^mntitit ^tnrsm. February 12, 1887.] los SCIEKCE IN TOTS. The poles of the battery are connected with the track A flftjjcent electric motor fa perhaps quitie as re- markable as a steam engine of the same price.' Such a rails. The machine will run in either direction. TI. … jects within its field magnetic. The yery fact of hold- mater's FLOATING NEEDLES. ing its armature with such tenacity always excites wonder, even in those who know most about it. motor is shown in the annexed engraving. It embodies The direction taken by the lines of force emanating all the…
Patents · Patented · Munn · Scientific American · Tube · Meta compound · Compressed air · Address munn · Express money · Water Supply · Obtaining patents · Fuel gas · Large number · Catch bar
Internet Archive · Public domain (published before 1931). Free to use for anything.
