Background
He was born in Birmingham, the second of nine children of William Simms (1763-1828), an instrument maker.
He was born in Birmingham, the second of nine children of William Simms (1763-1828), an instrument maker.
After two years education in January 1808 he was apprenticed to Thomas Penstone, a member of the Worshipful Company of Goldsmiths. However William"s interests lay elsewhere and in 1809 he was apprenticed to a Mr. Bennett, a former employee of Jesse Ramsden.
This business was soon converted to the manufacture of optical instruments. William Senior prospered and in 1804 he was elected a Freeman of the City. William Simms Junior. was sent in January 1806 to be educated in mathematics by a Mr.
Hayward.
He was elected a Freeman of the Worshipful Company of Goldsmiths in 1815 and set up in business for himself, working until 1818 at his father"s Blackfriars premises. William Simms" chief interest was the division of the circle, the accuracy of which was essential to the manufacture of accurate scientific instruments. He became a correspondent of Thomas Jones, who brought him into contact with the instrument maker Edward Troughton and also persuaded him to join the Royal Society for the encouragement of Arts, Manufactures & Commerce.
Here he met the engineer Bryan Donkin, and also Colonel Colley of the Ordnance Survey.
Simms became Troughton"s partner in 1826 and on his retirement took over his business, which had a very good reputation in the manufacture of scientific instruments. Simms specialized in surveying instruments and from 1817 supplied theodolites to the Ordnance Survey and then to the East India Company, including those used by George Everest.
On a larger scale he supplied telescopes, mural circles and other astronomical instruments to observatories at Krakow, Madras, Cambridge, Lucknow, Calcutta, Edinburgh, Brussels, Greenwich and other places. By the close of his career he had supplied most of the world"s leading observatories with equipment.
His reputation was enhanced by the improvements he made to graduating instruments and his self-acting circular dividing engine reduced the work involved in manufacture from weeks to hours.
He also helped standardize the measures of length the yard and chain for the Admiralty. Simms was elected an Associate of the Institution of Civil Engineers in 1828. He was a Fellow of the Royal Astronomical Society, which he joined in 1831, and elected a Fellow of the Royal Society in 1852.
Simms died at the family home in Carshalton on 21 June 1860 and was buried at West Norwood Cemetery.
Royal Society.