The new international encyclopaedia . cord of whatever vibra-tions had been produced. PHONOGRAPH. 758 PHORCUS, PHORCYS. The invention of Leon Scott embodies the es-sential principles on which recording and repio-iliicinf inttniinents of the present day are new we sulvstitute a rcceivinf; funnel for theellipsoid, a more rigid or metal stylus for thebri-tle, and a tinfoil covered cylinder for thelampblack one. we ha\e the plionograph ofThomas A. Edison, as it was orifiinally con-striKted in 187: with this essential difference,however, that the sound vibrations were nowindented instead o
The new international encyclopaedia . cord of whatever vibra-tions had been produced. PHONOGRAPH. 758 PHORCUS, PHORCYS. The invention of Leon Scott embodies the es-sential principles on which recording and repio-iliicinf inttniinents of the present day are new we sulvstitute a rcceivinf; funnel for theellipsoid, a more rigid or metal stylus for thebri-tle, and a tinfoil covered cylinder for thelampblack one. we ha\e the plionograph ofThomas A. Edison, as it was orifiinally con-striKted in 187: with this essential difference,however, that the sound vibrations were nowindented instead of being traced. By reversingthe machine—that is. causing a blunt stylus totravel over the indentations made, the originalsound was re|)roduced. Great expectations wereentertained of this invention at the time; but it WUUlf WIIONT sePFODUcen urm SAPPHIRC BUTTON BALL f£PffODUC£ff A/fM SCPSfV / holcwDiPiiooijcf/! iveienr HINGEHINGESCRCW /»G£3iVIV£L [SCf£ky fii/Bff£f?GASH£r MICA DIAPHffAGM WEIGHT LIU^GX LOOP r WEIGHT Ltm^GGCPEW. StOTIN _REPPVCHlCeff PiiA ffUBB£/f SASKfTLINKBWlT UPPAffr OFMICA OlAPM/fAOM CffOSSHeAP SECTION OP APPARATUS OFUBAPH. EDISON PHONO- was found that after a few repetitions the recordbecame effaced from tlie tin foil and the inventionproved to be scarcely more than an interestingtoy. During the year 1888 Mr. Edison placed uponthe market a phonograph which was a far moreelaborate machine as well as more practical thanany of its predecessors. The tinfoil gave placeto a wax cylinder, which, as shown in the illus-tration, is slipped over and held on a recording and reproducing devices differslightly and are sIiowti in the accompanyingfigures. In operating, the wax cylinder is madeto revolve. In talking into the funnel, the malle- BIM OF PECO/rOEP WEIGHTRECOROEP AffU HEIGHT LIMtS LOOP\
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Keywords: ., bo, bookcentury1900, bookdecade1900, bookpublishernewyorkdoddmead
