单词 | motograph |
释义 | motographn. Now historical. = electromotograph n. at electro- comb. form 1. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telegraphy > telegraph > [noun] > other parts of telegraphs electric wire1819 pecker1858 sounder1860 motograph1874 contact-point1879 phonopore1885 phonophore1886 separator1891 syntonizer1900 power buzzer1918 1874 G. F. Barker Let. 3 Nov. in Science (1949) 7 Feb. 137/2 It occurred to me while examining the remarkable little instrument of yours—the motograph—at the Franklin Institute this evening, that perhaps you would be willing to come on and show it to the..National Academy of Sciences. 1875 Harper's Mag. Apr. 769/2 The Edinson [sic] electro-motograph was lately explained and exhibited at a meeting of the Society of Telegraphic Engineers in London. 1883 J. Maier tr. E. Hospitalier Electr. II. 96 A principle which was first applied by the inventor [sc. Edison] to a telegraphic relay, under the name of electro-motograph. 1894 W. K. L. Dickson Life Edison 83 Motograph receiving and transmitting telephone. 1947 Science 7 Feb. 138/1 We know from a letter he wrote on November 8 [1874] to his father..that Edison attended the session of the National Academy of Sciences and demonstrated his electromotograph. DerivativesΚΠ a1884 E. H. Knight Pract. Dict. Mech. Suppl. 618/2 Motographic Receiver, an invention of Edison, by which the volume of sound is increased in a telephonic receiver. Called also Electro-motograph. 1891 G. H. Stockbridge Later Hist. Electr. in Amer. 188/1 He [sc. Edison] converted the motographic relay into a sound receiver. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1874 |
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