Atomic Awesome, Big Complicated Machines, Technostalgia

Mesta Memories #13 – Una-Flow Engines

plantproductofme00mest_0060The Mesta Machine Company manufactured Una-Flow (know today as “uniflow“) steam engines for use in rolling mills and power plants as an alternative to other engines that they produced. Una-flow engines use steam that flows through the engine’s cylinders in one direction, hence the name. This method of operation gains thermal efficiency by maintaining a thermal gradient along the length of the cylinder and uses less steam than other engines.

plantproductofme00mest_0061All images are from the 1919 edition of “Plant and product of the Mesta Machine Company, Pittsburgh, Pennsylvania“.

Other articles in this series:

Mesta Memories #10 – Gas Blowing Engines

Regarding the Images in “Mesta Memories”

Mesta Memories #11 – Steam Blowing Engines

Mesta Memories #12 – Gas Power Engines

  • It's a piston port two stroke. Ingenious.

  • piesutehen

    good…. enough said.