Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . 276 LAUNDRY MACHINERY. To wash any fabric properly, it is of the utmost importance that the water be pure. Many exten-sive laundries have found it necessary to build large charcoal and gravel filters in order to render thewater fit for use. Water that is very hard, containing large quantities of lime, will not properly 2737.

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