Abstract: A valve assembly for a brass instrument is disclosed. The assembly has a valve block with substantially cylindrical apertures for receiving pistons therein. Each piston is cylindrical and is machined from a block of metal and has three ports formed through the cylindrical block. The curved surface has a first surface portion for engaging an internal surface of the valve block and has second surface portions radially inward of the first surface portions. The first surface portions extend around ports and the second surface portions are located between the ports and the ends of the pistons.

Abstract: A container (1) for the storage and transport of waste electrical and/or electronic equipment has at least one tray (17) provided with an array (24) of upwardly projecting resilient locating portions. The tray receives relatively small waste equipment such as electric lamps, mobile telephones or the like in a number of different orientations in which the items will occupy spaces between the locating portions and will be gripped by the locating portions.