Abstract: Fruit, which may be oblong fruit such as olives, are mechanically sorted into two separate vessels, depending on whether they are, or are not individually thick enough to be clamped between a reciprocating head and a plate, while the head and plate rotate about a drum axis at a downstream end of a carrying run of an endless conveyor for the fruit. The clamped (oversized) fruit are carried further about the periphery of the drum than are the non-clamped (undersized) fruit, allowing these two classes of fruit to be collected separately. In a preferred embodiment, the fruit are individually deposited on the conveyor and subjected to common orientation before passing between the reciprocating head and the plate.