Document shredding machines

Details Document shredding machines Document shredding machines

1985-12-18

1988-01-05

Eley, Timothy V.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

2412921, B02C 1822, B02C 1844

Patent

active

047170859

ABSTRACT:
A document shredding machine comprises cutting mechanism comprising two shafts, each mounted for rotation about a respective parallel axis, and cutting discs mounted at spaced intervals on each shaft, the two sets of cuttings discs intermeshing and the shafts being rotated in opposite directions so as to provide a downwardly-accessible nip into which documentary material (such as paper) is fed. Engagement between the circumferential edges of adjacent discs subjects the documentary material to a plurality of longitudinal cuts, and the discs are provided with transverse cutting edges by which the material is subjected to a transverse severing.

REFERENCES:
patent: 4241882 (1980-12-01), Baikoff
patent: 4260115 (1981-04-01), Hatanaka

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