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Caprotti Valve Gear

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James C Mullaney	27/08/2010 12:09:59
2 forum posts	Hi All, I am thinking about building a model of 71000 Duke of Gloucester. Given that 71000 has Caprotti valve gear I am wondering where to start . Regards and Thanks, James C.
Sean Cave	27/08/2010 13:37:31
9 forum posts	Hi James, Information in English on poppet valves is pretty thin on the ground. There is a brief explanation with a quite useful drawing in "Steam Locomotive Design: Data & Formulae", available from Camden. If my memory serves me correctly, LBSC, who was somewhat of an authority on valve gears, gave a description and drawing of both oscillating cam and rotating cam types in The Model Engineer during 1950. If you are stuck, I could probably dig it out for you. Regards, Sean Cave.
James C Mullaney	27/08/2010 14:27:13
2 forum posts	Hi Sean, I'd appreciate that and thanks, I hope it's not too much bother. Regards, James C.
Sean Cave	27/08/2010 22:35:56
9 forum posts	Hi James, I have found the relevant pages in The Model Engineer, Vol 102, No. 2561, June 22nd, 1950. I have scanned them into my computer, but am sorry to have to admit that I am better with old magazines than I am with computers! I literally don't know how to post the images onto this website (or any other website for that matter). If you can be patient for a day or two, I will contact my local computer expert who will show me what to do. Sorry about that. Regards, Sean Cave.
Brian Oldford	28/08/2010 09:07:08
686 forum posts 18 photos	Try http://www.dukeofgloucester.co.uk/?page=British%20Caprotti%20Valve%20Gear http://www.sarsteam.co.za/downloads_valve.php
Sean Cave	28/08/2010 17:27:54
9 forum posts	Hi James, Check your message inbox. Regards, Sean Cave.

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