An Improved Channel Cleaner

1890 Scientific American  
�dtntifi' �mtti,an. sure through a main conduit, by a pump or other means, and at different points :tlon� the conduit pipe are outlet valves to which a hose or flexible tUbing may be attached. Upon the other end of the hose is attached an extended water conductor or pipe, having perforations in its lower semi·circumference, adapt ing it as a sprinkler. An elongated cham ber, filled with any gas lighter than the air, is attached to the water conductor, to hold it, on the principle of a lJalloon.
doi:10.1038/scientificamerican05101890-293b fatcat:t3wyuvwnuffrfljxi4yl4cfate