Change gear mechanism

Claim 1

A PLURAL DENOMINATION, POSITIVE CHANGE GEAR UNIT IN COMBINATION WITH A WEB CUTTING MECHANISM, COMPRISING (A) FIRST, SECOND, AND THIRD DENOMINATIONAL INPUT SHAFTS EQUALLY SPACED APART IN THE SAME VERTICAL PLANE, (B) GEARS FIXED ON SAID INPUT SHAFTS DRIVINGLY CONNECTING EACH OF SAID SHAFTS TO AT LEAST ONE OF THE OTHERS SO THAT ONE OF SAID INPUT SHAFTS MAY SERVE AS THE COMMON DRIVER FOR ALL OF SAID SHAFTS, (C) FIRST, SECOND, AND THIRD COUPLING SHAFTS EQUALLY SPACED APART IN THE SAME VERTICAL PLANE WHICH IS PARALLEL TO THE VERTICAL PLANE OF THE DENOMINATIONAL INPUT SHAFTS, EACH OF SAID COUPLING SHAFTS LYING IN A HORIZONTAL PLANE COMMON TO ONE OF THE DENOMINATIONAL INPUT SHAFTS AND OPERATIVELY ASSOCIATED THEREWITH, (D) AN OUTPUT ASSEMBLY INCLUDING A PAIR OF DIFFERENTIAL GEAR UNITS EACH HAVING A PAIR OF INPUTS, A PAIR OF SPIDER GEARS, AND A SPIDER, A FIRST INPUT OF ONE OF SAID PAIR OF DIFFERENTIALS BEING DIRECTLY CONNECTED TO AN INPUT OF THE OTHER OF SAID PAIR OF DIFFERENTIALS, SAID OUTPUT ASSEMBLY FURTHER INCLUDING AN INPUT SHAFT ATTACHED TO THE SPIDER OF SAID ONE DIFFERENTIAL AND AN ULTIMATE OUTPUT SHAFT ATTACHED TO THE SPIDER OF SAID OTHER DIFFERENTIAL, SAID INPUT AND OUTPUT SHAFTS FOR SAID DIFFERENTIALS IN AXIAL ALIGNMENT IN THE HORIZONTAL PLANE OF THE SECOND DENOMINATIONAL INPUT SHAFT AND THE SECOND COUPLING SHAFT AND PARALLEL TO THE SECOND DENOMINATIONAL INPUT SHAFT, (E) POSITIVELY GRIPPING WEB FEED ROLLS FOR FEEDING WEB MATERIAL TO A WEB CUTTER, (F) MEANS DRIVINGLY CONNECTING THE FEED ROLLS WITH THE ULTIMATE OUTPUT SHAFT FOR POSITIVE OPERATION WITH THE ULTIMATE OUTPUT SHAFT,