Popular science monthly . e from the interior of afifteen-million-gallon reservoir under con-struction in Omaha, Nebraska, the cable-way illustrated was built from scrapmaterial in a short time by the black-smith on the job. The A frame was built with an oldlO-in. sheave at the top, over whichpassed the carrying cable. This was apiece of ordinary galvanized strand suchas is used for guy wire, and the hoistingline was ^4-in. manilla rope. The carrierwas built of 5s-i- ^V i i^-in. flat iron,using sheaves from old pulley blocks forthe running and hoisting sheaves. Themovable block, to which was a
Popular science monthly . e from the interior of afifteen-million-gallon reservoir under con-struction in Omaha, Nebraska, the cable-way illustrated was built from scrapmaterial in a short time by the black-smith on the job. The A frame was built with an oldlO-in. sheave at the top, over whichpassed the carrying cable. This was apiece of ordinary galvanized strand suchas is used for guy wire, and the hoistingline was ^4-in. manilla rope. The carrierwas built of 5s-i- ^V i i^-in. flat iron,using sheaves from old pulley blocks forthe running and hoisting sheaves. Themovable block, to which was attachedthe hook for suspending the load, was an8-in. block with a long pin through thesheave to engage the stop on the carrierwhen the tackle was at wheel-barrows were attached by athree-chain grab. With the cableway in operation, thewheel-barrows were loaded inside thebasin, wheeled under the lower stop ofthe cableway and the grab chain at-tached. The load was raised by ahoisting line to the two-block posi-. Releasin-; tbe Hoistin; Line at the Two-Block Position Lowered the Wheel-Barrow tion, and then hauled up on the carrierline. Upon reaching the head frame thelong hook was dropped to engage a pinin the top member of the carrier. Whenthe hoisting line was released the wheel-barrow was lowered to the ground. Thegrab chains were released and the loadwheeled to the dump. An empty wheel-barrow was then attached, hoisted to thecarrier, the hook released and the loadsent to the floor of the basin. On thiswork a small hoisting engine was used. w The Senators Subway
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
