Shredding machine and method of operation

Details Shredding machine and method of operation Shredding machine and method of operation

1984-12-19

1986-10-28

Goldberg, Howard N.

Solid material comminution or disintegration

Processes

Miscellaneous

83 76, 241 36, 241236, B02C 1840

Patent

active

046194070

ABSTRACT:
The invention relates to a method for operating a shredding machine with high power for the comminution of multilayered paper, data carriers and the like with at least one drive motor and a stator winding, which upon overloading of the shredding machine automatically is switched to reverse. The operation of the machine is possible without fear of overloading the machine and the user has no need to nor temptation to grip with one's hand paper jammed into the shredding machine. The object of the invention is achieved by providing a second stator winding, which upon overloading of the shredding machine is initially connected in parallel to the one stator winding. Therefor, in case of overloading no switching into reverse occurs, but for a limited time of, for example, 10 seconds a second stator winding is connected in parallel to the first stator winding.

REFERENCES:
patent: 3880361 (1975-04-01), Schwarz
patent: 4026480 (1977-05-01), Meyers

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