Box, carton, envelope or bag making machinery characterised by performing specific operations

BPERFORMING OPERATIONS TRANSPORTING B31Paper goods B31BMAKING BOXES, CARTONS, ENVELOPES OR BAGS OF PAPER OR CARDBOARD

B31B1/00Box, carton, envelope or bag making machinery characterised by performing specific operations

B31B1/02Feeding or positioning sheets, blanks, or webs B31B1/04Feeding sheets or blanks B31B1/06from stacks B31B1/08during envelope or bag-making operations B31B1/10Feeding or positioning webs B31B1/12by air pressure or suction B31B1/14Cutting B31B1/16Cutting webs to form sheets or blanks B31B1/18Slitting webs longitudinally B31B1/20Cutting sheets or blanks B31B1/22Notching Trimming edges of flaps B31B1/24Making window openings B31B1/25Surface scoring B31B1/26Folding sheets, blanks, or webs B31B1/28around mandrels, including bottom-forming operations B31B1/30the mandrels moving B31B1/32in circular paths B31B1/34about their own axes B31B1/36by continuously feeding same to stationary members B31B1/38the members being forming-tubes B31B1/40acting internally B31B1/42acting externally B31B1/44by plungers moving through folding dies B31B1/46and interconnecting side walls during such movement B31B1/48by folding or tucking-in locking flaps B31B1/50by interengaging tongues and slots B31B1/52by reciprocating or oscillating members B31B1/54operating on moving material B31B1/56by rotary members co-operating with blades B31B1/58by moving endless belts B31B1/60Uniting opposed surfaces or edges Taping B31B1/62by adhesives B31B1/64by applying heat or pressure B31B1/66high-frequency electric heating B31B1/68by stitching, stapling, or riveting B31B1/70by corner stapling B31B1/72by applying or securing strips or sheets B31B1/74Auxiliary operations; Parts; Components B31B1/76Opening or distending flattened articles B31B1/78mechanically B31B1/80pneumatically B31B1/82Attaching windows B31B1/84Forming valves or applying valve inserts; Applying rigid valves, spouts, filling tubes B31B1/86Forming integral handles or mounting separate handles B31B1/88Printing or embossing B31B1/90Attaching accessories not otherwise provided for B31B1/92Delivering B31B1/94singly or in succession B31B1/96in overlapping arrangement B31B1/98in stacks or bundles