now demolished) school which was built in the mid 60's.
I've also got a BH.10 Bulkhead, which is mentioned below the BB.15's in the catalogue page above.
I have some photo's of them posted in this thread.
viewtopic.php?f=8&t=515&p=27292#p27292

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PostPosted: Tue Jan 15, 2019 9:34 pm 
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Beta 5 wrote:
I have a couple of BB.15's and a plastic bowled SBB.15 in the collection.
Both of my glass bowled BB.15's and my plastic bowled SBB.15 have all got opal/white covers, but I have seen some very purple glass covered versions on an old (now demolished) school which was built in the mid 60's.
I've also got a BH.10 Bulkhead, which is mentioned below the BB.15's in the catalogue page above.
I have some photo's of them posted in this thread.
viewtopic.php?f=8&t=515&p=27292#p27292

Very interesting, they seem to be typical for late 70s early 80s buildings


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PostPosted: Tue Jan 15, 2019 10:25 pm 
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Re: SBB.15 bulkhead fittings.

In this era of  LEDs with their 20 year plus life span, it seems incredible that these fittings when originally installed, would be routinely fitted with a 150W GLS lamp with a projected life of just 1000 hours. Granted there were also double life lamps around, but in today's more eco aware environment, 150W seems an awfully excessive load for a bulkhead.

The chap with his ladder would have been kept busy in those days, especially on large installations. No doubt, bulk relamping was the rule back then - unlike today.

Interestingly, I have a large box of clear 150W GLS lamps, which were obviously bulk changed in the 1970s (the date when installed is written on the caps). They were made by Thorn, under their Omega brand. Omega lamps were typically specified by large volume users such as LAs and the NHS.

Judging by the state of the filaments, the previous user does seem to have had their money's worth out of them, although none have been burned to extinction.
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You will notice these are 2500 hour lamps. Although double life lamps had been around for a good while, Omega managed to squeeze a little bit more out of their filaments, but at the expense of light output.

_________________
"As we moved along in a little procession, I was delighted with the illumination of the streets. So many lamps and they burned until morning, my father said, and so people did not need to carry lanterns."
Mary Antin - US author & activist. 1881-1949.


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PostPosted: Sun Jan 20, 2019 11:27 pm 
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Continuing the theme for unidentified lanterns, perhaps you can help with these two.

The first I'm afraid is one of those "lost opportunities which never was", in so much that I only came across it whilst nosing around GSV. Sadly , it s too late to do anything constructive but there you go!

The location is Richmond Road in the sprawling Trafford Park estate, although I think it is actually classed as Stretford.
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Although a fairly mundane building, it does (to me anyway) have something of interest. It has on its wall what I think is quite a vintage sodium lantern. It certainly isn't a pipe or bracket.

Anyway, the lantern is seen here perched on the wall of a factory building.
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Although not too clear, I believe this was a Revo C12662 for a 140W SO/H. (See images below to compare). Can anyone confirm this?
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Whilst looking reasonably modern, the 1980s style cladding attached to the exterior, hides the fact that the place was probably built in the 1950s. Presumably still active at the time, it looks like the lantern has been left in situ / refitted, with the (new) cladding applied around it.
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Since the GSV was compiled, the entire complex has been demolished (Google maps show the latter stages of the work in progress).  Suffice it to say, this rare survivor will no doubt have been lost at the same time.

The second lantern was another one which I came across, whilst a peruse on the  many urban exploration sites. One of their more recent explores was the former HMP Holloway.

In one of the exterior areas is this column with an unusual post top lantern. I have seen one of these before (on some b/w film footage somewhere). The square canopy and general oblong construction is quite distinctive.

It actually looks like two separate MCF lanterns fixed back to back, on one base casting. The bowls look to be individual too!
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Apparently, HMP Holloway was rebuilt in the 1970s, therefore it is reasonable to assume it dates from the same period.

Any ideas on the manufacturer - Phosco, Philips?

_________________
"As we moved along in a little procession, I was delighted with the illumination of the streets. So many lamps and they burned until morning, my father said, and so people did not need to carry lanterns."
Mary Antin - US author & activist. 1881-1949.


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