Ok I'll toss in some more data: the original halfnut on my branded case gem (early gem-only reproducer) has a different pitch than that of the later A/B carriage I sometimes fit to it. I use that carriage so I can use a B or C reproducer on it.
Sent from my iPhone -- Peter [email protected] On Aug 27, 2011, at 5:32 PM, Andrew Baron <[email protected]> wrote: > So here's a question: > > Will the original half-nut on an original early Triumph A properly fit the > feed screw that comes with an Edison add-on 2/4 set-up that was made for the > model B? > > Andy > > On Aug 27, 2011, at 6:06 PM, Rich wrote: > >> Take a look at an early Triumph A. Or a long case red banner Home A. >> >> On 08/27/2011 06:59 PM, [email protected] wrote: >>> >>> >>> >>> I would like to publically thank Mike Tucker for enlightening me. I have >>> only had to work with the feedscrews on my very early machines and never >>> looked closely at the later feedscrews. Mike suggested I get a USB >>> microscope for my computer. It arrived last week and I began to look over >>> later feedscrews. They certainly are 60º feedscrews. Now the question is >>> when did Edison change over? The 1892 Class M project machine of mine had >>> buttress and examining an 1896 Spring Motor it was the same. Looking at a >>> Triumph B, C, D, E, F,& G the feedscrew is 60º threads. That will teach >>> me never to take the later machines so lightly ! ! ! >>> >>> This just goes to prove what I have always said, "You are always learning >>> something new about Edison machines." >>> >>> The fun never stops. A big thank you to Mike. >>> >>> Regards to all, >>> >>> Al >>> >>> _______________________________________________ >>> Phono-L mailing list >>> http://phono-l.org >> _______________________________________________ >> Phono-L mailing list >> http://phono-l.org > > _______________________________________________ > Phono-L mailing list > http://phono-l.org _______________________________________________ Phono-L mailing list http://phono-l.org
