Abstract: A vane actuator for use in a turbine engine, comprising a carrier member carrying a plurality of vanes which is angularly movable, in use, so as to vary the position of the vanes relative to an airflow through the engine. The actuator includes an electrical drive arrangement comprising an input shaft which is arranged to drive an output shaft coupled to the carrier member. The electrical drive arrangement includes a brake arrangement arranged to apply a braking load to the input shaft in the event that an interruption occurs in the electrical drive arrangement.

Abstract: The invention provides an adhesive made from a liquid catalyst cross-linked with an amino resin. The liquid catalyst has improved flexibility and adhesive properties, which are imparted on the adhesive. It is comprised of a cross-linkable polyvinyl acetate, an acid, and an ammonium salt.

Abstract: The invention provides a liquid catalyst capable of cross-linking amino resins. The liquid catalyst has improved flexibility and adhesive properties. It is comprised of a cross-linkable polyvinyl acetate, an acid, and an ammonium salt.

Abstract: A vane actuator for use in a turbine engine, comprising a carrier member carrying a plurality of vanes which is angularly movable, in use, so as to vary the position of the vanes relative to an airflow through the engine. The actuator includes an electrical drive arrangement comprising an input shaft which is arranged to drive an output shaft coupled to the carrier member. The electrical drive arrangement includes a brake arrangement arranged to apply a braking load to the input shaft in the event that an interruption occurs in the electrical drive arrangement.

Abstract: The invention provides a liquid catalyst capable of cross-linking amino resins. The liquid catalyst has improved flexibility and adhesive properties. It is comprised of a cross-linkable polyvinyl acetate, an acid, and an ammonium salt.

Abstract: An information processing system comprises a plurality of information processing devices; and a fault-tolerant power distribution system comprising a plurality N+1, wherein N is greater than 1, removable power supplies for providing power to the system, N power supplies being sufficient to provide power to the plurality of devices; and a plurality M removable power distribution units for connecting the power supplies to the devices, the connection of the power supplies with the power distribution units being configured such that on removal of either of the units, the remaining unit is still connected to N of the power supplies to thereby maintain power to the system.

Abstract: A cooling system provides redundant fault-tolerant cooling to electrical devices in an electrical apparatus and comprises a plurality N+1 individual cooling fans, N cooling fans being required to provide cooling of the devices and further comprises monitor logic for monitoring the status of the plurality of cooling fans and for issuing a non-critical warning to the apparatus in the event of failure of one of the cooling fans, the logic being further operable, in the event of a failure in the logic, to issue a non-critical warning to the apparatus.