Self-propelled vehicles; a practical treatise on the theory, construction, operation, care and management of all forms of automobiles (1906)
Homans, James E. (James Edward), b. 1865 · New York, T. Audel & Company · leaf 306
parts—the shell carrying one electrode, which screws into themetal of the cylinder, and the core composed of mica, through whichruns the other terminal, the two being joined together by screw con-nections as shown. The superior advantages of mica insulation, asclaimed by the manufacturers, are that… … Fig. 212.—Part Sectional View of the Mezger Porcelain Spark Plug. Likethe plug just shown, the shell of the plug is in two parts—one screwinginto the wall of the cylinder, the other into the first. The porcelaininsulating core is held between them by a shoulder. The insulated elec-trode rod is let…
Automobiles
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