Locolines Posted November 28, 2013 Share Posted November 28, 2013 A reflector ? Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 28, 2013 Author Share Posted November 28, 2013 A reflector ? Nope Roy Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 28, 2013 Share Posted November 28, 2013 forms of heliographs Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 28, 2013 Author Share Posted November 28, 2013 I had a hunch that it was signalling and thought I would follow it up, could not believe it when the ebay picture came up !! Oh dear too much information given away too soon. So that was a waste of £5 or so! The inventor lived in Canterbury as it happens. So assuming the ebay image is unreadable :-D What was the primary purpose apart from communications? What are the features of the other variants? How was it intended to be used to avoid enemy observation? Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 28, 2013 Author Share Posted November 28, 2013 forms of heliographs Not as sophisticated as that Wally Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 28, 2013 Share Posted November 28, 2013 they appear to be turned and the angle from vertical can be altered so some form of semaphore Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 28, 2013 Author Share Posted November 28, 2013 they appear to be turned and the angle from vertical can be altered so some form of semaphore Wally yes one variant has an additional flap in the form of a semi-circle "b" on Fig 1 & 3 flapped in & out by the lever "d2" in Fig 4 So what is the variant on the right? Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 28, 2013 Share Posted November 28, 2013 IS one that can be illuminated and differant coloured lens fitted fo use in poor light Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 28, 2013 Author Share Posted November 28, 2013 IS one that can be illuminated and differant coloured lens fitted fo use in poor light Wally yes illuminated for after dark use & option of different colours. This was illuminated by means of a wick. We've not really got the other purpose yet & how enemy detection was minimised. Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 29, 2013 Share Posted November 29, 2013 the only thing l can think is that you could alter the shape so that they blended in to the surroundings Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 29, 2013 Author Share Posted November 29, 2013 the only thing l can think is that you could alter the shape so that they blended in to the surroundings Wally there were various shapes envisaged for signifying different things be that for a particular unit or a particular signal. But that wasn't the way of avoiding enemy observation. Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 29, 2013 Share Posted November 29, 2013 CLIVE l have just looked at the picture on post 19 it appears that a portion of the circle is movable as to obscure the other half ? Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 29, 2013 Author Share Posted November 29, 2013 CLIVE l have just looked at the picture on post 19 it appears that a portion of the circle is movable as to obscure the other half ? Wally yes that was a feature proposed for the more advance model where it was flipped back & forth to reveal a different colour or pattern or flipped in a coded sequence. It wasn't an anti-observation feature. Quote Link to comment Share on other sites More sharing options...
wally dugan Posted November 29, 2013 Share Posted November 29, 2013 as its illuminated is it to do with exposing the light and obscuring it as it would only be of use in poor or dark conditions when it would be required to be lit Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 29, 2013 Author Share Posted November 29, 2013 as its illuminated is it to do with exposing the light and obscuring it as it would only be of use in poor or dark conditions when it would be required to be lit The light is just so that it can be seen at night, its just another variant of the basic model. I don't think there was any intention for the flap model to act as a signalling shutter over the light source. They seem to be two separate variants. Quote Link to comment Share on other sites More sharing options...
fv1609 Posted November 29, 2013 Author Share Posted November 29, 2013 The last answers :-D The main purpose was not signalling but: The way of avoiding enemy observation was simply: Quote Link to comment Share on other sites More sharing options...
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