Handbook of Construction Plant: Its Cost and Efficiency |
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Handbook of Construction Plant: Its Cost and Efficiency - Primary Source Edition Richard Turner Dana No preview available - 2013 |
Handbook of Construction Plant, Its Cost and Efficiency Richard Turner Dana No preview available - 2012 |
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amount Asphalt average barges belt boiler boom brick hods bucket cable cableway capacity cars cents Chicago chute coal compressor concrete construction contractor conveyor cost of operation crucible steel crushed crusher cubic yards cylinder depreciation derrick Diam diameter dipper dredge drill driving drum dump Dunellen Electric engine equipment excavation extra feet foot Foot Length friction drum gasoline grade gravel gyratory hammer handling hauling hoisting hole hopper horse horsepower hose hour hull inches iron labor Length load machine Machinery Manufacturing material miles mixer month motor outfit pile pile driver pipe plant Plow Pounds Price pulley pump rails repairs rock roller rope sand scraper sections Sheave shovel speed steam steel stone TABLE tank thermit tons Total cost tower track traction engine trench truck Union Iron wagons Weight wheels width wire wire rope York York Barge Canal
Popular passages
Page 83 - Rock Excavation," says: " Use of a Blasting Mat. For preventing accidents due to flying rocks, all blasts in cities should be covered either with timbers or with a blasting mat. This should be done to avoid suits for damages, regardless of city ordinances. A blasting mat is readily made by weaving together old hemp ropes, 1% in. diameter or larger. To make such a mat, support two lengths of 1-in. gas pipr parallel with one another and as many feet apart as the width of the mat is to be.
Page 214 - ... with approval among dredge-operators in general, who contend that the efficiency of these boats, both as to yardage and gold-saving capacity, is not up to that of the standard type. These boats have a low first-cost (about $25,000, fob factory) and are built with buckets of from 1.25- to 2.5-cu. yd. capacity. It is. claimed by the dealers and some operators that under the following conditions there is a field for this type of dredge : (1) where the ground is somewhat shallow ; (2) where the extent...
Page 214 - ... Construction Co., of San Francisco. The dredge was shipped from San Francisco on June 1, arriving at Nome June 13. On June 17 the company commenced hauling material, and on July 22 the dredge was completed and operations started. The dredge-hull is 30 by 60 by 6.5 ft. It is equipped with 34 open-connected 2.75cu. ft. buckets, and is designed to dig 14 ft. below water-level. Power is furnished by gasoline-engines as follows: one 50-hp. for digging-ladder, winches, and screen ; one 30-hp. for pump...
Page 321 - Company a number of storage houses are described, and the following data are compiled: On October 1, 1911, Massachusetts, New Jersey, Ohio, California, and Oklahoma had laws regulating distances at which specific quantities of explosives might be stored with reference to dwellings, public buildings, railroads, etc. Almost all cities and towns have laws regarding this and all who intend to store explosives should inform themselves on all state and local laws. Where no laws affecting storage of explosives...
Page 402 - Ib. for new style cars per short ton on a level track. The mine cars used had a wheel base of 3% ft.; they weighed 2,140 to 2,415 Ib. empty and 7,885 to 9,000 Ib. loaded. The diameter of the wheels was 16 in., a'nd of axles 2% in.
Page 454 - ... hammer in combination with the water jet. Piles 30 inches in diameter were driven by resting the hammer on their edges and driving with the jet. Piles as long as 150 ft. were driven on this work. The total weight of the machine was 60 tons and its cost about $12,000. The Louisville & Nashville RR Co.
Page 213 - ... of hull and equipment is 4,640,862 pounds. Natoma No. 10 dredge, now under construction, is equipped with 15-cu. ft. buckets, and will have a steel hull, being the first dredge operating on a steel hull in California. The hull will be 150 by 56 by 10.5 ft. and will have a total weight of 920,000 lb. This will be about one-half the weight of a wooden hull to carry the same machinery, and the draft of the boat will be considerably lighter. This boat will be in operation in April, 1912. Owing to...
Page 212 - California cost from $25,000 to $265,000 each; a standard 8.5-cu. ft. boat costing from $150,000 to $175,000, according to conditions to be met in operation. With great improvements made in dredge-construction, and corresponding reduction in operating-costs, areas that were at first considered too low grade to be equipped with a dredge are being profitably worked, and the gold-production from this source, according to the...
Page 228 - ... wage. This is in accordance with the union rules on the great lakes. The dredge is working in very stiff gumbo clay which is covered with a layer of from 3 to 5 ft. of sand. The depth of the dredging at Chicago is from 18 to 35 ft. and the material was deposited through about 2,000 ft. of pipe. Cost of Dredge. The following table gives the list~ of items which together make up the cost of the dredge as it was put in operation in 1910: Engineering, plans, inspection, etc $ 9,816.45 Contract (1907)...
Page 60 - The barges used in the earliest years of this improvement for carrying rock and brush, were mostly of smaller size than those at present employed, were built of white pine, and with caulking and nominal repairs, gave good service for periods ranging from eight to eleven years.