The History And Progress of the Electric Telegraph: With Descriptions of ...
The History And Progress of the Electric Telegraph: With Descriptions of ...
The book The History And Progress of the Electric Telegraph: With Descriptions of ... was written by author Here you can read free online of The History And Progress of the Electric Telegraph: With Descriptions of ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The History And Progress of the Electric Telegraph: With Descriptions of ... a good or bad book?
Where can I read The History And Progress of the Electric Telegraph: With Descriptions of ... for free?
In our eReader you can find the full English version of the book. Read The History And Progress of the Electric Telegraph: With Descriptions of ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The History And Progress of the Electric Telegraph: With Descriptions of ...
In our eReader you can find the full English version of the book. Read The History And Progress of the Electric Telegraph: With Descriptions of ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The History And Progress of the Electric Telegraph: With Descriptions of ...
What reading level is The History And Progress of the Electric Telegraph: With Descriptions of ... book?
To quickly assess the difficulty of the text, read a short excerpt:
But the most important improvement introduced into the construction of this apparatus was in the substitu- Digitized by VjOOQIC THE ELECTRIC TELEGRAPH* 53 tion of magneto -electric currents for those of a voltaic battery.
The sending apparatus, so modified^ is shown in Fig. 22.
It consisted of a permanent horse-shoe magnet, or combina- tion of magnets, fixed to the base board b, between the poles of which was placed a vertical shaft, supporting, on opposite sides, the coils c c' of an electro-m...agnet. They were so arranged that, on turning the shaft, the cores of c S at the same moment approached, and left the poles of the perma- nent magneti The ends of the coils bf wire round the Fig. 22.
electro-magnet were connected, by means of a sliding contact underneath, with the terminal screws e and/. On the top Of the shaft was a pinion d, locking into the tooth- wheel Vi\ The number of teeth of the wheel vo were in relation to those of the pinion n, so that one complete revolution of w would cause d to revolve half as many times as there were letters, numerals, &c., engraved on the corresponding dials of the sending and receiving instruments.
What to read after The History And Progress of the Electric Telegraph: With Descriptions of ...?
You can find similar books in the "Read Also" column, or choose other free books by Robert Sabine to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
But the most important improvement introduced into the construction of this apparatus was in the substitu- Digitized by VjOOQIC THE ELECTRIC TELEGRAPH* 53 tion of magneto -electric currents for those of a voltaic battery.
The sending apparatus, so modified^ is shown in Fig. 22.
It consisted of a permanent horse-shoe magnet, or combina- tion of magnets, fixed to the base board b, between the poles of which was placed a vertical shaft, supporting, on opposite sides, the coils c c' of an electro-m...agnet. They were so arranged that, on turning the shaft, the cores of c S at the same moment approached, and left the poles of the perma- nent magneti The ends of the coils bf wire round the Fig. 22.
electro-magnet were connected, by means of a sliding contact underneath, with the terminal screws e and/. On the top Of the shaft was a pinion d, locking into the tooth- wheel Vi\ The number of teeth of the wheel vo were in relation to those of the pinion n, so that one complete revolution of w would cause d to revolve half as many times as there were letters, numerals, &c., engraved on the corresponding dials of the sending and receiving instruments.
What to read after The History And Progress of the Electric Telegraph: With Descriptions of ...?
You can find similar books in the "Read Also" column, or choose other free books by Robert Sabine to read onlineMoreLess
Write Review:
User Reviews: