The Universal incorporated several key innovations, such as a unison that made sure that all of the printers on the line were synchronized with the transmitter. By 1871 he had incorporated all his best designs into what he called the Universal stock ticker. In one version of the technology, the basic printing mechanism was changed slightly to print stock prices more efficiently, and its distinctive sound led to its being called the “ticker.” Edison eventually started working for the company that owned the patents to this machine, and after learning more about it struck out on his own, inventing several improved versions. It was a clever design but had problems that prevented its commercial use.īy 1869, when Edison moved to New York, printing telegraphs had already been adapted for use in the New York Stock exchanges. While he was living in Boston in 1868, he designed a printing telegraph that only used one wire, unlike the three-wire ticker of Edward Calahan, invented the year before and used in New York. It was also a technology to which many other inventors contributed.Įdison’s early years as a telegraph operator led to an intimate knowledge of the workings of the telegraph. His most famous stock ticker, called the Universal stock ticker, was, like many of Edison’s inventions, a technology that underwent a long evolution. A ticker tape parade thrown in New York City’s Canyon of Heroes (the financial district) for the Apollo 11 astronauts.Īn improved stock ticker was one of Edison’s first great inventions, and it revolutionized the speed at which financial information flowed.
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