Winding support for use in manufacturing saddle-type coils

Details Winding support for use in manufacturing saddle-type coils Winding support for use in manufacturing saddle-type coils

1983-06-10

1988-08-16

Petrakes, John

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 707, 29605, 140 921, B21F 300

Patent

active

047638486

ABSTRACT:
By providing steps on the inner form of the winding support used for the winding of saddle-type coils, the turns of the saddle-type coil are exactly fixed in their positions. In this way the tolerances of the magnetic field produced with the aid of such coils become small, with this improving the suitability of the coils for use with self-convergent deflection systems. The manufacture of the saddle-type coils with the aid of the winding support according to the present invention is more inexpensive than the manufacture of saddle-type coils wound onto grooved coilformers, and more exact than if stepless inner forms were to be used.

REFERENCES:
patent: 733633 (1903-07-01), Drees
patent: 2496913 (1950-02-01), Grundmann
patent: 3512233 (1970-05-01), Mancini
patent: 3855694 (1974-12-01), Van Der Heijde
patent: 3912182 (1975-10-01), Ishikawa
patent: 3968566 (1976-07-01), Schubert
patent: 4093132 (1978-06-01), Christiana et al.

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