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Joy Valve Gear Diagram. Joy valve gear is a type of steam locomotive valve gear, designed by David Joy (3 March 1825 – 1903), Locomotive and Marine engineer, and patented (no. 929) on 8 March 1879. [1] The British patent has not been found but the US patent (US252224 of 10 January 1882) has. [2]
The passenger coaches of the Great Western Railway (GWR) were many and varied, ranging from four and six-wheeled vehicles for the original broad gauge line of 1838, through to bogie coaches up to 70 feet (21 m) long which were in service through to 1947. Vacuum brakes, bogies and through-corridors all came into use during the nineteenth century ...
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If an impeller has only a few blades (i.e a large pitch), it will result in less lift force and in a similar manner for more blades (i.e. very low pitch), there will be high drag force. Blade solidity should not be confused with rotor solidity, which is the ratio of the total area of the rotor blades to the swept area of the rotor.
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“Even at 450 pounds. I was a very sexual woman," Cross says in PEOPLE's exclusive clip of '1000-Lb. Best Friends,' adding that she feels even more sexual at 195 lbs.
Alfa Anderson, a vocalist known for her work with the iconic 1970s disco band Chic, has died. She was 78. Niles Rodgers, founder of Chic, shared the news in an Instagram post on Dec. 17. “RIP ...