from The Century Dictionary and Cyclopedia
- n. Same as heatingcoil, 1.
Sorry, no etymologies found.
When the heat-coil pin assumes this new position it cools off, due to the cessation of the current, and _resolders_ itself, and need only be turned end for end by the attendant to be reset.
The sneak current may be large enough to overheat the apparatus if allowed to flow long enough, but before it has flowed long enough it will have warmed the heat-coil winding enough to soften its fusible alloy and to release springs which ground the line, just as did the carbon arrester in the case last assumed.
Instead of using a wire-wound resistance element in heat-coil construction some manufacturers employ a mass of high-resistance material, interposed in the path of the current.
Repeated opening and closing of the cockpit window can cause wires in a heat-coil assembly to fatigue and break, according to the FAA.