What's wrong with lamp? I used to do the lamps at Apedale & have fettled quite a few over the years. I may be able to advise if you let me know what model it is.What time is this on till? I have an old Protector that I'd be keen to get looked at but I'm working Saturday.
'Pits and Power Station of the UK' on Facebook is probably your best place to post the pics. If you're not on Facebook I'll put them on for you if you wish. There's also the 'Mining Memorabilia, Buy, Sell & Swap etc' also on Fbk it's mainly for what it says but you might get someone who knows.Nick . I have got hold of a couple of pickaxes, won them of eBay seemed to good of deal to miss . They are from the whitwick area, if I post images on here can you share them ? I looking to find what the markings mean . Hopefully I am going to get the ex miners name to find out the exact pit/ pits .
And IIRC, once they'd been drawn out, they were tempered to "Pidgeon wing blue". ( My great grandad & later my grandad, were foreman blacksmiths at Sneyd Colliery). "Pidgeon wing blue" was my Grandads description, when telling me how to do it. Daft, the things you remember.The blade size will vary as they were resharpened. The whole idea is that a collier could knock back the wedge and remove the blade. He then took the blade up with him at the end of the shift so it could be sharpened for the next day. They were sharpened by the blacksmith, heated and hammered out back to length again with a new point hammered out. A collier may have had multiple blades for a single shaft. Depends how hard the coal was that he was undercutting. Eventually the blades became too thin and were discarded.
A common make in North Derbyshire was the Acme Patent Pick co. of Sheffield.
I've so far heard back from two pit blacksmiths who re-profiled/sharpened and re-tempered these in the 1960s/70s. Apparently still in use today with Forest of Dean miners etc. No-one has yet come up with what initials mean.
You worked when the pits were active I guess... you any idea why this Shotlighter? It seems to have a lot of folks puzzled, is really quite rare to find, that is lamp glass with Uranium sintered glass...What's wrong with lamp? I used to do the lamps at Apedale & have fettled quite a few over the years. I may be able to advise if you let me know what model it is.
Ah I didn't realise Nystagmus had ended before the protector lamps became available. I think the type 6 was 1929? This example is a bit of a franken lamp. It has the upper part of an RS and a base that was an SL. But I spotted the glass immediately on the listing so purchased anyway. You can generally tell as the glass will have a yellowy tinge, especially in natural light. It is basically similar to Vaseline glass that was very popular from the mid-19thC, but not quite as colourful.That type of lamp was not around in the Nystagmus days. That is a comparatively modern lamp.
No idea about the glass but I will try my lamp with UV, just for fun!