The Leavers machine is a lacemaking machine that John Levers adapted from Heathcoat's Old Loughborough machine. It was made in Nottingham in 1813. The name of the machine was the Leavers machine (the 'a' was added to aid pronunciation in France). The original machine made net but it was discovered that the Jacquard apparatus could be adapted to it. From 1841 lace complete with pattern, net and outline could be made on the Leavers machine.