Electrical Machine Small 309×320 Medium 618×640 Large 989×1024 Download Tiff Original 2317×2400 | (557.0 KB) Description "A form of an electrical machine. S being the glass cylinder turning on an axis, Y the conductor, F the rubber, A A supports." —Wells, 1857 Keywords axis, base, Electrical, glass, handle, machine, Metallic, plate, silk Galleries Miscellaneous Industrial Machinery Source: David A. Wells The Science of Common Things; A Familiar Explanation of the First Principles of Physical Science277 Courtesy the private collection of Roy Winkelman
