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Bronze Eccentric Straps

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Malcolm Harvey	25/08/2015 19:49:01
30 forum posts 1 photos	Is there any reason why I shouldn't make eccentric straps out of bronze plate instead of gunmetal castings? I have a decent sized piece of bronze plate of appropriate thickness that will unlikely ever be used for anything else. Unfortunately I cannot be more specific as to what type of bronze it is other than to state the obvious that it is less copper coloured than gunmetal but more copper coloured than brass! Loco is Titfield Thunderbolt in 3.5" gauge.
JasonB	25/08/2015 20:11:38
25215 forum posts 3105 photos 1 articles	I've done it in the past with bronze when making engines to my own design where castings are not available but mostly use a slice from a suitably sized bit of cast iron bar for eccentrics
Malcolm Harvey	25/08/2015 20:49:05
30 forum posts 1 photos	Just had another look at them. They are actually turned from a piece of bar. I have two pieces about 5" diameter.
julian atkins	25/08/2015 23:06:56
1285 forum posts 353 photos	Bronze will be superior to gunmetal castings. Bulleid refered to eccentric straps as 'disc brakes'! cheers, julian
Malcolm Harvey	25/08/2015 23:11:12
30 forum posts 1 photos	I think O V S Bullieid himself was a bit eccentric!!
Bob Youldon	25/08/2015 23:41:01
183 forum posts 20 photos	Ah, a Titbolt Thunderfield, a wonderful little locomotive. A piece of bronze is always a better bet than a gunmetal casting which inevitably seem to stretch after a period of use, better still cast iron straps running on steel eccentrics. A good friend of mine always referred to eccentric straps as band brakes! Regards, Bob Youldon

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