Process for the manufacture of a disintegrating roll of an...

Details Process for the manufacture of a disintegrating roll of an... Process for the manufacture of a disintegrating roll of an...

2005-12-27

2005-12-27

Calvert, John J. (Department: 3765)

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

C057S112000, C019S114000

Reexamination Certificate

active

06978594

ABSTRACT:
A sawtooth wire to be laid in a groove of a shredding-element-carrier of a disintegrating roll of an open-end spinning apparatus is brought into a shape, which essentially represents that shape, which the sawtooth wire is to assume on the shredding-element carrier. The sawtooth wire is preshaped on a dummy body, the circumference of which predominately conforms to that of the shredding-element carrier, or the sawtooth wire is directly preshaped on the shredding-element carrier of the disintegrating roll. The preshaped sawtooth wire is subsequently hardened, preferably inductively with the aid of a high frequency alternating current with a frequency of more than 1000 kHz. In this manner, a disintegrating roll is made, the abrasion resistant shredding element of which, after the preshaping, i.e., after is securement on the shredding-element carrier, is a hardened shredding element.

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German Search Report Jun. 25, 2001.
European Patent Office Search Report Mar. 12, 2003.

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