Reports, Specifications, and Estimates of Public Works in the United States of America: Comprising the Philadelphia Gas Works; Reservoir Dam Across the Swatara; Twin Locks on the Schuylkill Canal; Delaware Breakwater; Philadelphia Water Works; Dam and Lock on the Sandy and Beaver Canal; Dam on the James River and Kanawha Canal, Virginia; Locks of Eight Feet Lift, on the Same; Aqueducts Across Rivanna River and Byrd Creek, on the Same; Superstructure, Etc., of Farm Bridges, on the Same; Lock Gates and Mitre Sills, Nide 2William Strickland, Edward H. Gill, Henry R. Campbell J. Weale, 1841 - 168 sivua |
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Reports, Specifications, and Estimates of Public Works in the United States ... William Strickland Esikatselu ei käytettävissä - 2017 |
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12 feet 12 inches 9 inches abutments arch beds bituminous coal bottom Breakwater burners bushel canal Cape Henlopen carbonization cement cent centre charge CHARLES ELLET Cherbourg coal gas coke Committee condensation construction consumers consumption contractor coping cost Councils course of planking cubic feet Delaware depôt eastern front engineer erected estimate expense extend face stone Fair Mount feet 6 inches feet long feet of gas filled formed fuel gallons gasometer headers hollow quoins inches square inches thick JAMES RIVER joints laid length less light lime lock lower wings main sill main walls masonry material meter Mortared Masonry obtained operation Philadelphia Gas placed posts produce public lamps quantity of gas rafter recess reservoir residuum retorts ribs river rock Schuylkill SCHUYLKILL CANAL Scottsville secured slope space Specific gravity spring-tide sufficient supply surface timbers trenails Trustees upper side white oak whole width yards
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Sivu 105 - They are fed under a natural head of water, from the forebays of the water-wheel, and are calculated for a six feet stroke : but hitherto it has been found more profitable to work with not more than five feet. They are double forcing pumps, and are connected, each of them, to an iron main of...
Sivu 107 - Committee therefore trespass a little in detailing the beneficial results produced by the new Water Works at Fair Mount, which have exceeded the warmest anticipations of their most sanguine friends. The calculations formed were of the most cautious kind, for there was little experience to guide...
Sivu 104 - ... On a line with the cornice of the central part is the base course of two pavilions, with Doric porticoes, which terminate the west front. One of these is used for the office of the committee ; and the other is the residence of an old and faithful servant of the corporation, who has the general care of the property at Fair Mount. On the east front, immediately over the pumps and forebay rooms, is a terrace, 253 feet long, and...
Sivu 106 - They are double forcing pumps, and are connected, each of them, to an iron main of sixteen inches diameter, which is carried along the bottom of the race to the rock at the foot of Fair Mount, and thence up the bank into the new reservoir. At the end of the pipe there is a stopcock, which is closed when needful for any purpose . The shortest of these mains is 284 feet long: the other two are somewhat longer.
Sivu 103 - The race is about 90 feet in width, and is furnished with water through the head arches, which allow a passage of water of 68 feet in breadth, and 6 feet in depth, to which the race is excavated below the over-fall of the dam, and of course room is allowed for a continual passage of 408 square feet of water. These arches are on the north of the race, and the mill-buildings being on the west, the water passes from the race to the wheels, which discharge the water into the river below the dam. The...
Sivu 43 - The following communication was addressed to the Select and Common Councils of the City of Philadelphia : — GENTLEMEN : — The undersigned...
Sivu 32 - The axle of the revolving cylinder operates upon gearing, to which clock hands are affixed, indicating on the dial the number of revolutions made, and, consequently (the capacity of the cylinder being previously ascertained), the quantity of gas consumed is measured. The adoption of this system tends to the advantage of all parties. The consumer pays for no more than he uses, and, consequently, burns with as much economy as is consistent with his interest, and the producer not subjected to loss from...
Sivu 103 - On the west of the excavation are erected the mill-houses, forming the west side of the race, which is supported on the other side by the rock rising above it seventy or eighty feet perpendicularly. The south end or wall of the race is also of solid rock, and the mill-houses 'are founded on rock, so that nothing can be contrived more secure in all respects.
Sivu 45 - Pennsylvania labour. The bituminous coal from which it is to be made may be drawn from the rich mines now open in the interior of this state ; the fuel from the exhaustless beds of anthracite, and the lime for purification, from our own vicinity ; and not a lamp will shed its rays over our streets which has not paid a tribute to the internal improvements of the state.
Sivu 103 - At the upper part of this excavation are erected the head arches, three in number, which extend from the east end of the mound dam to the rock of the bank; thus forming a continuation of the dam.