Patent ID: 7887035

Claim:
A fan delivery for a folding apparatus comprising: at least one fan wheel including a plurality of fan-wheel elements forming a plurality of fan wheel pockets, the fan-wheel elements have at least two outermost fan-wheel elements defining an overall width of the fan-wheel elements, the overall width of the fan-wheel elements being variable in the lateral direction; a signature guide member movable relative to the at least one fan wheel, the signature guide member including: a plurality of arms mounted on a rotary shaft, an axial position of at least one of the arms variable in a manner correlated with the variation in the overall width of the fan-wheel elements; at least one arm introducible into a space defined by two adjacent fan-wheel elements so the at least one arm extends axially between the two adjacent fan-wheel elements; and a first state in which the at least one arm is situated radially outside of the fan-wheel elements and a second state in which the at least one arm reduces an effective depth of at least one of the fan wheel pockets and guides at least one signature in the at least one of the fan wheel pockets until the at least one signature is delivered from the at least one of the fan wheel pockets to the conveyor; a conveyor downstream of the at least one fan wheel; and a first mechanism varying the overall width of the fan-wheel elements and a second mechanism varying the axial position of at least one of the arms, the first and second mechanisms being coupled to one another.