1780s Double-acting Engine for the Wheal Fortune Copper Mine

Reverse outside front view of engine for Wheal Fortune Copper Mine, Cornwall. Cornwall continued to be a major market for Boulton & Watt durin...

1780s Double-acting Engine for Wheal Fortune Copper Mine

General section of engine for Wheal Fortune Copper Mine, Cornwall, April 1785. Cornwall continued to be a major market for Boulton & Watt duri...

1780s Double-acting Engine to replace Coates & Co.'s Horse Gin and Millwork

Drawing of Coates & Co.’s Horse Gin and Millwork to be replaced by a double-acting engine. Henry Coates and John Jarratt bought this 7 horse po...

1780s Double-acting Engine's Working Gear, Soho Manufactory

Drawing of the working gear of the double-acting engine, Soho Manufactory. The idea of using steam to push a piston both up and down, thus all...

1780s Double-acting Pumping Engine at River Head Works replaced this Atmospheric Engine Designed by John Smeaton in the 1760s

Upright section of atmospheric engine, at New River Head Water Works, London. Until the installation of the Boulton & Watt 32 inch engine in 1...

1780s Double-acting Pumping Engine for River Head Water Works

General view of pumping engine for New River Head Water Works, London, [Portfolio 5/1090] This drawing shows a typical Boulton & Watt pumping e...

1780s Double-acting Sun & Planet Engine for a Tobacco & Snuff Mill

Top part of drawing of elevation and plans of Messrs. Fish & Yates’ Tobacco and Snuff Mill, London. Samuel Fish and John Yates bought an 8 hor...

1780s Double-acting Sun & Planet Engine for a Tobacco and Snuff Mill

Lower part of drawing of elevation and plans of Messrs. Fish & Yates’ Tobacco and Snuff Mill, London. Samuel Fish and John Yates bought an 8 h...

1780s Framing for Samuel Whitbread's Engine, London

Reverse side view of the framing for Samuel Whitbread’s engine, London. The parallel motion was first used on an engine for the London brewer Sa...

1780s 'Great Engine' for London Bridge

Plan of the 'Great Engine' at London Bridge, March 1787. The 'Great Engine' was actually a large water wheel that was installed in the fifth a...

1780s Parallel Motion for Thomas Allingham of Rotherhithe

Parallel Motion for Thomas Allingham, Rotherhithe. Watt developed the parallel motion to keep the piston rod absolutely vertical as the beam m...

1780s Pumping Engine for Rotterdam

Preliminary drawings of the engine house for pumping engine, near Rotterdam, Holland. Drainage of the polders and low-lying lands was a major is...