a similar lever pivoted on hollow extension, designed to receive and removably to lower persons in safety from the upper floors of high the cross arm of the drum are so arranged, in con- retain a threaded handle piece, preferably of tin, hav- buildings to the ground, is shown in the accompanying… … short band or ring. The cylindrical portion and one ified by passing them through a solution of caustic VIEREGG'S FIRE ESCAPE. handle of the utensil are preferably made of glass, as potash or soda of T35—140 sp. gr., or of sulphuric a cool and non-absorbent material which does not re- acid of…
Patents · Munn · Contained · Deposition · Scientific American · Patent law · Express money · Water Supply · Printing lever · Patent system · Personal property · Reasonable doubt · Foreign Countries · Patents granted
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