Inventions

=Inventions=

Thomas Edison's first patented invention was the electric vote recorder, a machine that had 1button to vote yes and 1 for no. Edison was disappointed at its lack of demand. Lawmakers said it worked "too well". This meant that it stopped legislators from making a speech, which delayed the voting. This process had worked to the advantage of some lawmakers. About a year later, Edison invented a device that greatly improved the stock ticker. He sold it for $40,000.00, which was a small fortune for him. In 1873, Tom invented a new kind of telegraph transmitter for clearer messages- the Quadruplex transmitter. After experimenting with 22 transmitter varieties, he finally succeeded on July 9th, 1874. When he sold the device to a company, however, there were arguments over who recieved the money for Quadruplex transmitters that were sold. Even with these problems, Edison continued to work. Many new ideas came to him, including the invention of the electric pen and duplicating press. The pen's pointed tip moved up and down rapidly, making holes in a sheet of waxed paper. The duplicating press could then be used to seep ink or paint through the holes, using the wax paper as a stencil.