Device for folding sheets or foils of paper or the like

Claim 1

IN A DEVICE FOR FOLDING SHEETS OF PAPER AND THE LIKE, COMPRISING A HOUSING HAVING A TABLE ADJACENT ITS UPPER END, SAID HOUSING BEING PROVIDED WITH AN ENTRANCE SLOT FOR FEEDING PAPER SHEETS TO SAID HOUSING FROM SAID TABLE, STOP ELEMENTS FOR ENGAGING THE EDGE OF SAID SHEETS TO LIMIT THE ENTRANCE THEREOF INTO SAID HOUSING, A SERIES OF FOLDING BARS SUPPORTED IN SAID HOUSING ABOVE SAID ENTRANCE SLOT AND ARRANGED IN SPACED APART RELATION, A SERIES OF FOLDING BARS MOVABLE MOUNTED IN SAID CASING BENEATH SAID ENTRANCE SLOT, ONE OF SAID MOVABLE FOLDING BARS BEING ADAPTED TO GRIP THE EDGE OF ONE OF SAID SHEETS ADJACENT THE EDGE ENGAGED BY SAID STOP ELEMENTS AND THE OTHE OR SAID MOVABLE FOLDING BARS BEING ARRANGED TO BE RECEIVED BETWEEN THE FOLDING BARS SUPPORTED ABOVE SAID ENTRANCE SLOT IN DIGITATING RELATION THEREWITH, A CAM SHAFT MOUNTED IN SAID HOUSING, A MOTOR FOR DRIVING SAID CAM SHAFT, A SERIES OF CAMS ON SAID CAM SHAFT, FULCRUM LEVERS PIVOTED WITHIN THE HOUSING HAVING ONE END CONNECTED WITH A CORRESPONDING MOVABLE FOLDING BAR AND THE OPPOSITE END PROVIDED WITH A CAM ENGAGING ROLLER, AT LEAST ONE OF SAID FULCRUM LEVERS BEING PROVIDED WITH A SERIES OF OPENINGS FOR SELECTIVELY RECEIVING A FULCRUM PIN TO CHANGE THE THROW OF THE LEVER AND VARY THE DISTANCE THAT SAID AT LEAST ONE FOLDING LEVER PROJECTS BETWEEN A PAIR OF ADJACENT FOLDING LEVERS ABOVE SAID ENTRANCE SLOT TO THEREBY VARY THE SPACING OF THE DISTANCE BETWEEN CERTAIN FOLD LINES IN THE PAPER SHEET.