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Stephenson valve gear is a convenient arrangement for any engine that needs to reverse and was widely applied to railway locomotives, traction engines, steam car engines and to stationary engines that needed to reverse, such as rolling-mill engines. It was used on the overwhelming majority of marine engines.
Michael Stephenson became the Managing Director in 1970. He reintroduced retail sales and begins to shape the business as a one-stop-shop for catering and hospitality equipment. Michael became the Chairman of the Board in the early 1980s, but the recession of the period, referred to as The Winter of Discontent , resulted in more turbulent times ...
Exterior of a Stevenson screen. A Stevenson screen or instrument shelter is a shelter or an enclosure used to protect meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. [1]
Both the Davy and Stephenson lamps were fragile. The gauze in the Davy lamp rusted in the damp air of a coal pit and became unsafe, while the glass in the Stephenson lamp was easily broken, and allowed the flame to ignite firedamp in the mine; later Stephenson designs also incorporated a gauze screen as a protection against glass breakage. [18]
Drawing of Blücher by Clement E. Stretton. Blücher (often spelled Blutcher) was built by George Stephenson in 1814; the first of a series of locomotives that he designed in the period 1814–16 which established his reputation as an engine designer and laid the foundations for his subsequent pivotal role in the development of the railways.
The ninth locomotive built for the L&MR, it was Stephenson's next major design change after the Rocket. It was the first locomotive to employ inside cylinders, and subsequently the 2-2-0 type became known as Planets. On 23 November 1830 No.9 Planet ran the approximately 50 km (30 mi) from Liverpool to Manchester in one hour.
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