A container-filling machine having a continuously rotating member with an orbiting drive cam thereon which causes reciprocatory piston movement of the piston filler. An adjustment shaft carried by and radially of the rotating member adjusts the radius of the drive cam orbit, and the length of the piston...http://www.google.de/patents/US4065032?utm_source=gb-gplus-sharePatent US4065032 - Container-filling machine with fill adjustment during operation
