Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 841
FIG. 597.—CABLE ROLLER. a disadvantage when all-metal cable hangers are used, in that thesliding of the hanger hooks along the messenger wire tends to loosenthe hangers on the cable, sometimes to such an extent that severalof them become bunched at one point of the cable. A modification of this…
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