A container assembly for storing material for delivery to or from a
printing machine, the assembly including a container having a chamber for
storing the material and a first mouth member, the container releasably
co-operable with a conduit device having a second mouth member projecting
therefrom and a screw-on mating mechanism positioned on the second mouth
member, the container including a plurality of bump-like projections
adapted to lift the mating mechanism so as to easily permit the container
to be inserted into or removed from the machine and easily permit the
first mouth member to be in contiguous relation to second mouth member,
whereby the screw-on mating mechanism is adapted to screw onto the first
mouth member and secure the container to the device permitting the
material to flow between the container and the device.