Abstract: A box-erecting apparatus has a supply holding a stack of flattened blanks, an erecting station spaced in a transport direction from the supply and provided with a plunger and elements for erecting a flattened blank into an upwardly open box, and a support between the supply and the station positioned to receive a flattened blank. An inner arm between the supply and the station has an inner end pivoted about an inner axis transverse to the direction and an outer end, and an outer arm has an inner end pivoted on the inner-arm outer end about an outer axis generally parallel to the inner axis and an outer end carrying a grab. A drive can pivot the arms independently of each other about the respective axes between a position with the grab engaging one of the blanks in the support and a position depositing one of the blanks on the support.