End Sealed Gauge Glasses

[duncan webster 1Participant @duncanwebster1]

I’m trying to increases the visible length of the glass in the water level gauge on my vertical boiler. I obviously can’t move the bosses in the boiler. I seem to remember Peter Rich used to advocate end sealed glass. Anyone know where I can find the drawings? Anyone got real experience of them? My main worry is that with 32 tpi bosses I can’t guarantee better than +- 1/64” alignment between top and bottom fitting. Does this matter, or is there some trick to getting it better?

Thanks

[duncan webster 1Participant @duncanwebster1]

[Nigel BennettParticipant @nigelbennett69913]

Have a look at ME 25 April 2008; Neville Evans describes such a fitting for his Schools.

I've made them myself for my current project, but as I haven't got the boiler with its fittings tested yet, I can't comment on how good they are!

[duncan webster 1Participant @duncanwebster1]

Thanks, I'll be in the attic shortly looking for the mag. If Neville Evans reckoned they are OK I'll give it a go

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