Edward Davy

Who was Edward Davy?

Edward Davy was an English physician, scientist, and inventor who played a prominent role in the development of telegraphy, and invented an electric relay.

Davy was born in Ottery St Mary, Devonshire, England, son of Thomas Davy. Edward Davy was educated at a school run by his maternal uncle in Tower Street, London. He was then apprenticed to Dr C. Wheeler, house surgeon at St Bartholomew's Hospital. Davy won the prize for botany in 1825, was licensed by the Worshipful Society of Apothecaries in 1828 and the Royal College of Surgeons in 1829. Soon after graduating, Davy began trading as an operative chemist under the name of Davy & Co. In 1836 he published a small book Experimental Guide to Chemistry, at the end of which was a catalogue of goods supplied by his firm.

Davy published Outline of a New Plan of Telegraphic Communication in 1836 and carried out telegraphic experiments the following year. He demonstrated the operation of the telegraph over a mile of wire in Regent's Park. In 1837 he demonstrated a working model of the telegraph in Exeter Hall. He was granted a patent for his telegraph in 1838.