Ha ha yes that’s how it worked, and a ram to tip the whole thing for unloading. Granda was a great inventor back in the day, that stone fork was originally fitted to a Claas jaguar chassis with a stone box built on the rear, so you could pick stones from the seat. Used to be pulled by an MF 165 . He hated picking stones the old fashioned way of them walking behind the tractor with a 3 ton trailer on. When we got a Ford 6610 it had front linkage so the fork was moved onto the front. The fork was eventually replaced by a Murray which we still have today.That’s an interesting stone rake, do the tunes work on a ram and flick he stones up onto the grid?