free part of the spring is soldered a small plate of plati pointedcontact screwj. The standardf is connected with the remainingpole of the battery cl. In the end of the spool far enough to be surrounded by several convo lutions of the primary wire. The primary coil is 1! INDEX OF INVENTIONS For which Letters Patent of the United States were Granted October 17 1893 AND EACH BEARING THAT DATE. 505745 Beehive T. 0. Hines 507070, scientific american, 1893-10-28
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free part, spring, soldered, small plate, plati pointedcontact screwj, standardf, connected, remainingpole, battery cl, spool far enough, surrounded, several convo lutions, primary wire, primary coil, 1! INDEX, INVENTIONS, Letters Patent, United States, Granted October 17 1893, EACH BEARING THAT DATE, 505745 Beehive T, 0, Hines 507070, scientific american, 1893-10-28, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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