 | 1888 - 928 pages
...knowing the difficulty of the achievement. He said : — " Suppose that a man speaks near a movable disc, sufficiently flexible to lose none of the vibrations of the voice ; that this disc alternately makes and breaks the currents from a battery. You may have at a distance another disc,... | |
 | Sir Norman Lockyer - 1913 - 810 pages
...them : — " The earliest record of a theoretical telephone was contained in Du Moncel's ' Exposé des Applications,' Paris, 1854, when Charles Bourseul,...author says, ' Suppose a man speaks near a movable disc sufficiently flexible to lose none of the vibrations of the voice; that this disc alternately... | |
 | Park Benjamin - 1886 - 422 pages
...with the aid of shaking-tubes and trumpets, impossible to exceed somewhat narrow limits. Suppose that a man speaks near a movable disk, sufficiently flexible...voice, that this disk alternately makes and breaks the current from a batter;) : you may have at a distance another disk which will simultaneously execute... | |
 | United States. Supreme Court - 1888 - 632 pages
...aid of speaking tubes and trumpets, it is impossible to exceed somewhat narrow limits. Suppose that a man speaks near a movable disk, sufficiently flexible...; that this disk alternately makes and breaks the connection with a battery : you may have at a distance another disk which will simultaneously execute... | |
 | United States. Patent Office - 1889 - 700 pages
...referring to the mode in which speech is transmitted by the vibrations of the air, he said : Snpposte that a man speaks near a movable disk sufficiently flexible...voice; that this disk alternately makes and breaks the connection with a battery ; you may have at a distance another disk which wi.l simultaneously execute... | |
 | United States. Patent Office - 1890 - 784 pages
...addiug the mode in which speech is transmitted by the vibrations of the air, he continues: Snppose that a man speaks near a movable disk sufficiently flexible to lose none of the vibrations of the vuice, that this disk alternately makes and breaks the connection with a battery, you may have at a... | |
 | John Munro - 1891 - 314 pages
...sounds and even speech by electricity. ' Suppose,' he explained, ' that a man speaks near a movable disc sufficiently flexible to lose none of the vibrations of the voice ; that this disc alternately makes and breaks the currents from a battery : you may have at a distance another... | |
 | W. J. Keenan, James Riley - 1893 - 124 pages
...with the aid of speaking tubes and trumpets, impossible to exceed somewhat narrow limits. Suppose that a man speaks near a movable disk sufficiently flexible...vibrations of the voice ; that this disk alternately moves and breaks the currents from a battery. You may have at a distance another disk which will simultaneously... | |
 | 1896 - 854 pages
...trumpets, it is impossible to exceed somewhat narrow limits. Suppose that a man speaks near a ir.ovable disk, sufficiently flexible to lose none of the vibrations of the voice; that this disc alternately makes and breaks the connection with a battery; you may have at a distance another... | |
 | Florian Cajori - 1899 - 340 pages
...for a short time. The earliest record of a theoretical telephone was contained in Du Moncel's Exposi des Applications, Paris, 1854, when Charles Bourseul,...man speaks near a movable disk sufficiently flexible tc lose none of the vibrations of the voice ; that this disk alternately makes and breaks the currents... | |
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Suppose that a man speaks near a movable disk, sufficiently flexible to lose none of the vibrations of the voice ; that this disk alternately makes and breaks the connection with a battery; you may have at a distance another disk which will simultaneously... 
