| 摘要 |
PCT No. PCT/FR97/01450 Sec. 371 Date Mar. 18, 1999 Sec. 102(e) Date Mar. 18, 1999 PCT Filed Aug. 5, 1997 PCT Pub. No. WO98/06114 PCT Pub. Date Feb. 12, 1998A process for producing a coil of wire formed at least partially of substantially frustoconical plies of wires laid against one another in a continuous fashion. Wire is first wound onto a core in a first direction over a first length L which is less than the length of the core. Winding continues in the opposite direction over a second length L-d1 which is less than length L by an amount d1, and winding then continues in the first direction over a third length (L-d1)+d2 which is greater than said second length L-d1 by an amount d2. Winding then continues in the same manner until the desired number of plies is obtained.
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