page_title: Stephenson valve gear
hierarchical_section_title: Stephenson valve gear
caption_attribution_description: Black 5 George Stephenson 7
context_page_description: The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for all kinds of steam engines. It is named after Robert Stephenson but was invented by his employees.
context_section_description: The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for all kinds of steam engines. It is named after Robert Stephenson but was invented by his employees.
caption: British LMS Stanier Class 5 4-6-0 Locomotive  no. 4767 showing experimental Stephenson valve gear unusually mounted outside the frames
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