biography
pronunciation:
[valsherts]
| sex:
| male
|
| lived:
| (1820–1901)
|
| biography:
| Mechanical engineer, born in Malines, N Belgium. He studied at Liège, and in 1842 entered the state railway workshops. He invented a type of valve gear used in some steam engines (1844). He invented several other improvements to steam engines, and was awarded a gold medal at the Paris Exposition of 1878. |
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