Papermaking machine

Claim 1

A MACHINE FOR COMPRESSING STACKS OF FOLDED THIN SHEET MATERIAL COMPRISING A PLURALITY OF ROTATABLE DRUMS WHICH HAVE PARALLEL SPACED AXES OF ROTATION, SAID DRUMS BEING ARRANGED IN AN UPPER SERIES AND IN A LOWER SERIES WITH EACH DRUM IN THE UPPER SERIES HAVING A RELATIVELY THIN NIP WITH A DRUM IN THE LOWER SERIES, SAID NIPS DECREASING IN THICKNESS FROM A FIRST PAIR OF SAID UPPER AND LOWER DRUMS IN SAID SERIES AT AN INTAKE END OF THE MACHINE TO THE LAST PAIR OF SAID UPPER AND LOWER DRUMS IN SAID SERIES AT A DISCHARGE END OF THE MACHINE, A FLEXIBLE BELT OF THE SHEET STEEL DISPOSED ABOUT THE SERIES OF UPPER DRUMS AND A FLEXIBLE BELT OF SHEET STEEL DISPOSED ABOUT THE SERIES OF LOWER DRUMS FOR CARRYING SAID STACKS THROUGH SAID NIPS, MEANS FOR ROTATING SAID DRUMS SO AS TO MOVE SAID BELTS INA DIRECTION FROM THE THICKEST NIP TO THE THINNEST NIP FOR PROGRSSIVELY COMPRESSING THE STACKS DISPOSED BETWEEN SAID BELTS, AN AUXILIARY FLEXIBLE BELT OF SHEET STEEL OF ABOUT .005 INCH THICKNESS WHICH EXTENDS ABOUT SAID FIRST NAMED UPPER BELT AND WHICH IS NARROWER THAN SAID FIRST NAMED UPPER BELT SAID UPPER SERIES FOR HOLDING SAID AUXILIARY BELT OUT OF SAID UPPER SERIES FOR HOLDING SAID AUXILIARY BELT OUT OF CONTACT WITH SAID UPPER BELT ADJACENT SAID LAST DRUM AND FOR PROVIDING A RELATIVELY SMALL ANGLE BETWEEN SAID NARROW BELT AND SAID LOWER BELT AT THE DISCHARGE END OF THE MACHINE FOR HOLDING THE UPPER SHEET OF EACH STACK OF THIN MATERIAL FROM ADHERING TO SAID FIRST NAMED UPPER BELT.