Elisha Collier

Elisha Haydon Collier (1788–1856) of Boston invented a flintlock revolver around 1814. His weapon is one of the earliest true revolvers, in contrast to the earlier pepperboxes which were multi-barreled guns. Collier's revolver was not self rotating but it was self-priming: a compartment automatically released gunpowder into the pan when the hammer was cocked.

It was patented in 1818, produced from 1819 by John Evans & Son of London, and used in quantity by the British forces in India. Over 10,000 were made between 1819 and 1824. A single barrel allowed greater accuracy and a faster reload time while reducing unnecessary weight. However, its flintlock action was a serious drawback: flints were unreliable and had to be changed frequently, while inferior quality powder risked a misfire.

Samuel Colt saw weapons of this type while serving as a cabin boy aboard the brig Corvo in 1832. Following his return from the Far East he was inspired to create his own caplock revolver: the Colt Paterson.

In addition to handguns, Collier produced revolving shotguns and carbines in the 1820s. Only 150 of these now rare guns were made.

In the 1830s Collier invented a new boiler for steam ships. He wrote a book on the subject, which was published in 1836. In 1839 Collier designed a machine for mass-producing nails for the Globe Dock Factory, Rotherhithe, Surrey.

Collier lived in England from 1818 until 1850, when he returned to Boston, Massachusetts. By this time Colt's cheaper mass-produced revolvers had supplanted his earlier, hand made designs. Collier is listed as having lived at 88 Eliot Street in an 1850 census, where he died on January 23, 1856.