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Scientific American, Vol. 58, No. 11 (1888) (1888)
leaf 7
n Figs. 1 and 9. The The motion is analogous to that of the doors which shaft on opposite sides of the posts, to confine the most favorable position for the brushes may soon be slide at the top that are generally used in locomotive inelted metal, which is to form the journal boxes. Bab- found after… … LOCKS oF © 1888 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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