Abstract: A conveyor for a container-handling machine has an endless transport element having a straight upper stretch and a row of equispaced laterally directed coupling formations, a row of substantially identical cell plates each having a coupling element fitting with respective ones of the coupling formations, and respective stationary guide elements extending along the transport element and holding the coupling elements in engagement with the respective coupling formations. The transport element includes a pair of parallel endless chains each provided with the coupling formations. The cell plates are each formed with a pair of coupling elements engageable with the formations of the respective chains.

Abstract: A method of and apparatus for the testing of containers, preferably in a filling closing machine for comestible products in plastic cups or the like. The container is received in a vacuum bell or chamber which is equipped with a suction cup at the end of a suction pipe above the cover so that, when the chamber is evacuated, the cover can bulge to block the suction cup and a pressure differential developed between the suction pipe and the chamber signalling an effective seal. In the case of an ineffective seal, damage to the cover or the like, the pressure difference does not develop and the defective package can be sorted out.