Minutes of Proceedings of the Institution of Civil Engineers, Volume 85The Institution, 1886 - Civil engineering Vols. 39-204 (1874/75-1916/17) have a section 3 containing "Abstracts of papers in foreign transactions and periodicals" (title varies); issued separately, 1919-37, as the institution's Engineering abstracts from the current periodical literature of engineering and applied science, published outside the United Kingdom. |
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Common terms and phrases
American Author average bridge buddles C.E. VOL Canadian Pacific Railway carried cars cent centre charcoal chemical coefficient coefficient of friction combustion construction cost cubic centimetre cubic feet cubic metres cubic yards curves cylinder depth diameter discharge distance engine England English experiments explosion filter filtration foot FREDERICK BRAMWELL friction gases gauge girders gradients heat holes increase Inst iron jigger Kicking Horse Pass Kicking Horse River laid lamp-black length load locomotives lower water-level masonry material matter maximum metres per second micro-organisms microphytes miles millimetres minute mixture obtained ore-stuff organisms Paper pass passenger piers Plate Portland cement practice pressure quantity radius Railroad rails railway reduced resistance river rock rolling-stock sand shaft side sleepers span speed square inch steel surface temperature thickness timber tons Total traffic trains tubes velocity vent portion wagons weight weir portion width wire zinc
Popular passages
Page 380 - ... friction diminishes; and again rises when that speed is exceeded, varying approximately as the square root of the speed. 4. The coefficient of friction varies approximately inversely as the temperature, within certain limits, viz., just before abrasion takes place.
Page 233 - Organized matter is, to a large and sometimes to a most remarkable extent, removable from water by agitation with suitable solids in a fine state of division, but such methods of purification are unreliable.
Page 281 - This engineer states in his memoir on " The Design and Stability of Masonry Dams :" * " Owing to the indeterminate nature of the problem, it seems impossible to construct a general formula for calculating the dimensions of a dam, and the method usually followed consists in assuming an approximate profile, and then testing its stability by a graphic resolution of forces. If found defective the profile is altered, and the graphic process repeated until a sufficiently exact result is obtained.
Page 380 - The coefficient of friction with surfaces efficiently lubricated is from £ to -^ that for dry or scantily lubricated surfaces. 2. The coefficient of friction for moderate pressures and speeds varies approximately inversely as the normal pressure ; the frictional resistance varies as the area in contact, the normal pressure remaining constant. 3. At very low...
Page 348 - He shall construct each footway in such street so that the height of the kerb or outer edge of such footway above the channel of the carriageway (except in the case of crossings paved or otherwise formed for the use of foot passengers) shall be not less than three inches at the highest part of such channel and not more than seven inches at the lowest part of such channel.
Page 353 - ... inch gauge, and then heated on iron plates with fires burning underneath. The gravel, or chippings, having been thoroughly dried and heated, the following ingredients are mixed together, boiled in iron cauldrons, and added whilst hot; 12 gallons of tar, ^ cwt. of pitch, and 2 gallons of creosote to about I ton of the screened materials.
Page 209 - Reduction in the number of micro-organisms present in the original water = 51 per cent. In order to appreciate the value of the treatment by Dr. Clark's process, it is necessary that the treated waters should be compared not only with the original water, but also with the untreated water after eighteen hours' rest ; for the latter obviously indicates what the condition of the water would have been at the time of examination, if no lime-water had been added. It appeared probable that after the subsidence...
Page 209 - It appeared probable that, after the subsidence of the carbonate-of-lime precipitate had taken place, the organisms which had been carried down by the latter would again become distributed throughout the upper layers of the water. In order to ascertain whether this was the case or not, the same waters which had remained stoppered up and at rest, were again examined after the lapse of ten days. It was then found that the untreated as well as the softened waters contained immense numbers of organisms...
Page 335 - New York, New Haven and Hartford New York Central and Hudson River New York, Lake Erie and Western...
Page 207 - ... filters already described. The water was then allowed to subside, and the clarified water submitted to examination, as soon as possible after complete subsidence had taken place, as it appeared probable that if the organisms were simply carried to the bottom by the subsiding particles without suffering any injury, they would rapidly again become distributed through the upper layers of water by multiplication. This supposition has been amply verified by experiment. Agitation with Spongy Iron....