If I remember this right loading sheep there would be two ramps one beside each other. One ramp would feed the upper deck, the lower deck would feed by the lower ramp however the sheep on the lower ramp would pass under the upper ramp so that the two decks could be loaded at the same time. There would be foot plats to allow the wools to enter the car and sliding fences on each side of the space between the ramp and the car sides to keep the sheep from falling off the foot plat for double deck loading the would be two per ramp. For single deck loading the cows would use the lower ramp and go straight into the car there would be foot plats and side fences for loading cows as there would be for sheep. This is based on so drawing that showed in up somewhere and this what my stock loading ramps are set up as.
One must keep in mind that no two stock loading ramps would be the same where there built have a lot to do with the layout
Bill.
from up north