Aviation engines; design--construction--operation and repair; (1919)
Pagé, Victor Wilfred, 1885-1947 · New York, The Norman W. Henley publishing co. · leaf 192
Scl/d Nlcktl ftod … Fig. 72.—Spark-Plug Types Showing Construction and Arrangement of Parts. insulating bushing and electrode are housed in a steelbody, which is provided with a screw thread at the bot-tom, by which means it is screwed into the combustionchamber. When porcelain is used as an insulating material it…
Airplanes
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