Ure's image of a double-cylinder machine driven by a Maudslay table steam engine was probably reproduced from Timperley's book issued the same year. The diagrams on the right illustrate the complex paper path. Regarding the steam engine, Ure adds a detail that I have not seen elsewhere:
"Motion is given to the whole system of apparatus by a strap from a steam engine going round a pulley placed at the end of axle at the back of the frame; one single machine may be driven by the power of two men acting upon a fly-wheel. In Messrs. Clowes' establishment in Stamford-street, two five-horse engines actuate nineteen of the above described machines."