Apparatus for cutting paper sheets or the like

Details Apparatus for cutting paper sheets or the like Apparatus for cutting paper sheets or the like

1979-05-11

1981-03-24

Meister, J. M.

Cutting

Rotatable disc tool pair or tool and carrier

Means to separate elements of tool pair

83497, 83505, B23D 1904, B26D 124

Patent

active

042572983

ABSTRACT:
Apparatus for cutting paper sheets wherein a first knife, which is freely rotatable on a shaft, is movable sideways toward and away from a driven counterknife. The shaft is reciprocable in a carrier which is connected with one end of a reciprocable and turnable piston rod. The piston rod extends into a cylinder and is reciprocable by a spring and a membrane-like piston. The orientation of the first knife with respect to the counterknife can be changed by turning the piston rod with reference to the cylinder so that the piston rod can assume and is held in any one of several angular positions. To this end, the piston rod is rigidly connected with a radially extending projection which is disposed between two rollers mounted in the cylinder for movement at right angles to their axes. One of the rollers is biased against one side of the projection by a helical spring, and the other roller is movable at right angles to its axis by an adjusting screw which meshes with the cylinder.

REFERENCES:
patent: 148203 (1874-03-01), Gardiner
patent: 2180604 (1939-11-01), Morris
patent: 3186281 (1965-06-01), Wingen
patent: 3762259 (1973-10-01), Kuts

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