Posts Tagged: "induction telegraphy"

Granville Woods and Induction Telegraphy

There are some who say that the number of patents Woods obtained is at least 60, may be even much higher. But from Professor Fouché’s book, I’ve only identified 45 patents for Woods which is still a pretty awesome figure. These patents may be divided into essentially 4 technology categories: (1) induction telegraphy of which there are 8 patents; (2) electrical railways of which there are 20 patents; (3) other electrical devices of which there are 13 patents; and (4) 4 patents on “other inventions” that don’t fall into any specific category. This article focuses only the first category of inventions, induction telegraphy, for which Woods is most famous for. So why is induction telegraphy important? Well…