. Automotive industries . Parts of Philbrin ignition systems March 17, 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 603. DUPLEX SWITCH Diagram showing principle of operation and in-ternal winding of Philbrin duplex ignition system builds up due to the absorption of the impregnating waxuntil the light goes out entirely. The condenser is thenleft in this bath about 25 min. so as to insure thoroughimpregnation, the current being kept on throughout thewhole period. Previously, it was necessary to dry thepaper carefully before using, but in this process themoisture in the paper is utilized to help impr
. Automotive industries . Parts of Philbrin ignition systems March 17, 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 603. DUPLEX SWITCH Diagram showing principle of operation and in-ternal winding of Philbrin duplex ignition system builds up due to the absorption of the impregnating waxuntil the light goes out entirely. The condenser is thenleft in this bath about 25 min. so as to insure thoroughimpregnation, the current being kept on throughout thewhole period. Previously, it was necessary to dry thepaper carefully before using, but in this process themoisture in the paper is utilized to help impregnate thecondenser. The coil is of the non-vibrating, open core type. Theprimary winding consists of two layers of wire woundaround an iron wire core. This primary is secured in alaminated tube having 1/16 in. thickness of wall andcomposed of layers of Kraft paper and varnishedpaper. The secondary, which is made in two sections, ismounted on the outside of this tube. Two and one-quarter turns of varnished paper are used for the in-sulation between the layers of the secondary coil is embedded in a b
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
