| 摘要 |
1,268,645. Ignition coils. JOSEPH LUCAS (INDUSTRIES) Ltd. 30 Sept., 1969 [14 Oct., 1968], No. 48520/68. Heading HIT. An ignition coil is made by (i) positioning a first conductor 12 (e.g. a length of conductive strip) on the inner surface of a hollow insulating former 11; (ii) positioning a second conductor 13 (e.g. a length of copper braid) on the outer surface of the former; (iii) securing the conductors 12, 13 to the former 11, and interconnecting them, by a conductive fastening device 14 (e.g. a U-shaped wire staple); (iv) inserting a core (not shown) into the former in such a way that the core and first conductor 12 are connected ; (v) connecting one end of a wire (not shown) to the second conductor 13, so that the wire and the core are interconnected; and (vi) winding the wire on to the former to constitute a winding (e.g. the secondary winding) of the ignition coil. A further (primary) winding is then wound on top of this secondary, paper insulation and insulating varnish being used. The staple 14 is positioned such that the portion between its arms is parallel to the axis of the former, and is affixed by a tool shaped such that its "anvil" can be inserted into the former. |
