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Scientific American, Vol. 9, No. 26 (1863) (1863)
leaf 5
t being for the ordinary snatch-block, or for the cleat, so oxide.” made in two parts which embrace the rod of the much used on shipboard. This device is a very con- handle, C ; when the catch is pulled open the rod is ~ PALMER'S PULLEY BLOCK. venient one for the purpose mentioned previously, drawn… … most four men—a slight difference ! By this arrangement one man cau do as much work is one of the most heroic achievements of the war. © 1863 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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