Walschaerts valve gear
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The Walschaerts valve gear, known as Heusinger valve gear in parts of Europe, is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgian railwa
A set of Walschaerts valve gear on 60163 Tornado. Note that the radius bar is set to reverse.
Swindon, Marlborough and Andover Railway Single Fairlie 0-4-4T of 1878. This was the first British locomotive to be fitted with Walschaerts valve gear
The Walschaerts valve gear on a Pennsylvania Railroad E6s
Valve gear
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The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in
Walschaerts valve gear
…The Walschaerts valve gear, known as Heusinger valve gear in parts of Europe, is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgian railway engineer Egide Walschaerts in 1844. The gear is…
Soo Line 346 in 1961, showing the Kinkan-Ripken arm on the connecting rod at the right hand edge of the picture
Stephenson's Valve gear. Two eccentrics at nearly 180-degree phase difference work cranks from the main drive shaft. Either can be selected to work the valve slide by shifting the slotted expansion link.
Baker valve gear assembly