Dividing engine, invented by Sir John Barton, 1820, (in damaged condition) (for list of accessories see typewritten sheet) in technical file Linear instrument dividing engine. 1820
Linear dividing engine, built by Fairburn & Co. of Leeds in 1863 at a cost of £52 for the Vale of Neath Railway, obtained by the Great Western Railway in July 1866, installed in Swindon Works A Shop Tool Room in November 1906, recovered from British Rail Engineering Ltd., Swindon, with small steel rule produced on the machine as an example of work. Linear dividing engine 1863