A machine, especially for filling vessels in which a rotary table has circumferentially distributed vessel supports thereon. Mounted on the table for vertical movement thereon is a machine part having valve controlled filling devices to engage the vessels. A further machine part having valve actuating means is supported above the first mentioned machine part, and is also vertically moveable. Screw drives are connected to the machine parts and have drive motors with one of the motors manually controlled and with the other of the motors being controlled in response to relative movement of the machine parts so that the machine parts maintain a certain relationship relative to each other.