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Scientific American, Vol. 97, No. 14 (October 1907) (1907)

leaf 11

An illustration from Scientific American, Vol. 97, No. 14 (October 1907), 1907, leaf 11
which serves as rod may be subdivided, as indicated in the illustration. a guide for bringing ties forwardly in laying them. of the side bars, the ladder does not readily sink into A patent on this improved leveling rod has been se- The tie channel extends to a great distance ahead of soft and… … IMPROVED TRACK-LAYING MACHINE. IMPROVED LEVELING ROD. © 1907 SCIENTIFIC AMERICAN, INC.

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