Abstract: A method and apparatus for sorting articles passing an inspection station and subsequently removing selected articles from a transporting track. The position of the articles to be removed is determined by means of a pointer positioned next to an article during its movement along the inspection station, and the position moves along with the transporting track. A signal is generated by the pointer for removing the article from the track. The position of the article is determined by the pointer and at least two fixed points on either side of the inspection station. The pointer and the fixed points are fitted with an ultrasonic transmitter and a receiver, respectively, or the other way round, or with a combined transmitter/receiver.

Abstract: A carrier unit for a transport system of the type having a flexible drive member defining a path and guide to guide the drive member around a curve in the path. The carrier unit comprises first and second engagement members for engaging respective faces of the drive member; the first and second engagement members being maintained at a fixed distance to define a passage therebetween. The second engagement member has a peripheral portion defining at least one projection, while the passage is of predetermined dimensions to permit the carrier to conform to the curve where the said second engagement member forms an arc of the curve and the projection engages with the drive member to secure the carrier thereto. A transport system utilizing the carrier is also disclosed.