Member postings for Mick Henshall

Well its either a gang or I could be a Viking they had some crazy hairstyles, I think I'll call it a parting

Mick

Used a number 4 on me clippers, took it of to trim moustache and guess who didn't put the bloody thing back on before final trim, I am now eligible to join the local gang !! 

Mick the hairless

 

Its been a funny sort of day !! ----Mick

Edited By Neil Wyatt on 13/05/2017 20:41:31

Hi Bob, 

I think Martin was suggesting that monel was more tensile than copper or pb, I was considering pb but copper rivets as you suggest seems the better easier option

Mick

Looks good Rod, did you use 3/32"thick copper for firebox in my book it is shown the same as the boiler at 16g,interesting using rivets for the stays saves a lot of threading for nuts, I see Kennions do a kit ( with unflanged plates)

for around £140 plus? but I'm not sure what is in the kit, having made frames , buffers horns, axleboxes stretchers and erected it all I am at an early stage wheels and axles next

Regards Mick

I keep getting "A" appearing in my text and I don't know why  

Mick

Thanks Phil,  it was suggested monel,gunmetal or copper could be used for stays, copper being least suitable for making the thread I was thinking gunmetal might be a bit more tensile, 

Mick

Good suggestion Jason, I shall do that to be on the safe side also pics of other boilers would be interesting Phil

Mick

Wow! The breadth of knowledge on this forum never fails to leave me in awe, I'm not experienced enough to give advice just try and learn as I go along , good point Phil it is possible to get a copy of the MOT Testers bible so it would be good to see the rules the inspectors use as long as there arn't too many big words in it, perhaps one testers interpretation is different to another, I seem to remember a post recently about a tester wanting to see receipts of materials showing the specs of those materials

My thanks to all especially Jason &Phil for taking the time 

Mick

Thanks Jason, the stays are threaded 5ba,16 per side,2 in the throatplate under the barrel and 2 in thebackhead below the firehole, made from drawn gunmetal 3/16"dia turned down to 0.126" and threaded 5ba gunmetal nuts to complete all stays caulked with silver solder, there are also 2 longitudinal stays one hollow and one solid, plus 2  plate crown stays riveted and s/soldered.

Didn't realise this was all so complicated but thanks to you all its a bit clearer now, perhaps I should have made something with sails on     and yes I will seek advice from an inspector

Regards Mick

Oh I should mention that the M Evans book I am referring to is the 1979 revised Rob Roy construction manual

Mick

I' m getting confused now, just miked the copper I have used for boiler and it is 0.065" , Martin Evans book for Rob Roy says 1/16"-- 16 g, copper and the stay details are from his book also, my mistake for saying 1/16"" instead of 16 g from Jasons calculations this just meets the safety requirements needed , I shall procede with caution thanks for the help gents it is much appreciated

Regards Mick

 

Firebox wrapper 1/16" same as boiler barrel, throat,smokebox,firebox backplate, and backhead all 3/32"thick, stays 16 of on each flat side 3/4" apart, perhaps I could use a 3/32" buttstrap on barrel seam. Your advice on talking to a boiler inspector is the way to go

Thankyou Mick

The problem with a tube is that the outer firebox wrapper has to have extension pieces butt strapped on the inside silver soldered in order to reach the foundation ring, does this make fitting the throatplate more awkward? Boiler steams at 80lb test pressure 160lb, so if I use 64lb working pressure and test to128ln will the engine still steam satisfactorily?

Mick

A fair point Phil, I was quite pleased with it, will do some more scratching

Cheers Mick

Okay thanks, think I may get the solid drawn tube, original won't be wasted as I can unroll it and use on other bits, thanks for the advice better be safe than sorry

Mick

Thanks, calculate thickness of what Jason?

Mick

Hi folks, 

I have rolled uo a boiler from a piece of flat sheet copper and have made a lap joint at bottom, this will be riveted and then silver soldered, is there any problem doing it this way ? The reason I done this is I had problems sourcing 31/4"" dia seamless tube I have found a source but of course there would be extra cost plus with tube extension pieces would have to be fitted at the firebox end  cheers Mick

I fitted x axis scale to back of table, yes some travel is lost but to date hasn'been a problem, the rigidity of my wm14 is very good all in all it is a good bench top machine, would be nice to have a bigger machine but my adcock and shipley horizontal with end mill placed in way of horizontal arbour does it for me being a pretty robust mill its only like using wm14 on its back, (and no I don't)

Mick

Thanks John found it

Mick