Abstract: A drive mechanism for a pivoted member (1), such as a beam of a traffic barrier, comprises a rotary element (6) coupled to the pivoted member (1). A friction roller (7) for driving the rotary element (6) is supported on a mounting (8) that is pivoted on an axis (9) and biased about the axis (9) to hold the friction roller (7) in pressure contact with the rotary element (6). When the friction roller (7) is driven to rotate the element (6) to raise the pivoted member (1), the frictional force between the roller (7) and the driven element (6) is increased, whereas the frictional driving force is reduced when the roller (7) is rotated in the reverse direction.

Abstract: There is described a cleaning apparatus, suitable for cleaning components for pharmaceutical containers, such as for example pharmaceutical closures, which comprises a plurality of processing chambers interconnectible by valve means capable of providing a bacteriological barrier between the first and last chambers. Typically, the apparatus may be arranged to wash, dry and sterilize the container components.