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20th August 2013, 11:18 PM
#41
Oil lamp flame is a yellow colour , You may ned to fit a warmer colour lamp , if you re using an incandescent lamp an LED replacement with a warm white may project. A correct colour , or try a yellow Pygmy lamp to test colour
Rob Page R855150 - British & Commonwealth Shipping ( 1965 - 1973 ) Gulf Oil -( 1973 - 1975 ) Sealink ( 1975 - 1986 ) 

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21st August 2013, 06:55 AM
#42
Re: gimble lamp/marker lamp

Originally Posted by
robpage
re the colour , this may be of interest
Marine LED Masthead and Running Light Bulb Replacement Assembly
I have seen these or rather two colour lamps used on rope stays with a line attatched to the top ring , so the lamp stayed true to the mast , on an old sailing yacht , It was an oil lamp so needed refilling , relighting and hauling back up every night
It was compulsory for every ship fitted with electric navigation lights to carry a spare set of 'oil' navigation lights, no matter what size the ship. On the foremast and mainmast lights the stabilising stays ran from the deck or top of the masthouse to the underside of the electric mast lights thus maintaining the correct vertical distance between the foremast light and mainmast light, which if memory serves me correctly the mainmast light was 15 feet higher than the foremast light. These stays were permanently fitted on all the ships I served on. I should imagine (but do not know) that these oil lamps have been replaced by battery operated lights or have battery operating lights fitted within the lights as a failsafe in these modern times.
You've certainly got our brain cells working Jayne, even if sadly we are no nearer to solving your question to everyone's satisfaction
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21st August 2013, 07:55 AM
#43
I have just realised why the very old mast head light I have is on a gimble so the lamp will not roll with the ship. It is an oil lamp only, so the oil will not spill and set fire to the mast head. am I right??
Cheers
Brian.
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21st August 2013, 04:09 PM
#44
Don
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21st August 2013, 05:12 PM
#45
Re: gimble lamp/marker lamp

Originally Posted by
Don Rafferty
Reading the article, Don may have solved or thrown a spanner in the works, because maybe the blue may have replaced green in convoys as stated, or are we chasing a red herring. I know in our Suez convoy we retained the green, but then again we were not being stalked by U-Boats, as far as I know. Perhaps the blue was visible over a lesser distance than green so was just to warn other ships in close proximity of your own presence. As we bridge lookouts know that green shows a long way and is spotted much earlier than a red and in the distance the green does at times appear white. Just a thought
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21st August 2013, 07:14 PM
#46
A further thought - I'm wondering if there has been a bit of DIY tinkering with the colours for Patriotic sake - Red, White and Blue.
Don
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21st August 2013, 08:38 PM
#47
Re: gimble lamp/marker lamp

Originally Posted by
Don Rafferty
A further thought - I'm wondering if there has been a bit of DIY tinkering with the colours for Patriotic sake - Red, White and Blue.
That was one of my thoughts as well, it does look very patriotic :-) xx
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21st August 2013, 10:11 PM
#48
Re: gimble lamp/marker lamp

Originally Posted by
JayneDiffley
That was one of my thoughts as well, it does look very patriotic :-) xx
Sacre bleu mon ami it would look very French !!!
I will stick with the convoy theory and the blue not being visible over a long distance
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21st August 2013, 10:48 PM
#49
Re: gimble lamp/marker lamp
Hi Jayne,
In a last ditch effort to clarify the 'faded lens' theory and at risk of being regarded by you as a complete and utter twit, I would ask the following:-
1. Am I correct in my understanding that the blue portion of the lens can be removed from the lamp ?
2. If the answer is 'yes' and you haven't already done so, would you remove same and closely inspect the interior edges and corners of the lens, i.e. those parts that may not have have been so directly exposed to the sun, etc., ( due, perhaps, to their manner of fitting within the lamp) and check to see if there is any hint of 'greenness'
3. If the outcome to this is in the negative, then I shall withdraw from adding further confusion to that which already exists.
...........Roger
P.S. Have you considered making a 'phone call to a chandler or dealer in used boat/ship accessories and see if they can shed any light upon the mystery. I'm assuming of course that such people do still exist in the U.K. You never know, Jayne, perhaps one of the gallant gentlemen of this site might even make that enquiry for you. They just love to help a lady in distress.
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22nd August 2013, 06:57 AM
#50
Re: gimble lamp/marker lamp
after all the ideas thrown around I think it is probably just a lamp with red white and blue lenses ....ie a decorative lens regards cappy
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