. Bulletin. Science. Figure 6i.—Taylor's motor. {USNM iSiggs; Smithsonian photo ^yo^S.). Figure 62.—^Joule's rotating motor. From Sturgeon's Annals of Electricity, 1839, vol. 3, pi. 13, fig. I. including the one shown in figure 62. He devised another kind of motor (fig. 63) in 1842. In the same year, P. Elias, of Haarlem, invented a motor with a ring-type armature '°- (fig. 64). There were other inventors of electric motors in the the United States. G. Q. Colton,'"' a traveling den- tist fresh out of medical college, while demonstrating some wonders of science like laughing gas and the Mo
. Bulletin. Science. Figure 6i.—Taylor's motor. {USNM iSiggs; Smithsonian photo ^yo^S.). Figure 62.—^Joule's rotating motor. From Sturgeon's Annals of Electricity, 1839, vol. 3, pi. 13, fig. I. including the one shown in figure 62. He devised another kind of motor (fig. 63) in 1842. In the same year, P. Elias, of Haarlem, invented a motor with a ring-type armature '°- (fig. 64). There were other inventors of electric motors in the the United States. G. Q. Colton,'"' a traveling den- tist fresh out of medical college, while demonstrating some wonders of science like laughing gas and the Morse telegraph, made an electric motor that he added to his show. In 1847 Colton placed a recipro- cating motor, 14 inches long by 5 inches wide, on a track, and sent power from four Grove cells through the track. This invention (fig. 65) was widely exhib- i»2 La Lumiere Hectrique, 1882, vol. 7, pp. 13-14. "^ Scientific American, September 25, 1847, vol. 3, p. 4. T. C. Martin, "The Electric Railway Work of Dr. Colton in 1847— The First Use of Track as Circuit," Electrical Engineer, 18'93, vol. 16, pp. 49-51. 266 BULLETIN 228: CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution; United States. Dept. of the Interior; United States National Museum. Washington, Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off
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