Glue transfer apparatus for cigarette filters

In a method of forming a multi-sectional filter, the steps of

• moving a stream of plug wrap paper through a predetermined path;
• placing increments of glue on one side of the stream of plug wrap paper at predetermined spacings from each other;
• moving a sequence of filter sections onto the stream of plug wrap paper with alternate filter sections being disposed on the increments of glue;
• thereafter wrapping the stream of plug wrap paper about the filter sections to form an endless rod;
• severing the rod into filter plugs of predetermined length, each filter plug having two outer filter sections and one intermediate filter section within a strip of plug wrap paper and with the intermediate filter section glued to the strip of plug wrap paper by means of said increment of glue and said two outer filter sections being free of said glue;
• joining each filter plug to a tobacco column at each end;
• and
• then severing each filter plug in half through the intermediate filter section to form two filter cigarettes each having a glued filter section at an exposed end of the cigarette and an unglued filter section at the tobacco column end.

A method of forming a multi-sectional particulate-containing filter, said method comprising the steps of

• moving a stream of plug wrap paper through a predetermined path;
• placing increments of glue on one side of the stream of plug wrap paper at predetermined spacings from each other;
• moving a sequence of spaced apart filter sections onto the moving stream of plug wrap paper with alternate filter sections being disposed on the increments of glue;
• subsequently depositing charges of particulate filter material onto the moving stream of plug wrap paper between adjacent filter sections;
• thereafter wrapping the moving stream of plug wrap paper about the filter sections and charges of particulate filter material to form an endless rod;
• severing the endless rod into filter plugs of predetermined length, each filter plug having two outer filter sections and one intermediate filter section and two charges of particulate filter material within a strip of plug wrap paper, said intermediate filter section being glued to the strip at plug wrap paper by means of said increment of glue and sand two outer filter sections being free of said glue;
• and
• thereafter moving said two outer filter sections of each filter plug inwardly towards the intermediate filter section to compact the charges of particulate filter material therebetween.