the invention relates to a device for clamping a container to a filler valve , in particular , the type of valve used in automatic bottling machinery for continuous liquid - batching processes . the device is embodied , substantially , as a frame associated with and slidable relative to the body of such a valve , which clamps the bottle to the valve , raises it up to the level of a filler tube , and lowers it . the frame &# 39 ; s sliding motion is produced by a roller integral with the frame itself , which engages a stationary cam - type guide rail during rotation of the machine .