Sand and Gravel Dredging Methods and Costs of J.K. Davison & Bro., Pittsburgh, Pa |
Common terms and phrases
1-inch mesh 1-inch screens 1-inch trommel plate 15 tons 17 inch bar 3-ton bucket Allegheny River Allegheny TABLE boat boilers bolts bucket chain bucket line Bureau of Mines capacity Capstan cars cast manganese steel chief engineer chutes Column set crew Davison & Bro delivering 2,000 gallons discharged dredging operations elevation equipment feet long feet wide filtered water flatboat moored gravel sump hopper hopper-type barge igneous rocks inch mesh inch thick inch trommel screen inches in diameter J. K. Davison kilowatt-hour ladder manganese-steel material dredged modern facili Ohio rivers oversize plant pumps quicker to unload railroad car retained on inch riveted sand and gravel sand jackets sand screen sand sump screen passes shaft side sizing screens slack bucket spuds square punched holes steam hoist structural steel tires tons of sand tons will pass towboat trommel screen inch trunnions type of barge undersize unperforated steel plate upper sheave variable-speed motor Vibrator screen wear