Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 486
re opposite page 164. It is astonishing to see apound of fine flour removed from a thick carpet in twelve seconds,leaving behind not one visible particle. This plan cleanses carpetswithout their being lifted from floors, or a billiard cloth just as itstands on a table. This service greatly promotes… … 424 COMPRESSED AIR In Lyells Bay, near Wellington, New Zealand, and in many other places throughout the world, flints have been found so beautifully and symmetrically polished that Sand-blast. they were at first believed to be products of art, yet nothing but wind-blown sand had given them form.…
Inventions · Inventors
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