It is a design idea for a wine grape harvester.
The harvester has four hydro engines coupled apart with every weel and conected to one main diesel engine. It is made in purpose to have traction on all weels and in the same time to have four independent weels that can have a vertical lift (maybe different for every weel) in the time when the harvester is going along the vineyard placed on the hills and need to remain almost all time in the horizontal position.
...all the harvest is colecting in the middle tank.
It is transported from that two colecting moduluses (that are in the forward position when the harvester works in vineyard).
...working in the vineyard.
The harvester is going between the strings of vine grape bushes.
Bushes are passed by the colecting moduluses, where the grapes are colected and transported into the tank.
...colecting moduluses have a mechanism that shakes the bush, that produces the falling of the grapes. After this special scoops take the grapes from the down part and lift it up till the top where the grapes are poured out on the rolling band that transport the crop in the tank.