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See also:VACQUERIE, AUGUSTE (1819-1895) , See also:French journalist and See also:man of letters, was See also:born at Villequier (See also:Seine Inferieure) on the 19th of See also:November 1819. He was from his earliest days an admirer of See also:Victor See also:Hugo, with whom he was connected by the See also:marriage of his See also:brother See also: In the last See also:decade of the 19th See also:century compressed air came into use, especially in See also:America, for cleaning railway carriages, but it was found difficult to arrange for the collection of the dust that was blown out by the jets of air, and in See also:con-sequence recourse was had to working by suction. From this beginning several types of vacuum cleaner have See also:developed. In the first instance the See also:plants were portable, consisting of a pump driven by a petrol See also:engine or electric motor, and were periodically taken See also:round to houses, offices &c., when cleaning was required. The second See also:stage was represented by the permanent See also:installation of central plants in large buildings, with a See also:system of pipes See also:running to all floors, like See also:gas or See also:water pipes, and provided at convenient points with valves to which could be attached flexible See also:hose terminating in the actual cleaning tools. The vacuum thus rendered available is in some cases utilized for washing the floors in See also:combination with another system of piping connected to a tank containing See also:soap and water, which having been sprayed over the See also:floor by compressed air is removed with the dirt it contains and discharged into the sewers; or in a simpler arrangement the soap and water is contained in a portable tank from which it is distributed, to be sucked up by means of the vacuum as before. In their third stage vacuum cleaners have become See also:ordinary See also:household implements, in substitution for, or in addition to the See also:broom and duster, and small See also:machines are now made in a variety of forms, driven by See also:hand, by See also:foot, or by an electric motor attached to the See also:lighting See also:circuit. In addition to their domestic uses, other applications have been found for them, as for instance in removing dust from printers' type-cases. Additional information and CommentsThere are no comments yet for this article.
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