jump spark

It has a float-feed carburetor, mechanical oiler, and the ignition system is the jump-spark—the best for this style of motor.

That motor sailors got one of those fast-turning jump-spark engines.

One of the burners used and known as the Smith jump spark burner is shown in Fig. 33.

Fig. 34 shows the manner in which the jump spark is applied to a Welsbach burner.

His speech and his movements fairly crackle with energy; his enthusiasm is as communicable as a jump spark.