Safety brake terminal for spark plugs of engines with electric ignition, especially those of aviation. (Machine-translation by Google Translate, not legally binding)

摘要

A safety terminal-brake for spark plugs of motors with electrical ignition, consisting of a copper tube or other conductive metal, one end of which has an insulating bushing to contribute to the best union and insulation of the cable in the terminal, while the other end is crushed and serves as a suitable housing to a piece of hard metal that slides or slides inside the latter, which has on each of its two flat faces a spring to permanently attract said metal piece inwards and has two drills , one to allow the travel of the clamping pin of one of the ends of the two springs, in order to make possible the limited sliding of the aforementioned metal piece, and another, in coincidence with the hole made in this piece, for the assembly on the electrode, thanks to which arrangement the electrode is captured by penetrating into its slots or threads the edges of the matching holes that they exist in the said crushed end and in the sliding piece, by virtue of the traction exerted by the springs, and a perfect and safe contact is obtained. (Machine-translation by Google Translate, not legally binding)