Invention and Engineering

Automatic lubricator

An automatic lubricator is a device fitted to a steam engine to supply lubricating oil to the cylinders and, sometimes, the bearings and axle box mountings as well. There are various types of automatic lubricator, which include various designs of displacement, hydrostatic and mechanical lubricators.

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See also

• ▸Economic history of the United States
• ▸Geode
• ▸Chocolate bar

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