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...

1780s Pumping Engine for the Coalbrookdale Company

Side view of pumping engine for the Coalbrookdale Company, Shropshire. This massive engine, with a 66 inch cylinder, was built for Joseph Rathbo...

1780s Pumping Engine for the Coalbrookdale Company

Top view of the beam of the pumping engine for the Coalbrookdale Company, Shropshire. This massive engine, with a 66 inch cylinder, was built ...

1780s Rotative 'Sun & Planet' Pumping Engine for River Head Water Works

Proposed design of inside view of the rotative machinery and pump work, seen from the end of the engine house, at New River Head Water Works, Londo...

1780s Rotative 'Sun and Planet' Pumping Engine for River Head Water Works

Proposed design for a pumping engine at New River Head Water Works, London. Some of Boulton & Watt’s first engines had been supplied to London...

1780s Single-acting Engine for the Hallamanin Mine

Reverse plan and section and outside view of the beam of engine for the Hallamanin Mine, Cornwall. Cornwall continued to be a major market for...

1780s Steam Wheel

Drawing of steam wheel, circa 1781. The steam wheel was Watt’s first design for using steam to create rotary (round and round) motion. The ste...

1780s 'Sun & Planet' Engine for Coates & Co.'s Oil Mill

Reverse section of 'sun & planet' engine for Coates & Co., Oil Mill, Hull, Yorkshire. Henry Coates and John Jarratt bought this 7 horse power ...

1780s 'Sun & Planet' Engine for Cotton Mill

Reverse general section of 'sun & planet' engine for George & James Robinson, Cotton Mill, Papplewick, Nottinghamshire. George and James Robinso...