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This guy was one smart SOB
You're thinking of Rudge-Whitworth. According to a couple of sources, Rudge and Whitworth were two bicycle companies, but Whitworth was started by a fellow named Pugh.Aren't the center release wheels on most of the British cars also a Whitworth design? I've heard them referred to as a Whitworth style wheel in the past but not sure if there is a connection.
I do have a few British Seagull outboard motors that still require my Whitworth sockets and wrenches. I have some broken off bolts that I need to extract, and access to a machine shop, but I do not have a set of Whitworth tap and die tools for the threads.
You're thinking of Rudge-Whitworth. According to a couple of sources, Rudge and Whitworth were two bicycle companies, but Whitworth was started by a fellow named Pugh.
As for the tap & dies, Amazon: https://www.amazon.com/Whitworth-Br...=2025&creative=165953&creativeASIN=B01MQ2M3C9
Those appear to be Whitworth only. Fine thread were BSF, coarse thread BSW.
British Standard Fine and Whitworth. Most cars, engines, motorbikes etc., had more BSF than Whitworth threads. Head sizes were suitable for Whitworth tools, many are marked with 2 sizes, like 1/4 W, 5/16 BSF.
BA is another thread form, found in electrics and occasionally carburetters.The one I like is a big one marked OBA - whatever that is. I think I used it once. Don't try to cheat if you don't have Whitworth wrenches. Ever skin your knuckles when the wrench slips? I would never use an open-end wrench if I could avoid it.
Almost everything you need to know about British threads.
David
https://britishfasteners.com/threads/bsb.html
Almost everything you need to know about British threads.