Container rotating means in apparatus for curing inks and decorative coatings

An improved peg structure for use in container rotating apparatus of the kind having a moving conveyor chain carrying a plurality of pegs, each having a center pin mounted at an inner end as a chain pin on the conveyor and having a sleeve rotatably carried by the pin for being received in and carrying a cylindrical container of substantially larger diameter than the sleeve, and having frictional sleeve rotating means associated with the container rotating apparatus, wherein the improvement comprises:

• (a) a hub roller rotatably mounted on said pin, terminating axially outwardly near the outer end of the pin, and having an exterior groove near the outer end thereof transverse to the hub roller axis;
• (b) wherein said sleeve is engaged over a portion of the hub roller including said hub roller groove, which portion is relatively short relative to the length of the sleeve for supporting the sleeve;
• (c) said sleeve having a frangible annular score line located axially outwardly from the outward end of the hub roller for allowing the sleeve to break in response to unusual bending stress without damaging the hub roller, and having an inner sleeve groove adapted to overlie said hub roller groove;
• and
• (d) a resilient member mutually engaged in said hub roller groove and said inner sleeve groove for preventing unauthorized relative axial motion between the hub roller and sleeve.