Abstract: An apparatus for rotating elongated members of rectangular cross section, such as board lumber, is disclosed. The apparatus includes a pair of conveyors arranged so that the boards will cascade from the end of one conveyor onto the other conveyor by force of gravity, rotating in the process. A dampening mechanism to reduce the impact caused by the fall is also disclosed. The dampening mechanism allows the members to be delicately balanced on any side. After an inspection, the boards are turned again to position them for final processing. This second rotation is performed by halting the leading edge ofthe boards, at either the top or bottom, and propelling the opposite edge forward with a rubber wheel.

Abstract: A cooled vane suitable for a gas turbine engine is provided with an internal chamber which is fed with cooling air from the radially inner and outer ends of the vane. Cooling air supplied to the radially inner end of the vane is at a higher pressure than that supplied to the radially outer end. In order to ensure effective cooling of the vane a chordwise extending baffle is provided within the chamber to divide the chamber into radially inner and outer portions. The baffle is so configured as to permit a limited flow of cooling air from the radially inner chamber to the radially outer chamber. This facilitates effective cooling of the aerofoil of the vane in the region of the baffle.