The Practical mechanic's journal . housekeeper insists upon his chimney being swept clean, and the pre-sent state of the flues does not permit of this being done by machinery;the other is, that the master sweep obtains more soot by system of sweeping square chimneys with circular brushes, is un-philosophical, and practically bad. To remove this objection, 1 propose toimprove the brushes for existing chimneys, and to construct all futureones upon a different principle. It is obvious enough that flues of squaresections ought to be swept with flat or square brushes. I should say
The Practical mechanic's journal . housekeeper insists upon his chimney being swept clean, and the pre-sent state of the flues does not permit of this being done by machinery;the other is, that the master sweep obtains more soot by system of sweeping square chimneys with circular brushes, is un-philosophical, and practically bad. To remove this objection, 1 propose toimprove the brushes for existing chimneys, and to construct all futureones upon a different principle. It is obvious enough that flues of squaresections ought to be swept with flat or square brushes. I should say thatordinary flat brushes might be made to answer well, if attached to theflexible rods at present in use. If circular flues were adopted, they mightbe most effectively swept by the ordinary circular brushes, and to mymind, this form of flue may be rendered more ornamental than any other. The accompanying drawings will serve to show that three differentshapes of bricks will be sufficient to meet the demands of every l-16th, real single chimney, fig. 1, is suitable for houses built with 9-inch walls,the bricks being 9 inches long, and the internal diameter of the flue 12inches; this is the size Iconsider the best. But tobuild the fire-places, andthat portion of the chimneywhich is within the house,the bricks represented infig. 2 are best, as they willfit in square with the the single chimneys ofhouses with 4J inch walls,I would recommend thelatter shape for the interior l-20th. work, and the same, rounded externally for the upper visible part. Allpracticalmec118481849glas
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Keywords: ., bookcentury1800, bookdecade1840, bookidpra, booksubjecttechnology
