1952 Series 1 - Rear Brake Shoe Springs

Does anyone have the pdf section of the workshop manual for the brakes on a Series 1, 1952 ? Plenty of sites with the rest of the data but nothing on brakes.
I can't understand how the springs and the adjuster on the backplate work together, my adjusters just go round and round, not attached to shoes or spring !!
Thanks

Will have a look on my main comp think I have something

Do you have the two rollers either side of them ??

Rollers ? I'm doing the rear brakes, not sure what the rollers are.