A plow (152) is inserted between first major and minor flaps (14, 17) as a case (12) is slid on parallel slide bars (110, 112). Thereafter, the case (12) is unfolded by moving a securement device (120) in a linear direction perpendicular to the fold lines between the major and minor flaps (14, 17), with the case (12) located between parallel locators (130, 132). Pushers (154, 156) push the major flaps (14) and the second minor flap (16) outwardly. The major flaps (14) slide in channels (26) in a queuing guide (22) and an aligned transport guide (48). The transport guide (48) is moved forward to receive a funnel (80) and rearward to a hand-off, horizontal position. The minor flaps (16, 17) are controlled by sliding on an end slide (32) and by being sandwiched by a deflector (68) and between pivotal clamping plates (62).