Minutes of Proceedings of the Institution of Civil Engineers, Band 2
The 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.
Was andere dazu sagen - Rezension schreiben
Es wurden keine Rezensionen gefunden.
Andere Ausgaben - Alle anzeigen
advantages amount angle apparatus arches Arthur Woolf ascertained Assoc average 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 employed 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 pumps 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
Seite 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.
Seite 217 - Memoirs and accounts of the Works and Inventions of any of the following Engineers : — Sir Hugh Middleton ; Arthur Woolf; Jonathan Hornblower ; Richard Trevithick ; William Murdoch (of Soho) ; and Alexander Nimmo. Original Papers, Reports, or Designs, of these or other eminent individuals, are peculiarly valuable for the Library of the Institution. The Communications must be forwarded, on or before the 31st of May, 1844, to the house of the Institution, No.
Seite 81 - ... hydrometer. A more perfect test is the action of the solution upon silver, which it turns brown at the requisite degree of saturation. The operations of exhaustion and pressure employ eight men for five hours, the whole process occupying about seven hours, during which time from 17 to 20 loads are kyanized in each tank. It is desirable that the timber should remain stacked for two or three weeks after kyanizing before it is used. It was found that about } Ib.
Seite 155 - They are superior to maps, as they show at a glance the relative heights of the various points, display the geological phenomena, and may be made to delineate the state of cultivation of the districts. The lines of railways, of roads, or of canals, can be more clearly defined upon them, and they are stated to be peculiarly adapted for parish surveys.
Seite 88 - Mr. Bethell found that some solutions were taken up more rapidly by the sap and circulated with it more freely than others. and the pyrolignite of iron seemed to answer best ; he had not hitherto introduced the process in England, because .it was much more expensive than the oil of tar, the pyrolignite costing from 6d.
Seite 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...
Seite 205 - ... 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...
Seite 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...
Seite 180 - 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.
Seite 75 - He affirmed that friction was not augmented by an increase of surface, but only by an increase of pressure ;* and in a subsequent paper, illustrated by some experiments on wood and metals pressed by springs of known intensity, he drew similar conclusions, with [the addition that friction was one-third of the pressure, and that the amount was the same both with wood and metals when unguents were interposed.