Opinião das pessoas - Escrever uma crítica
Não foram encontradas quaisquer críticas nos locais habituais.
action acts adjusting American answer apparatus application armature arrangement articulate attached battery Bell patent Bell Telephone Company Bell's Boston break called carbon caused changes circuit claim coil combination COMPLAINANTS connected construction corresponding Court Cross-Int defendants DEPOSITION described diaphragm direction effect electrical electro-magnet EVIDENCE examined Exhibit experiments fact force give given heard hearing helix improvement increased inductive instrument invention iron known Letters Patent magnet March material means membrane metal method microphone Molecular motion musical operation passing patent piece pitch placed plate practical present pressure produced Professor published receiver referred Reis represented resistance shown signals similar sound speaking telephone speech station substantially talking Telegraph tion tones transmission transmitter understand undulations United variations varying vibration voice waves Weyde wire witness x-Int York
Página 469 - The method of, and apparatus for, transmitting vocal or other sounds telegraphically, as herein described, by causing electrical undulations, similar in form to the vibrations of the air accompanying the said vocal or other sounds, substantially as set forth.
Página 71 - Laboratory, for the purpose of establishing and maintaining a laboratory or station for scientific study and investigation, and a school for instruction in biology and natural history, and have complied with the provisions of the statutes of this Commonwealth...
Página 72 - An Act to authorize the formation of corporations for manufacturing, mining, mechanical, or chemical purposes...
Página 65 - The same to be held and enjoyed by the said John Doe for his own use and behoof, and for the use and behoof of his legal representatives, to the full end of the term for which said letters patent are or may be granted, as fully and entirely as the same would have been held and enjoyed by me had this assignment and sale not been made.
Página vi - March one thousand eight hundred and thirty-one, the full and exclusive right and liberty of making, constructing, using and vending to others to be used...
Página 332 - I need scarcely say I was astonished and delighted. So were others, including some judges of our group, who witnessed the experiments and verified with their own ears the electric transmission of speech. This, perhaps the greatest marvel hitherto achieved by the electric telegraph, has been obtained by appliances of quite a homespun and rudimentary character. With somewhat more advanced plans and more powerful apparatus, we may confidently expect that Mr. Bell will give us the means of making voice...
Página 451 - No. 12146, now remaining among the records of the said Court in my office. IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed the seal of the aforesaid Court at Philadelphia this 8th day of April, AD 1957.
Página 469 - These undulations are similar in form to the air vibrations caused by the sound — that is, they are represented graphically by similar curves. The undulatory current passing through the electro-magnet f influences its armature h to copy the motion of the armature c. A similar sound to that uttered into A is then heard to proceed from L.
Página xxxi - Office a written description of the same and of the manner and process of making, constructing, compounding and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art or science to which it appertains, or with which it is most nearly connected, to make, construct, compound, and use the same...