Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 841
FIG. 59S.-CABLE TROLLE-?. support involves the use of the apparatus shown in Fig. 596. Abracket, such as shown in this figure, carrying a grooved pulley anda temporary support for the messenger wire, is temporarily attachedto each pole. As the cable passes each pole the pulley serves toraise the…
Telephone
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