This part is very nearly ready for welding up and riveting now I've finished making the copper rivets and shaping the friction linings. Gives me 19.5 sq ins(126sq cms) of contact, so plenty of grip.
The bar with the springs will serve to keep the "Shoes' open/clear when the lever is released and will offer equal resitance pressure when shoes are closed onto the PTO by 'over centre' lever lock and cable operation-
Regards