urgent help needed on my series 2a restoration

I am restoring a 1967 series 2a. Bought a new wirng loom from auto sparks but cannot get the wipers finished as not sure how to wire up the wiper socket. The live goes to the motor from the fuse board then to the switch as it should. Then from the switch it goes to the wiper socket but I don't know how the wiper socket works or is wired up. Anyone shed any light please?

taken from http://www.serieslandrover.com/article/servicing-lucas-wiper-switch.html


I take no credit for it

thanks for the diagram but it looks a bit different to mine