Information; elementary electricity, motor car electric systems, the gas engine from an ignition point of view, driving the car (1920)
Phillips, Harvey Elmer, 1874-1948 · Dayton, Ohio, Auto Electric Systems Publishing Company · leaf 302
When the contacts open, current flows through both windings, which causes_the contacts to be held open. They will remain open until current is cut off, whenthe armature will be released and the contacts will go back together again, and willremain so until an excessive amount of cm-rent attempts to… … Figure 55. This shows a storage battery, resistance unit, ammeter, and wiresto be connected to the terminals of a circuit-breaking relay. To make the resistanceunit, secure about 30 feet of No. 16 soft iron wire. Wind it in the form of a spiralspring, and then stretch the spring until, when…
Automobiles
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