Has anybody played with one of these? I recently acquired most of a badly started one and am casting some bronze replacements for the nasty ally bits but have no destructions. A scan of said info would be ideal or just decent photos so I can work it out - and probably 'improve' it a bit knowing me ;D
Thanks Paul, I think my problem at cursory examination was I was expecting a crank, hadn't realised the potmetal disc with an eccentric hole was it. Something to do Boxing day anyway, a bit eyes down and go for it at work at present - did I say 'bah - humbug ' already?