A conveyor system for a baking oven is disclosed which has a continuous product support conveyor (12) arranged in 2 two towers (15a and 15b). A loading station L and an unloading station U are provided adjacent the bottom of the towers (15b and 15a) respectively. The loading station L comprises a first continuous conveyor (70) which is narrower than the support conveyor (12) and extends from the loading station L onto the conveyor (12) and to the unloading station U. The loading station L also has a second continuous conveyor (72) which is spaced from the conveyor (70) and which extends to a position below the lower spiral of the tower (15b). A third continuous conveyor (74) is arranged at the unloading station U from the conveyor (70). Product supported on the conveyor system is transferred from the loading station L onto the continuous conveyor (12) whilst always being supported by the conveyor (70) and is transferred from the continuous conveyor (12) at the unloading station U whilst always supported by the conveyor (70). Transfer of products from the loading station L onto the conveyor (12) and from the conveyor (12) to the unloading station U is therefore smoothly undertaken. A lid arm (84) supports a lid (90) which can be selectively moved into and out of engagement with products supported on the conveyor (12) to selectively close or open the products. The baking chamber (150) in which the towers (15a and 15b) are located can be partitioned by a partition wall (180) to divide the chamber (150) into compartments.
