Circular Saw invented in Notts
By Joseph Murray of Mansfield
Joseph Murray worked as a wood and iron turner at the Rock Valley Mills in Mansfield.
He is said to have been the son of Byron's servant, "Old Joe Murray" who served the poet at nearby Newstead Abbey.
In 1850, an anonymous booklet published in Mansfield (1) credited Joseph Murray with the invention of the circular saw noting that the original item, (then still preserved) took the form of "a plain iron plate, measur[ing] four inches in diameter".
The date given for the invention is 1790 (2).