Abstract: An automation protocol subscription service has a new SUBSCRIBE command with subscription bits that is sent from an automation controller to a master control switcher to indicate to the master control switcher to which items of configuration/status the automation controller is subscribing. In return when one of the subscribed-to items changes, the master control switcher returns a new SUBSCRIPTION command that indicates the change to the automation controller. In this way the knowledge of the configuration/status of the master controller is maintained at the automation controller.

Abstract: This invention relates to a soft-shelled gelatin capsule which contains particles in a liquid vehicle.

Abstract: A hub assembly for a bicycle wheel comprises a tubular body part having two spaced flanges for connection to the spokes of the wheel. A tubular sprocket carrier support extends from one end of the body part, and surrounding the sprocket carrier support is a carrier on which axially spaced toothed sprockets are mounted. The carrier is rotatable in one direction relatively to the hub to provide a free-wheel. The bearing between the carrier and the support is a plain bearing to minimise the diameter of the carrier and support, and thus permit smaller sprocket wheels to be employed. The hub bearing sets are so dimensioned that they may both be inserted from the same end of the body part.