Vacuum cleaning systems : $b A treatise on the principles and practice of mechanical cleaning
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"Vacuum Cleaning Systems: A Treatise on the Principles and Practice of Mechanical Cleaning" by M. S. Cooley is a scientific publication written in the early 20th century. The book primarily focuses on the development, specifications, and testing of various vacuum cleaning systems used for mechanical cleaning in buildings, particularly in the context of improving indoor hygiene. It delves into the historical evolution of vacuum cleaning technology and examines both the engineering principles and practical applications of vacuum systems. At the start of the treatise, Cooley outlines the origins of mechanical cleaning devices, discussing early attempts at creating efficient cleaning machines and the limitations of those designs, particularly carpet sweepers and compressed air cleaners. He introduces key innovations in vacuum technology, including the first satisfactory vacuum producers and the advent of portable vacuum cleaners. The opening sets the stage for a detailed analysis of vario
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