Posted by Bill Simpson on October 26, 1999 at 21:21:52:
In Reply to: Looking for information on Gear Dimension Standardization in UK posted by Christophe Fournier on October 07, 1999 at 16:45:07:
"Machinery's Handbook" is a popular reference for all kinds of gearing, including British standards.
The Library of Congress Catalog Card No. is 75-1962, but you can probably find it on the internet.
HTH