Re: Pull out cigar lighter (1928)

Posted by John Wogec On 2022/8/23 11:39:28

The "pull type" cigar lighters have a spring steel coil inside which retracts the cord. As you pull the cord out of the lighter, a screw mechanism at the center of the coil moves a contact plate toward a live contact. When you pull the cord far enough, the points make contact, the circuit is complete and the element heats up. When the cord retracts the contact is broken and the heating element cools down.