Six-column beam engines are a type of beam engine, where the beam's central pivot is supported on a cast-iron frame or 'bedstead', supported on six iron columns. == History == These engines were a development after the house-built engine.
Six-column beam engines are a type of beam engine, where the beam's central pivot is supported on a cast-iron frame or 'bedstead', supported on six iron columns. == History == These engines were a development after the house-built engine.
Source: Wikipedia "Six-column beam engine" · CC BY-SA 4.0
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