Counter-rotating knife paper tail ripper
AssigneeFibron Machine Corporation
InventorStanley H. Mah
Life of this patent
Estimating the term…
Abstract
A paper tail ripper having a pair of rotatably mounted knives, air motors which counter-rotate the knives and a deflector which deflects the paper tail toward the knives. The knives traverse closely spaced overlapping circles as they counter-rotate. The deflector sweeps the paper tail onto a transfer mechanism, which transfers the paper tail away from the ripper, so that the tail may be threaded through a calender stack, etc. The ripper is pivotally mounted on the transfer mechanism for movement between storage and operating positions.
Claims20
A paper tail ripper for transversely severing a moving paper tail, said ripper comprising:
- (a) a first knife having a first center of rotation;
- (b) a second knife having a second center of rotation;
- (c) drive means for counter-rotating said knives about said respective centers of rotation, while maintaining an axis intersecting said centers of rotation generally parallel to said moving paper tail;
- and,
- (d) deflector means for deflecting said paper tail toward said knives.
A paper tail ripper for transversely severing a moving paper tail, said ripper comprising:
- (a) a first knife having a first center of rotation;
- (b) a second knife having a second center of rotation;
- (c) drive means for counter-rotating said knives about said respective centers of rotation, while maintaining an axis intersecting said centers of rotation generally parallel to said moving paper tail;
- in combination with:
- (i) transfer means for transferring said paper tail away from said paper tail ripper;
- and,
- (ii) deflector means for deflecting said paper tail toward said knives and said transfer means.
Dependencies are inferred from the claim text.