Filling machines for filling glass containers and cans are already well known
. One customary construction includes an assembly consisting of a central container for holding the substance to be filled surrounded by cylinders disposed in a circle around the exterior of the container, the axes of the cylinders being vertical, each cylinder containing a piston which is in connection with an endless track member presenting upper and lower tracks surrounding the central container, each cylinder having a valve means at the bottom of the cylinder, and means being provided for rotating the assembly consisting of the central container and the cylinders about the axis of the central container while the track is held stationary, a turntable arranged to be fed with the containers to be filled being located below the cylinders and being rotatable with the said assembly. In operation of filling machines as the container with the cylinders rotates the inclined track causes the pistons to reciprocate in the cylinders while the valve means associated with each cylinder also operates to permit each cylinder to receive material to be filled from the central container as the associated piston is rising in the cylinder and to expel the material from the cylinder into a container located directly below as the piston moves outwards.