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Scientific American, Vol. 62, No. 16 (1890) (1890)
leaf 3
spacing may be exert a tension at both ends. When the frame, G, ro- up, the levers, I, being down, the drawer may be closed effected without using the hands therefor, is shown in tates, motion is imparted to the several devices in the in the ordinary way, but when strongly pushed home the… … LAWRENCE’S LOCK, © 1890 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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