nd each of the vanes per face of the ridge secured to the lower edge of the opposite section. This arm is secured to the tie by partially rotated, thereby cutting off the wind from the top. To the under side of an auxiliary top are secured casters that roll along the strips. Back of the top there… … in a perfectly horizontal position. A dynamite cartridge made in the form spikes, as shown in Fig. 2. The elastic strip placed be- of a disk, 6 inches in diameter and three-fourths of an inch thick, and containing 174g ounces of dynamite, is tween the sections allows the rail to expand within cer-…
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