An installation comprising a first platform having a first holder device comprising a first pair of jaws, and a second platform having a second holder device comprising a second pair of jaws. Each pair of jaws comprising a stationary jaw and a movable jaw mounted on the stationary jaw to be movable between a closed position and an open position. A resilient element connecting the two jaws together urges the movable jaw towards the closed position. The two pairs of jaws are provided with co-operation devices enabling them to transfer a container from one platform to another by co-operation between the pairs of jaws.