Full rotation type paper web cutting device

A device for cutting a moving web of paper which comprises:

• a shank having rotary shafts at both ends, a rotary blade affixed to said shank with its edge formed inclined circumferentially relative to the common axis of said shafts, a guide ring located adjacent to the cutting starting end of said blade and having a radius of rotation equal to that of said edge, a second guide member located adjacent to the cutting terminating end of said blade and having a volute configuration with its radius of rotation gradually decreased from the initial value equal to the radius of rotation of said edge, a stationary cutter having a straight edge and supported in place by pivot pins at both ends, said cutter being disposed in such a manner that, at the cutting terminating end, it is inclined to interfere with said rotary blade radially relative to the common axis of said shafts of said rotary blade, and a spring for forcing said edge of said stationary cutter to bear against said rotary blade.