Method and device for producing continuous spirals with closed polygon forms from wire, concrete steel or metal tube
The method entails using a rotatable device, on which the bending bars (6) are suitably arranged (one for each corner of the winding of the spiral being produced). A bar (7) of suitable length and cross-section is used and an ejection device pushes away the already produced windings of the spiral (1...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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