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Scientific American, Vol. 12, No. 34 (1857) (1857)

leaf 3

An illustration from Scientific American, Vol. 12, No. 34 (1857), 1857, leaf 3
y hand labor this is itar properly formed, the trap door, F, is shut Automatic Alarm for Locomotives. F and J, which latter are half round, so t ‘at Harrison’s Automatic Whistler, a device when fitted together for use their flat sides work in tight contact each with the other,and which we noticed… … course of many kinds of business. It appears form us, that with the labor of one man and down, the drag then gathers the mortar by measure, made into a proper consistency highly desirable, if practicable, to make pro- formed into a heap, if desired, or pushes it a horse, thirty casks of lime can be…

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