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Scientific American, Vol. 35, No. 15 (1876) (1876)

leaf 3

An illustration from Scientific American, Vol. 35, No. 15 (1876), 1876, leaf 3
then fed up to the drills. This shaft of B. Dis a grooved stationary pulley formed on or table can be raised either automatically or by hand through attached to the standard; and E (dotted lines) is a small pul- the gearing shown. The drills are mounted onan upper ley outside the balance wheel, but… … Now, as the brightest light driver pulley, so that the gear- of a full moon is never equal ing augments the speed just CAR TRUCK FRAME DRILLING MACHINE. in intensity or quality to that sevenfold, without requiring rapidly becoming an ingredient of the highest importance. which is reflected towards…

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