1768 21 July (advt.) By Alexander Brodie..a Manufactory for his new-invented Screw-Lever for Bedsteads.
1801 Suppl. II. 796/2 at Weaving The rollers..are cylinders, pressed together by a screw lever.
2012 A. F. Parks ii. 10 The majority of the English presses evidently did not include the updates..that improved the screw lever.