![Image](http://www.goughecon.com/elecon5.jpg)
A Bucket conveyor to transfer items by the stack.
Video of it in action: https://www.youtube.com/watch?v=6_Wr-J9pkuo
Could add several pieces for building it:
A piece to 'dump' stuff from the buckets into a chest (ideally smart settable and connectable to networks)
A special type of block that can be fed by several inserters to fill the buckets
Straight conveyor section
Inclined conveyor section (would be nice if it was possible to make it change elevation to go over other ones as it is one of the key features of it)
If you don't feel that buckets make sense for transferring items by the stack (ie, iron plates) then could just use large bins in the graphic instead.