Shearing apparatus

Details Shearing apparatus Shearing apparatus

1992-03-25

1992-11-24

Watts, Douglas D.

Textiles: cloth finishing

Cutting

Shearing

28163, 83869, 83 761, 83342, 83349, D06C 2302

Patent

active

051651513

ABSTRACT:
This invention provides a shearing apparatus for shearing, between a spiral cutter and a lower blade, tip ends of numerous piles formed on a foundation of a pile fabic. The shearing apparatus has a construction for producing fine design patterns, and comprises a plurality of elements each including a thin main body vertically movably mounted in a slit defined in an element block, and a thick head formed integral with the thin main body for pressing the foundation toward the spiral cutter. The thick heads of the elements are arranged close to one another without gaps in between over an entire axial length of the spiral cutter. Each of the elements further includes a leg formed integral with a lower portion of the thin main body to be offset from legs of adjacent elements. A cylinder mounting block disposed below the element block has piston rods of air cylinders arranged in positions opposed to the respective legs.

REFERENCES:
patent: 3769666 (1973-11-01), Kaufman
patent: 3785016 (1974-01-01), Hergert
patent: 3969797 (1976-07-01), Riedel et al.
patent: 4484505 (1984-11-01), Lewallyn
patent: 4793033 (1988-12-01), Schneider et al.

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