There sledges with sharp stone or iron teeth on their underside were pulled over the grain by animals to break the stalks into pieces and loosen the kernels from the chaff.
Tur pāri izklātajai labībai lopi vilka kuļamās ragavas, kurām apakšā bija asi akmens vai dzelzs zobi, kas salauzīja stiebrus un atdalīja graudus no sēklapvalkiem.