dle, and therefore tightened, the hammer will be forced down, thus caus- square inch. The weight on the drivers is 186,000 that of the arms and carrier balls, can be increased or ing a strong, yet yielding blow to be struck. After pounds, which is only exceeded by the great Pittsburg decreased.… … but the piston in the main chamber of the hammer- of December 3, 1898, which has 208,000 pounds on the the abrading material upon the lens, and the carrier- drivers. The total estimated weight of the locomotive head will continue to move down against the resist- balls will be rocked so as to grind…
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