Watch as skilled workers bring a broken excavator hydraulic cylinder shaft back to life with precision and expertise. Using advanced workshop techniques and tools, the shaft is expertly repaired ...

Each of these two components consists of a gear with cylinder on shaft. Parts of the Bush differential analyzer surviving at the Smithsonian have museum numbers MA.314824 and 1983.3002.01 through 1983 ...

The Napier is a complicated extrapolation of a basic opposed-piston engine. Your average “engine” has cylinders and pistons lined up with a cylinder head on top feeding the gas and air mixture.