its equili- liable to form. A decrease in atmospheric pressure forces brium is disturbed. Rider, r, is therefore shifted until inches. Great care has been taken in the design to it out in the workings, where it may be fired by a shot, equilibrium is restored. The position of this rider keiep the… … INSTRUMENT FOR INDICATING FIRE DAMP IN MINES. observer's. The amount of this overweight is deter- speed in the direction of the wind was 22*43 knots, mined, as before, by rider, r, and the percentage of fire and the following times which it took to complete tied that the explosions supposed to be…
Patented · Patents · Piston · Contained · Munn · Scientific American · Quick return · Carbonic acid · Steam engine · Nerve force · Fire damp · Marsh gas · Address munn · Horse power · American supplement
Internet Archive · Public domain (published before 1931). Free to use for anything.
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