Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 443
on the other side, andcannot be seen. This picture is of a machine of very remarkable historical interest(Fig. 17). This was designed by Pacinotti, and described about theyear 1864. It is exactly like a Gramme ring in many points. Itrevolves around a vertical axis instead of a horizontal axis, and… … Fig. 15.—Portion of a Gramme ring, showingthe mode of construction. A is a section of theIron ring made up of iron wire. B is a coil witlithe wire ends ready for attachment to commu-tator bars. of Pacinotti, but it is incontestible that Pacinotti was the inventor ofthe type from which all the other…
Science · Technology · Meteorology · Patents
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
