Minutes of Proceedings of the Institution of Civil Engineers, Τόμος 2The Institution, 1844 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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advantages amount angle apparatus application arches Arthur Woolf ascertained Assoc axles Boilers Boulton and Watt bricks bridge buckets Canal carbonic acid cast-iron caused centre Chair chalk Civil Engineering clay coal communication construction copper corrosion Cubitt curve cylinder depth described Description Ditto Drawings effect experiments Farey feet force friction furnace given horses inches diameter increased Inst Institution iron kyanized labour load London machine machinery Manby Maplin Sand Messrs metal miles minute mode nearly observed obtained paper patent slip piers piston Plymouth Breakwater practical Premium of Books present President pressure produced Professor proportion pumps quantity rails Railway Rennie reservoir river river Colne River Thames sand sleepers spring square inch steam steam-engine stone stroke supply of water surface Telford Telford Medal Thames timber tion tons Tract trenails Tunnel Turbine valves velocity vessels Walker Premium weight wheel WILLIAM CUBITT wood wrought iron zinc
Δημοφιλή αποσπάσματα
Σελίδα 44 - A Description and Draught of a new-invented Machine, for carrying Vessels or Ships out of, or into, any Harbour, Port, or River, against Wind and Tide, or in a calm.
Σελίδα 185 - A pint of oil, when burnt, produces a pint and a quarter of water, and a pound of gas more than two and a half pounds of water; the increase of weight being due to the absorption of oxygen from the atmosphere, one part of hydrogen taking eight by weight of oxygen to form water.
Σελίδα 80 - ... on to the circumference of the tanks. Notwithstanding the great strength of these girders, several were broken by the pressure applied during the process. The vessels are lined with felt, upon which is laid a covering of...
Σελίδα 207 - ... should not have any effect in disturbing or altering the flame. It is found that the wind may blow suddenly in at the cowl, and the effect never reaches the lamp. The upper, or the second, or the third, or even the fourth portion of the ventilating flue might be entirely closed, yet without altering the flame. The cone junctions in no way interfere with the tube in carrying up all the products of combustion ; but if any downward current occurs, they dispose of the whole of it into the room, without...
Σελίδα 94 - ... are so small as to be easily obstructed or choked. The water enters the buckets in the direction of the tangent to the last element of the guide curves, which is a tangent to the first element of the curved buckets. The water ought to press steadily against the curved buckets, entering them without shock or impulse, and quitting them without velocity, in order to obtain the greatest useful effect, otherwise a portion of the water's power must be wasted or expended without producing useful effect...
Σελίδα 86 - ... bars. The operation was one of much delicacy, and depended entirely upon the skill of the workman. Mr. Heath believed the manufacture of steel was involved in unnecessary mystery; it was the general opinion that foreign iron was essential to produce good qualities. Iron as now made from coke furnaces certainly contained too much foreign matter to be used for steel, and it would require more attention to the selection of the materials, before pure iron could be obtained; some of the Low Moor iron,...
Σελίδα 182 - Waterloo-bridge, and thence to the top of the tower, where one of the telegraphs was placed ; the wire then descended, and a plate of zinc attached to its extremity was plunged into the mud of the river; a similar plate was attached to the extremity at the north side, and was immersed in the water. The circuit was thus completed by the entire breadth of the Thames, and the telegraphs acted as well as if the circuit was entirely metallic.
Σελίδα 19 - Embankments, with the cost thereof. 30. The proper slopes for Cuttings and Embankments in various soils. 31. Notice of the principal Self-acting Tools employed in the manufacture of Engines and Machines, and the effect of their introduction. 32. On the most effective and best adapted Machines for bruising or crushing the...
Σελίδα 186 - ... the ascending flue from its place over the lamp, not from any deficiency in action, but for appearance sake only ; and finding that there was sufficient ascension power in the main part of the metal chimney to allow of a descending draught over the lamp, the tube, in place of going directly upwards, was made to turn short over the edge of the glass, to descend to the arm or bracket, to pass along it, and then ascend at the central part of the chandelier, or against the wall, if applied to a single...
Σελίδα 207 - ... the lantern, but a portion of the air passes from the lantern by these apertures into the flue, and so the lantern itself is in some degree ventilated. The important use of these cone apertures is, that when a sudden gust, or eddy of wind, strikes into the cowl of the lantern, it should not have any effect in disturbing or altering the flame. It is found that the wind may blow suddenly in at the cowl, and the effect never reaches the lamp.