French had a male thread and a setscrew. I have a few.
Regards,
Jerry Moos
ray green <greenjersey@ntlworld.com> wrote:
Holdsworthy Aids 1963 seems to cover this topic. There are three types:-No1030 (English)with locking grub . I used one of these on an Apex alloy pump that was curved at the adaptor end.
1030/3 (French) to fit Zefal, no idea about this type.
1030/2 ( Italian) with square boss, I guess for Silca pump.
All three types sold for ten shillings but I won mine for a prime in a thirds/junior race!
ray Green, Brighton, England