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Scientific American, Vol. 52, No. 7 (1885) (1885)

leaf 3

An illustration from Scientific American, Vol. 52, No. 7 (1885), 1885, leaf 3
e front ends of the front of the opening in the plate, D. The dial is di- notch in the upper side—the presser being correspond- frames down to give the pawls a fresh grip. The two vided into spaces by concentric and radial lines. Each frames are depressed alternately, and by means of their space… … IMPROVED HARROW. VOSSMER’S IMPROVED TRICYCLE. DREW, LEISNER & NELSON’S was indicated. The dial will then show just how much the work stands out of level for ingly curved—to form a.good bearing and easy work- any given length in the level, shown up to sixteen ing joint. The plate is formed with…

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