Textiles: weaving – Special-type looms – Open-back shed
Patent
1980-04-07
1982-02-23
Jaudon, Henry
Textiles: weaving
Special-type looms
Open-back shed
D03D 3700
Patent
active
043164889
ABSTRACT:
A circular loom is disclosed for tubular fabric consisting essentially of strips of synthetic, artificial and natural substances, said loom being of the vertical heald type with healds arranged on concentric rings, with the drawing and the winding up of the fabric being formed on a fabric gauging cylinder arranged downstream of the shuttles, characterized in that said loom comprises one single rotary positive cam with a double track for the control of the alternate motion of the healds, said cam consisting essentially of a hollow cylinder turning coaxially inside the fabric-gauging cylinder and on whose outside cylindrical surface there are provided two closed track guide cams having a substantially helicoidal development, of which one is the cam controlling the motion of the external healds, while the other controls the internal healds, those guiding cams being associated with guide-pads or cam followers which are integral with saddles carrying the healds mounted slidably in fixed vertical guides, thereby imparting to the two series of healds their alternate up-and-down motion, said healds being, moreover, axially constrained by elastic or resilient means to the corresponding supporting saddles so that they may be all blocked automatically in their lower position by the hooking in of their lower ends on corresponding oscillating hooks mounted displaceably in a coaxial alignment with the healds themselves, so as to retain all the warp strips on a level below the plane of sliding of the shuttles.
REFERENCES:
patent: 1589189 (1926-06-01), Lommis
patent: 2715915 (1955-08-01), Carty et al.
patent: 2808071 (1957-10-01), Carty et al.
patent: 2811986 (1957-11-01), Jacob et al.
patent: 4031927 (1977-06-01), Komarov et al.
Baldi Giuliano
Barracchia Pasquale
Cacciapuoti Beniamino
Furia Edoardo
Manini Benito
Jaudon Henry
Moplefan S.p.A.
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