TQ2679 : Science Museum - the 'lap engine'

taken 4 years ago, near to Kensington, Kensington And Chelsea, Great Britain

Science Museum - the 'lap engine'
Science Museum - the 'lap engine'
The London Science Museum has fewer stationary steam engine exhibits than it once had but is still home to the country's best selection of important early beam engines. This is arguably the most important of them all and has spawned several replicas world-wide. It is a Boulton and Watt rotative beam engine dating from 1788 and used at Boulton's Soho Manufactory to drive polishing (lap) machines. It worked until 1858 and was presented for preservation in 1861. It incorporates all of Watt's improvements - the separate condenser, roative motion using a sun and planet gear, parallel motion and the flyball governor (borrowed from wind and water mill technology). The double acting cylinder is 18.75" x 48" and the flywheel is 15.76' pitch circle diameter.
The engine is of 10 nominal horsepower but indicated 13.75 horsepower.

Parts of three other beam engines are visible and are illustrated separately.
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TQ2679, 1226 images   (more nearby )
Photographer
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Date Taken
Monday, 9 September, 2013   (more nearby)
Submitted
Friday, 20 September, 2013
Geographical Context
Historic sites and artefacts  Educational sites  City, Town centre 
Subject Location
OSGB36: geotagged! TQ 2682 7919 [10m precision]
WGS84: 51:29.8460N 0:10.4662W
Camera Location
OSGB36: geotagged! TQ 2682 7919
View Direction
West-southwest (about 247 degrees)
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Other Tags
Beam Engine  Steam Engine  Steam Engine (Preserved)  Stationary Steam Engine 

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