t the quarries in the South are better equipped with machinery and with modern ap- found at the Brandywine quarries a machine at work what modified, is in use by the contractors who are building the Sodom dam, and I have also seen it in pliances than those in the North. Any one who has splitting up… … WIRE CABLE HOISTING AND CONVEYING APPARATUS AT QUARRIES OF THE BRANDYWINE GRANITE CO., WILMINGTON, DEL. quarries of Vermont, going there with a view of enter- to it, which showed, beyond dispute, that the work quarries in Vermont that might apply it with profit to can be done cheaper by machinery…
Shaft · Munn · Iron · Scientific American · Center · Congress approved · Central rod · Auxiliary barrel · Large gear · Single copies · Hot water · Express money · Perspective view · Breech cap
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