British Nuclear Fuels Plc

Alan Bailey

David R Lauder

David K Yew

Frederick Miley

The invention concerns a filter system having a plurality of individual removable filter units disposed between inlet and outlet ducts for a gas flow path to filter the gas flow. The system comprises one or more filter ports between the inlet duct (3,5) and the outlet duct (4,6) to receive removable filter units (1), a transfer port (25) co-operable with and sealable by a flask (20) for the filter units, a seal plate (14) removably located in the transfer port, means (15) for removing the seal plate, a carriage (18) movable between the transfer port and the filter port or ports, means (15) for placing filter units on or removing filter units from the carriage adjacent to the transfer port and means (8) for placing filter units on or removing filter units from the carriage adjacent to the filter port or ports. The system may be used to filter from a gas flow harmful or potentially harmful substances, e.g. particles which are radioactive, toxic or biologically active.

Filter systems

Apparatus for transporting objects in succession through a measuring head. A common drive shaft provides synchronised movement of transfer apparatus, gripper apparatus and indexing apparatus. The transfer apparatus receives objects from a supply and carries the objects to the measuring head. The gripper apparatus receives the objects from the transfer apparatus and carries the objects through the measuring head. The indexing apparatus receives objects from the gripper means and conveys the objects to an outlet.

Apparatus for transporting objects

First and second chambers, each having a rotor are interconnected by a passage. The first chamber has a contoured periphery to receive articles and the passage is shaped and dimensioned to permit travel therealong only of those articles which are orientated in the first chamber with their longitudinal axes either in the direction of travel or normal to the direction of travel. Articles in other orientations are carried round the first chamber by the rotor for representation at the passage. The rotor in the second chamber permits the passage of those articles which have their longitudinal axes in the direction of travel and topples the articles having their axes normal to the direction of travel into positions in which the axes are in the direction of travel.

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Cheadle, United Kingdom

Alan Bailey