British Steam Engine Recognized As First Boulton and Watt with Parallel Motion

| November/December 1986

  • Flywheel

    ASME and the Museum

  • Flywheel

An 18th century engine, survivor of a 102-year stint in a London brewery and now housed in an Australian museum, has been designated an ASME historic mechanical engineering landmark.

The first Boulton and Watt rotative engine with parallel motion was designated the 19th International Mechanical Engineering Landmark by the American Society of Mechanical Engineers (ASME). During ceremonies on April 17, Dr. L. S. Fletcher, president of the Society, presented a bronze plaque to Dr. Lindsay Sharp, director of the Power House Museum, part of the Sydney Museum of Applied Arts and Sciences, in Australia.

The parallel motion mechanism is the critical element that allowed long-stroke pumping engines to become double-action and thus able to produce rotational motion. Built in 1785 as a single-acting engine, the Boulton and Watt was altered to its present double-acting configuration in 1795.

Museum staff Bill Bannister and Bert Bruin check parts near the 14-foot flywheel of the Boulton and Watt steam engine now in the Museum of Applied Arts and Sciences in Sydney, Australia. Photo courtesy of ASME and the Museum.

Replaced in 1887 by a more compact, higher powered compound steam engine, it was donated to the Museum and shipped to Australia, where it has been on display since 1888. It was once again restored to working condition for its bicentennial last year.

The engine was high technology for its day and more imposing than other mechanical achievements of the time the windmill and the clock. In May of 1797, King George III took Queen Charlotte and their children to inspect the Brewery works, the chief attraction being the engine. Although of modest capacity, it set a good example, and by 1796, 11 other Boulton and Watt engines were at work in London.


Farm Collector April 16Farm Collector is a monthly magazine focusing on antique tractors and all kinds of antique farm equipment. If it's old and from the farm, we're interested in it!

Save Even More Money with our SQUARE-DEAL Plan!

Pay now with a credit card and take advantage of our SQUARE-DEAL automatic renewal savings plan. You'll get 12 issues of Farm Collector for only $24.95 (USA only).

Or, Bill Me Later and send me one year of Farm Collector for just $29.95.

Facebook Pinterest YouTube