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Scientific American, Vol. 6, No. 42 (1851) (1851)

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An illustration from Scientific American, Vol. 6, No. 42 (1851), 1851, leaf 0
y a spiral spring, r, to a small bar, s, placed across the standards ; New York and New Haven Railroad. this spring has a tendency to push down the We endorse the following commendations inking roller. A tangential bar, p, is secured of this road from the Daily Sun of the 27th to the barrel, P, and… … motion of the platten, throwing it upwards be completed in the course of the year. Oys- and giving the barrel part of a revolution, by ter shells are being put upon the road, to pre- which the arm, Q, is thrown towards the vent the rising of the dust, so annoying to passengers, and in a short time…

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