Popular science monthly . Ulllllllliri,n,„„in,„„^ The barber cantbum your hair ifhe uses thissimple guard comb Utilizing theWelsbach S LIEB of NewYork must knowsomething of theneck-craning diffi-culties of cleaning aceiling. We judge sobecause he has in-vented a portablecontrivance com-prising a tank onwheels with a super-structure consistingof a movable or ro-tatable brush on anadjustable arm; aspray, also on anadjustable frame;and a centrallyplaced drip-pan tocatch all spray anddrops of cleansingfluid falling backfrom the spray fun-nel or ceiling. The tank is suli-divided to containboth the
Popular science monthly . Ulllllllliri,n,„„in,„„^ The barber cantbum your hair ifhe uses thissimple guard comb Utilizing theWelsbach S LIEB of NewYork must knowsomething of theneck-craning diffi-culties of cleaning aceiling. We judge sobecause he has in-vented a portablecontrivance com-prising a tank onwheels with a super-structure consistingof a movable or ro-tatable brush on anadjustable arm; aspray, also on anadjustable frame;and a centrallyplaced drip-pan tocatch all spray anddrops of cleansingfluid falling backfrom the spray fun-nel or ceiling. The tank is suli-divided to containboth the cleansingfluid (in the shade(lsection) and thedirty water conve\--edfromthedrip-pan. When air-pressureis applied through a. I Water is forced against the ceiling surface anda rotating brush moved by a gear and lever cleans it Waste fromMantlesX making Wels-li a c h mantlesnuist of the raw ma-icrial is dity per cent,ot that is light your cigarwith that cerium,(irobably. (^ombinedwith alcohol, it pro-duces alcohol-ignit-ing sparks whenscratched. If aWelsbach has brainsenough to device amantle, depend up-on it he has brainsenough to devise asi)ark-producing al-loy out of the wasteleft in the manufac-turing process of themantle. I f \- o u makes thellame of certain elec-tric arcs so white, at-tribute it to waste of theWelsbach mantle in-dustry actuallyserves to stimulate ari\al of the Wels-bach mantle itself. 842 Popular Science Monthly fcs^, T
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
