Devised a large number of improvements and inventions, for example, perpetual calendar, calculating machine, naval gun carriage, drum capstan, device for opening letters without breaking the seals;
served as the King's Master of Mechanics;
1660 - baronetcy
1666 - published 'A New Method of Cryptography'. Obtained a patent for making metal fire-hearths
1671 - patented speaking trumpet
1673 - published 'The Description and Use of Two Arithmetick Instruments' and 'Perpetual Almanack and Several Useful Tables'
1675 - patented a plunger pump
1679 - published 'Doctrine of Interest both Simple and Compound'