Abstract: An infusion package, particularly for coffee, has a container part (12) and a support (14) for the container part. The container part (12) defines two compartments (36, 38) which contains similar amounts of coffee. In one form each end portion of the support (14) has crease lines which facilitate opening of the package for use. Also disclosed is an apparatus and method for making the package.

Abstract: A shroud for a gas turbine engine rotor stage is divided into a number of arcuate segments each of which is a trapezium. The segments are urged together by compression springs which attempts to make the assembly lengthen peripherally, by virtue of the chamfered ends 30 of the segments riding up each other. The completely circular shape of the shroud prevents that movement but as a result, a hoop load is generated which tends to move the segments radially outwards, thus achieving the same effect, along with a consequent increase in diameter. A cam ring and pins are used to control and reverse the movement, as desired. The shroud diameter can thus be altered to suit rotor expansion and contraction.