. Bulletin - United States National Museum. Science. Figure Experimental Graphofhonk photo- graphed in 1884 at the \'olta Laboratory. This is similar to one preserved at the Smithsonian Institu- tion. {Smilhsonian photo 44312-Z).) least 8 feet from the ; The point of the jet is glass, and could be directed at a single groove. The other experimental Graphophones indicate an amazing range of experimentation. While the method of cutting a record on wax was the one later exploited commercially, everything else seems to have been tried at least once. The following was noted on W
. Bulletin - United States National Museum. Science. Figure Experimental Graphofhonk photo- graphed in 1884 at the \'olta Laboratory. This is similar to one preserved at the Smithsonian Institu- tion. {Smilhsonian photo 44312-Z).) least 8 feet from the ; The point of the jet is glass, and could be directed at a single groove. The other experimental Graphophones indicate an amazing range of experimentation. While the method of cutting a record on wax was the one later exploited commercially, everything else seems to have been tried at least once. The following was noted on Wednesday, March 20, 1881: "A fountain pen is attached to a diaphragm so as to be vibrated in a plane parallel to the axis of a cylinder—The ink used in this pen to contain iron in a finely divided state, and the pen caused to trace a spiral line around the cylinder as it turned. The cylinder to be covered with a sheet of paper upon which the record is made. . This ink . . can be rendered magnetic by means of a permanent magnet. The sounds were to be reproduced by simply substituting a magnet for the fountain pen . ." The result of these ideas for magnetic reproduction resulted in patent 341287, granted on May 4. 1886; it deals solely with "the reproduction, through the action of magnetism, of sounds by means of records in solid ;. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
