THE MUNCASTER ENGINES  

2-CYL ENTABLATURE ENGINE WITH PARALLEL MOTION

Julius de Waal

Edgar T. Westbury explained that the type of engine described here is known as an ‘entablature’ or ‘table’ engine which  first appeared in the early 1800s and became popular in the mid 19th century from prominent makers such as Maudslay.

The term ‘entablature’ is borrowed from architecture and the classic Graeco-Roman era but simply means a flat table supported by four or more columns.

The one drawn here is a twin-cylinder type with overhung cranks at either end of the shaft and a central flywheel. The parallel motion geometry is simple, and was used on many types of engine. As Westbury says, use of a deep bedplate, or plinth, with the cylinders sunk into it not only enhances the dignified appearance, but increases rigidity by allowing shorter columns to be used.

This design could, if desired also be used as the basis for a single cylinder engine as an alternative engine to one shown on these pages.


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THE MUNCASTERS

Links to the Muncaster engines to date.


  1. 1.Oscillator

  2. 2.Double oscillator

  3. 3.Horizontal mill engine -slide valve

  4. 4.Horizontal mill engine - slide valve part 2

  5. 5.Horizontal mill engine - bar crosshead

  6. 6.Horizontal mill engine - slipper crosshead

  7. 7.Horizontal mill engine - crosshead trunk guide

  8. 8.Vertical ‘steam hammer’ columns

  9. 9.Vertical single column

  10. 10.Vertical two cylinder

  11. 11.Vertical compound

  12. 12.Entablature single cylinder

  13. 13.Entablature twin cylinder

  14. 14.Grasshopper beam engine

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