Abstract: A corrugator comprising a curved base element (14) rotatable around an axis of rotation; and a flat base element (12) translatable relative to said axis of rotation, said base elements (12, 14) having a plurality of corresponding corrugation formers (24) such that a flexible material (26) may be fed between said base elements (12, 14), the corresponding corrugation formers (24) interdigitating such that said flexible (material 26) is folded at a non-elevated temperature by the co-operation of the corrugation formers (24) so as to create creased corrugations (25) in the flexible material (24).

Abstract: A molded composite structure and a method of manufacturing a molded composite structure are disclosed. In one embodiment, an aircraft wing panel and a method for manufacturing an aircraft wing panel are disclosed. In another embodiment, the method of manufacturing a molded composite structure uses a resin transfer molding process.

Abstract: A corrugating machine comprises a guide path along which a sheet of flexible material can be fed, a pair of rotatable members between which the guide path extends, and a plurality of elongate corrugating formers which can be engaged with and disengaged from the rotatable members. The rotatable members are spaced so that, in use, the elongate corrugating formers, when engaged with the rotatable members, cooperate to form corrugations in the flexible sheet as the flexible sheet passes between the rotatable members.

Abstract: A pneumatic ejector comprises a rigid support member having a base portion and an upstanding boss integral with the base portion, and an elastomeric ejection element having a diaphragm portion and a skirt portion surrounding the diaphragm portion and secured to the boss. The support member has an air inlet passage for supplying air under pressure to move the diaphragm away from the boss. The upper end of the upstanding boss is concave and the diaphragm is of complementary shape. The diaphragm has an integral protrusion upstanding from a central region of the diaphragm. Additionally, the diaphragm has an integral protrusion which depends from a central region of the diaphragm and which extends into a through bore in the upstanding boss, the through bore communicating with the air inlet passage in the support member.