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单词 motograph
释义

motographn.

Brit. /ˈməʊtəɡrɑːf/, /ˈməʊtəɡraf/, U.S. /ˈmoʊdəˌɡræf/
Origin: Formed within English, by compounding. Etymons: moto- comb. form, -graph comb. form.
Etymology: < moto- comb. form + -graph comb. form. Compare electromotograph n. at electro- comb. form 1.
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.

Derivatives

motographic adj. Obsolete
ΚΠ
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).
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n.1874
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