Woodcroft, Bennet (FRS; FSA) 1803 - 1879

1803-1879, engineer; Patent Office administrator, English; British

1827 - patented a method of printing yarn before weaving.

1832 - patents an increasing pitch screw propeller.

1838 - patented improved tappets for looms.

1844 - patents a variable pitch propeller, based on his earlier increasing pitch screw propeller.

1843 - makes the propeller for HMS 'Rattler': the first warship to be powered by screw propeller.

1847 - appointed professor of machinery at University College, London.

1852 - appointed assistant to the commissioner of patents.

1859 - elected a fellow of the Royal Society.