Adjustable glue applicator rolls for container labeling machine

Claim 1

In a glue pot assembly for a container labeling machine of the type wherein upright containers having recessed and non-recessed labeling areas of substantially different diameters are moved in succession past a gluing station, a glue pot fixedly disposed at the gluing station, glue applicator and fountain rolls on the glue pot and having spaced parallel upright axes, separate yokes rotatably supporting the glue applicator and fountain rolls for independent adjustment horizontally relative to each other and relative to the labeling areas of the containers, spaced parallel upright axis drive shafts on the glue pot also forming pivot elements for the yokes, separate and independent drive gearing for the glue applicator and fountain rolls including two driving gears on said drive shafts coaxial with the yoke pivot axes, the drive shafts having their parallel upright axes spaced from the rotational axes of the glue applicator and fountain rolls on said yokes, and independently operable adjusting screw shafts for the yokes on the glue pot across the pivot axes of the yokes and having swiveled connections with the yokes and with the glue pot, whereby the glue applicator and fountain rolls can be swung with the yokes independently on the pivot axes of the yokes while being continuously driven in rotation through usbstantial arcs of movement sufficient to maintain engagement of the glue applicator roll with either the recessed or non-recessed labeling areas of containers.