Metal working – Bias cutting of tubular stock – With means to rotate and store stock supply
Patent
1988-03-15
1990-03-13
Goldberg, Howard N.
Metal working
Bias cutting of tubular stock
With means to rotate and store stock supply
29 218, 29 219, 29 225, B21D 4300
Patent
active
049073230
ABSTRACT:
A method and apparatus is provided for producing a woven biased fabric in which the structural fibers are skewed from the fabric centerline. The method and apparatus are particularly designed for producing a woven biased structural fabric in which the structural fibers are oriented about 45.degree. to the fabric centerline, where the flimsy, open-knit nature of the fabric makes handling extremely difficult. Broadly speaking, the apparatus includes a fabric feeding station, slitting station, and winding station. The feeding station holds a roll of conventional structural fabric (parallel and perpendicular structural fibers) woven in a tube configuration and flattened into the roll form. The feeding station rotates the roll in a vertical plane as the fabric unwinds in a horizontal direction. The slitting station includes a cutter and a pair of slatter rolls, the rolls moving the tube of fabric in the horizontal direction while rotating the tube of fabric. The cutter makes a slit in the underside of the moving fabric tube at about a 45.degree. helix angle (or other desired angle). The slit fabric comes off the slatter rolls as a strip of extremely flimsy material with the structural fibers oriented about 45.degree. to the strip centerline. The flimsy strip of fabric is carried in a second direction (about 45.degree.) to the winding station by a moving sheet of plastic. The winding station rolls up both the supporting sheet and biased fabric.
REFERENCES:
patent: 1659453 (1928-02-01), Berry
patent: 1753645 (1930-04-01), Camfield
patent: 1896596 (1933-02-01), Seddon
patent: 2352937 (1944-07-01), Case
patent: 2772734 (1956-12-01), Judelson
Judelshon Jet 220 System Brochure.
Hicks Jim R.
McDonald Curtis L.
Smith Donald L.
Cuda Irene
Goldberg Howard N.
Hexcel Corporation
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